In case you missed it at the very end of the video. We just announced our latest project startpropeller.com/. Propeller is an engineering recruitment platform that we created to share the most exciting and innovative jobs in engineering. Take a look at the jobs with our launch partners Hermeus, Relativity Space and Helion. If you don't see anything relevant be sure to sign up to our newsletter to get updated on engineering news and opportunities.
I'm lazy so I hope you'll one day accept resumes and let the companies come to us instead. I know Hermeus at least uses the EDM that I work on, but I'd like to let the others know I exist too. *or should I say I'm just satisfied with where I am, and thus lazy about a job search, but if I get an interesting offer then maybe
Congratulations. What a cool project. Your years of work on RUclips have made you THE GUY to do this. Massive respect. I hope Propeller is wildly successful, makes you wealthy, and helps tons of young engineers get stellar jobs. You're a scholar and a gentleman. I only dream of being a hardware engineer, but I see there are already a few software jobs on there that I just might qualify for. VERY COOL!
As a young aerospace engineer, the discussion about manufacturing at the end of the video was what sold me on the potential of this company. Being able to get up from your desk and talk with a machinist who will make your part or a technician who will handle it is what makes the difference between a project that goes from a blank sheet of paper to flight in 5 years and one that gets cancelled after 15 years of wasting money. The business case might be dubious, but with a great mindset and team like that building the aircraft will be no issue.
Completely agree. I work in satellite production and design engineers were like bigfoot in our building. We actually relocated our testing labs to the same building to force them to walk through production
That's the kind of company I want to work at. Talented, passionate, and driven individuals working towards a beautiful goal. Love the Propeller concept. We definitely need more focus like this.
Wow ,another above and beyond American gotta get there now project.imagine,if conflict regarding Homosapien?,ihink it's spelled,notice first concern was our ambitious neighbors,China ,seeing the world as a small homes for the above,If,we never had wars of any type,Ant colonies, with a democracy ideology, instead of a monarchy,we,inhabitants of earth ,more likely we could have achieved colonization on other planets,especially our,milkyway system , traveling safely and securely, take a cruise to see the rings around Sature,endless possibilities,Time is everything, because death is a constant,knowing that fighting waste precious time,so potential and possibilities, will reveal ourselve,that there's nothing that can't be accomplished 😊
Moved over to work at Relativity Space 6 months ago after 3 years at Tesla, and I’m genuinely so glad to see that your platform here on RUclips is being used to broadcast such a great company to a larger audience. It’s a wonderful place to work where the leadership really care about you and share the engineering drive that so many of us young engineers have. Come build the future with us!
Ah, great. Let me ask you the things never mentioned that seem like major issues: At Mach 5 you get a plasma build-up that blocks radiation: Can this get GPS signals? The SR-71 was titanium to retain rigidity at high temps: What material will they use!?? Inconel is heavy (steel+nickel, as mentioned) what's the max range (fuel efficiency)? No one's trying to save 40 min off the hour flight from LA to LV. How far can this fly? Each doubling of speed SQUARES the resistance. SR-71 mid-air refuel at 2,500 miles. The "passenger" of the SR-71 weight was FUEL. As in, HALF of the vehicle by weight. There are so many fundamental questions of PHYSICS before engineering should've been entertained. Yes, you'll always make useful discoveries when doing fundamental science; but is the goal here to make non-stick frying pans or memory foam mattresses?? Bc they should've calculated off the absolute thresholds of physics: The fuel required to go from London to Tokyo, the cost of the fuel to see the minimum cost per person to see if a market even EXISTS of people who'd spend $10,000 extra to save even 80% off the time of their flight. That's still ignoring the market size ... bc at $10,000 per flight you're competing with people who may own their own aircrafts. Likewise, sizing the vehicle off the number of passengers it need to reliably FILL to compare against the market. Are there really 500 people a day who'd spend over $10,000 a flight (which is likely on the very low end) to save 10 of the 12 hours? The LONGEST flight is 18 hours 40 minutes: Is it worth $10,000 to 500 people a day to do that flight in 3 hours and 30 min? And again, $10,000 sounds so ridiculously on the low-end its hard to bring myself to say it. And that's assuming it could travel that far. I highly doubt it'd have the fuel available to do so. What's the minimum distance it'd need to be able to travel to offer meaningful utility (not novelty)? What percent of the vehicle would have to be fuel? Because a ROCKET is 90% (and can be higher). How much room is left for passengers ... and how enormous would it have to be to hold 100 passengers and the luggage of people spending $10,000 to $20,000 for a flight? Did someone calculate the energy available from fuels vs the CD and resistance at the speeds targeted within the existing infrastructure to size the vehicle for a particular range? Or are they going to create yet another entire (fuel) infrastructure for just their vehicle (as was required with JP-7)? Are they going to need mid-air refueling like the SR-71 did..?? Vehicles are LOST doing that. Not only would it be another entire layer of risks ... but are they going to have FLEETS of aircraft to mid-air refuel theirs?? Talk about an additional layer of ridiculous. Again, further competing with people who OWN their own aircraft as prices spike. With all the absolutely brilliant people there ... how could someone not have considered these challenges, calculated them & brought them to the attn of the proprietors, but more importantly, the investors to whom they have a fiduciary duty to be candid as to whether this is just research or if it has any chance of reaching market.
Beautiful ie that part about young etc that's what we need trust me hence this video loop they keep playing for us needs to cease trust me hence we need NEW YOUNG BRILLIANT MINDS TO STEP UP with also some guidance from the main elders who share your drive and all etc seriously you Guy's get it done man make change make new make lookie here at this etc 👍
I'm not an engineer, and a lot of these videos take me hours to get through because i'm always going down rabbit holes on other tabs googling things talked about to get a better understanding, but this is by far my favourite channel on youtube. Every time you release a video I get excited that my dinner is about to have some great entertainment to go with it. Thanks for everything you do!
I'm (nearly) an engineer and I respect you for going in the deep of it, it takes a lot of effort for an "outsider" and it's fscinating to see such devotion
@MrMichaelFire , I've worked as an engineer in R&D for about 15 years. Your statement is ridiculous. We have a saying. "Anything worth doing is worth doing poorly" Quickly moving from a concept to prototype to learn and prove things out is extremely effective. It's basically why SpaceX can do 100x what NASA can do with the same funds.
You're an engineer at heart then, engineering is all about breaking jargon down into small understandable bits that you can digest, and over time build and literate on your knowledge.
I've managed to prototype & PoC on a bedroom. You do have to be very good with resource management though, since you're effectively banned from using traditional tooling&manufacturing equipments in this environment. It does make the challenge more harder, probably borderline impossible if you want to test a jet engine at the scale these guys are doing, but most likely viable on smaller scales.
He's very passionate, understands exactly what they are building, and well spoken. The US Government doesn't give out $100 Million dollar military contracts for nothing. Probably a company to invest in going forward.
@@LIONGODI’m interested in hearing how you would sound whilst orating! Perhaps he could do better, but I’m sure he’s happy with his above average intellect and wealth! 😂😂😂
In Skunk Works (the company that designed the U-2, SR-71, X-15, F-22, F-35, etc etc ad infinitum) engineers regularly went to work in overalls, because desks don't invent anything. It sounds like Hermeus is taking the same, time-proven tactic. Awesome to see.
@@moneybilla "lmao" oh, I'm so embarrassed I chose the wrong word! Whatever shall I do?!? Thank you, oh wise one, for laughing as you school my incorrect word choice! Almost as poor a choice as your "use to be", as opposed to the correct "used to be".
Note: The X-15 was designed, built, and flown by North American Aircraft. My father had the privilege of working on the the crafts sheet metal. The drooping wing tips on the Hermeus is in fact the second craft to make use of a North American Aircraft feature on the XB-70, a prototype to replace the B-52 , and using compression lift via those adjustable wing tips. As an eight year old I had the privilege to see it on roll out in Palmdale at the defense plant-another project my father worked on. It would amuse my father had he lived to see that feature one day on another record breaking project.
I love the idea that Brian had a neuron activation moment the moment he saw a working Turboramjet. That’s some crazy technological advancement for a company like that.
Lockheed would have had a supersonic airliner with turboramjets if it wasn't for politics. Much of the technology for that jet was coming from the SR-71
@@nikolaideianov5092 Well, its larger size and turboramjet engines, ones that could also make use of a high bypass duct for air, likely could have made it a bit more profitable. Maybe even as a supersonic cargo plane.
@@WolfeSaberYeah like nikolai said: You can't cheat physics and if you double the speed you quadruple the air resistance so you have to burn 4x the fuel to get there and it just wont be cost effective for regular passengers.
The romance of supersonic flight easily captures the heart. But fuel costs per seat is the metric you will have to solve in order to capture the minds of airlines.
Nothing that I saw in this video impressed me, the ramjet technology and limitations of high temperature metallurgy go back to the 1950's (SR-71). Any piece of metal that reveals visually discernable voids is useless for any high stress purpose. So much of what this engineer talks about is speculative and unrealistic.. the greatest challenge to Mach 5 and faster flight in an atmosphere is extreme heating from air friction.. which makes metals brittle and fail. Elon Musk's Starship appears to be a far more viable solution for timely earth to earth transport.
@@MrMichaelFire In the first step they build a cheap testing platform to advance science. I think they are in early stages of development and will buy the most talented people with american military funding
@@MrMichaelFire You seem to be obsessed because you're wasting your time being hateful like you have nothing better to do with your life. Oh and you're definitely not building anything with that mentality either. Mfers be like "I don't like this guy" let me dedicate my life to making that clear to people who don't even know me. Sounds pretty compulsive to me you hypocrite.
Nikola Tesla did not use math . There is not a single mathematical equation associated with his work and he was starter of this age we live in . Without him we would be in dark ages still . So math is nothing , there is no math in universe , get in to nature and find math , chop up a part of your skin get it under microscope find math , get a telescope find math . Spend 2 to 3 years doing it and you will see like i saw , math is simplification of geometry , and in that simplification errors occur , where mathematicians them selves concluded using math that a complete mathematical system is impossible . Basic thing like Circle math is unable to show or calculate , circle let alone more complex things . Im not saying math is useless , no its a tool , but one should not obsess over it . Geometry is way more important , Geometry is in the pinnacle of scientific world not numbers , creation of new materials with new properties , done with geometry not with math . Large Hadron Collider LHC replaced with Wake filed accelerator that does the same thing but collage students made it with their own money, and it gave much better results . Scientific establishment is nothing different the Political Establishment , interested in money not research , god forbid invention . So give respect where its due , Geometry
@@dedskin1 Geometry was the pillar of the Greek's way of doing math, but mathematics as a whole, not just geometry, is incredibly important and needed. Just look at JPEG 2000 (the jpeg picture format) if you need to see 1 everyday example of why advanced mathematics is beneficial. Every establishment will have politics, but most of the scientific establishment's constituents do not care about politics.
I have a masters degree in mechanical engineering. In university I used to assist in teaching machining. When I got my first and still current job (17 years) after graduating I was unceremoniously booted out of the machine shop as I wasn't formally educated in machining and the technicians felt I was stealing their work. I just worked around it by switching to 3D printers and laser cut parts. To maintain my skills and continue to grow them I gradually bought myself every tool needed to obtain all the fabrication skills I ever wanted in my home garage. No ideal but scratches that itch to build.
I have worked at both levels and hate it when they make that clear division in labor. The engineers need to experience the problems of machining and the machinists need to understand the problems that the engineers are trying to solve. Directly interfacing on a regular occasion is best. Have a tech look at plans before they are finalized. The designer should be present for the first build and visit often to see how the process has evolved.
I had in Germany day one for Engineers is a rat tail file. No equations no theory, a file. The importance of how the tools effect the materials is that important and is etched on to each engineers brain. Sure we can print a part, we can laser cut it. But what does it take to make the same part within thousands of an inch tolerances? Both worlds need to be understood and respected.
Now that I am old and understand literally everything (😂), it is truly a pretty decent sin to demand techs in front of machines exclusively and engineers behind desks exclusively. Also having massive software experience, my utter disdain for modern "programmers" is total garbage. All programmers should have to first write a kernel, then an OS, then a real time OS and a few RT device drivers. Anything less just means you are a literature major in the worst language ever devised by mankind. 😂
@@lefthookouchmcarm4520 Since you have no answer from the OP, mine ended at 200K after 40 years. It will be 300K if I take on any new clients, due to inflation.
As an engineer.... Hats off to you for developing a platform that focuses and prioritises companies that wants to allow engineers to do their job. Incredibly well said that so many get pigeon holed, and we know all too well about the advantages of putting the people qualified to make decisions into the decision making process - such a simple concept so many overlook!! All the best with the new platform, and thanks as always for such incredibly detailed, insightful and entertaining videos, keep up the great work 👌👌
I'm a machinist with an interest in engineering and I love the integration of this production team. I worked at a place where the engineers, machinists, machine tool builders, electricians, welders and so were all in the same building. Was beautiful being able to bother the engineer if something didn't seem quite right to clear things up.
I have done both. As an engineer the input from a tech is invaluable. You need to work together for a good solution. I have seen too many times that a bad design led to a machinist to fix it and the end product was an absolute failure.
My degrees are in Civil Engineering, and I have worked extensively with geologists, biologists, environmental professionals, and other engineers. These multidisciplinary professionals have given me a solid understanding of the issues involved in remediation work. Even the fellows running the bulldozers and backhoes need to be included in the design and operation process.
Crazy to see the J85 engine put up against the F100 engine, the size difference is astonishing. I really hope this company does well, ever since I learned in detail about the Concorde, I've been fascinated with supersonic travel and hypersonic challenges. Also making your own site for engineers to find a job is such a cool idea, great way to use your influence as an educational platform!
Sorry to burst your bubble here buddy, but there’s a reason why the Concorde failed. The problems that made it fail back then still apply now. (especially considering this is hyper sonic)
I wonder if these would be possible on an even a smaller scale like TJ150 or some cheap COTS engine like Jetcat. I'd assume exhaust speed is not much higher on J85. If the exhaust jet speed after the afterburner (which you could easily add to Jetcat) is fast enough to get up to speed for ramjet to start working efficiently is the real question here. Precooling seems pretty straightforward considering you don't care about volume or weight for experimental purposes on the ground.
@@erinrizzo3004 And those reasons are fixable, like the sonic booms for example, we're developing aircraft that don't produce any, the economical crap will take a long time to iron out but it is possible.
A lot of the problems we just can’t fix, like how this thing will be astronomically more expensive and more maintenance intensive than any normal passenger jet. Considering how fastest this thing is going they will have to be long periods of time after landing to let the plane cool down from going hypersonic speeds. Nobody really wants to go on hypersonic planes because they’re too expensive for how small the seats are and people don’t find going that fast to be actually cost saving to them. Fuel prices will just be outrageous no matter how high you fly. Also flying that high like the sr71 means oxygen mask don’t work anymore so everybody has to wear a pressurized suit for safety reasons. Plus just hundreds of economic and engineering problems. @@Ryzawa
Babe wake up real engineering just posted Edit: God damn y'all I just saw that a youtuber that I liked posted and commented to boost it with the algorithm, what's with the hate?
Inconel being called "just steel" at 23:38 is pretty funny. I know it's a minor detail but it is mostly nickel and chromium, iron is a small percentage of the alloy. It's notoriously hard to machine, which is the reason why they are using additive processes to make a lot of these parts (as well as to make impossible geometries).
Its also a B!tch for forging processes. Extremely tough to form. And it takes a beating on our moulds. Just as a reference: we manufacture our moulds smaller by quite a bit just to account for the elastic deformation its subjected to during forging inconel.....
He’s a COO, I haven’t lookup his profile, but I suspect his background is not of metallurgy or material science. People overseeing things that’s not in the scope of their core skills, a common theme in early stage tech startups
What a genius move. Just through sheer views alone you're going to get tons of applicants, and high quality ones. That competition for the best applicants will incentivize people to do what they excel at. It's literally "may the best man win and rightfully get paid the most".
i dont even have the knowledge, expertise, or skills for tihs company (im a software engineer at a big tech company). and im like "hmmmm what if i applied here lol"
The absolute most fun I've had as an engineer was when I was designing, programming, machining and then helping assemble my own parts. Understanding exactly how to design for manufacture, and how to manufacture for assembly felt invaluable. Now I no longer manufacture but knowing how the machinist is likely going make my parts, I can better dimension and tolerance my parts to make it as easy as I can for them.
As a machinist and precision mechanical assembler, I can 100% say that ME's with hands on experience in design, development and testing are almost always a cut above everyone else.
The part with Tonio Martinez is really cool for me. Because as you said, he's the one who's setting up the machine that builds the machine. I'm in logistics with 20 years experience, and the best jobs I've worked on are the ones where I can set up the processes from scratch. Working on integrating interdepartmental communication and processes, dividing up responsibilities and designing the hand-off procedures so that everyone has a set responsibilities that make sense but also where everyone is responsible for catching errors that occur. It's a very satisfying thing to do, and you can see that he both knows his stuff and appreciates the ability to do it his way
I'm a Machinist - still an apprentice, but I have been in the trade for six years. That final bit about everyone working together from each discipline was so inspiring and true; I love that mentality.
I love the way these guys bring high aeronautical theory and practical, efficient manufacturing solutions together - it's refreshing to see this kind of 'can-do'!
By far the best thing about the US Naval Academy's engineering program is the fact that our prototyping shop is in the basement, and every work order has to be viewed by both a faculty advisor, and a machinist before it is approved.
The equation shown for drag at 38:20 is for incompressible flow because it assumes constant density. The statement that drag increases for higher velocities remains true, but after ~Mach 1 this is not the governing equation.
I'm doing a final project work in civil engineering for UG and stumbling on different challenges and overcoming them is challenging and tiring. These guys are making an aeroplane engine within 6 months. Seeing them facing so many big issues but solving them along the way is very inspiring. This video encourages the "engineering spirit" within me.
As someone who's fixed J85 engines, it's astonishing to watch what is a relatively under-powered engine for modern times to something that could theoretically push high-mach speeds. Credit to their work, I wish them the best!
When they're talking about how passenger travel would be aimed at business and first class, and talking about this being the first generation, I felt thoroughly confused as though I slipped into a time line where the Concorde never existed. Trust me, the only reason they're able to go after this is because of the defense contracts and the fact that they can claim to have learned from the concorde's mistakes.
The main issue is the sonic boom, many countries wont allow the boom, engine noise is another issue. If they can get past those there are so many other problem, I would love to see a "new" concord, hearing the original come into Heathrow London every day was just fantastic. You could set you're watch by the noise.
Fuel usage, noise. There's also most likely higher stresses on the machine, so it will need more check ups and maintenance. All of these are HUGE problems for commercial usage. Not to mention we are already clamping on CO2 and airplanes kinda get away since they are necessary thing we can't really do anything about. Overall, what we have seen is that lower fuel usage always wins, even if we don't take into account environment. And I don't think rich people would switch from private jets to supersonic. Private jets allows for maximum flexibility, comfort and exclusivity, also time savings because you can skip whole hassle of airport. Supersonic passenger jet can only give speed, with possibly quite high restrictions due to noise and stuff.
Air Force One is by defininion an Aircraft built for the comfort of the President, That means comfortable temperatures inside and the ability to communicate and navigate. Irregardless of the altitude the aircraft skin temperature is close to T = Tambient (1+ 0.2× M²) Tambient ~ 250 K M = 5 You finish the calculation
Having engineering and production on the same floor was perhaps the key innovation of Kelly Johnson in the early days of the Skunk Works. Credit where credit is due.
We still do that for our development projects. Unfortunately, the DOD, NASA, DARPA ask for very small advances and not finished products. The leaps in technology for hypersonics is very difficult. I was helping our Phantom Works guys with design tools and their hypersonic demonstrator melted a few times. Eventually, they had to working somewhat but it was decades away from something passengers could safely get on. For passengers, you have to solve the sonic boom problem. Hypersonics are a whole other set of problems. As a passenger, you’d hate to have minor problem as you’d turn to toast in a millisecond.
@@jamesdellaneve9005 "We do these things not because they are easy, but because they are hard" JFK. Also "if it were easy everybody would be doing it " Tom Hanks. And words to that effect. My Uncle, whom I only met twice worked on the milling process for the SR 71 skin and he shared his impressions of working for KJ specifically mentioning the camaraderie and horizontal management structure.
@@larrybuzbee7344 Yes. It’s a fun environment. I predict 20 to 30 years. Remember, it’s been 22 years for Spacex to get to where they are today. And they had a leg up as Elon was smart and hired a lot of old timers from legacy aerospace. The self driving cars will take longer as well. I worked with IBM on some neural network computers some 30 years ago. I love what Elon is doing on Spacex and Tesla. He’s a great leader, but hypersonics will take a lot longer than people think as is the AI for self driving cars. BTW, Elon is building his own super computer in Buffalo. He needs to speed up the learning from the AIs.
Seeing the test environments made me realize I'd love to hear more about all the software related to it. Who makes the tools to process all that data and make the dashboards used to monitor the testing systems? Third party, in house? What does the tech stack looks like? Stuff like that. I know this channel is not related to software but if you could feed this lead to some friend who does that and let us know about it that'd be awesome!
I cannot stress enough how important it is for engineers to work with not only manufacturing, but the mechanics who maintain these vehicles. I’m an aviation mechanic working on Boeing 747s, 767s, and 757s. There are components we are required to replace that the engineers clearly never intended to be removed once leaving the factory. For example, the bracket of a thrust reverser blocker door requires that a mechanic squeeze his hand in between the T/R’s exterior translating cowl and the inner T/R composite wall. We have to remove two castle nuts that are cotter pinned with sealant over them while working blindly, i.e. by feel, in order to remove them. The process takes over two hours to accomplish once you know which tools to use. This challenge could have been solved quite easily by creating a small access panel on the translating cowl which would reduce the time for removal and installation from five hours to about 1.5 hours.
Fun fact: during the life of the SR-71, titanium was not as technically recoverable as it might be today. So, the US intelligence community resorted to setting up a series of shell companies to source the raw materials from the Soviet Union
love the conversation with tonio, im an engineering manager and designer at my company and we always are constantly going from engineering to the shop floor speaking with machinists to make the best parts possible. Its the only way to do it
That's not the only way to do it, it's the only way you can do it. You can't exclude every other approach, because you haven't tried every other one. You are right, that engeneering and production shoud work together, just like everybody with common goals. But claiming to know the only working method, is just arrogant.
@@skippityblippity8656 Wtf is so hard to understand? Basically saying :"This is the only way to do it, because we always do it like that and it works for us" is ignorant. He is ruling out all the other ways he has never tried. I can't dumb it down any more for you , understand it or stfu! And don't be so rude, please!
I love hearing about cool new things going on in the tech, transportation and EV space. It's undoubtedly the wave of not only the future but increasingly the present. I'm constantly posting all the latest in EV and tech news on my channel too.
Love your curiosity, Brian! You're always the first person in the room to ask great questions no matter what! That's why I love Real Engineering videos; practically pulling the questions out of my own head well over half the time. It makes for the most informative videos out there! Keep up the awesome work.
The next AF1 is going to be designed from a mass produced aircraft so parts will be readily available. Creating a bespoke aircraft like the one in the thumbnail is utterly infeasible.
Even in the Soviet Union, such hypersonic civil aircraft were created. 40 years ago. The USSR was really developed in this area of technology. As a result, when the USSR collapsed, these aircraft stopped being produced, why? Because flying on such an airplane is 5 times faster, but the price is 10 or 15 times higher. Are you ready to fly 5 times faster, while paying $1000 instead of $100? (this is due to fuel consumption and greater wear and tear on aircraft at higher speeds; it’s hardly possible to think of any miracle that it will become cheaper)
@@redapproves1330this is a rare company trying to not just rely on that. they have more in common with rocket lab tbh in their approach, and that itself gives me higher faith they'll actually pull it off. rocket lab's ceo/founder was literally just a materials scientist and engineer. he had connections and some starting money, but you can get much of both just from working as an engineer for long enough.
5:00 - perfect example of how America/Americans talk poorly of weaker countries, but also don't want countries to be on their level. They therefore view counties either as leaches or as enemies.
I think it would be cool to have a supersonic air force on one plane, however, I think the increased risks of hypersonic travel, especially in the near future, will mean that it'll be decades before there is one if one gets produced. Also Air Force One has to have an incredible amount of technology onboard for the President. That comes with so many issues, so I don't think it'll happen any time soon.
more importantly, the air force one flies with its motorcade. and while the president could fly hypersonic, lead time is still required bc hypersonic cargo flying is much harder bc of the larger volume needed
the president doesn't have to go anywhere in that short of a time period. It doesn't make any sense. IF anything, worst case the President needs airborne ENDURANCE. -Former USAF Evaluator Pilot
As a systems and mechanical engineering major in my senior year, hearing the last part of that conversation you were having about how engineers feel bottlenecked sometimes at a big company and have constraints is so true as an engineer, I would love to be more involved in the manufacturing process
at 34:20 the argument that economies will grow because of supersonic travel is false. In the examples which he used... Rome building roads, going to sail power, trains, etc, the purpose was to get information and goods from one place to another in a shorter amount of time. In the modern age, information travels through the internet anywhere in the world nearly instantaneously. Goods will always travel by sea or rail or truck due to the weight of larger consumer goods. The only real application for RAM and SCRAM jet tech is military, and perhaps a very niche civilian use such as rushing organ donations across the globe to save a life. Maybe if there was a fuel savings, but the service life of the plane will be shorter he alluded to
A faster jet is not at all comparable to the first great roads connecting countries and empires. We already have instant communication with the entire globe. It won't do anything for the GDP, and the fact that the dude from Hermeus was able to claim a 4 trillion $ increase with a straight face does not bode well. There is a use case in the military, but for consumer use it is an incredibly expensive toy for wealthy people... and similar to shoveling coal into a volcano when it comes to our sustainable aviation goals. These videos need to spend more time on drawbacks and real metrics, not all company-fed propaganda.
Also, it is not China which developed high speed rail in the 20th century but Japan, China only started in the 21st. And the economic impact from that was from the fact that it is a mass transportation system, capable of moving millions of passengers, which will never be the case (in the short and medium term) for hypersonic flight.
They hit on the real problem at Boeing and L-M where the eggheads are separated from the Blue Collars and the Bean counters above them are running the show by their books. The Engineers need to be guided by the hands on guys with the intuitive knowledge. And the bean counters have to stop thinking they run the show, when they only finsnce it.
This just seems like vaporware to me too man@@K-Effect They don’t fix any of the main problems about going hypersonic, they just provide a neat looking engine which if you get a couple dozen engineers and couple million dollars anybody can make something like that.
I thought this about a new Air Force One, ten minutes in and no mention of it. The UK had the Concord and we saw how that ended and why does the President need to travel at super sonic speed it's just not worth the cost.
@@jacked-666 another problem i see with air force one being so fast, how can the jets that fly with it keep up with the president flying mach 5, surely they're not going to let the presidential aircraft fly alone
I’ve been in the industry for a little over 3 decades myself and while I’ve never personally worked with Tonio, from everything I’ve been told, he’s a wonderful natural leader and a generous lover.
The whole argument against hypersonic planes is the ear-shattering noise they generate. It is also incredibly cost inefficient when looking at the maintenance, repair, and fuel requirements. Airforce one has to constantly take-off and land from large cities, something a ridiculous Mach 5 aircraft is not suited for. I could see a lot of really cool tech come from this, but I'm more skeptical about airline companies pursuing interest in this, rather than their ability to achieve a mach 5 aircraft.
Aerogel, titanium, carbon fiber, etc. There are current ways to deal with the heating, better than the SR-71. Like fiber glass that was infused with aerogel took a flamethrower to it, and the guy on the other side, with his hand on the material, didn't feel a thing.
Holy cow! I was already excited with the primary content of this one, but "Propeller!" I'm not an engineer, just an artist who loves aerospace! (SA43 Hammerhead is the GOAT) I'm beyond excited about your career forum for engineering! This is an Afterburner for Engineering! Fantastic!!!
@@melchiorpoirier-coutansais5734 It's either outrun or outmaneuver the threat. It won't be both when there are fragile life forms inside the hypersonic plane.
You would because you can not outrun any threat. Scenario 1: missile flying against the target so you are not going to outrun. Scenario 2: during take off + landing phase you are not going to outrun, since regular travel speed. Nice point you mentioned. But not a universal solition.
@@melchiorpoirier-coutansais5734 That doesn't even make sense... there will be - if not already - hypersonic missles capable of taking out this non existent Airforce One. The threat will be there well before any mach 5 passenger jet is developed - if ever.
34:33 him mentioning highspeed rail over normal rail is an extremely massive red flag. These guys aren't trying to make a plane, they're trying to get bought out by big aerospace
Brilliant video. I also enjoyed the American being unsure of the Irishman’s laconic reaction to holding the inconel lump. I don’t think he understood you were savouring it. “it’s heavy” “Uh, yeah it’s heavy” [with pleasure] “I’m such a nerd about these things” “…phew”
The issue with getting a job in most the companies stated in the video like Relativity Space is that being an US citizen is a must and that unfortunately is a huge hit for us enthusiasts who'd dream to work in such companies who are not US citizens. I'd learnt this bitter truth last year when I visited stalls hosted by various aerospace companies at the Spaceport America Cup, most not able to provide internships to non-US citizens. 😢
@@Michallote They have division for civilian aircraft’s too. There’s many other companies that make normal commercial products and yet can’t allow non US citizens.
Some companies have inspiring mission statements: make life multi-planetary... accelerate sustainable energy. Hermeus' seems to be: keep America on top. Best to rebrand as Icarus.
14:30 Couldnt you just use the nozzle cone as a sort of a cork? When its in compression engine mode, the cork/cap is locked in place but when it goes into ramjet mode the caps locks are released so the air pressure forces the cap onto the compression chamber forcing the air to go around it? It might cause a timing problem, where the compression intake air could be shut off before the ram air could ignite, causing what i think is called a flameout(?)
I really feel for this engineer explaining things to you, as he is clearly passionate, but unable to articulate the stuff without being extremely technical and very hard to understand. :D
Becoming much more inter-disciplinary, collaborative in engineering practices is one way to ensure your ability to consider wider range of problems, wider reaching impacts.....also one way to transcend your job description on paper, become irreplaceable or much less replaceable by AI. I love this.
@29:01 to 30:08 "The way that they think about life is time under wing hours of engine operation, hours of flight. That is a horrible metric for us because you're not in the air that long. It's really about cycles. It's thermo cycles that are going to drive the life of these vehicles... etc." As a retired member of USAF Space Command, It's horrifying to me to hear a young man whose schooling is based on theory but does not have much experience in the field of metallurgics, aircraft stress fractures, conditioning, and conservation.
The most exciting thing about this IMO is that they were able to do this as a startup with a relatively small budget and team. Most of the giant Aerospace companies are known for their excessive delays and cost overruns. It is very clear that something needs to change, and find it encouraging that these new companies can get these prototypes made quicker and cheaper. The only question is, can they deliver and actually manufacture their products...
I saw a spiral hose going into Chimera at 17:51. It looked very much like the hoses used on an Air Start unit used to provide hot, high-pressure air to aid in starting a jet engine on an aircraft with an inoperative APU. Is this what it was? (it would have been almost as loud as the engine itself)
41:16 “Even tolerancing, you learn about tolerancing, but you never fully understand it until you see two parts not going together properly.” Hermeus VP Production (and engineer badass) replies: “Precisely”. What a great way to respond after discussing tolerance. I’m looking forward to seeing what and where Hermeus goes from here. No doubt, wherever they go, it’s going to be fast.
Tony is correct in his assessment…. Having the ability to walk on the floor and talk to the technicians constructing the vehicle was one of the great advantages of working at the main Sikorsky location in Connecticut!
That young engineer has done very well in presenting the project, I bet he was bricking it about not releasing any of the real secrets, class video again, real engineering is a fitting name for sure!
IMHO AF1 is a bit of a relic of the mid-20th century - although they have high-tech toys all over it. I'm pretty sure that somewhere in some top-secret hangar there's a stealth version of Air Force One, of course not as large. I'm just speculating but it makes sense. If/when the SHTF government and high-level military chain of command will need protection/speed/stealth. Air Force One has been a great airframe during peacetime but idk even with AF backup if it can do the job it was meant to do. Protect.
Maybe I'm misunderstanding the complexities of the transition phase from normal jet engine to ram jet (in fact its near guaranteed). But for a plane with multiple engines, especially all near the center of the fuselage, why not transition between phases in sequence? Sure, you probably cannot maintain acceleration with only 3 of 4 engines thrusting in jet mode, but it would likely be enough to extend your time of transition, and maybe maintain current speed, as well as reduce the severity of the acceleration change. Then once one ram jet is up and running, move to the next engine for transition. All the while you maintain a steadier state overall while giving more time to make those transitions in the sweet spot of speed between the two.
“Natl security concerns” are the way to developing a passenger plane. I guess getting to a Mar a Lago bathroom really quickly could be handy for the DOD.
In case you missed it at the very end of the video. We just announced our latest project startpropeller.com/. Propeller is an engineering recruitment platform that we created to share the most exciting and innovative jobs in engineering. Take a look at the jobs with our launch partners Hermeus, Relativity Space and Helion. If you don't see anything relevant be sure to sign up to our newsletter to get updated on engineering news and opportunities.
ok
I'm lazy so I hope you'll one day accept resumes and let the companies come to us instead. I know Hermeus at least uses the EDM that I work on, but I'd like to let the others know I exist too.
*or should I say I'm just satisfied with where I am, and thus lazy about a job search, but if I get an interesting offer then maybe
@@chunqk that is on the product road map
22:31 That diamond plume seems pretty familiar... ngl :D
Congratulations. What a cool project. Your years of work on RUclips have made you THE GUY to do this. Massive respect. I hope Propeller is wildly successful, makes you wealthy, and helps tons of young engineers get stellar jobs. You're a scholar and a gentleman.
I only dream of being a hardware engineer, but I see there are already a few software jobs on there that I just might qualify for. VERY COOL!
As a young aerospace engineer, the discussion about manufacturing at the end of the video was what sold me on the potential of this company. Being able to get up from your desk and talk with a machinist who will make your part or a technician who will handle it is what makes the difference between a project that goes from a blank sheet of paper to flight in 5 years and one that gets cancelled after 15 years of wasting money. The business case might be dubious, but with a great mindset and team like that building the aircraft will be no issue.
Completely agree
They probably will be able to make planes and then go bankrupt because no one wants hypersonic or supersonic airliners
Completely agree. I work in satellite production and design engineers were like bigfoot in our building. We actually relocated our testing labs to the same building to force them to walk through production
@@darkelement-b8k Design Engineer in aerospace and my company doesn't do it this way and its aggravating. I miss the smell of machining coolant
No kidding, probably the best mindset to have when your working on something that’s never been done before
That's the kind of company I want to work at. Talented, passionate, and driven individuals working towards a beautiful goal. Love the Propeller concept. We definitely need more focus like this.
Wow ,another above and beyond American gotta get there now project.imagine,if conflict regarding Homosapien?,ihink it's spelled,notice first concern was our ambitious neighbors,China ,seeing the world as a small homes for the above,If,we never had wars of any type,Ant colonies, with a democracy ideology, instead of a monarchy,we,inhabitants of earth ,more likely we could have achieved colonization on other planets,especially our,milkyway system , traveling safely and securely, take a cruise to see the rings around Sature,endless possibilities,Time is everything, because death is a constant,knowing that fighting waste precious time,so potential and possibilities, will reveal ourselve,that there's nothing that can't be accomplished 😊
@@sxstationYou need to add a a period. 😂 he is trying to express himself. Just like art class, some have more talent.
@@sxstationgive your tarded ego a rest. He was trying to say something positive. Now be a good bot and fk off.
@@sxstation please try harder.
@@Cvhutch what is the core point of what youre aiming to express here
Getting some real "SR1-Normandy" vibes from this aircraft.
And heavy on the XB 70 Valkyrie layout inspiration for the air frame right down to the sonic shockwave riding wing tips
twin rudders fins etc ...
My prized posession is my N7 hat and t-shirt 🤗
Was going to say the same thing!!
@@spacewombat4569
I was going off the Airforce 1 design graphic... Sure enough XB70 pops up in the last furlong of the presentation.🧙♂️😎🇬🇧
Coser to UN One from The Expance
Moved over to work at Relativity Space 6 months ago after 3 years at Tesla, and I’m genuinely so glad to see that your platform here on RUclips is being used to broadcast such a great company to a larger audience.
It’s a wonderful place to work where the leadership really care about you and share the engineering drive that so many of us young engineers have.
Come build the future with us!
Ah, great. Let me ask you the things never mentioned that seem like major issues:
At Mach 5 you get a plasma build-up that blocks radiation: Can this get GPS signals?
The SR-71 was titanium to retain rigidity at high temps: What material will they use!??
Inconel is heavy (steel+nickel, as mentioned) what's the max range (fuel efficiency)?
No one's trying to save 40 min off the hour flight from LA to LV. How far can this fly?
Each doubling of speed SQUARES the resistance. SR-71 mid-air refuel at 2,500 miles.
The "passenger" of the SR-71 weight was FUEL. As in, HALF of the vehicle by weight.
There are so many fundamental questions of PHYSICS before engineering should've been entertained. Yes, you'll always make useful discoveries when doing fundamental science; but is the goal here to make non-stick frying pans or memory foam mattresses?? Bc they should've calculated off the absolute thresholds of physics: The fuel required to go from London to Tokyo, the cost of the fuel to see the minimum cost per person to see if a market even EXISTS of people who'd spend $10,000 extra to save even 80% off the time of their flight. That's still ignoring the market size ... bc at $10,000 per flight you're competing with people who may own their own aircrafts.
Likewise, sizing the vehicle off the number of passengers it need to reliably FILL to compare against the market. Are there really 500 people a day who'd spend over $10,000 a flight (which is likely on the very low end) to save 10 of the 12 hours? The LONGEST flight is 18 hours 40 minutes: Is it worth $10,000 to 500 people a day to do that flight in 3 hours and 30 min? And again, $10,000 sounds so ridiculously on the low-end its hard to bring myself to say it. And that's assuming it could travel that far. I highly doubt it'd have the fuel available to do so.
What's the minimum distance it'd need to be able to travel to offer meaningful utility (not novelty)? What percent of the vehicle would have to be fuel? Because a ROCKET is 90% (and can be higher). How much room is left for passengers ... and how enormous would it have to be to hold 100 passengers and the luggage of people spending $10,000 to $20,000 for a flight?
Did someone calculate the energy available from fuels vs the CD and resistance at the speeds targeted within the existing infrastructure to size the vehicle for a particular range? Or are they going to create yet another entire (fuel) infrastructure for just their vehicle (as was required with JP-7)? Are they going to need mid-air refueling like the SR-71 did..?? Vehicles are LOST doing that. Not only would it be another entire layer of risks ... but are they going to have FLEETS of aircraft to mid-air refuel theirs?? Talk about an additional layer of ridiculous. Again, further competing with people who OWN their own aircraft as prices spike.
With all the absolutely brilliant people there ... how could someone not have considered these challenges, calculated them & brought them to the attn of the proprietors, but more importantly, the investors to whom they have a fiduciary duty to be candid as to whether this is just research or if it has any chance of reaching market.
Beautiful ie that part about young etc that's what we need trust me hence this video loop they keep playing for us needs to cease trust me hence we need NEW YOUNG BRILLIANT MINDS TO STEP UP with also some guidance from the main elders who share your drive and all etc seriously you Guy's get it done man make change make new make lookie here at this etc 👍
@@trumanhw
I don't think any of these young engineers learnt from RUclips hence I doubt none can answer your storytime questions pal
What are the hiring requirements?
@trumanhw This was all a copy and paste hackjob to appear smart. Glad to see you're not fooling anyone.
I'm not an engineer, and a lot of these videos take me hours to get through because i'm always going down rabbit holes on other tabs googling things talked about to get a better understanding, but this is by far my favourite channel on youtube. Every time you release a video I get excited that my dinner is about to have some great entertainment to go with it. Thanks for everything you do!
I'm (nearly) an engineer and I respect you for going in the deep of it, it takes a lot of effort for an "outsider" and it's fscinating to see such devotion
I am an engineer and found a lot of this pedantic, unrealistic and designed primarily to encourage investment... "Make work"!
@MrMichaelFire , I've worked as an engineer in R&D for about 15 years. Your statement is ridiculous. We have a saying.
"Anything worth doing is worth doing poorly"
Quickly moving from a concept to prototype to learn and prove things out is extremely effective. It's basically why SpaceX can do 100x what NASA can do with the same funds.
tldr; they copied SR-71 tech and combined it with Japanese tech
You're an engineer at heart then, engineering is all about breaking jargon down into small understandable bits that you can digest, and over time build and literate on your knowledge.
My reason for No success in life: I have no basement.
Or a garage. You Have to have one or another.
You have to have a basement for your bullshit start up story to sell.
@@Steven_Edwards I have neither, nowhere to tinker 😞
I've managed to prototype & PoC on a bedroom.
You do have to be very good with resource management though, since you're effectively banned from using traditional tooling&manufacturing equipments in this environment.
It does make the challenge more harder, probably borderline impossible if you want to test a jet engine at the scale these guys are doing, but most likely viable on smaller scales.
I have come up with several billion dollar patent ideas sitting on the toilet in the morning. Does that count?
Hermeus picked the right guy to represent their company to the internet... incredibly knowledgeable and well-spoken.
it was a good choice. seeing as the founder that is in the interview is quite fond of the word "um" the biggest enemy of public speaking
The difference between a marketing wonk vs an actual engineer.
He's very passionate, understands exactly what they are building, and well spoken.
The US Government doesn't give out $100 Million dollar military contracts for nothing. Probably a company to invest in going forward.
@@LIONGODI’m interested in hearing how you would sound whilst orating! Perhaps he could do better, but I’m sure he’s happy with his above average intellect and wealth! 😂😂😂
Looks like the Normandy SR2.
In Skunk Works (the company that designed the U-2, SR-71, X-15, F-22, F-35, etc etc ad infinitum) engineers regularly went to work in overalls, because desks don't invent anything. It sounds like Hermeus is taking the same, time-proven tactic. Awesome to see.
I don't think you need to explain who skunkworks are on this page 😅
As long as they have recovered extraterrestrial craft
Not a company?
@@moneybilla "lmao" oh, I'm so embarrassed I chose the wrong word! Whatever shall I do?!? Thank you, oh wise one, for laughing as you school my incorrect word choice! Almost as poor a choice as your "use to be", as opposed to the correct "used to be".
Note: The X-15 was designed, built, and flown by North American Aircraft. My father had the privilege of working on the the crafts sheet metal. The drooping wing tips on the Hermeus is in fact the second craft to make use of a North American Aircraft feature on the XB-70, a prototype to replace the B-52 , and using compression lift via those adjustable wing tips. As an eight year old I had the privilege to see it on roll out in Palmdale at the defense plant-another project my father worked on. It would amuse my father had he lived to see that feature one day on another record breaking project.
I love the idea that Brian had a neuron activation moment the moment he saw a working Turboramjet. That’s some crazy technological advancement for a company like that.
Wait till you see me hold a piece of metal half way through the video😂
Lockheed would have had a supersonic airliner with turboramjets if it wasn't for politics. Much of the technology for that jet was coming from the SR-71
@@WolfeSaberand how much would it have cost ?
For most of its time the concord wast profitable
@@nikolaideianov5092 Well, its larger size and turboramjet engines, ones that could also make use of a high bypass duct for air, likely could have made it a bit more profitable. Maybe even as a supersonic cargo plane.
@@WolfeSaberYeah like nikolai said: You can't cheat physics and if you double the speed you quadruple the air resistance so you have to burn 4x the fuel to get there and it just wont be cost effective for regular passengers.
The romance of supersonic flight easily captures the heart. But fuel costs per seat is the metric you will have to solve in order to capture the minds of airlines.
Nothing that I saw in this video impressed me, the ramjet technology and limitations of high temperature metallurgy go back to the 1950's (SR-71). Any piece of metal that reveals visually discernable voids is useless for any high stress purpose. So much of what this engineer talks about is speculative and unrealistic.. the greatest challenge to Mach 5 and faster flight in an atmosphere is extreme heating from air friction.. which makes metals brittle and fail. Elon Musk's Starship appears to be a far more viable solution for timely earth to earth transport.
@@MrMichaelFire In the first step they build a cheap testing platform to advance science. I think they are in early stages of development and will buy the most talented people with american military funding
Yeah, there are numerous good reasons why the Concorde model never really worked and why it wasn't tried again.
With only 4 seats, each ticket would have to cost $30k just to cover fuel & repairs. Or more.
@@MrMichaelFirecommenting so that I can come back when this succeeds in 10 years and you have to eat your words. 😂
I love how Brian could clearly stare at that brick of inconel for another 10 mins just because he was nerding out over it
Guy had to take it away from him or else lol
Or he's obsessive compulsive and could never actually build anything.
@@MrMichaelFire You seem to be obsessed because you're wasting your time being hateful like you have nothing better to do with your life. Oh and you're definitely not building anything with that mentality either.
Mfers be like "I don't like this guy" let me dedicate my life to making that clear to people who don't even know me. Sounds pretty compulsive to me you hypocrite.
lol
@@MrMichaelFire how many comments did you leave on this video
Just want to say I've loved your content for a long time and I wish nothing but the best for the team behind this channel.
"engineers are mathematically inclined artists" love that sentence!
Indeed we are, I couldn't agree any more or less.
Nikola Tesla did not use math . There is not a single mathematical equation associated with his work and he was starter of this age we live in . Without him we would be in dark ages still . So math is nothing , there is no math in universe , get in to nature and find math , chop up a part of your skin get it under microscope find math , get a telescope find math . Spend 2 to 3 years doing it and you will see like i saw , math is simplification of geometry , and in that simplification errors occur , where mathematicians them selves concluded using math that a complete mathematical system is impossible . Basic thing like Circle math is unable to show or calculate , circle let alone more complex things . Im not saying math is useless , no its a tool , but one should not obsess over it . Geometry is way more important , Geometry is in the pinnacle of scientific world not numbers , creation of new materials with new properties , done with geometry not with math . Large Hadron Collider LHC replaced with Wake filed accelerator that does the same thing but collage students made it with their own money, and it gave much better results . Scientific establishment is nothing different the Political Establishment , interested in money not research , god forbid invention .
So give respect where its due , Geometry
@@dedskin1 Geometry was the pillar of the Greek's way of doing math, but mathematics as a whole, not just geometry, is incredibly important and needed. Just look at JPEG 2000 (the jpeg picture format) if you need to see 1 everyday example of why advanced mathematics is beneficial. Every establishment will have politics, but most of the scientific establishment's constituents do not care about politics.
@no1hereisahuman thanks for flagging. It's fixed.
@@dedskin1Me when geometry is math
I have a masters degree in mechanical engineering. In university I used to assist in teaching machining. When I got my first and still current job (17 years) after graduating I was unceremoniously booted out of the machine shop as I wasn't formally educated in machining and the technicians felt I was stealing their work. I just worked around it by switching to 3D printers and laser cut parts.
To maintain my skills and continue to grow them I gradually bought myself every tool needed to obtain all the fabrication skills I ever wanted in my home garage. No ideal but scratches that itch to build.
I have worked at both levels and hate it when they make that clear division in labor. The engineers need to experience the problems of machining and the machinists need to understand the problems that the engineers are trying to solve. Directly interfacing on a regular occasion is best. Have a tech look at plans before they are finalized. The designer should be present for the first build and visit often to see how the process has evolved.
I had in Germany day one for Engineers is a rat tail file. No equations no theory, a file. The importance of how the tools effect the materials is that important and is etched on to each engineers brain. Sure we can print a part, we can laser cut it. But what does it take to make the same part within thousands of an inch tolerances? Both worlds need to be understood and respected.
Now that I am old and understand literally everything (😂), it is truly a pretty decent sin to demand techs in front of machines exclusively and engineers behind desks exclusively. Also having massive software experience, my utter disdain for modern "programmers" is total garbage. All programmers should have to first write a kernel, then an OS, then a real time OS and a few RT device drivers. Anything less just means you are a literature major in the worst language ever devised by mankind. 😂
@@lefthookouchmcarm4520 Since you have no answer from the OP, mine ended at 200K after 40 years. It will be 300K if I take on any new clients, due to inflation.
so funny that they matched their outfit 😂
I thought I was the only one. 😂😂😂
They shop at the same "Nerds R Us" store. LOL
@@RespectMyAuthoritaah is that supposed to be a joke, the fits look good
@@RespectMyAuthoritaah Engineers are reliable (predictable).
Bo😂😂
As an engineer.... Hats off to you for developing a platform that focuses and prioritises companies that wants to allow engineers to do their job. Incredibly well said that so many get pigeon holed, and we know all too well about the advantages of putting the people qualified to make decisions into the decision making process - such a simple concept so many overlook!! All the best with the new platform, and thanks as always for such incredibly detailed, insightful and entertaining videos, keep up the great work 👌👌
Can take a moment to appreciate the breathtaking 3d animations in this video. The turbojet at 11:50 made me audibly gasp.
Noticed the owner took it back quickly its a piece of copy writed tech I guess.
I'm a machinist with an interest in engineering and I love the integration of this production team. I worked at a place where the engineers, machinists, machine tool builders, electricians, welders and so were all in the same building. Was beautiful being able to bother the engineer if something didn't seem quite right to clear things up.
From your mouth to the CEO's ears.
From your mouth to the CEO's ears.
Obviously this has been the basis for SpaceX crushing the competition...
I have done both. As an engineer the input from a tech is invaluable. You need to work together for a good solution. I have seen too many times that a bad design led to a machinist to fix it and the end product was an absolute failure.
My degrees are in Civil Engineering, and I have worked extensively with geologists, biologists, environmental professionals, and other engineers. These multidisciplinary professionals have given me a solid understanding of the issues involved in remediation work. Even the fellows running the bulldozers and backhoes need to be included in the design and operation process.
Crazy to see the J85 engine put up against the F100 engine, the size difference is astonishing.
I really hope this company does well, ever since I learned in detail about the Concorde, I've been fascinated with supersonic travel and hypersonic challenges.
Also making your own site for engineers to find a job is such a cool idea, great way to use your influence as an educational platform!
Sorry to burst your bubble here buddy, but there’s a reason why the Concorde failed. The problems that made it fail back then still apply now. (especially considering this is hyper sonic)
I wonder if these would be possible on an even a smaller scale like TJ150 or some cheap COTS engine like Jetcat. I'd assume exhaust speed is not much higher on J85. If the exhaust jet speed after the afterburner (which you could easily add to Jetcat) is fast enough to get up to speed for ramjet to start working efficiently is the real question here. Precooling seems pretty straightforward considering you don't care about volume or weight for experimental purposes on the ground.
@@erinrizzo3004 And those reasons are fixable, like the sonic booms for example, we're developing aircraft that don't produce any, the economical crap will take a long time to iron out but it is possible.
A lot of the problems we just can’t fix, like how this thing will be astronomically more expensive and more maintenance intensive than any normal passenger jet. Considering how fastest this thing is going they will have to be long periods of time after landing to let the plane cool down from going hypersonic speeds. Nobody really wants to go on hypersonic planes because they’re too expensive for how small the seats are and people don’t find going that fast to be actually cost saving to them. Fuel prices will just be outrageous no matter how high you fly. Also flying that high like the sr71 means oxygen mask don’t work anymore so everybody has to wear a pressurized suit for safety reasons. Plus just hundreds of economic and engineering problems. @@Ryzawa
@@Ryzawa
when did he start to show his face omfg not what i expected, dude looks chill asf
Damn, I didn't know you were chill like that 🤙🏻😛
Babe wake up real engineering just posted
Edit: God damn y'all I just saw that a youtuber that I liked posted and commented to boost it with the algorithm, what's with the hate?
Generic
@@conorf8091says the dude with the generic username
Aww you call your mom babe cute
I was literally about to comment this when I saw real engineering dropped 😂
sigh it's 3am. guess I wasn't gonna be sleeping anyway
Inconel being called "just steel" at 23:38 is pretty funny. I know it's a minor detail but it is mostly nickel and chromium, iron is a small percentage of the alloy. It's notoriously hard to machine, which is the reason why they are using additive processes to make a lot of these parts (as well as to make impossible geometries).
I caught that as well... I had already lost my respect for him as an engineer before that... "Just Steel" laughter ensues!
In general that was a very awkward couple of seconds of the engineer staring back and forth between the interviewer and the metal.
Don't most types of Inconel have the carbon content to count as low-alloy steel? or is the low iron content that makes it not a type of steel?
Its also a B!tch for forging processes. Extremely tough to form. And it takes a beating on our moulds. Just as a reference: we manufacture our moulds smaller by quite a bit just to account for the elastic deformation its subjected to during forging inconel.....
He’s a COO, I haven’t lookup his profile, but I suspect his background is not of metallurgy or material science. People overseeing things that’s not in the scope of their core skills, a common theme in early stage tech startups
What a genius move. Just through sheer views alone you're going to get tons of applicants, and high quality ones. That competition for the best applicants will incentivize people to do what they excel at.
It's literally "may the best man win and rightfully get paid the most".
i dont even have the knowledge, expertise, or skills for tihs company (im a software engineer at a big tech company). and im like "hmmmm what if i applied here lol"
Builds up hype too in the tech and aeronautical community and that will likely rake in more investors.
Shame the idea is vaporware and the company is just selling a scam.
you can screenshot this because I'm calling it now. it's another scam masked in "high tech" jargons
@@redapproves1330 i would screen shot but id loose the screen shot
The absolute most fun I've had as an engineer was when I was designing, programming, machining and then helping assemble my own parts. Understanding exactly how to design for manufacture, and how to manufacture for assembly felt invaluable. Now I no longer manufacture but knowing how the machinist is likely going make my parts, I can better dimension and tolerance my parts to make it as easy as I can for them.
As a machinist and precision mechanical assembler, I can 100% say that ME's with hands on experience in design, development and testing are almost always a cut above everyone else.
The part with Tonio Martinez is really cool for me. Because as you said, he's the one who's setting up the machine that builds the machine. I'm in logistics with 20 years experience, and the best jobs I've worked on are the ones where I can set up the processes from scratch. Working on integrating interdepartmental communication and processes, dividing up responsibilities and designing the hand-off procedures so that everyone has a set responsibilities that make sense but also where everyone is responsible for catching errors that occur. It's a very satisfying thing to do, and you can see that he both knows his stuff and appreciates the ability to do it his way
4:12 Translation: The military industrial complex has the most money
Always has been
Well duh. Military is one of the space where you can just write blank checks, due to importance, unlike consumer/automotive/industrial.
And even if they need a budget Air Force One, I hear you can get a pre-owned Boeing 737 Max really cheap.
Super cheap.
@@SnaketheJake87I'm thinking of getting one myself. It doesn't matter that I can't fly a plane because they crash anyway.
What an honest dude accepting his shortcomings and methods of testing.
First, show that it's save as a commercial airliner.
after that, 10 years, Brandon Trump II ?
And yet “real engineering” wasn’t real in their marketing of this.
@@stupidburp What do you mean?
I'm a Machinist - still an apprentice, but I have been in the trade for six years. That final bit about everyone working together from each discipline was so inspiring and true; I love that mentality.
I wish All companies would do that.
I love the way these guys bring high aeronautical theory and practical, efficient manufacturing solutions together - it's refreshing to see this kind of 'can-do'!
By far the best thing about the US Naval Academy's engineering program is the fact that our prototyping shop is in the basement, and every work order has to be viewed by both a faculty advisor, and a machinist before it is approved.
The equation shown for drag at 38:20 is for incompressible flow because it assumes constant density. The statement that drag increases for higher velocities remains true, but after ~Mach 1 this is not the governing equation.
Multi million dollar company can’t do basic math for their vaporware.
@@erinrizzo3004 Real Engineering put that there, not the company doing the engineering at this company.
Real Engineering also was super stoked on Nikola right before they went down
@@erinrizzo3004 Are you under the impression that Hermeus made this RUclips video?
0:50 Did you coordinate outfits?
I'm doing a final project work in civil engineering for UG and stumbling on different challenges and overcoming them is challenging and tiring. These guys are making an aeroplane engine within 6 months. Seeing them facing so many big issues but solving them along the way is very inspiring. This video encourages the "engineering spirit" within me.
"Engineers are just mathematically inclined artists" beautifully said
Call it visual perception, NO degree required.
As someone who's fixed J85 engines, it's astonishing to watch what is a relatively under-powered engine for modern times to something that could theoretically push high-mach speeds. Credit to their work, I wish them the best!
When they're talking about how passenger travel would be aimed at business and first class, and talking about this being the first generation, I felt thoroughly confused as though I slipped into a time line where the Concorde never existed. Trust me, the only reason they're able to go after this is because of the defense contracts and the fact that they can claim to have learned from the concorde's mistakes.
The main issue is the sonic boom, many countries wont allow the boom, engine noise is another issue.
If they can get past those there are so many other problem, I would love to see a "new" concord, hearing the original come into Heathrow London every day was just fantastic. You could set you're watch by the noise.
There are others working on that, in particular the Lockheed X-59.
Even if they find a way to quiet down the sonic booms, there’s still a million other problems why this won’t work@@michaelmicek .
There’s a lot more main issues with this thing then just the sonic booms.
As soon as funding dries up this place will sell everything and be history
Fuel usage, noise. There's also most likely higher stresses on the machine, so it will need more check ups and maintenance. All of these are HUGE problems for commercial usage. Not to mention we are already clamping on CO2 and airplanes kinda get away since they are necessary thing we can't really do anything about. Overall, what we have seen is that lower fuel usage always wins, even if we don't take into account environment.
And I don't think rich people would switch from private jets to supersonic. Private jets allows for maximum flexibility, comfort and exclusivity, also time savings because you can skip whole hassle of airport. Supersonic passenger jet can only give speed, with possibly quite high restrictions due to noise and stuff.
Love the idea of startpropeller! Such a great initiative that makes perfect sense in this context!
Air Force One is by defininion an Aircraft built for the comfort of the President, That means comfortable temperatures inside and the ability to communicate and navigate.
Irregardless of the altitude the aircraft skin temperature is close to
T = Tambient (1+ 0.2× M²)
Tambient ~ 250 K
M = 5
You finish the calculation
The calculation yields a skin temperature approaching the boiling point of salt. Not melting, boiling.
1500K is no joke.
Thanks!
I love that hermeus uses some of the specs of the XB-70 such as the folding wing...
Valkyrie was a beautiful airplane that just didn’t have the engine tech or politics on its side.
Having engineering and production on the same floor was perhaps the key innovation of Kelly Johnson in the early days of the Skunk Works. Credit where credit is due.
We still do that for our development projects. Unfortunately, the DOD, NASA, DARPA ask for very small advances and not finished products. The leaps in technology for hypersonics is very difficult. I was helping our Phantom Works guys with design tools and their hypersonic demonstrator melted a few times. Eventually, they had to working somewhat but it was decades away from something passengers could safely get on. For passengers, you have to solve the sonic boom problem. Hypersonics are a whole other set of problems. As a passenger, you’d hate to have minor problem as you’d turn to toast in a millisecond.
@@jamesdellaneve9005 "We do these things not because they are easy, but because they are hard" JFK. Also "if it were easy everybody would be doing it " Tom Hanks. And words to that effect.
My Uncle, whom I only met twice worked on the milling process for the SR 71 skin and he shared his impressions of working for KJ specifically mentioning the camaraderie and horizontal management structure.
@@larrybuzbee7344 Yes. It’s a fun environment. I predict 20 to 30 years. Remember, it’s been 22 years for Spacex to get to where they are today. And they had a leg up as Elon was smart and hired a lot of old timers from legacy aerospace. The self driving cars will take longer as well. I worked with IBM on some neural network computers some 30 years ago. I love what Elon is doing on Spacex and Tesla. He’s a great leader, but hypersonics will take a lot longer than people think as is the AI for self driving cars. BTW, Elon is building his own super computer in Buffalo. He needs to speed up the learning from the AIs.
Imagine Kelly with 3D printing.
@@larrybuzbee7344, that Kennedy speech always cracks me up because of how unimpressive it was as far as speeches go.
Seeing the test environments made me realize I'd love to hear more about all the software related to it. Who makes the tools to process all that data and make the dashboards used to monitor the testing systems? Third party, in house? What does the tech stack looks like? Stuff like that. I know this channel is not related to software but if you could feed this lead to some friend who does that and let us know about it that'd be awesome!
I cannot stress enough how important it is for engineers to work with not only manufacturing, but the mechanics who maintain these vehicles. I’m an aviation mechanic working on Boeing 747s, 767s, and 757s. There are components we are required to replace that the engineers clearly never intended to be removed once leaving the factory. For example, the bracket of a thrust reverser blocker door requires that a mechanic squeeze his hand in between the T/R’s exterior translating cowl and the inner T/R composite wall. We have to remove two castle nuts that are cotter pinned with sealant over them while working blindly, i.e. by feel, in order to remove them. The process takes over two hours to accomplish once you know which tools to use. This challenge could have been solved quite easily by creating a small access panel on the translating cowl which would reduce the time for removal and installation from five hours to about 1.5 hours.
Fun fact: during the life of the SR-71, titanium was not as technically recoverable as it might be today. So, the US intelligence community resorted to setting up a series of shell companies to source the raw materials from the Soviet Union
love the conversation with tonio, im an engineering manager and designer at my company and we always are constantly going from engineering to the shop floor speaking with machinists to make the best parts possible. Its the only way to do it
That's not the only way to do it, it's the only way you can do it. You can't exclude every other approach, because you haven't tried every other one.
You are right, that engeneering and production shoud work together, just like everybody with common goals. But claiming to know the only working method, is just arrogant.
@@gehtdianschasau8372
Wtf is your point
@@skippityblippity8656 Wtf is so hard to understand? Basically saying :"This is the only way to do it, because we always do it like that and it works for us" is ignorant. He is ruling out all the other ways he has never tried. I can't dumb it down any more for you , understand it or stfu! And don't be so rude, please!
I love hearing about cool new things going on in the tech, transportation and EV space. It's undoubtedly the wave of not only the future but increasingly the present. I'm constantly posting all the latest in EV and tech news on my channel too.
good comment, I recommend this technology channel, it is the best
I agree with you sir.
In other words, the aircraft uses a conventional turbojet to accelerate to a high enough speed for a ramjet or scramjet to take over.
I'm a technology fanatic, I'm going to watch all your videos.
As a mechanical engineer this is what i live for. thank you
Love your curiosity, Brian! You're always the first person in the room to ask great questions no matter what! That's why I love Real Engineering videos; practically pulling the questions out of my own head well over half the time. It makes for the most informative videos out there! Keep up the awesome work.
You had me at “working turbo-ramjet” - I will be watching this with great interest
The next AF1 is going to be designed from a mass produced aircraft so parts will be readily available. Creating a bespoke aircraft like the one in the thumbnail is utterly infeasible.
Like a C5 option best, just needs the interiors and the car carriers can act as extra decoys.
Even in the Soviet Union, such hypersonic civil aircraft were created. 40 years ago. The USSR was really developed in this area of technology. As a result, when the USSR collapsed, these aircraft stopped being produced, why? Because flying on such an airplane is 5 times faster, but the price is 10 or 15 times higher. Are you ready to fly 5 times faster, while paying $1000 instead of $100? (this is due to fuel consumption and greater wear and tear on aircraft at higher speeds; it’s hardly possible to think of any miracle that it will become cheaper)
it's never these companies' concern. the goal is to lure in the golden goose i.e. gov contracts and name their price funded by tax payers
are these hypersonic soviet civilian aircraft from 40 years ago in the room with us right now?
@@redapproves1330this is a rare company trying to not just rely on that. they have more in common with rocket lab tbh in their approach, and that itself gives me higher faith they'll actually pull it off.
rocket lab's ceo/founder was literally just a materials scientist and engineer. he had connections and some starting money, but you can get much of both just from working as an engineer for long enough.
@@arenio www.cia.gov/readingroom/docs/DOC_0000498793.pdf Yeah i think so
@@arenio I bet he means concorde rip-off
5:00 - perfect example of how America/Americans talk poorly of weaker countries, but also don't want countries to be on their level. They therefore view counties either as leaches or as enemies.
"I want to build a passenger plane"
"Cool. First can you help with our weapons of mass destruction and death?"
I think it would be cool to have a supersonic air force on one plane, however, I think the increased risks of hypersonic travel, especially in the near future, will mean that it'll be decades before there is one if one gets produced. Also Air Force One has to have an incredible amount of technology onboard for the President. That comes with so many issues, so I don't think it'll happen any time soon.
There’s million other reasons why this won’t work, even for passengers.
more importantly, the air force one flies with its motorcade. and while the president could fly hypersonic, lead time is still required bc hypersonic cargo flying is much harder bc of the larger volume needed
Good job editing out everything he was pointing to on his first engine. Very helpful.
NDA
“Engineers are just mathematically inclined artists.”
Thanks for this quote! It describes how I feel about being a engineer quite well.
just watched a 47 minute advertisement
😎
And… I enjoyed it?!
More like an infomercial or documentary
the president doesn't have to go anywhere in that short of a time period. It doesn't make any sense. IF anything, worst case the President needs airborne ENDURANCE.
-Former USAF Evaluator Pilot
business on the other hand would in many cases actually pay the premium bc the roi would be even greater
I like a reworked C5 option just fill the cargo space with a Presidential suite and good to go, already mil spec.
As a systems and mechanical engineering major in my senior year, hearing the last part of that conversation you were having about how engineers feel bottlenecked sometimes at a big company and have constraints is so true as an engineer, I would love to be more involved in the manufacturing process
at 34:20 the argument that economies will grow because of supersonic travel is false. In the examples which he used... Rome building roads, going to sail power, trains, etc, the purpose was to get information and goods from one place to another in a shorter amount of time. In the modern age, information travels through the internet anywhere in the world nearly instantaneously. Goods will always travel by sea or rail or truck due to the weight of larger consumer goods. The only real application for RAM and SCRAM jet tech is military, and perhaps a very niche civilian use such as rushing organ donations across the globe to save a life. Maybe if there was a fuel savings, but the service life of the plane will be shorter he alluded to
Now that’s what I’m saying man.
A faster jet is not at all comparable to the first great roads connecting countries and empires. We already have instant communication with the entire globe. It won't do anything for the GDP, and the fact that the dude from Hermeus was able to claim a 4 trillion $ increase with a straight face does not bode well. There is a use case in the military, but for consumer use it is an incredibly expensive toy for wealthy people... and similar to shoveling coal into a volcano when it comes to our sustainable aviation goals.
These videos need to spend more time on drawbacks and real metrics, not all company-fed propaganda.
100% agree. they move money like its not real
Thank you for not believing this bullshit man. I really enjoy it when somebody uses their brains here and just see all the flaws.
Agreed, this whole video was basically an ad.
Indeed lmao@@mullerstephan
Also, it is not China which developed high speed rail in the 20th century but Japan, China only started in the 21st. And the economic impact from that was from the fact that it is a mass transportation system, capable of moving millions of passengers, which will never be the case (in the short and medium term) for hypersonic flight.
Why are square nozzles so unnecessarily sexy
Ikr?
🤨
They're sleek, they're edgy, they're cool
Yeah I was thinking the same thing it just seems so clean
Looks like a plane out of A sci fi movie. So fucking sick
They hit on the real problem at Boeing and L-M where the eggheads are separated from the Blue Collars and the Bean counters above them are running the show by their books. The Engineers need to be guided by the hands on guys with the intuitive knowledge. And the bean counters have to stop thinking they run the show, when they only finsnce it.
Let's hope these guys don't confuse °F and °C.
0:33 you seem surprised these things exist? Lockheed SR-71 Blackbird (first flown in 1964, retired in 1989, 1998 & 1999) has 2.
I’m not trying to be mean, but I don’t see anything that impressive going on in this video. Some of the newest engine tech I see is over 30 years old
This just seems like vaporware to me too man@@K-Effect
They don’t fix any of the main problems about going hypersonic, they just provide a neat looking engine which if you get a couple dozen engineers and couple million dollars anybody can make something like that.
I thought this about a new Air Force One, ten minutes in and no mention of it. The UK had the Concord and we saw how that ended and why does the President need to travel at super sonic speed it's just not worth the cost.
@@jacked-666 another problem i see with air force one being so fast, how can the jets that fly with it keep up with the president flying mach 5, surely they're not going to let the presidential aircraft fly alone
@@alexdubu9203 excellent point
No shot this ever gets certified.
Why do you say that?
I’ve been in the industry for a little over 3 decades myself and while I’ve never personally worked with Tonio, from everything I’ve been told, he’s a wonderful natural leader and a generous lover.
The whole argument against hypersonic planes is the ear-shattering noise they generate. It is also incredibly cost inefficient when looking at the maintenance, repair, and fuel requirements. Airforce one has to constantly take-off and land from large cities, something a ridiculous Mach 5 aircraft is not suited for. I could see a lot of really cool tech come from this, but I'm more skeptical about airline companies pursuing interest in this, rather than their ability to achieve a mach 5 aircraft.
I don't have a problem with the propulsion, I have a problem with it melting.
Aerogel, titanium, carbon fiber, etc. There are current ways to deal with the heating, better than the SR-71. Like fiber glass that was infused with aerogel took a flamethrower to it, and the guy on the other side, with his hand on the material, didn't feel a thing.
The hard part is incorporating all that into a lightweight design.
@@courageouslyencouraged Like aerogel
@@WolfeSaberAerogel would make a terrible plane skin. It's incredibly brittle and fragile.
@@JohnSmith-sk7cg I talked about an infused substance. Also, there's graphene aerogel.
You can’t fool me, that’s the Normandy! Hail to the Commander Shepard In Chief!
Holy cow! I was already excited with the primary content of this one, but "Propeller!" I'm not an engineer, just an artist who loves aerospace! (SA43 Hammerhead is the GOAT) I'm beyond excited about your career forum for engineering! This is an Afterburner for Engineering! Fantastic!!!
Airforce one is always escorted with fighters. If they can't keep up there's little to no point.
wouldnt really need a fighter escort if you can outrun any threat
@@melchiorpoirier-coutansais5734
It's either outrun or outmaneuver the threat. It won't be both when there are fragile life forms inside the hypersonic plane.
You would because you can not outrun any threat. Scenario 1: missile flying against the target so you are not going to outrun. Scenario 2: during take off + landing phase you are not going to outrun, since regular travel speed. Nice point you mentioned. But not a universal solition.
@@melchiorpoirier-coutansais5734 That doesn't even make sense... there will be - if not already - hypersonic missles capable of taking out this non existent Airforce One. The threat will be there well before any mach 5 passenger jet is developed - if ever.
Air Force one isn’t always escorted by fighters.
34:33 him mentioning highspeed rail over normal rail is an extremely massive red flag. These guys aren't trying to make a plane, they're trying to get bought out by big aerospace
Can you explain your reasoning a bit more?
We got a transitioning engine before GTA VI
Lol
Brilliant video. I also enjoyed the American being unsure of the Irishman’s laconic reaction to holding the inconel lump. I don’t think he understood you were savouring it.
“it’s heavy”
“Uh, yeah it’s heavy”
[with pleasure] “I’m such a nerd about these things”
“…phew”
The issue with getting a job in most the companies stated in the video like Relativity Space is that being an US citizen is a must and that unfortunately is a huge hit for us enthusiasts who'd dream to work in such companies who are not US citizens. I'd learnt this bitter truth last year when I visited stalls hosted by various aerospace companies at the Spaceport America Cup, most not able to provide internships to non-US citizens. 😢
Yeah, that has been the case for the weapons industry for ever
@@Michallote They have division for civilian aircraft’s too. There’s many other companies that make normal commercial products and yet can’t allow non US citizens.
Some companies have inspiring mission statements: make life multi-planetary... accelerate sustainable energy. Hermeus' seems to be: keep America on top. Best to rebrand as Icarus.
"Make life multi-planitary" is COMPLETE BULLSHIT. Unless you know a way to generate an artificial magnetosphere for an entire planet, that is.
NORMANDY !!!!
I doubt Biden could survive a trip in this
14:30
Couldnt you just use the nozzle cone as a sort of a cork?
When its in compression engine mode, the cork/cap is locked in place but when it goes into ramjet mode the caps locks are released so the air pressure forces the cap onto the compression chamber forcing the air to go around it?
It might cause a timing problem, where the compression intake air could be shut off before the ram air could ignite, causing what i think is called a flameout(?)
I really feel for this engineer explaining things to you, as he is clearly passionate, but unable to articulate the stuff without being extremely technical and very hard to understand. :D
Becoming much more inter-disciplinary, collaborative in engineering practices is one way to ensure your ability to consider wider range of problems, wider reaching impacts.....also one way to transcend your job description on paper, become irreplaceable or much less replaceable by AI. I love this.
@29:01 to 30:08
"The way that they think about life is time under wing hours of engine operation, hours of flight. That is a horrible metric for us because you're not in the air that long. It's really about cycles. It's thermo cycles that are going to drive the life of these vehicles... etc."
As a retired member of USAF Space Command, It's horrifying to me to hear a young man whose schooling is based on theory but does not have much experience in the field of metallurgics, aircraft stress fractures, conditioning, and conservation.
You're not going to explain any more?
The most exciting thing about this IMO is that they were able to do this as a startup with a relatively small budget and team. Most of the giant Aerospace companies are known for their excessive delays and cost overruns. It is very clear that something needs to change, and find it encouraging that these new companies can get these prototypes made quicker and cheaper. The only question is, can they deliver and actually manufacture their products...
That building was used as a set for "Reacher", the series on Amazon.
36:09 The “first generation of high-speed planes” was Concorde/Tupolev Tu-144. Not Hermeus.
I saw a spiral hose going into Chimera at 17:51. It looked very much like the hoses used on an Air Start unit used to provide hot, high-pressure air to aid in starting a jet engine on an aircraft with an inoperative APU. Is this what it was? (it would have been almost as loud as the engine itself)
Thanks
41:16 “Even tolerancing, you learn about tolerancing, but you never fully understand it until you see two parts not going together properly.”
Hermeus VP Production (and engineer badass) replies: “Precisely”.
What a great way to respond after discussing tolerance.
I’m looking forward to seeing what and where Hermeus goes from here. No doubt, wherever they go, it’s going to be fast.
That's like printing metal!! That's amazing! 23:10
Your enthusiasm is contagious! I always look forward to your new videos.
What a great video, so glad I made time for it, thanks!
Tony is correct in his assessment…. Having the ability to walk on the floor and talk to the technicians constructing the vehicle was one of the great advantages of working at the main Sikorsky location in Connecticut!
lockheed martin executives cant walk the assembly floor??hmmm now what i saw
That young engineer has done very well in presenting the project, I bet he was bricking it about not releasing any of the real secrets, class video again, real engineering is a fitting name for sure!
I love that the DarkHorse is literally the DarkStar but real
IMHO AF1 is a bit of a relic of the mid-20th century - although they have high-tech toys all over it. I'm pretty sure that somewhere in some top-secret hangar there's a stealth version of Air Force One, of course not as large. I'm just speculating but it makes sense. If/when the SHTF government and high-level military chain of command will need protection/speed/stealth. Air Force One has been a great airframe during peacetime but idk even with AF backup if it can do the job it was meant to do. Protect.
Maybe I'm misunderstanding the complexities of the transition phase from normal jet engine to ram jet (in fact its near guaranteed). But for a plane with multiple engines, especially all near the center of the fuselage, why not transition between phases in sequence? Sure, you probably cannot maintain acceleration with only 3 of 4 engines thrusting in jet mode, but it would likely be enough to extend your time of transition, and maybe maintain current speed, as well as reduce the severity of the acceleration change. Then once one ram jet is up and running, move to the next engine for transition. All the while you maintain a steadier state overall while giving more time to make those transitions in the sweet spot of speed between the two.
“Natl security concerns” are the way to developing a passenger plane. I guess getting to a Mar a Lago bathroom really quickly could be handy for the DOD.
10:27 - That's not sub scale. That's a full scale engine for a weapon or drone. They already said they were going DOD.