Dream Chaser Tenacity Just Missed Its Ride To Space
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- Опубликовано: 4 июл 2024
- After Vulcan’s first launch early this year, the plan was for Dream Chaser to be the second payload sometime in the summer. That being said, recently it’s become clear that Sierra Space needs more time to complete testing and final prep before they are ready to integrate the spaceplane with Vulcan. Interestingly, rather than just waiting for Dream Chaser to be ready, ULA has decided to launch without them.
Specifically, they decided they’re instead just going to launch a mass simulator in order to ensure Vulcan is certified in a timely manner. However, because Dream Chaser is missing its ride to space, the next available Vulcan could be well into 2025 based on ULA’s current manifest. Here I will go more in-depth into this delay, ULA’s rush for certification, final spaceplane testing, and more.
For more space-related content check out - thespacebucket.com/
Credit:
NASA - / @nasa
ULA - / unitedlaunchalliance
SNC - / sierranevadacorp
Chapters:
0:00 - Intro
0:40 - Missed Its Ride
3:22 - Dream Chaser Tenacity - Наука
commenting again in opposition to another comment. VERY GOOD NARRATOR. KEEP THIS STYLE. Dispassionate information is rare and very much desired
fr, this guy is the reason i like the channel
Agreed! It's not robotic but it doesn't feel hyped.
The delay is unfortunate, but it's good that Sierra is taking the time to make sure everything's ready. Thanks for the update my friend!🚀🚀👍👍
Lol... I don't know about that. Boewing took years making sure everything is ready.
@@GetFitEatRightsierra isn’t boeing
@@GetFitEatRight Boeing took years wasting taxpayer money and clearly not making sure that everything was ready.
@@LoneHawk ULA is part Boeing which was part of jab. Not actual poke at Sierra.
I really like the no nonsense relaxing narration.
Nobody in the comments understands the value of Vulcan. It’s extremely efficient and can take big payloads to HIGH earth orbit. SpaceX mainly sends into low earth orbit. That’s why people want to fly on Vulcan.
Although you think most of us are Neanderthals, most of us realize that it’s about the finances. Falcon heavy, in all derivations, will always be cheaper to fly than this over budget, government funded lift system. On top of that, Bezos attachment to all things Chinese should be a huge red flag to anyone paying attention. This ‘thing’ should have been defunded the first time they said ‘Ya, we’re gonna need more money!’ Just like the other piece of junk the guburnumunt is throwing goobobs of money at for no reason, Boeing and the SLS!
Thanks man!
It's the NRO and Space Force wanting a second large rocket ready ASAP.
Exactly, Tenacity is a sideshow to the big budget national security contracts that pay the bills.
Will someone design a space fighter already. Just for the bloody cool points.
Orbital Interceptor
2 launches for the rest of 2024 is a 'busy schedule'? :P
SpaceX has more than that on their plate for the rest of the month.
HELLO!!!HELLO!!!...ULA is planning 25 launches next year...ULA is testing a new rocket ...they need certification.....Starship new rocket, doesn't even launch regular flights.... no???
@@javierderivero9299 I will believe that when I see that...ULA will be doing really well if they launch once a month.
@@markb2773 Well, ULA has an excellent track record of launches ...long before SpaceX...NO FAILURES!!!...is like saying starship is not going to work???...by the way this delay is NOT!!!...I repeat NOT!! because ULA...is Dreamchaser not being ready
@@markb2773 Well...ULA has an excelent track record, NO launch failures....long before SpaceX....is like not believing Starship is going to work???.....by the way this delay is not ULA ...Dreamchaser is not being ready!!
Impressive I hope all goes well with this. Someone has put a lot of time and money into this over a long time with no guaranty of a return. Keep at it.
Its a cute plane but my question is why is it that all of these space companies are having so much trouble getting their product to work and spacex is moving right along achieving its goals.?
Wonder how tthey stick the tiles on. Tiles falling off seems to be the biggest issues the shuttle had with 'em. Wonder if they've made innovations on adhesives? Even Starship is having issues with them falling off.
There looks to be 2 holes in each. I wonder if they're bolting them on and filling the countersunk holes with some type of goop.
Unsure, as Dream Chasers haven't flown yet, but hopefully Sierra is using modern manufacturing techniques similar to SpaceX. Dragon 2 capsules take up to six months to refurbish between flights, for replacing the heat shield, rockets, attitude jets etc. Two years ago SpaceX completely redesigned Dragon 2's heat shield, with a new structure and tile layout, as the previous design experienced operational failures. With an inventory of seven Dragon 2 capsules, I'd guess this didn't interrupt SpaceX's contracted NASA flight schedule. Fly one, return to earth, retrofit it while a different capsule is prepared for next launch.
Starship launches produce a *lot* of force at liftoff with huge acoustic shockwaves and vibrations that can knock off tiles. The forces on Dream Chaser are much smaller and it will launch under a protective fairing.
Also, Shuttle tiles stopped falling off and were rarely a problem late in the program. The usual issue was with debris striking the bottom tiles during rollout on the runway after landing, which in turn required a lot of repair or pulling of damaged tiles. Debris strikes from ET foam or SRB insulation also caused issues, especially on STS-27 when insulation from one of the SRBs broke off and caused wide-scattered damage to the tiles on the bottom of orbiter Atlantis.
Furthermore, a development late in the Shuttle program called Toughened Unipiece Fibrous Insulation (TUFI) tiles were proven much more resistant to damage, and it is further improved version of this type of tile that Sierra Space is using on Dream Chaser.
Dow Corning red RTV for high temp. areas.
one massive benefit for the dream chaser is not in the direct air stream at launch. so it won't get blasted with the thick part of the atmosphere as it goes up. still needs to survive the vibration, but much simpler. both shuttle and starship is riding outside (buran too, but that was a single event.)
I love Dream Chaser, but they have to pick up the pace. If necessary, they should also consider alternate launch vehicles although now the problem is their speed, not ULA. The opportunity for Dream Chaser will not always be there.
Missed Its Ride
If you snooze, you lose
Whaaaat? I thought that ULA was going to be the biggest delay, not Sierra.
ULA is starting to spam Vulcans in Decatur, they already have 23 in the flow
It is mind boggling how long it has taken them to build Tenacity.
they dont have a lot of funding
How many have you built?
They HAD to take long time, so they could BE, well, you know..
Well the difference between Sierra Nevada is their vehicle will return safely first time, as opposed to wasting billions blowing up multiple launch articles like SpaceX does.
And yes, I'll gladly bet you as much money as you are comfortable losing that their first launch will be totally successful.
At least unlike boeing, it'll likely NOT get stuck on space. So instead of late and dangerous, it's late but safe
ULA definitely dropped the ball here. They should have another Vulcan ready by now. They didn’t plan for any delays from Sierra after having dealt with Starliner? Really? Where’s the forward thinking?
The Dream Chaser looks like a water sports shoe designed for Hermes!
Christ….🙄 Not even a couple of university cube sats?
Getting any kind of satellite ready on short notice is pretty difficult, these things are usually planned long in advance
@@Scotch20precisely
A friend of mine is in university cubesat team and they booked their launch year ahead(Transporter 8 i believe?) And the cubesat was only ready for shipping last month, while being still very simple vehicle that basically is just little sat that takes photos and has solar panels
The whole "dream chaser" concept seems to be an reversion to the 1960's "Dyna-Soar" USAF concept, just maybe a little larger. For practical purposes there is an X-plane of this already flying, which has onboard tooling. Is the ULA just "playing along" and hoping that a commercial version of the X-plane will come to be, and then using it for "what exactly". Space tourism is not going to cut it. Needs to have a more relevant useage.
Look up ESA HERMES space plane. It's almost identical to Dream Chaser.
The usage problem is hilariously overlooked , are these all tax deductible or something ?
How is Dreamchaser "the ULA 'playing along'"? Dreamchaser is a Sierra Space project, not one by ULA. ULA is just launching Dreamchaser in the same way they would any other customer payload.
As for use-cases, Dreamchaser is quite different from Boeing's X-37B. Dreamchaser, at least the DC-100 variant, is designed to deliver cargo to a space station and return cargo to a runway on earth. It performs a similar role to SpaceX's Cargo Dragon or the Progress spacecraft. The main advantage it has is that Dreamchaser experiences low g forces during reentry and will land directly on a runway, which allows for faster recovery of more fragile payloads/ experiments.
It's a more reusable capsule. The choice to design it for an unreusable rocket is a mistake but because of its larger capacity, lower G loads and runway landing capabilities, it's still better than any other capsule. Its lighter than Orion and Starliner, and should have a lower turnaround time than crew dragon or at least be an alternative. again, the government wants to have 2 good crew vehicles, and right now crew dragon is the only real option.
@yourbrojohno Dreamchaser, at least the DC-100 variant, will not be transporting crew. Starliner remains the only alternative to Crew Dragon and Soyuz when it comes to transporting astronauts to and from the space station.
Dreamchaser + shooting star is designed to transport cargo to and from LEO space stations, competing with the likes of Cargo Dragon, Progress, and Cygnus.
I always have an issue with the term "mass simulator." We don't have the technology to simulate mass. It's a "payload simulator."
IF a tile needs to be replaced after the flight, how long does it take to manufacturer it?
Hours, days, weeks?
Just asking about actually making it, not the installation.
You should ask Musk, who cosplay as an aerospace engineer and says he "knows more about manufacturing than anybody else on earth."
@@wyattnoise More hater lies. But if you don't lie you don't really have anything do you? You will die the fool you were born. Shameful.
@@wyattnoise honestly its not that difficult !
I am SO looking forward to _Dream Chaser's_ first flight.
Hopefully next year, it's not working so well. Sierra Space isn't besties with SpaceX.
2 YEARS TO INSTALL HEAT TILES, WHAT?!?!
probably a bit misleading in the way that it included the practical engineering of how to install those tiles too. so the actual installation time is fraction of that. also the time is not really relevant, the workhour would be a better way of measure, since it depends on how many and how exclusively worked on this.
Don't care. I like Dream Chaser, it's a cool space plane.
Have they sorted out what exactly is the delay with the Dream Chaser? Seems weird they have cleared it up. Did the testing at KSC show something was going on with it?
Send it over to Elon, he will have it in space in like a day
Bummer.
Go with space X!!!
i have to wonder is there NO way for the falcon 9 fairing to be expanded? IF possible that would surely steal the supermajority of Vulcan/Arianne6 missions. Or is it an aerodynamic/centre of pressure thing considering falcons skinniness?
I think part of it comes down to the question is the few extra flights they might get worth the extra cost?
There was an extension to Fairing being done, but I'm unsure if Sierra's plane would fit in it. It was made for loads that needed special treatment like cyro
Is Falcon Heavy an option?
It has now become clear that all those people who have complained that Sierra Space has been delayed by ULA were simply wrong. Likewise, those that claim that NASA should have assigned Sierra to the Commercial Crew program ahead of Boeing were also in error. Boeing is starting from scratch, unlike SpaceX that had 5 years of Cargo flight heritage prior to designing Dragon 2. Sierra is in the same situation. Dream Chaser is a cargo spacecraft. After that is certified and flying, then only will they be in a good position to begin finalizing their Crew Capable version design. I give them about 4-5 years before a crew capable Dream Chaser will be certified by NASA, and it will need a crew escape system capable of aborting during all flight trajectory phases. NASA learned their lesson on Shuttle. No future human launch systems will be certified without complete crew abort safety capabilities.
Having to now wait until mid-2025 is a HUGE financial blow... Of course we won't be privy to that publicly, but it doesn't take a rocket scientist to understand income vs expenditures.
Sierra Space does not have Dream Chaser ready to launch this year at all, so that's all on them.
@@nowhereman1046 Absolutely
I'm so concerned that we have a deorbit contract for station, but not a single bit of hardware in orbit for the commercial replacement and the shuttle designed to get us there is delayed...
Or... they could just do like SpaceX: lauch it, watch it blow up, then celebrate their success.
Seems like Sierra Space is dead set on NOT working with SpaceX. They've only considered ESA's Ariane 5 (canceled), ULA, and BO as launch providers.
Sierra Space also has a big plan/agreement with BO to provide exclusive cargo and crewed flights to Jeff's new Orbital Reef space station.
F9 and FH don't have the payload size and volume to carry Dreamchaser they have 4.2 meter wide fairings as supposed to Vulkan's 5.4 meter fairing.
they shoot themselves in their foot ?
The whole purpose of this is that Dream Chaser may not even be ready to go in 2024 at all, at least according to some sources. That means that it'll be delayed into 2025 regardless. And on top of that, the whole point of CRS and Commercial Crew is they provide dissimilar redundancy, so that if one is not available, then another takes its place and keeps everything going.
Northrop Grumman is very desperate in using Falcon 9, and they're taking a risk in that, if anything goes wrong, they could wind up being stranded as well. But they put themselves in this position by not switching away from Russian-supplied engines many years ago, like ULA did.
Blue Origin is not a real hardware company. Everything they do is on paper and is delayed, delayed, delayed. They have yet to make a single launch to orbit and are having trouble with simple sub-orbital we have been doing for 60+ years. They spend most of their efforts suing the companies that are launching hardware quite successfully. Frankly, if Blue Origin was shut down tomorrow, the space programs in the US would all benefit greatly. They are a drag on the companies actually doing the work.
@@parajerry We'll see soon. They claim that they're going to finally launch New Glenn this year.
Hope they do better than SpaceX!!! If not it will take them another 4 years...
Im sure if they ask musk to fly this thing he could fit it into his busy schedule.
^.^
What up with ULA and Boeing?
With ULA? There is no problem what you mean?
Why’d you flip the thumbnail image?
Is ULA working on developing a reusable booster? If not, why not?
They don't fly a lot and have a built in customer.
ULA is working on SMART reuse, which would allow them to recover part of the Vulcan booster, specifically the very expensive engine section.
As for why they aren't working on propulsively landing the Vulcan booster, that becomes less and less efficient the faster the booster is moving at stage separation, which is part of why SpaceX's Falcon Heavy usually expends the core stage.
Additionally the two engine design they went with doesn't really lend itself to landing propulsively. Finally they seem to think that cheap SRBs make more sense than reusable liquid fueled side boosters, at least for now.
They are working on engine recovery, from what ive heard its going pretty well so maybe within year or two...
Inherently not practical when it comes to actually ramping up missions with the ULA making only two launches a year. I would expect that the costs of sending it up by Heavy would be about the same or less if they increase the cadence. I would be surprised if Elon wouldn’t do it. On the other hand he has his own reusable coming through.
Learn english
What's the point of having a rapidly reusable capsule when the rocket itself (mostly) isn't reusable?
So the capsule can go again on another rocket?
the capsule (cargo in general) is the actual costly part of space.
Because the capsule is the expensive part
Why not launch some student or hobbyist satellites for free.
Make it a 1 month rapid prototyping competition, top 3 winners get to launch for free. People will come up with some cool projects.
>1 month rapid prototyping
Might aswell throw that satelite into a trashbag and yeet it out into the woods.
Just buy a ride on Super Heavy.
I'm pretty sure if spacex gets the extended fairing designs done this could ride on a falcon heavy.
@@jonahhekmatyar I doubt Sierra would work with SpaceX. they would be more likely to use Blue Origin tbh.
@@geesehoward700Why not?
Literally why?
Thats like the worst thing they could do rn
Idk the dimensions of the DC but extended fairing isnt any wider, just longer so who knows.
Also most vulcan variants turned out to be cheaper than FH, atleast for national security missions iirc
Is Dream Chaser too big for F9?
heat tiles need change, we need a better system
Come up with one.
@@filonin2 textbooks are full of them I like golf ball dimples and long static poles, capsules do fine
@@filonin2 you can point out that something isn't going to work without having a solution.
@@ne1cup It's not as easy as you pretend, and lets face it pretending is ALL you are doing.
@@Scotch20 Except that the premise it's not going to work was flawed from the get go.
Should just ride on Space X rocket.
It's really dreamchaser which is the holdup here
Literally why? This is not a problem
@@_mikolaj_ My first thought was to get it going, but now that I think about it, if launched on a Falcon 9, this would be an almost fully reusable system.
@@MrClearview1 maybe it would be, but ULA is also planning on partial reuse, plus NASA wants redundancy not only in spacecraft but also launch vehicles, so idk. I mean i gues that if it would fit in F9 then F9 could be a backup launcher if Vulcan experiences a failure? kinda like cygnus rn while waiting for antares 300
@@_mikolaj_ Thank you
All it will ever be is a dream.
launch with spacex
...and rule out reduancy
Meanwhile, back on the Darkside of the Moon, China is...........
Meanwhile, back in Boca Chica, everybody is dropping ketamine as a homage to America's other unstable stable genius...........
What is that artificial intelligence voice is very weird
I don't think it's AI..
It's crazy how SpaceX launches at least twice a week, yet ULA considers launching twice in one year as busy. They really need to work on a reusable rocket
Unfortunately ULA execs don't deem reusability as "realistic" or "economical". Just like ESA doubling down on not developing a reusable rocket.
I'm just surprised anyone wants to fly on the Vulcan tbh. Both F9 and FH work out to be cheaper per flight than the equivalent Vulcan and they can both launch more payload. On top of that its easier to get a launch with SpaceX. When New Glen comes online as well I can see the Vulcan being made redundant.
@@geesehoward700 its the fairing size that matters, spaceX cant make the fairing wider or much taller because the width of the rocket is prettty small compared to other rockets, and the airflow from a wider fairing will make everything uneven. Since they cant make a biggger fairing, they cant launch larger payloads, so people have to use other rockets like vulcan
@@geesehoward700 Vulcan costs more than Falcon 9 but is cheaper than Falcon Heavy.
@@jonahhekmatyareven though BOTH "realistic" AND "economical" are right in front of their eyes. (SpaceX)
Sorry sierra space, but this is absurd. Work with spacex and you’ll never have to wait like this
What are you on? This is literally sierra's fault, not ULA's.
@@_mikolaj_ reality. I’m on reality. Vulcan has one launch, ONE!!! SpaceX has hundreds, pay them to delay a star link launch and get into orbit
@@expo1403 can you rewrite this sentence in a readable way? Cuz its kinda hard to get your point with all this, whatever emotions you have lol.
@@_mikolaj_ no cuz I kinda can’t speak your language
@@_mikolaj_he is saying that why should they keep on waiting on ULA’s vulcan as they have only one launch when the Falcon 9 launches just about every fortnight, and to just pay for the delayed starlink payloads. Hope this kinda helped
Dream chaser could go on top or inside a falcon 9.
Best of luck to ULA.
As for Dream Chaser, I hope they launch on top of the new Ariane-6.
I still have the ESA Bulletin (glossy magazine) from 1989, there is a detailed plan for a European crewed space plane HERMES to be launched on top of Ariane-5, to service a small space station.
Dream chaser at first seems impractical cause it launches on a unreusable rocket, but the landing infrastructure is very cheap and it weighs the same as an Orion capsule so it's basically a reusable, cheaper version of that with a cargo bay, plus it looks really cool so it can motivate people to focus more on space.
No one knows how good it is as a reentry vehicle, but considering the fairly low mass and a much bigger area to a capsule, as well as controllable attitude during reentry it could enable aerocapture for future interplanetary return, whereas I'm pretty sure Orion would need more ablative heat shield layers. In KSP RSS RO Ive been launching lifting body spaceplanes (not sstos) similar to dream chaser on my interplanetary transfer vehicles and a lander, to enable safe return to earth without needing extra fuel or having to ultra fine tune the trajectories. Considering the many shuttle mishaps from insulation hitting it on ascent, thinking of spaceplanes as effective reintry and landing vehicles is the way to go, shuttle tried to integrate that with a payload fairing and engine housing, and at some point it's too much. Now crew dragon is ofc much smaller, and lighter, but in terms of rapid reuse and the larger crew capacity of dream chaser, it paired with a reusable rocket could be a new era to cheaper and consistent spaceflight. I realize starship exists, but it has such a high dry mass because of its mission profile and now also requires ablative shielding, it is unpractical for crew return aside maybe like taking a few hundred people to LEO and back. Starship needs a 3rd stage to go anywhere besides LEO, and it needs improvements as it is to even reach that with any kind of payload. I look forward to seeing what develops from this craft.
Just let spacex launch that silly space plane, 'Dream Chaser'...😅
Delay, delay, delay, delay, delay, delay…
Is SpaceX the only agency/company that knows what they’re doing?
Because SpaceX has never had delayed projects...
@@aq_ua They're still years ahead of companies like Boeing
@@Scotch20 This isn't Boeing.
yep, that is why they landed their not a typo starships on mars in 2022, and not fumbling with suborbital tests in 2024...
So...
How is HLS going again?
ula NEEDS TO GO AWAY. tHEY ARE A huge WASTE OF MONEY!
i still dont get why these companies still are using the heat shield tech from almost 60 years ago. That tiled system is garbage and always has been.
I wonder if anyone is working on some type of a spray-on coating.
It could be stripped off after the flight and a new coat applied quicker than solving the giant 3D jigsaw puzzle that these tiles always seem to turn into.
Phenolic-ablator heatshields and silica-fiber tiles are both >40 years old.
I'm a little scared to ask what you think is better.
Okay then, what type of non-ablative heat shield tech do you propose then that isn't based on ceramic tiles or carbon-carbon composite.
The problem isn't that it's old tech, the problem is that there's just very little materials that can withstand the punishment of re-entry without also conducting the heat to the spaceship.
@@CensoredUsername_ when starship was first being designed, i specifically remember Elon saying they wouldn't use a tile system, instead there was this wild idea to use some of the methane pumped through a grid on the surfaces that needed shielding, and that it would create some kind of bubble that would dissipate the heat faster than tiles. I swear, i remember seeing that in the original starship designs, they even had a animated video and diagram to go with it. I don't remember much about it but it seems like they forgot or maybe figured it was too expensive, plus untested. There's also been ideas for a balloon type heat shield that is covered in or made of ablative material, and that way flexes with the stress. I'm just wondering where those ideas have gone. We all know the tile system sucks.
Wait, why do we need this thing? Its not a shuttle, we have a capsule and a starship on the way so why the hell are we funding this?
Who's funding this?
It'll be one more competitor to Cygnus and Cargo Dragon making the LEO space station resupply market that much more competitive. It's specific advantage is the low g reentry and return to a runway. This allows Dreamchaser to return more delicate experiments from a space station, and allows NASA to quickly take possession of a payload at a runway, rather than having to go through a lengthy recovery at sea.
What a joke! Only 20 years in the making, and every second paid for by the taxpayer. Of course they want to wait, why end the NASA gravy train!
Sierra Space has had years and years to get Tenacity ready for this flight and they blew it. Also, this reusable plane is not needed and is a waste of time and money. The program should be cancelled and Sierra Space terminated.
Sierra Space is like Boeing Jr.
Yeah it is needed, for returning sensitve expirments.. or critically injured people from space.. what a child
Hey smart guy, why dont you go up there to NASA managers and engineers who contracted this and explain them? I think that would be very helpful
Very much appreciate the excellent material in the video. On the other hand, PLEASE, PLEASE get rid of the narrator! You can’t find anybody else on the planet to read the script?
bro what this guy is the goat
Yo if someone's reading this don't even consider getting rid of the narrator. Is the main identifying feature of this channel. If they don't like it they can go somewhere else. We love it here!
Lmfao I remember seeing your comment something similar on another video. You desperately need to experience the touch of a woman someday; you’re going clinically insane.
bite me the narrator is exactly the right style, dry and competent.
is this a computer voice?so boring presentation!!
in the USA war and $$ comes before everything else and i mean that literally.