Bloodhound SSC was going to do this, funds dried up after airport runway tests. New owners needed to be found; they renamed it to Bloodhound LSR with DID go to Haakskeenpan, South Africa and ran 1010km/h (mach 0,82). Please report on that
@GertieYTube i made another comment on this vid about them, but in 2015 they came to my school and did a presentation for us. I was really hoping they would get it, im really glad they atleast broke 1000kmph
great video! although quite a bit of fluf and repeated info. Felt a bit like watching that video of the truck that is constantly about to crash into a pole.
@@b0bcorpThere's a fk ton of more engineering required. Even the wheels themselves are a marvel, each forged from a single billet of aluminium, otherwise they explode. Managing the incredible thrust required from various propulsion units. All the different braking stages as the car slows down. Managing to turn it round and prep for another run within the hour. Track selection and preparation. OK, OK I'm a bit of a nerd on this. But even just glossing over all aspects would be a few hours of video.
Challenges not mentioned. The jet or rocket exhaust blast acts like a feathers on a arrow. When the engine is shut off directional stability is diminished. Stopping distance at Bonneville or Black Rock is suspect due to government bureaucracy. The biggest problem is gyroscopic precession torque (GPT) of the steering wheels. When Breedlove turned Sonic Arrow on its side at 675 mph the car lifted against the wind direction, not in the direction of the wind. GPT is explained by Craig on page 248 of Sam Hawley's informative book "Ultimate Speed ".
1. Some air is going supersonic around the car making shockwaves 2. Some air is going supersonic around the car making shockwaves 3. Some air is going supersonic around the car making shockwaves Razor blades intermission 4. Some air is going supersonic around the car making shockwaves 5. Some air is going supersonic around the car making shockwaves
The biggest problem, while attempting this, is that the mass of the driver's balls increases so rapidly that the energy needed to accelerate further converges towards infinity at around 940 mph.
I remember back in 7th grade, so 2015, the team for the Bloodhound SSC came to my school to give a presentation on what they are wanting to achieve and how they have to prep the area and get rid of as many rocks and pebbles on strip of ground that they would run on as possible. I got a medal from them as well because i (for some reason) was the only person that could answer what SSC stood for😂
You missed the other big problem- finance. Every record breaking car has cost a lot and this curve steepens dramatically as speeds go up. Bloodhound LSR (effectively the same team that built Thrust SSC) seemed a long way down the road, but as far as I can tell ran out of cash. I would love to see them back on track but I doubt it’s possible.
Precisely, there does not seem to be enough will power to bring the funds to the table. They have built the base jet car, the race surface has been identified, it has been prepped, and they have done the validation runs up to 1010km/h (mach 0.82). They need money to develop the rocket to go with jet, but now the funds have run dry.. Unfortunately this will be similar for the upside down tunnel test. Getting the will power to provide the funds.
My name is on the tail of the Bloodhound , I won a competition at an event they held back when it was named Bloodhound SSC before a rebrand. I forgot about it until a couple of years ago and check in with their platforms to see if there's any updates a couple of times a year now. It's a shame to see but understandable that funds became an issue.
I was just reading sbout the Salar de Uyuni in Bolivia. It is the largest salt flat on Earth, at 10,582 square kilometers or 4086 square miles - about the size of the US state of Connecticut. The thinner air would give a bit of an advantage. I have no idea if the country would allow this use, but it would be easy to place a track as much as 20 or even 30 miles long on it.
Lots of fluff in the video. You had the engineer from Thrust SSC and Bloodhound but no mention at all of the only 1000mph project to actually build and test the car. He even mentions the location that Bloodhound was going to use with the Road and Mountain at either ends, its Hakskeen Pan btw. Marvel of British engineering and yet no mention of it.
I've made a handful of sounding rockets so far, 2 of which have broken the sound barrier, and it's insane to look at how similar the design principles are for cars and rockets. Everything from how you have to calculate aerodynamic stability, anticipate weathercocking(the effect of gusts destabilizing the vehicle), the change in the center of pressure on the body as the vehicle sweeps across different velocity regimes, the shockwave occluding fins causing dynamic instability and a whole lot of other things are all almost identical between supersonic cars and rockets. The amount of drag that's on a vehicle travelling in the transonic regime is insane, and pushing past that to break mach is a lot harder than people think.
I'm an aerospace engineering student well into my final year of university, and I have to say you've made my understanding of supersonic effects much more fascinating and intuitve.
That British Bloodhound SSC designed to do this is simply insane, there is a rocket engine from Nammo that I is so powerful it is like experiencing a train wreck. Just the sheer forces on the driver is unimaginable .....
The approach will not work as it also uses a jet engine resulting a vehicle that has too large or a frontal area and the shockwaves produced will also be much higher than it could be.
I have read before, in a fact book and its a memory so correct me if I am wrong, the the wheels on Thrust SSC, at the outside edges were pulling 86,000g. If I understand that correctly the surface of the wheel that touches the exploding ground, was trying to pull itself away from the rest of the wheel with the force of 86,000 times that of gravity. Even engineering a wheel at these speeds is hard to get your head around.
There is an iconic photo of the shockwave that was captured by the people flying in the air in the documentary about the Thrust SSC it's a incredible feat having to go that fast
great video. i’m majoring in mechanical engineering, and i’ve been studying for my fluid dynamics exams these last few months, listening to dr. evans on this topic, on a motorsport related channel, was fascinating (also, quite relieving to know that i studied accordingly and took notes properly in class😅). looking forward to more videos like this, i’ll make it to f1 as an engineer one day🤞🏻
An interesting video, but it would have been good to discuss this at different elevations above the sea with regard to the speed of sound and how the shock waves could be different
I am currently a student at Swansea University studying Aerospace Engineering, it was funny seeing Ben Evans the head of the Faculty of Science and Engineering on your video.
I can't believe you did this entire video without once mentioning Bloodhound LSR. The car was already tested up to 628 mph in 2019 using just its EJ-200 jet engine. It has yet to run using its rocket engine in addition. The team were running on the Hakskeen Pan dry lake bed in north-western South Africa. This site gives approximately 11 miles of very, very flat ground. They hired local people in advance of their testing period to clear all the stones from a patch of ground 11 miles long and wide enough to give them twelve (I think) parallel runs.
I remember when SSC came back to Coventry Transport Museum - we were invited to see it from school - it was pretty cooked at the back and dripping oil all over the floor - amazing piece of engineering seeing it close up 😊
I'm curious how you would adjust for the change in the balance of the car - With a run lasting what? 10-12 seconds? how much weight is in the fuel? that's a massive shift wouldn't it be?
Part of the salt flats in the US extends to around 60 miles or 100 km which is definitely long enough to accelerate and decelerate safely.... There are also steppes in Asia that stretch over 100-200 km without hills or rocks.
"So basically, going forward after hypersonic speed is like trying to push through water while diving from a cliff-each millimeter you go forward...🤔 As a poet and artist who has always loved physics, here's an idea for you: Why not start testing your machine by dropping scaled-down models into water in a controlled way? While water and air behave differently such tests might exacerbate enough air resistance and flow dynamics at extreme speeds. For example, 350 km/h underwater roughly translates to ~10,000 km/h in air in terms of resistance, and you wouldn’t need to go nearly that fast to break your record. Additionally, since I mentioned torpedoes-have you considered designing a sort of ‘cavitation shield’ for the car? Like how supercavitating torpedoes create a bubble to reduce drag underwater, maybe a similar approach could help your car slice through the air more efficiently at hypersonic speeds. Btw greetings from Italy and please (albeit brexit) keep the world speed record in Europe, we are rooting for ya!
@@RAWRWAFLno, you simply aren't understanding what I'm saying... I don't know anybody that thought of it as an actual barrier, like he was explaining. It's called over-thinking things. Think you fall into that same category. 😉
I wish Rossco and the Aussie Invader team the best of luck and I hope they get a chance to run and see what the can do. However, I feel the superior experience and engineering behind Thrust/Bloodhound SSC were a team with the best possible chance. If Richard and Andy couldn’t reach max testing after having a running car I see little chance of others getting the funding required to make attempts on the record.
The highest known acceleration voluntarily encountered by a human, set on December 10, 1954. John Stapp reached a speed of 632 mph (1,017 km/h), which broke the land speed record and made him the fastest man on Earth.
I would suggest to let the interviewed professor do the explanation. So the physics are clear from the beginning instead of observing a learning curve on subsonic transonic and supersonic aerodynamics that only gets correct halfway the video.
At what point does it just become cheaper and easier to pave a long and really flat road just for going fast? You could recover money by renting it out.
Build it and they will come. Is 5 mi really long enough? The issue may be, paving 25,000 ft, maybe 75 ft wide, smooth enough, and hard enough, isn’t that it’s just damn expensive. It’ll have limited intermittent use. And will require maintenance. Easily 100K cu yards of concrete. On top of 200K cu yards of base material. On top of 200K of compacted soil. I suppose it’s not nearly as much as a large dam.
You really have no clue how expensive high strength concrete is to pour at the tolerances required for this kind of speed attempts. Paving a single runway at Atlanta cost $1.2 BILLION and that's only 12,000 feet long. For cars going 800 - 1000 mph you'll need practically perfect level, which is part of the reason airport runways even for municipal airports of 5,000 feet length & 75 feet width cost over $10,000,000, but those don't require such extreme tolerances. To build a track would cost more than the GDP of almost every country on the planet... combined
The car would tear pieces of any thinkable material out of the surface, which doesn't sound survivable to me. Or well, you can make it from naquahdah, but that stuff is pretty darn expensive!
@tomhejda6450 They only use that stuff for generators. And there is concrete that could handle a car going that fast. It's a special type used in heavy runways (airports have specialized runways for cargo planes and Airbus 380)
So much of this video teased about the horrors of shockwaves and how to combat it with technical aerodynamics, the rest of the video proposed the solution by having a pointy tip and a really long concrete road....
Man, I've been following this project for years now. Seems that there have been funding issues periodically, but that's to be expected. They were once considering using a Jag F-Type engine just to power the fuel pump if I recall.
Could they use an internal gyro + rotating/counter masses rather than a fin and outrigger wheels to stabilize it? It's a delicate control problem, but it'd save a ton of aero drag.
Something to consider: With the development of smokeless gunpowder, projectile velocities took a significant leap upward. Ballisticians gradually made pointier and pointier projectiles. A few years ago, it was discovered, serendipitously, that a flat nose projectile flies straighter and faster, with much less pitch and yaw, than the pointy variety. Not, mind, a big flat point. A small flattening of the tip is all that is necessary to achieve better projectile performance. Maybe your land speed people should talk to a ballistician or two as well as the aerodynamicists?
Thats interesting. I was thinking, and I'm only a truck driver so this is all just imagination and lack of sleep on my part, essentially a C channel around the leading edges to capture air or slow it down so that that air could become the buffer. Obviously just a C channel, curved like that probably wouldn't be the ideal shape but I hope you understand what I'm getting at. Then I found your comment which kinda falls in line with what I was thinking overall, which is get the air in contact with the vehicle to disperse the oncoming air. Then there's how tall, how deep, etc.
@driver61 I don't know much about this but it is very interesting. One thing that came to mind was whether or not it would be possible to use some kind of concentrated electromagnetic emitter in the front of the vehicle (which iirc is possible to travel faster than the speed of sound) could cause enough air disturbance to trick the air into delaying the point in which it hits the speed of sound to give the vehicle time to reach mach 1 at approximately the same time the air does?
Never thought I'd hear someone anthropomorphising air molecules. The reason there is a sonic boom isn't because the air hasn't been given "fair warning"
Sounds like it needs modern active stability systems induced by wing style flaps, plus reshaping of the rear of the fuselage for a higher Mach than expected at those speeds. It also needs to be high enough from the ground to reduce shearing drag. A system underneath to provide an air pressure cushion may be useful.
The previous video about the Aussie Invader vehicle details how all these problems have been addressed. And shows the experience of the guy who will drive it.
you and your sponsor got me good talking about how close a shave it gives and your there with at least 2to 3 days growth on your face I don't believe you as you clearly haven't tried it
youtube sponsors are scams. you can find the same stuff they send you for cheaper, with regular stores that don't spend tons on advertising to get your subscriptions.
Curious thought experiment along the lines of Bakaroo Bonzai. A Lazer preheating the air along direction of travel reducing the drag? Theory is creating a temporary vacuum to reduce aerodynamic drag possibly eliminating the supersonic airflow pockets along the vehicle body.
4:16 "just think about that for a second: parts of your car are already breaking the sound barrier" two seconds later: "because of the shape of the car" shows picture of "typical" car. :D
Some people claim that the land speed record was broken by the fictional character Wile E Coyote. Early video footage of his speed runs was quite impressive but never official.
I can't remember exactly, but wasn't there a claim for going supersonic from an American team that claimed to have done it with a rocket-powered car that predates Thrust SSC? It wasn't officially recognised, since it wasn't a run in both directions. Maybe I'm remembering something incorrectly.
Maybe you're thinking of Blue Flame? It was an American land speed record car that was the first to break 1,000 **kilometres** per hour, and it was rocket-powered. Thrust 2 broke its record 13 years afterwards, and then Thrust SSC broke that record.
No the Budweiser Rocket car is the one you are thinking of, iirc it was just witness statements saying they heard a sonic boom and there wasn’t any picture/video evidence of good enough record keeping for the atmospheric conditions on the day.
@buffaloj0e Ah! So that nagging feeling that I had once read that there was an unofficial claim on Mach 1.0 before Thrust SSC was valid after all. Thank you!
The Thrust 2 almost flew off the ground during the run over 650mph it would taken another 7mph or more it would be flying off the ground according to the documentary in Thrust SSC
Love the channel. Hensen ought to update their add for channels like this. Had a good laugh at the "aerospace grade" razor! I thought that term died out in the early 2000's when it became known there is no such aluminum. Just tell us if it's 6061, 7075, or whatever aluminum they are really proud of using. Feels goofy on a channel like this...advertisers still writing script like the late 90's.
Curious questions: if we lowered the air pressure ( somehow), would that help reduce turbulence or increase it at supersonic speeds? would diffuser surrounding (circular or otherwise) the back of the turbines help stabilize the airflow. Also having a rod on the front of your (maybe 100 feet long) car to break the air help with the turbulence . Does the air swirls hurt or help more once at supersonic? Also what types of metal are used for the outside/engines that are different. Tia, love your videos and chat
Lower pressure wouldnt affect turbulence in a meaningful and consistent way, would be benifitial for reducing drag tho The rear of the jets is how they make thrust, theyre dumping a huge volume of air at a very high speed into the air, its a high pressure zone, not low pressure Having a rod out front does help, many supersonic planes do this, as did the thrust ssc iirc, no point in it being more than a couple feet long though, and isnt a huge difference, and is for breaking up the air, not turbulence Im not super educated on supersonic turbulence, so research this one yourself, but im under the impression that it doesnt directly affect the body, in supersonic flow, shockwave forming areas "throw" the air away from the body and turbulence from the re-filling of the low pressure zone this leaves doesnt take place until after the body has already completely passed Due to the (comparitively to aircraft) low speeds and short duration, aerodynamic heating isnt a major factor in this case, keep in mind, many low supersonic planes dont specify body material for these speeds, and they can maintain them for minutes, as opposed to merely seconds here. Its not until we start approaching mach 3 that it starts becoming such a major issue as to require major specific consideration in design
The best place to brake 1000 miles an hour would be at altitude example Joburg or Mexico city as both or over 1000 meters (over 60 miles) above sea level
@@jml3327 All jokes aside, Bugatti’s record wasn’t official either. They only went one way, and got to 304. Got a link to the Koenigsegg video? I couldn’t find it.
@@Hugo-em9nh Chiron was the first and so far the only production car to go over 300mph. Christian says the Jesko Absolute SHOULD go to about 330mph, but he hasn’t found a place and tires to test it out yet. The only test they’ve done is 0-400-0kph, which is NOT 300mph. But if you have a link to the video of that 330mph run, please, I would love to see it.
16 дней назад+1
I can see some AI algorithm (maybe a Reinforcement Learning) being used to help control the car while absorbing the shocks and disturbances. It may be even better to do with an AI because, well, we don't need to risk a person to do it.
May be a dumb idea but would making the fins semi rigid alleviate some of the crosswind issue. Or maybe have a perforated surface like pegboard to dissipate the lateral pressure?
Semi-rigid: doesnt reduce transferred force, decreases stability Perforated: very aerodynamically inefficient and the disturbed flow around the perforations will create problems of their own Sropping in the air: lose the ability to traction break, since your wheels arent on the ground, doesnt change the issue of running out of space unless you fly quite high, the required wings add drag, now you have to incorporate and and fly controls and controls surface suite to be able to control the vehicle while in the air
@michaelsmith2017 i totally support you coming up with ideas, I answered not to shut them down, but to help you understand. A bad idea learned from is one step closer to a good idea. Ive had my fair share of stupid thoughts about subjects im now well versed in
If the rear wheels are not contacting solid ground, why have wheels at all? You could have aerodynamic 'skis' and save on drag. You can tell that I am not an engineer in any sense.
So the greatest challenge comes from the ground. Is that because the run is not paved in concrete? In other words: Would a paved track make super sonic and even 1,000 mph achievable?
The salt actually has a cooling effect on the tires. They would get destroyed on pavement. At least that is what I was told during my visit to Bonneville.
The Thrust SST, or whatever they call it now, is not going to go 1000, not with jet engines! The frontal area of it is just too large. Additionally, the width of the vehicle will result in higher shockwave forces interacting with the ground. The Aussie approach makes far more sense as it is a pure rocket powered vehicle with smaller frontal area and a much smaller shockwave footprint. I just hope they get the funding to complete it AND find a different driver as he's too old!
🪒 Visit Hensonshaving.com/Driver61 and use code DRIVER61 to get 100 free blades with your purchase of a Henson Razor
Bloodhound SSC was going to do this, funds dried up after airport runway tests. New owners needed to be found; they renamed it to Bloodhound LSR with DID go to Haakskeenpan, South Africa and ran 1010km/h (mach 0,82). Please report on that
@GertieYTube i made another comment on this vid about them, but in 2015 they came to my school and did a presentation for us. I was really hoping they would get it, im really glad they atleast broke 1000kmph
It's funny to see a shave ad with a five day beard.
@Driver61 what music did you use in the video? thanks
But could you do it upside down, in a tunnel?
No. LSR cars require NO downforce to be acting on them as it is draggy and can crush suspension.
When Red Bull runs out of other ideas...maybe
@@---l--- Red Bull and Monster have NO interest. They have already been asked.
It’s probably possible but I’d need a willing partner 🤣
😂😂😂😂😂😂
great video! although quite a bit of fluf and repeated info. Felt a bit like watching that video of the truck that is constantly about to crash into a pole.
Exactly. 😂 Well said.
Hey, gotta make up the length to play the algorithm somehow...
@@b0bcorpThere's a fk ton of more engineering required.
Even the wheels themselves are a marvel, each forged from a single billet of aluminium, otherwise they explode.
Managing the incredible thrust required from various propulsion units.
All the different braking stages as the car slows down.
Managing to turn it round and prep for another run within the hour.
Track selection and preparation.
OK, OK I'm a bit of a nerd on this.
But even just glossing over all aspects would be a few hours of video.
I love that gif
13:25
"It is too round on the top. It needs to be pointy. Round is not scary. Pointy is scary"
Supreme leader Aladeen agrees.😂
I Aladeen@@jamsbong
If you don’t look at it, the points aren’t really there. Like avoiding eye contact in a lift after you’ve passed gas.
Challenges not mentioned. The jet or rocket exhaust blast acts like a feathers on a arrow. When the engine is shut off directional stability is diminished. Stopping distance at Bonneville or Black Rock is suspect due to government bureaucracy. The biggest problem is gyroscopic precession torque (GPT) of the steering wheels. When Breedlove turned Sonic Arrow on its side at 675 mph the car lifted against the wind direction, not in the direction of the wind. GPT is explained by Craig on page 248 of Sam Hawley's informative book "Ultimate Speed ".
I feel like I’m watching the same video 3 times in a row at the same time somehow.
It does feel a bit repetitive at times.
This video is shit, and has very little to do with the title
You have probably a very good understanding on the subject. For other people with no background, information is gold
1. Some air is going supersonic around the car making shockwaves
2. Some air is going supersonic around the car making shockwaves
3. Some air is going supersonic around the car making shockwaves
Razor blades intermission
4. Some air is going supersonic around the car making shockwaves
5. Some air is going supersonic around the car making shockwaves
ruclips.net/video/Ex2NB7JsLyA/видео.html
The biggest problem, while attempting this, is that the mass of the driver's balls increases so rapidly that the energy needed to accelerate further converges towards infinity at around 940 mph.
The quote for that is "I feel the need for speed* just popped into my mind 😅
These “size of balls” comments weren’t even funny when they began to appear 15 years ago. Now they are as sad as ever.
We are approaching the singularity
@@mercoid we’re not talking about the size, we are talking mass.
Good one . . . (or TWO, if you insist!)
I remember back in 7th grade, so 2015, the team for the Bloodhound SSC came to my school to give a presentation on what they are wanting to achieve and how they have to prep the area and get rid of as many rocks and pebbles on strip of ground that they would run on as possible.
I got a medal from them as well because i (for some reason) was the only person that could answer what SSC stood for😂
Super Sonic Car?
You missed the other big problem- finance. Every record breaking car has cost a lot and this curve steepens dramatically as speeds go up. Bloodhound LSR (effectively the same team that built Thrust SSC) seemed a long way down the road, but as far as I can tell ran out of cash. I would love to see them back on track but I doubt it’s possible.
Precisely, there does not seem to be enough will power to bring the funds to the table.
They have built the base jet car, the race surface has been identified, it has been prepped, and they have done the validation runs up to 1010km/h (mach 0.82). They need money to develop the rocket to go with jet, but now the funds have run dry..
Unfortunately this will be similar for the upside down tunnel test. Getting the will power to provide the funds.
My name is on the tail of the Bloodhound , I won a competition at an event they held back when it was named Bloodhound SSC before a rebrand. I forgot about it until a couple of years ago and check in with their platforms to see if there's any updates a couple of times a year now. It's a shame to see but understandable that funds became an issue.
I was just reading sbout the Salar de Uyuni in Bolivia. It is the largest salt flat on Earth, at 10,582 square kilometers or 4086 square miles - about the size of the US state of Connecticut.
The thinner air would give a bit of an advantage. I have no idea if the country would allow this use, but it would be easy to place a track as much as 20 or even 30 miles long on it.
Lots of fluff in the video. You had the engineer from Thrust SSC and Bloodhound but no mention at all of the only 1000mph project to actually build and test the car. He even mentions the location that Bloodhound was going to use with the Road and Mountain at either ends, its Hakskeen Pan btw.
Marvel of British engineering and yet no mention of it.
Presents vid with stubble.
Advertises razor while discussing how smooth his stubbly skin is.
I'm not convinced. Are you?
Tried it upside down?
I've made a handful of sounding rockets so far, 2 of which have broken the sound barrier, and it's insane to look at how similar the design principles are for cars and rockets. Everything from how you have to calculate aerodynamic stability, anticipate weathercocking(the effect of gusts destabilizing the vehicle), the change in the center of pressure on the body as the vehicle sweeps across different velocity regimes, the shockwave occluding fins causing dynamic instability and a whole lot of other things are all almost identical between supersonic cars and rockets.
The amount of drag that's on a vehicle travelling in the transonic regime is insane, and pushing past that to break mach is a lot harder than people think.
Repeating yourself like a teletubbie
Dude knows his audience
First driver61 video?
I'm an aerospace engineering student well into my final year of university, and I have to say you've made my understanding of supersonic effects much more fascinating and intuitve.
That British Bloodhound SSC designed to do this is simply insane, there is a rocket engine from Nammo that I is so powerful it is like experiencing a train wreck.
Just the sheer forces on the driver is unimaginable .....
The approach will not work as it also uses a jet engine resulting a vehicle that has too large or a frontal area and the shockwaves produced will also be much higher than it could be.
@Raptorman0909 The design is already there with jet and rocket engine 😎
16:29 "Could be" is doing some heavy lifting.
I have read before, in a fact book and its a memory so correct me if I am wrong, the the wheels on Thrust SSC, at the outside edges were pulling 86,000g.
If I understand that correctly the surface of the wheel that touches the exploding ground, was trying to pull itself away from the rest of the wheel with the force of 86,000 times that of gravity. Even engineering a wheel at these speeds is hard to get your head around.
There is an iconic photo of the shockwave that was captured by the people flying in the air in the documentary about the Thrust SSC it's a incredible feat having to go that fast
I have it on my wall to remind me that all problems can be solved with enough time and money.
great video. i’m majoring in mechanical engineering, and i’ve been studying for my fluid dynamics exams these last few months, listening to dr. evans on this topic, on a motorsport related channel, was fascinating (also, quite relieving to know that i studied accordingly and took notes properly in class😅).
looking forward to more videos like this, i’ll make it to f1 as an engineer one day🤞🏻
Bloodhound is or was so damn ambitious I hope they go for it. Maybe we can see it one day.
An interesting video, but it would have been good to discuss this at different elevations above the sea with regard to the speed of sound and how the shock waves could be different
Cop: Do you know how fast you were going?
High speed driver: Couldnt have been more than 1000mph
I am currently a student at Swansea University studying Aerospace Engineering, it was funny seeing Ben Evans the head of the Faculty of Science and Engineering on your video.
Brilliant video Scott. I really appreciate your efforts.
I can't believe you did this entire video without once mentioning Bloodhound LSR.
The car was already tested up to 628 mph in 2019 using just its EJ-200 jet engine. It has yet to run using its rocket engine in addition.
The team were running on the Hakskeen Pan dry lake bed in north-western South Africa. This site gives approximately 11 miles of very, very flat ground. They hired local people in advance of their testing period to clear all the stones from a patch of ground 11 miles long and wide enough to give them twelve (I think) parallel runs.
I feel these aren't cars. They're rockets designed to stick close to ground.
It's simple Guile's arms moves so fast he creates projectiles.
You could do another video on the wheels/tires. The physics and engineering are crazy too.
Tokenomics on point, a strong development fund, and a clear focus on community growth, Adaxum has it all!
I remember when SSC came back to Coventry Transport Museum - we were invited to see it from school - it was pretty cooked at the back and dripping oil all over the floor - amazing piece of engineering seeing it close up 😊
Excellent video - something the ‘ordinary’ man can understand rather than having to be a technical genius.
I'm curious how you would adjust for the change in the balance of the car - With a run lasting what? 10-12 seconds? how much weight is in the fuel? that's a massive shift wouldn't it be?
I admire your commitment to stubble when promoting shavers
Part of the salt flats in the US extends to around 60 miles or 100 km which is definitely long enough to accelerate and decelerate safely.... There are also steppes in Asia that stretch over 100-200 km without hills or rocks.
Lol where exactly are 200km flat land without hills or rocks
Current track in the Northern Cape region of South Africa.
Thousands of tons of pebbles and debris removed.
Company ran out of money and sponsorship.
Salt flats are too soft.
"So basically, going forward after hypersonic speed is like trying to push through water while diving from a cliff-each millimeter you go forward...🤔
As a poet and artist who has always loved physics, here's an idea for you:
Why not start testing your machine by dropping scaled-down models into water in a controlled way? While water and air behave differently such tests might exacerbate enough air resistance and flow dynamics at extreme speeds. For example, 350 km/h underwater roughly translates to ~10,000 km/h in air in terms of resistance, and you wouldn’t need to go nearly that fast to break your record.
Additionally, since I mentioned torpedoes-have you considered designing a sort of ‘cavitation shield’ for the car? Like how supercavitating torpedoes create a bubble to reduce drag underwater, maybe a similar approach could help your car slice through the air more efficiently at hypersonic speeds.
Btw greetings from Italy and please (albeit brexit) keep the world speed record in Europe, we are rooting for ya!
10:05 the sound "barrier" is ment in a physical sence... Not literally a barrier man. Smart people with no common sense make me laugh. 😂👍
???? So you agree (I think; your syntax is shit), but you're gonna laugh at him for explaining exactly what you're saying?
@@RAWRWAFLno, you simply aren't understanding what I'm saying... I don't know anybody that thought of it as an actual barrier, like he was explaining. It's called over-thinking things. Think you fall into that same category. 😉
Great video and explanation Scott on why the challenge is so hard. Rosco McGlashan
Hey Rosco how close is your project at now, do you want me to drive it, ?
Would love to see a detailed technical video about water speed record and Richard Noble's Thrust WSH
Absolutely fascinating, thank you for explaining this to me.
I wish Rossco and the Aussie Invader team the best of luck and I hope they get a chance to run and see what the can do. However, I feel the superior experience and engineering behind Thrust/Bloodhound SSC were a team with the best possible chance. If Richard and Andy couldn’t reach max testing after having a running car I see little chance of others getting the funding required to make attempts on the record.
The highest known acceleration voluntarily encountered by a human, set on December 10, 1954. John Stapp reached a speed of 632 mph (1,017 km/h), which broke the land speed record and made him the fastest man on Earth.
I would suggest to let the interviewed professor do the explanation. So the physics are clear from the beginning instead of observing a learning curve on subsonic transonic and supersonic aerodynamics that only gets correct halfway the video.
At what point does it just become cheaper and easier to pave a long and really flat road just for going fast? You could recover money by renting it out.
Build it and they will come. Is 5 mi really long enough?
The issue may be, paving 25,000 ft, maybe 75 ft wide, smooth enough, and hard enough, isn’t that it’s just damn expensive. It’ll have limited intermittent use. And will require maintenance.
Easily 100K cu yards of concrete. On top of 200K cu yards of base material. On top of 200K of compacted soil. I suppose it’s not nearly as much as a large dam.
It would need to be pretty wide. Paved isn't as good as a dry lake bed that can be dragged to smooth it.
You really have no clue how expensive high strength concrete is to pour at the tolerances required for this kind of speed attempts. Paving a single runway at Atlanta cost $1.2 BILLION and that's only 12,000 feet long. For cars going 800 - 1000 mph you'll need practically perfect level, which is part of the reason airport runways even for municipal airports of 5,000 feet length & 75 feet width cost over $10,000,000, but those don't require such extreme tolerances. To build a track would cost more than the GDP of almost every country on the planet... combined
The car would tear pieces of any thinkable material out of the surface, which doesn't sound survivable to me. Or well, you can make it from naquahdah, but that stuff is pretty darn expensive!
@tomhejda6450 They only use that stuff for generators. And there is concrete that could handle a car going that fast. It's a special type used in heavy runways (airports have specialized runways for cargo planes and Airbus 380)
So much of this video teased about the horrors of shockwaves and how to combat it with technical aerodynamics, the rest of the video proposed the solution by having a pointy tip and a really long concrete road....
Man, I've been following this project for years now. Seems that there have been funding issues periodically, but that's to be expected. They were once considering using a Jag F-Type engine just to power the fuel pump if I recall.
Could they use an internal gyro + rotating/counter masses rather than a fin and outrigger wheels to stabilize it? It's a delicate control problem, but it'd save a ton of aero drag.
At speed, the wheels already act as gyros so much so that steering the wheels could flip the car since the wheels don't want to change direction.
The Adaxum team is setting the bar high for presales. Transparency & bonuses equals community trust!
Something to consider: With the development of smokeless gunpowder, projectile velocities took a significant leap upward. Ballisticians gradually made pointier and pointier projectiles. A few years ago, it was discovered, serendipitously, that a flat nose projectile flies straighter and faster, with much less pitch and yaw, than the pointy variety. Not, mind, a big flat point. A small flattening of the tip is all that is necessary to achieve better projectile performance. Maybe your land speed people should talk to a ballistician or two as well as the aerodynamicists?
Thats interesting. I was thinking, and I'm only a truck driver so this is all just imagination and lack of sleep on my part, essentially a C channel around the leading edges to capture air or slow it down so that that air could become the buffer. Obviously just a C channel, curved like that probably wouldn't be the ideal shape but I hope you understand what I'm getting at. Then I found your comment which kinda falls in line with what I was thinking overall, which is get the air in contact with the vehicle to disperse the oncoming air. Then there's how tall, how deep, etc.
Iconizing Sound as a drum is perfect! 🥁
@driver61 I don't know much about this but it is very interesting. One thing that came to mind was whether or not it would be possible to use some kind of concentrated electromagnetic emitter in the front of the vehicle (which iirc is possible to travel faster than the speed of sound) could cause enough air disturbance to trick the air into delaying the point in which it hits the speed of sound to give the vehicle time to reach mach 1 at approximately the same time the air does?
He always comes up with something new to teach!
Never thought I'd hear someone anthropomorphising air molecules. The reason there is a sonic boom isn't because the air hasn't been given "fair warning"
Sounds like it needs modern active stability systems induced by wing style flaps, plus reshaping of the rear of the fuselage for a higher Mach than expected at those speeds. It also needs to be high enough from the ground to reduce shearing drag. A system underneath to provide an air pressure cushion may be useful.
The previous video about the Aussie Invader vehicle details how all these problems have been addressed. And shows the experience of the guy who will drive it.
you and your sponsor got me good talking about how close a shave it gives and your there with at least 2to 3 days growth on your face I don't believe you as you clearly haven't tried it
youtube sponsors are scams. you can find the same stuff they send you for cheaper, with regular stores that don't spend tons on advertising to get your subscriptions.
Bro... Safety razors have been around for a while now XD
Great work you two!!!! The concept of air is 100% different to me now LOL
Fascinating! Great subject!
Scott, you forgot to mention that air going super sonic makes shockwaves
Didn't see the razorburn coming. Thanks for the info.
Curious thought experiment along the lines of Bakaroo Bonzai. A Lazer preheating the air along direction of travel reducing the drag? Theory is creating a temporary vacuum to reduce aerodynamic drag possibly eliminating the supersonic airflow pockets along the vehicle body.
4:16 "just think about that for a second: parts of your car are already breaking the sound barrier"
two seconds later: "because of the shape of the car" shows picture of "typical" car.
:D
Really neat video. Why do you not mention Bloodhound LSR though?
Some people claim that the land speed record was broken by the fictional character Wile E Coyote. Early video footage of his speed runs was quite impressive but never official.
1:45 You forgot Indycars. The top speed, hit by Alex Palou during the 2023 Indy 500 Qualifying, was 245mph.
Seems like active suspension could help stability through sound wave disruptions…but would add a bunch to cost I imagine.
I can't remember exactly, but wasn't there a claim for going supersonic from an American team that claimed to have done it with a rocket-powered car that predates Thrust SSC? It wasn't officially recognised, since it wasn't a run in both directions.
Maybe I'm remembering something incorrectly.
Maybe you're thinking of Blue Flame? It was an American land speed record car that was the first to break 1,000 **kilometres** per hour, and it was rocket-powered. Thrust 2 broke its record 13 years afterwards, and then Thrust SSC broke that record.
@skua675 Ah, thank you, that might just be what I recollected in part.
No the Budweiser Rocket car is the one you are thinking of, iirc it was just witness statements saying they heard a sonic boom and there wasn’t any picture/video evidence of good enough record keeping for the atmospheric conditions on the day.
@buffaloj0e Ah! So that nagging feeling that I had once read that there was an unofficial claim on Mach 1.0 before Thrust SSC was valid after all.
Thank you!
The Thrust 2 almost flew off the ground during the run over 650mph it would taken another 7mph or more it would be flying off the ground according to the documentary in Thrust SSC
Love the channel. Hensen ought to update their add for channels like this. Had a good laugh at the "aerospace grade" razor! I thought that term died out in the early 2000's when it became known there is no such aluminum. Just tell us if it's 6061, 7075, or whatever aluminum they are really proud of using. Feels goofy on a channel like this...advertisers still writing script like the late 90's.
They should look for a location on the Atacama Desert plateau, which is at 4,000 meters, which would make the air less dense.
Not quite sea level.
There's maximum local air pressure allowed for these tests.
Bro all these comments about repetition got me thinking I’m just dumb and need the repetition 😂 great video
Curious questions: if we lowered the air pressure ( somehow), would that help reduce turbulence or increase it at supersonic speeds? would diffuser surrounding (circular or otherwise) the back of the turbines help stabilize the airflow. Also having a rod on the front of your (maybe 100 feet long) car to break the air help with the turbulence . Does the air swirls hurt or help more once at supersonic? Also what types of metal are used for the outside/engines that are different. Tia, love your videos and chat
Lower pressure wouldnt affect turbulence in a meaningful and consistent way, would be benifitial for reducing drag tho
The rear of the jets is how they make thrust, theyre dumping a huge volume of air at a very high speed into the air, its a high pressure zone, not low pressure
Having a rod out front does help, many supersonic planes do this, as did the thrust ssc iirc, no point in it being more than a couple feet long though, and isnt a huge difference, and is for breaking up the air, not turbulence
Im not super educated on supersonic turbulence, so research this one yourself, but im under the impression that it doesnt directly affect the body, in supersonic flow, shockwave forming areas "throw" the air away from the body and turbulence from the re-filling of the low pressure zone this leaves doesnt take place until after the body has already completely passed
Due to the (comparitively to aircraft) low speeds and short duration, aerodynamic heating isnt a major factor in this case, keep in mind, many low supersonic planes dont specify body material for these speeds, and they can maintain them for minutes, as opposed to merely seconds here. Its not until we start approaching mach 3 that it starts becoming such a major issue as to require major specific consideration in design
I love this. Thanks for sharing
16:42 Crazy Australia?
Nah, Mate
He is just a normal Aussie doing normal Aussie things.
Would shooting an energy beam from the front of the car, to excite the air molecules at hyper-sonic speeds - help stabilize the volatile behavior?
The best place to brake 1000 miles an hour would be at altitude example Joburg or Mexico city as both or over 1000 meters (over 60 miles) above sea level
1:46 Koenigsegg, Imma let you finish, but Bugatti made the fastest production car of all times (304mph) 🤷🏽♂️ 🎤
Koenegsegg was faster just wasn't official.
@@jml3327 All jokes aside, Bugatti’s record wasn’t official either. They only went one way, and got to 304. Got a link to the Koenigsegg video? I couldn’t find it.
Koenegseggs fastest production car can hit 330mph (Koenigsegg Jesko Absolut)
@@Hugo-em9nh Chiron was the first and so far the only production car to go over 300mph.
Christian says the Jesko Absolute SHOULD go to about 330mph, but he hasn’t found a place and tires to test it out yet. The only test they’ve done is 0-400-0kph, which is NOT 300mph.
But if you have a link to the video of that 330mph run, please, I would love to see it.
I can see some AI algorithm (maybe a Reinforcement Learning) being used to help control the car while absorbing the shocks and disturbances. It may be even better to do with an AI because, well, we don't need to risk a person to do it.
I was waiting for another video on this😃👍
Thought I clicked on a superfastmatt video and was so confused by the posh production quality
A poor man turning an average car into a monster always beats a toff in something they bought from the shop.
A very complicated subject explained so succinctly
I learned so much from this video
Thanks muchly
:0)
Basically it is like hitting the air so hard that it acts like oobleck
They might apply even more powerful rockets so they can accelerate quicker to 1000mph. That way the lenght of the track doesn't have to be that long.
It is very easy to break that barrier - what is hard is to stay on the ground while doing it :)))
May be a dumb idea but would making the fins semi rigid alleviate some of the crosswind issue. Or maybe have a perforated surface like pegboard to dissipate the lateral pressure?
Do the rules state that you have to decelerate and stop on the ground? If not, once you hit 1000Mph, why not lift off and decellerate in the air?
Semi-rigid: doesnt reduce transferred force, decreases stability
Perforated: very aerodynamically inefficient and the disturbed flow around the perforations will create problems of their own
Sropping in the air: lose the ability to traction break, since your wheels arent on the ground, doesnt change the issue of running out of space unless you fly quite high, the required wings add drag, now you have to incorporate and and fly controls and controls surface suite to be able to control the vehicle while in the air
@@noncog1 like I said, probably a dumb idea. I'm definitely not an aerodynamicist but every now and then a blind squirrel finds a nut. 😀
@michaelsmith2017 i totally support you coming up with ideas, I answered not to shut them down, but to help you understand. A bad idea learned from is one step closer to a good idea.
Ive had my fair share of stupid thoughts about subjects im now well versed in
There is no imperative for Britain to break the record because Thrust SSC holds it. It needs an active competitor to create a race.
If the rear wheels are not contacting solid ground, why have wheels at all? You could have aerodynamic 'skis' and save on drag. You can tell that I am not an engineer in any sense.
The wheels and bearings will have a huge load put on them.
I think that will be the issue.
So the greatest challenge comes from the ground. Is that because the run is not paved in concrete?
In other words: Would a paved track make super sonic and even 1,000 mph achievable?
The salt actually has a cooling effect on the tires. They would get destroyed on pavement. At least that is what I was told during my visit to Bonneville.
The wheels MUST dig into the ground.
Not too good for any paved surface, and really really bad for concrete.
The Thrust SST, or whatever they call it now, is not going to go 1000, not with jet engines! The frontal area of it is just too large. Additionally, the width of the vehicle will result in higher shockwave forces interacting with the ground. The Aussie approach makes far more sense as it is a pure rocket powered vehicle with smaller frontal area and a much smaller shockwave footprint. I just hope they get the funding to complete it AND find a different driver as he's too old!
Excellent interesting video...gained some knowledge.
Come on Scott, a scruffy stubble we are advertising a razor, pull the other one!
Like cavitation in air high to low pressure collapse
WOW!!! Crazy interesting 👍👍👍👍
That ain’t no car, that’s a plane what ain’t got no wings😂
Projects like Adaxum with strong use cases and a clear vision often lead the next bull run. Definitely worth considering!
would it count if you drove through a 10+ mile long straight hyperloop tunnel that had no air in it?
Aren’t there production cars with active aerodynamics? Like wings, spoilers, diffusers and such?
Yup, but compared to the speed of sound, they aren't production cars, they're production snails.
So are we getting a supersonic upside down car!?
I could easily design a surface capable of that, once I finish my Brilliant course. Gimme a couple weeks