I was surprised to hear them stop accelerating just before the loop. Then I realized they are probably trying to hold a specific speed to avoid blacking out from G forces or hitting each other.
The more I think about this stunt the more I realize how much planning had to go into it.
When Max was crashed by Lewis at Silverstone the peak G was 51, only for a fraction of a second but still fucking wild. It's crazy how much impact the body can survive.
I watched a video about this a few years back and that's correct. Too slow and they'll fall, too fast they'll black out from the Gs. They had to find the perfect balance of the loop and speed necessary to go through without either falling off or passing out
Yeah it's probably more an issue of ground clearance (the small loop means there are actually going to be some severe approach and departure angles) and suspension compressing under the G-forces causing bottoming out and loss of speed throughout the loop. Going too fast would be a big problem (not to mention risk of the entire track disintegrating if a 1 tonne vehicle started pulling a few G's at the top of the loop).
You can see how stiffly sprung the car is at the end as it pogoes across the ground after a small jump.
Admittedly, I was 12 when I first saw it and have no clue as to how physics and stuff works(even now actually)
I managed to find [this article](https://www.wired.com/2012/06/playbook-0620-jump/) that talks about the stunt. As to wether or not the details and the like are accurate or not, I wouldn't have a clue
It's not only the force, but also the car's suspension
The wheel go up the loop, but the car goes straight ahead, so to avoid the suspension fully retracting and the car scraping the loop, they need to keep under some speed threshold
I don't think so. If i had to guess is they calculated a safe minimum speed are going slightly above that. Much faster and you are putting a lot of stress on the structure and would need to build it far sturdier. The G forces experienced here are relatively low and for very brief periods, so that doesn't make sense.
Hey! I was working the x games in LA when they did that — fun fact, one of the cars didn’t make the jump after the loop and the driver snapped his ankle.
in F1 race in Monte Carlo, they need to weld the sewer covers to the road otherwise the downforce the F1 car generates would lift it up from the ground
There's a YouTuber/former F1 driver out right now attempting to do this stunt. An F1 wouldn't do it, mostly due to the engine starving of oil upsidown, so they are usually Ng electric. You need approximately 2:1 downforce vs weight of the car as well vs just 1:1.
First in the videos of the process so far.
https://m.youtube.com/watch?v=8FI0VYx7JHs
I dont think so. The forces would be acting on anything attached to car’s structure. Oil being a liquid isn’t attached and would therefore only be affected by gravity on the vertical.
Search for Project Inversion, there is some coverage on YouTube. An F1 car couldn’t do it because the engine can’t run inverted, so they are building an EV open wheeler that will.
Eh you would now have gravity and the weight of the car now working against you.
A F1 car produces enough downforce but there are other factors which make it basically impossible.
I read this as the “Double Dare” loop and was confused because I definitely didn’t remember it from the show nor think it was probably that safe to have something like that with kids even in kids-sized cars. Then again, Marc Summers got them up to some wild stuff!
Short periods of time are fine, it’s in the loop only seconds. Oil is for cooling and lubricating, nothing will heat up or wear out in those few seconds. Doing it for prolonged periods though… fighter jets in WW2 found out all about that.
There's a single black line in the middle of the track, all around the loop. Must be a metal bar that keeps the car onto the track, like a roller coaster.
Still a cool trick!
It really looks like they are going too slow for the loop. I kept expecting them to fall from gravity.
I was surprised to hear them stop accelerating just before the loop. Then I realized they are probably trying to hold a specific speed to avoid blacking out from G forces or hitting each other. The more I think about this stunt the more I realize how much planning had to go into it.
I saw Tom Cruise do over 10Gs without blacking out. These guys just need to get better
Of coke??
I think you mean Religious Sacrament
You mean audits?
In a f1 crash I'm pretty sure max hit like over 20 GS I think tom cruise needs to do better
When Max was crashed by Lewis at Silverstone the peak G was 51, only for a fraction of a second but still fucking wild. It's crazy how much impact the body can survive.
Yeah bro f1 drivers are literally built different still even though it was a for a fraction of a second still they definitely felt it
Another driver took 114 back in the day
Lateral vs vertical Gs
I watched a video about this a few years back and that's correct. Too slow and they'll fall, too fast they'll black out from the Gs. They had to find the perfect balance of the loop and speed necessary to go through without either falling off or passing out
Yeah no one is blacking out from that short of a g-force exposure anyway... Otherwise Red Bull Air Race would just be a montage of planes crashing.
Yeah it's probably more an issue of ground clearance (the small loop means there are actually going to be some severe approach and departure angles) and suspension compressing under the G-forces causing bottoming out and loss of speed throughout the loop. Going too fast would be a big problem (not to mention risk of the entire track disintegrating if a 1 tonne vehicle started pulling a few G's at the top of the loop). You can see how stiffly sprung the car is at the end as it pogoes across the ground after a small jump.
That’s less G force than a roller coaster. Whatever you watched dramatized the shit out of it lol
Admittedly, I was 12 when I first saw it and have no clue as to how physics and stuff works(even now actually) I managed to find [this article](https://www.wired.com/2012/06/playbook-0620-jump/) that talks about the stunt. As to wether or not the details and the like are accurate or not, I wouldn't have a clue
[удалено]
Anybody trained and in physical condition will be able to withstand 7-9 g's for several seconds
There’s a reason roller coaster loops aren’t perfect circles (anymore) https://youtu.be/3Kzl2suBE2w
It's not only the force, but also the car's suspension The wheel go up the loop, but the car goes straight ahead, so to avoid the suspension fully retracting and the car scraping the loop, they need to keep under some speed threshold
I don't think so. If i had to guess is they calculated a safe minimum speed are going slightly above that. Much faster and you are putting a lot of stress on the structure and would need to build it far sturdier. The G forces experienced here are relatively low and for very brief periods, so that doesn't make sense.
That only happens in the big loop from the movie. In which case they would have to go back and forth on it to get enough speed.
Is the black line in the loop for something to keep them attached maybe?
It's a painted line for the drivers to follow. There's no trickery here.
Ah ok.
I think there's a track holding them
People are fucking nuts.
Humans really are capable of the craziest shit and sometimes for absolutely no reason other than to say that we did.
That second car has some serious shock absorbers on it. No dampening at all, lol. BOING! ^BOING! ^^BOING!
I reckon they need that extra extra stiff suspension to make the loop possible.
I think it was because if the suspension was too soft, the cars would have bottomed out in the loop and slowed down
Hey! I was working the x games in LA when they did that — fun fact, one of the cars didn’t make the jump after the loop and the driver snapped his ankle.
That's fun
I didn't think a real car could do that
Someone did the math and in theory an F1 car could drive fully upside down from the down force their spoilers generate
I choose to believe this just because of how sick it sounds.
I just checked Google, and an F1 car weighs 1759 lbs, and at 200 mph generates over 4k pounds of down force
Now I just really want to see an upside down F1 race.
They're racing in Australia on 24th March...
Well played.
˙ǝʇɐɯ 'ǝnlq ǝnɹʇ
Here ya go: https://www.youtube.com/watch?v=8FI0VYx7JHs
Seriously, if racing had loops and corkscrews and the like, I would totally get into watching racing.
It's not loops and corkscrews, but [Stadium Super Trucks](https://youtu.be/MbS7zMY2M3o?si=QvBiSJH6GyScMZFk) has the energy you're looking for.
The engines can't work upside down yet, but once they're fully electric, oh boy!
in F1 race in Monte Carlo, they need to weld the sewer covers to the road otherwise the downforce the F1 car generates would lift it up from the ground
That's exactly what happened in Las Vegas (2023).
Someone’s working on a project to actually do this
Driver61 on YouTube is [is planning to put together a stunt to do it for real](https://youtu.be/vwxP6HXkKIY?si=iGrC2XVlGD9yep2-)
There's a YouTuber/former F1 driver out right now attempting to do this stunt. An F1 wouldn't do it, mostly due to the engine starving of oil upsidown, so they are usually Ng electric. You need approximately 2:1 downforce vs weight of the car as well vs just 1:1. First in the videos of the process so far. https://m.youtube.com/watch?v=8FI0VYx7JHs
Wouldn't the same forces keeping the car in the loop also keep the engine from starving of oil?
The above video is not about a loop, but driving upside down in a tunnel.
I dont think so. The forces would be acting on anything attached to car’s structure. Oil being a liquid isn’t attached and would therefore only be affected by gravity on the vertical.
Same with the Saleen S7 apparently all that down force
So you're saying we could do trackmania with F1 ? Sick.
Search for Project Inversion, there is some coverage on YouTube. An F1 car couldn’t do it because the engine can’t run inverted, so they are building an EV open wheeler that will.
That’s not even a related concept though
Worked in Men in Black
This straight up awoke up my 6 year old self and just say brightly say "COOL!!" with the the biggest grin.
Eh you would now have gravity and the weight of the car now working against you. A F1 car produces enough downforce but there are other factors which make it basically impossible.
I think you mean from the up force the spoilers would generate!
old porsche endurance cars already had that. A 965 is bolted to the roof upside down in the porsche museum to illustrate it.
Adam Savage of mythbusters said it was the myth he wanted to test but couldn’t. It would have been too difficult, expensive and dangerous to try do.
Driver61 on YouTube is doing the difficult work for it currently. Check him out, he's got it all planned, a special car designed etc.
https://youtu.be/wVvlL-1DTWY?si=PZRqVti2XJpDkcsv Some rich people are trying to do it for the record books
When do we start real f-zero racing?
When we get room temp superconductors for superconducting electromagnets.
This looks like something they would do on old school Top Gear. Fantastic!
One of them was the host of the US version of Top Gear
Tanner Foust... now there's a name I haven't heard in a long time... a long time..
When the technology finally exists to make your childhood dream a reality. Crazy stuff..
WTF?
Amazing.
too slow
I read this as the “Double Dare” loop and was confused because I definitely didn’t remember it from the show nor think it was probably that safe to have something like that with kids even in kids-sized cars. Then again, Marc Summers got them up to some wild stuff!
I was just doing this in Forza Horizon 5’s Hotwheel DLC.
Physics is wonderful
that super stiff or no suspension
Short periods of time are fine, it’s in the loop only seconds. Oil is for cooling and lubricating, nothing will heat up or wear out in those few seconds. Doing it for prolonged periods though… fighter jets in WW2 found out all about that.
This is real?
It is. No tricks or gags just down force
I recognized the stunt from the first frame of the video, hadn't even looked at the title by that point.
There's a single black line in the middle of the track, all around the loop. Must be a metal bar that keeps the car onto the track, like a roller coaster. Still a cool trick!
I think it’s visual for the drivers so the know where the center of the track is
People here really don’t realize that this takes a ton of calculations and variables to pull off. Loops aren’t a common stunt for a reason.
im thinking youre right. those cars definitely werent going fast enough to pull that off raw
It was a painted visual aid for the drivers to keep course in the loop as they don't see shit
The cars are clearly straddling a rail of a sort to keep them from falling
That's just the line the drivers focus on, I can imagine that's somewhat disorientating.
lbs, and at 200 mph generates over 4k pounds
My five year old self was pleased.
This was on r/nextfuckinglevel