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0 To 100 kph in 1 second [video]

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Re: 0 To 100 kph in 1 second [video]

#101

I would suggest that if you are allowed a fan that sucks air from under the car then you can easily achieve pretty much any acceleration. The reason F1 cars do not do this is because suction is limited in F1 for very specific reasons and it goes back to the fatal crash of Ayrton Senna. Basically, a car that relies too much on suction is unsafe to drive because any failure can throw the car out of track with fatal con…

The official cause of Senna's crash was due to a failure of the steering column that was modified before the race. Not du to loss downforce.

Adrian Newey, the man who designed the car Senna was driving, gave this quote: ” The honest truth is that no one will ever know exactly what happened. There’s no doubt the steering column failed and the big question was whether it failed in the accident or did it cause the accident? It had fatigue cracks and would have failed at some point. There is no question that its design was very poor. However, all the evidence suggests the car did not go off the track as a result of steering column failure… If you look at the camera shots, especially from Michael Schumacher’s following car, the car didn’t understeer off the track. It oversteered which is not consistent with a steering column failure.

https://www.formulanerds.com/features/the-story-and-conspira...

There's still debate on this.

Re: 0 To 100 kph in 1 second [video]

#102

Earlier quoted context omitted.

Spectators could follow along with FPV drones

Then we could just simulate the race based on the cars' and track's mathematical parameters, and then CGI the whole thing in Unreal Engine, and watch it in the Metaverse. No need for actual cars or drivers anymore.

Race car driver here: this proposal would be extremely boring. It’s amusing when there are people in the stands and it certainly can help pay the bills but we do this because it’s fun.

Re: 0 To 100 kph in 1 second [video]

#104
post #69

Earlier quoted context omitted.

A few of the current F1 drivers already have sim setups and play driving sims as well as the official F1 video game. What you're suggesting isn't too far off.

F1 sims, as fancy as they are, are pretty useless at replicating the actual experience on the track as they don't and can't replicate the high G-forces drivers experience and which impact the deriving style required to actually perform. They're just a super expensive video-game.

And yet, Verstappen plays them all the time and is also world class in sims. Maybe there are more similarities than you think.

Re: 0 To 100 kph in 1 second [video]

#105

Earlier quoted context omitted.

F1 sims, as fancy as they are, are pretty useless at replicating the actual experience on the track as they don't and can't replicate the high G-forces drivers experience and which impact the deriving style required to actually perform. They're just a super expensive video-game.

And yet, Verstappen plays them all the time and is also world class in sims. Maybe there are more similarities than you think.

Verstappen is aa bad example. He races F1 to finance his sim passion.

Hamilton was very outspoken that he dislikes the sim that it doesn't really make you a better F1 driver.

F1 drivers are good at motorsport because they've been driving in motorsport since they were 5 years old so they built decades of muscle memory on the real deal learning to feel the car with their butts, not because they play the sim all day, otherwise every Gran Turismo fan would be driving in F1.

Re: 0 To 100 kph in 1 second [video]

#106

Earlier quoted context omitted.

On the other hand, absolutely unlimited performance - perhaps without a human driver - racecars would be pretty cool to watch. Extreme speed! Grandstands etc would need to be extra secure though due to the higher speeds.

>On the other hand, absolutely unlimited performance - perhaps without a human driver - racecars would be pretty cool to watch. I bet nobody will watch it, when I was watching F1 it was already boring and many rules were added to reduce speeds and make it easier to over take, otherwise the order they start will be the order they will finish.

I honestly think that no one but a programmer would ever say watching that would be cool. I have no idea what the point would even be, but then again, I don't get video game contests either.

Re: 0 To 100 kph in 1 second [video]

#107

They say grip is the limiting factor. What about having something like tank tracks?

IIRC that grip scales linearly with the downward force and is (maybe counterintuitively) invariant WRT to the grip area.

People keep saying this, but if it was true, why would high-performance cars need wider tires?

Re: 0 To 100 kph in 1 second [video]

#108
post #15
post #10

impressive, but as I've witnessed a top fuel dragster do 0-320mph in just over 3 seconds (meters away from me!), think I am a bit desensitised.

Growing up watching top fuel I'm exactly the same. And until battery technology achieves the same energy density as fuel (and its a long way off) we won't see the same kind of speeds with electric vehicles.

For drag racing, you only need enough battery life to last a few seconds. Hell, this might spur the development of high-energy supercapacitors!

Re: 0 To 100 kph in 1 second [video]

#109
post #15
post #10

impressive, but as I've witnessed a top fuel dragster do 0-320mph in just over 3 seconds (meters away from me!), think I am a bit desensitised.

Growing up watching top fuel I'm exactly the same. And until battery technology achieves the same energy density as fuel (and its a long way off) we won't see the same kind of speeds with electric vehicles.

Nitromethane engines are less than 50% efficient and batteries are already about 10% as dense as nitromethane, so it's less than a factor of 5 difference.

For drag, the limit is more likely to be power density rather than energy density (same reason why more energy dense gasoline isn't used in top-fuel; the limiting power factor for a typical ICE is the amount of air you can get in the cylinder and you get about double the power with nitromethane vs gasoline for a fixed amount of oxygen).

[edit]

The power you can get with nitromethane is only double if you run stochiometric; since it is partially self-oxidizing, running richer lets you get even more power (sources seem to indicate 4x). Of course running rich lowers the efficiency even more.

Re: 0 To 100 kph in 1 second [video]

#110
post #86

Earlier quoted context omitted.

That could be very interesting and fun - compelling even. Many upsides. But without risk to life or limb and without a test of human (or monkey, or dog, or self aware AI, etc) emotional and psychological and spiritual and physical limits in real time, it could never be cool or sexy or glamorous or badass or epic or moving.

Put the humans into multi-axis simulators. And show them sweating. It will be the same physical battle, but without the risk to their life.

The only point to automobile racing is the risk to life. Otherwise we’re just driving around.
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