181–190 of 307 posts
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:D What calculation did you use though? Like some formula or is there a web utility for this, for example?
https://www.google.com/search?q=3+m%2Fs%5E2+%2F+%28gravitati... I think
If so, that is surprisingly similar to what I ended up with when trying to validate it!
I am curious what sort of physical preparation the driver (Kate Maggetti) did to train for these runs, if any? Surprisingly the average g-force is just under 3 g.
Interesting that they went with an open-cockpit design. I'd have thought closed cockpit would be faster because of better aerodynamics, even at these relatively low speeds. Any idea why this was chosen?
This record was set with a modified version the car they competed with last season.
One of the photos really brought something home to me. Where I would expect to see an axle or something to provide torque to wheels from the engine, there is just a yellow wire. I know that's how electric cars work. But something about it in the racing car context just brings it home to me - electricity just works differently to all our other intuitions about the world. Factories used to have bands and axels taking p…
It's amazing that all those car cylinders going up and down (or technically, being forced up and down by tiny explosions) are transformed into work.
Rotary motion -> work has been part of humanity for a long time. I suppose in our space-bound future it won't be a big factor
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Then there's the Brabham BT46 "Fan car" that actually raced in F1. Once. Before it was banned. :-) https://youtu.be/B294RfWj1QE?si=jxYpIgwtH44at6Bq
...and it's current spiritual successors The McLaren F1 and now the GMA T.50 https://en.wikipedia.org/wiki/McLaren_F1 https://en.wikipedia.org/wiki/Gordon_Murray_Automotive_T.50
It's not able to produce extra downforce at zero speed.
The McMurtry Spéirling is more akin to this, with a 1.4s 0-60mph run.
I am curious what sort of physical preparation the driver (Kate Maggetti) did to train for these runs, if any? Surprisingly the average g-force is just under 3 g.
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The dragsters need to have a complete engine tear-down after nearly every run, regularly explode in a giant ball of flame, etc.
They also blow a lot of that power out of the exhaust pipe. I bet in terms of efficiency per km/h/s the electic go-kart wins.
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In Micromouse ( https://en.wikipedia.org/wiki/Micromouse ) - a competition where autonomous devices solve a mouse maze - the fastest competitors are all using fans to increase traction (and thus speed).
radicalbyte, you're absolutely right that the use of fans in Micromouse increases the traction, and therefore the speed at which the maze is solved. Suction allows for impressive performances. However, a small caveat that might be worth considering is that while the suction indeed increases speed, it might be more accurate to say that it primarily improves acceleration instead of car speed: The issue often lies with…
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The irony of advocating against a "separate utility", and then promoting a separate utility...
You never use a calculator?
Impressive but for reference, about half the acceleration of a Top Fuel dragster, which are also still getting faster. Here's Brittany Force who holds the current records (fastest time, fastest speed): https://www.nhra.com/news/2022/brittany-force-sets-national-... 0 to 338.43 mph in 3.665 seconds over 1000 feet. (The cars got too fast for 1,320 feet and have been racing 1000 feet since 2008.)
Electric: 0-60mph in ~0.9s Top Fuel: 0-60mph in ~0.4s Wow.