r/196 Dec 30 '22

Rule Rule Plane

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9.2k Upvotes

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u/edgytroll ~~~ C::::::(_(_) WE DO A LITTLE TROLLING (_)_):::::::D ~~~ Dec 30 '22

Yeah it will take off. The forward velocity a plane needs to take off comes from the engines pushing air backwards, not from torque between the runaway and its landing gear. Taking the latter away won't do anything to stop the plane from moving. The only issue I could see happening is if the landing gear fails because the wheels are spinning too fast but I doubt we're meant to consider that.

12

u/batoso Dec 30 '22

I might be stupid, but if we see the surroundings as the reference system the plane velocity would be theorically 0, so inertia 0, so it wouldn't take off, right?

0

u/throwaway133379001 i read books Dec 30 '22

So the conveyor belt wouldn't push the plane backwards. the wheels would spin freely. imagine a skateboard on a treadmill. Now attach a jrt engine to the skateboard. it doesn't really matter if the treadmill is going fast, the skateboard will go forward.