Yes it will fly.
I hope this hope this clears it up.
Lets say that the plane in question is actually a glider plane modified with a typical tricycle landing gear setup. The plane is on the conveyor belt runway attached via cable to a truck on a road running parallel to the runway. As the truck starts moving the down the road the plane starts moving as well. It has to! They are attached! It doesn't matter how fast the conveyor belt going or how fast the wheels are spining. Thats all the wheels are doing - spining.
The truck is providing the "thrust" that a real plane would get from its engine.
or
Lets say you had a real jet on the conveyor belt runway and it was tied down via tie down chains. With the engines at idle you bring the the conveyor belt up to speed (lets say 200 mph ~ 300 ft/sec). The plane is tied down its not moving, the wheels are just spining. But if one were careful you could attach the chains to a tow truck and pull it down the runway. It wouldn't matter how fast the conveyor was moving because once again, the wheels are free spining.
Thats the key. The wheels provide a 'frictionless' surface on which the plane rests while on the conveyor belt.
I hope this hope this clears it up.
Lets say that the plane in question is actually a glider plane modified with a typical tricycle landing gear setup. The plane is on the conveyor belt runway attached via cable to a truck on a road running parallel to the runway. As the truck starts moving the down the road the plane starts moving as well. It has to! They are attached! It doesn't matter how fast the conveyor belt going or how fast the wheels are spining. Thats all the wheels are doing - spining.
The truck is providing the "thrust" that a real plane would get from its engine.
or
Lets say you had a real jet on the conveyor belt runway and it was tied down via tie down chains. With the engines at idle you bring the the conveyor belt up to speed (lets say 200 mph ~ 300 ft/sec). The plane is tied down its not moving, the wheels are just spining. But if one were careful you could attach the chains to a tow truck and pull it down the runway. It wouldn't matter how fast the conveyor was moving because once again, the wheels are free spining.
Thats the key. The wheels provide a 'frictionless' surface on which the plane rests while on the conveyor belt.
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