"A plane is standing on a runway that can move (some sort of band conveyer). The plane moves in one direction, while the conveyer moves in the opposite direction. This conveyer has a control system that tracks the plane speed and tunes the speed of the conveyer to be exactly the same (but in the opposite direction). Can the plane take off?"
NOW, PLEASE DO WHAT I DID. GO TO FACEBOOK AND PUT "AIRPLANE THREAD BACK ON ROOFERS COFFEE SHOP"
Steve,
The thread had over 600 replies, if that helps.
Roofermann,
It will, because the prop is pulling against the wind, and the plane will roll forward, and it will take off just like it was on the ground. The treadmill might spin a million miles per hour trying to stop the plane, but unless the wheel bearings seize, that plane will lift off just like nothing was going on beneath it.
The only way it won't (aside from those seized bearings) is if you tie it a tree, or any other immovable object that happens to be stronger than the force the prop is applying to the air.
Sorry, it will fly.
Mike H Said: PS:Nope, the prop will not generate enough air over the wings for the plane to fly. It will get lighter on the wheels. The airflow needs to be over the entire wing surface. Otherwise planes would all have little stubby wings. :woohoo:I think Rooferman was saying it would fly, without saying it will fly.
I know that thread is somewhere. Has to be. I've asked Steve to find it and I will replace the question of the day and leave it forever.
PS:
I think Rooferman was saying it would fly, without saying "it will fly."
I got a royal chuckle out of it.
LOL
Tom, One thing I do know is there is vacation money.
Lefty Said: Tom Hay said the King Has Spoken. Who are you to say the King is dead?
Lefty, if the King is dead did he leave a Lovely Widow with a ton of his Kash?
Tom Hay said the "King Has Spoken". Who are you to say the "King is dead"?
roofermann Said: Not again. Planes dont fly unless there is enough airflow over the wings. Rotational speed of the landing gear does not matter. :woohoo: :unsure: :dry: :angry: :laugh:
Sorry bud, Plane flys. There is nothing holding it back. Think of it as a Helicopter without the prop on top but still angled enough to fly once speed is hit. Airflow will come over wings from the props. :)
Not again. Planes don't fly unless there is enough airflow over the wings. Rotational speed of the landing gear does not matter. :woohoo: :unsure: :dry: :angry: :laugh:
The King died. I don't do facebook.
Now let's see what the newbies think.