View Poll Results: Will a plane on a conveyor take off?
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Plane/Conveyor controversy! ver.poll
The deer had to die!
Joined: Jun 2002
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From: Fussa, Japan
Free-spinning wheels, not connected to drivetrain. Essentially, the fuselage is suspended in air and then moved upon thrust of the engines. So the plane will move forward, the conveyor matching speed, however the wheels will spin backwards.
Thread Starter
:3
Joined: Aug 2005
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From: BFE
my contention is that as the tread mill speeds up it will create more friction on the wheel and thus more drag on the plane, keeping it stationary. think of it this way. if you hold let's say a bicycle wheel(by the axle) against a belt traveling 30mph then it should be harder to keep in place than one against a belt going 10mph.
I'm doing a shitty job explaining this, oh well maybe someone will understand what I'm saying.
I'm doing a shitty job explaining this, oh well maybe someone will understand what I'm saying.
can I change my vote?
it's my D in a B
Joined: Aug 2001
Posts: 24,787
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From: Your Mom's House
h: The wheels will spin the same way they normally do, just twice as fast.
Now here's a scenario: the conveyor belt is going in the same direction of the plane, maintaining the same speed. The plane accelerates and the conveyor belt follows suit. The plane gets up to take-off speed and leaves the ground with the wheels never turning :eek5:
h:
it's my D in a B
Joined: Aug 2001
Posts: 24,787
Likes: 1
From: Your Mom's House
my contention is that as the tread mill speeds up it will create more friction on the wheel and thus more drag on the plane, keeping it stationary. think of it this way. if you hold let's say a bicycle wheel(by the axle) against a belt traveling 30mph then it should be harder to keep in place than one against a belt going 10mph.
I'm doing a shitty job explaining this, oh well maybe someone will understand what I'm saying.
I'm doing a shitty job explaining this, oh well maybe someone will understand what I'm saying.
The deer had to die!
Joined: Jun 2002
Posts: 39,835
Likes: 0
From: Fussa, Japan
Nobama
Joined: Sep 2004
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From: Sarasota, Florida
And the engines can move the plane, so it takes off...
Last edited by BetterBob; Jan 3, 2008 at 04:56 PM.
Allergic to vitamin D
Joined: Jun 2002
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From: Earth
I wanted to strike up this subject weeks ago, but I watched the thread on H-T turn into a flame war and didn't want to visit the same on our well-mannered basement :chuckles:
At first I didn't think the plane would be able to take off. Then I came to the realization that the plane's wheels are basically a bearing and they really don't factor into the equation all that much. The thrust of the engines will still act on the airframe and provide forward motion, eventually leading to liftoff.
The outcome probably won't settle this arguement anyhow. There's no way they're going to do a full-scale test, and people will always find a way to prove how they did it was wrong.
At first I didn't think the plane would be able to take off. Then I came to the realization that the plane's wheels are basically a bearing and they really don't factor into the equation all that much. The thrust of the engines will still act on the airframe and provide forward motion, eventually leading to liftoff.
The outcome probably won't settle this arguement anyhow. There's no way they're going to do a full-scale test, and people will always find a way to prove how they did it was wrong.