View Poll Results: Will a plane on a conveyor take off?
Voters: 67. You may not vote on this poll
Plane/Conveyor controversy! ver.poll
Civilian
Joined: Jun 2003
Posts: 8,407
Likes: 1
From: Miami Beach. FL
No, because the friction coefficient between the fuselage and runway would be too great for the engines to overcome. Hence, the wheel which is the centerpoint for gravity forces against the airframe to meet the runway on a small contact patch. This gives planes the ability to take off. A moving runway opposite the planes take-off trajectory will only spin the wheels 2x faster than the planes speed. However, the thrust of the engines will still push the airframe against that small friction up the conveyor to take-off speeds.
RB does men
Joined: Jan 2003
Posts: 11,997
Likes: 0
From: Pittsburgh
No, because the friction coefficient between the fuselage and runway would be too great for the engines to overcome. Hence, the wheel which is the centerpoint for gravity forces against the airframe to meet the runway on a small contact patch. This gives planes the ability to take off. A moving runway opposite the planes take-off trajectory will only spin the wheels 2x faster than the planes speed. However, the thrust of the engines will still push the airframe against that small friction up the conveyor to take-off speeds.
edit: you keep editing so I have to keep updating this. First, gravity is pulling the plane down. Atmospheric pressure is pushing the plane down. You're thinking of physics involving power to the wheels. The wheels on a plane have no use other than to suspend the fuselage off the ground, reduced friction upon take-off, and make landing easier.
edit: you keep editing so I have to keep updating this. First, gravity is pulling the plane down. Atmospheric pressure is pushing the plane down. You're thinking of physics involving power to the wheels. The wheels on a plane have no use other than to suspend the fuselage off the ground, reduced friction upon take-off, and make landing easier.
lt, lets leave this to the engineers.
Civilian
Joined: Jun 2003
Posts: 8,407
Likes: 1
From: Miami Beach. FL
Senior Member
Joined: Feb 2003
Posts: 1,863
Likes: 0
From: pittsburgh.
wait i never read about this before. explain.
is the "theory" the an airplane with no fan-based pulpulsion is relying on a conveyer (airplane has wheels locked) to to supply its velocity
or is it just a normal airplane is sitting on a conveyer?
is the "theory" the an airplane with no fan-based pulpulsion is relying on a conveyer (airplane has wheels locked) to to supply its velocity
or is it just a normal airplane is sitting on a conveyer?
The deer had to die!
Joined: Jun 2002
Posts: 39,835
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From: Fussa, Japan
Normal take-off: brakes off, flaps down.
Senior Member
Joined: Feb 2003
Posts: 1,863
Likes: 0
From: pittsburgh.
guys think about a pontoon plane or whatever they are called. the landing gear does nothing but suspend the plane and allow to move with no (relativaly speaking) friction. you could have a plane with frictionless maglev landing gear and it wouldn't take off any faster.
The deer had to die!
Joined: Jun 2002
Posts: 39,835
Likes: 0
From: Fussa, Japan
By "any faster" are you saying that atmospheric resistance is the ultimate factor?