Airplane on a Conveyor Belt...

[100Coogn]

This argument is mind boggling and technically I think both sides are right in some way.

The aircraft needs air over the wings in order to takeoff, yes.

But in order for the air to move over the wings, the aircraft needs to generate forward movement (rolling forward on wheels).

I imagine if the engine and prop was dragging the plane along by the wheels, and a conveyor belt was preventing forward motion of those wheels, it would then not generate enough airflow over the wings to achieve flight.

I wonder what the Wright Brothers would say.

They would 'probably say 'don't be a handsomehunk people.  The wings need to move through the air for lift.  And I would agree.
Look closely at the Myth Busters test. They were not pulling that belt fast enough to equate the planes torque.  The plane still
had positve force. 
Therefore I call bubkiss on the whole experiment..

Coogan

[Karnak]

They would 'probably say 'don't be a handsomehunk people.  The wings need to move through the air for lift.  And I would agree.
Look closely at the Myth Busters test. They were not pulling that belt fast enough to equate the planes torque.  The plane still
had positve force. 
Therefore I call bubkiss on the whole experiment..

Coogan

It isn't possible for the belt to move fast enough.

[100Coogn]

It isn't possible for the belt to move fast enough.

Maybe not that thing they made.  I'm pretty sure someone could build something that could go around a couple of gears and drums with a belt, you know,
like a real conveyor belt, that could match take-off speed.  I have no idea with that plane what the take-off speed is.
To me that was a cheesy experiment.

Coogan
 

[Karnak]

Maybe not that thing they made.  I'm pretty sure someone could build something that could go around a couple of gears and drums with a belt, you know,
like a real conveyor belt, that could match take-off speed.  I have no idea with that plane what the take-off speed is.
To me that was a cheesy experiment.

Coogan
 

The conveyor belt would need to move fast enough to cause the bearings in the airplane's wheels to fail and seize.  Merely moving at the airplane's takeoff speed would simply result in the wheels rolling at twice the takeoff speed when the plane took off.

Remember, the wheels are not moving the plane.  The wheels are simply along for the ride as the plane moves itself through the air.  Because it is the plane moving itself through the air it doesn't matter what the ground is doing, at least along the direction the airplane is traveling through the air.  Airspeed is what matters for takeoff and flight, not ground speed.

[100Coogn]

The conveyor belt would need to move fast enough to cause the bearings in the airplane's wheels to fail and seize.  Merely moving at the airplane's takeoff speed would simply result in the wheels rolling at twice the takeoff speed when the plane took off.

Remember, the wheels are not moving the plane.  The wheels are simply along for the ride as the plane moves itself through the air.  Because it is the plane moving itself through the air it doesn't matter what the ground is doing, at least along the direction the airplane is traveling through the air.  Airspeed is what matters for takeoff and flight, not ground speed.

I agree.  Airspeed is what matters.  So if setting stationary on a conveyor belt=no air speed, so no take-off.
(I'm intrigued by this stuff, whether it works or not.    )

Coogan

[NatCigg]

The fact the belt did not rip shows how little force is put to the conveyor from the plane.  Not to mention the airspeed gained would create lift.

[quig]

The conveyor belt would need to move fast enough to cause the bearings in the airplane's wheels to fail and seize.  Merely moving at the airplane's takeoff speed would simply result in the wheels rolling at twice the takeoff speed when the plane took off.

It wouldn't have to go so fast that the wheel bearing seized. There is a point where the propeller is not going to spin any faster at max RMPs. At that point things level out. The conveyor only needs to spin fast enough to hit this point and then the plane will just sit there and make a lot of noise.

[Mar]

It wouldn't have to go so fast that the wheel bearing seized. There is a point where the propeller is not going to spin any faster at max RMPs. At that point things level out. The conveyor only needs to spin fast enough to hit this point and then the plane will just sit there and make a lot of noise.

What?

[GScholz]

This is a great question to spread around the internet to profile people for the great culling.

[100Coogn]

I'm 'Murican, so I'm going to say MPH.

Say the plane needs 85PMH to take off.  The belt is moving at that same speed.  Plane no move.
The plane can not take off.

Coogan

[Mar]

I'm 'Murican, so I'm going to say MPH.

Say the plane needs 85PMH to take off.  The belt is moving at that same speed.  Plane no move.
The plane can not take off.

Coogan

Huh?

[Mar]

Guys, what is stopping the plane from moving? Just answer that simple question.

[100Coogn]

Huh?

Engrish.
Get with the program. 

Coogan

[100Coogn]

Guys, what is stopping the plane from moving? Just answer that simple question.

The "Conveyor Belt"  Let's read together.

Coogan

[icepac]

This is the topic that attracts morons.

Oops!