Plane poser

[pip uk]

I've bounced around quite a bit on this one and have wasted the best part of two days reading arguments from both "sides". I'm back to it can't take off as long as the treadmill matches the speed of the plane regardless of how that speed is generated.

However..............................
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[flemingcool]

No. I build plane wings for a living. There is no way a plane will go up without the lift generated by air passing rapidly over the wings.

However if you had a really really big powerful fan you could make the plane go up, but as soon as it moved out of the air from the fan it would just fall down as it would have no forward motion to generate the lift.

 

[Buckley]

 

[matt collins]

yes

the drive isn't through the wheels (as in a car), it's through the air.

So regardless of how slow or fast the conveyor belt moves it's still gonna be getting propelled forward through the air, the wheels'll just be spinning faster...

once again IT DOESN'T MATTER IF ITS ON A CONVEYOR BELT OR NOT.

it'll move forwards regardless therefore it'll take off....

It moves through the air because it's drives forward through the air, the wheels are nothing to do with it's forward motion... (hence the fact that it can fly) think about it...

8)8)8)8)

 

[gibs]

But wouldn't the power from the engines just make the treadmill move even faster in the opposite direction so the plane would not move forward like in this diagram?

A bit like a car on the rolling road test, no matter how much power you through at the wheels the rollers it is on will turn the same speed in the opposite direction making sure it does not move at all. And if a plane can't move forward it can't take off.

 

[Jam Man]

But wouldn't the power from the engines just make the treadmill move even faster in the opposite direction so the plane would not move forward like in this diagram?

A bit like a car on the rolling road test, no matter how much power you through at the wheels the rollers it is on will turn the same speed in the opposite direction making sure it does not move at all. And if a plane can't move forward it can't take off.

The wheels aren't powered....

 

[gibs]

but the plane isnt movng forward to create enough wind pressure under its wings

i know the wheels arent powered

 

[matt collins]

But it will move forward as soon as the engines start regardless of it being on a conveyor belt or not because the propulsion in a plane is nothing to do with its contact to the ground and all about the engines.

If you were to strap a jet engine to a car roof and start it, no rolling road in the world'll stop it from going forwards.

 

[gibs]

I get it now from the same debate on another forum lol.

The plane will fly