Plane on a treadmill

[Sinbad]

Depends on how technical u would like to get but friction in the weels will very slightly reduce the speed

very slightly but nowhere near enough to keep the plane stationary relative to the air.

 

[Ho3n3r]

Guys you guys are defending your stupidity. First of all this hypothetical treadmill doesn't exist you made it up. So in this made up scenario the treadmill does what you want it to.

All im saying is that if your made up treadmill keeps the plane in one spot it's not going to fly. If your treadmill is a mere speedbump in the plane's way that it will merely move right over and down the runway as usual then of cause it will fly. Just like it will simply run over someone's luggage on the runway.

This made up thing is changing to fit your argument

I saw the light now, by thinking properly. The engine thrust works against air. The treadmill works against the wheels, which don't do anything in terms of forward motion. Hence, all the huge treadmill would do, no matter how fast it's going, is increasing the rate that the wheels will be rotating.

 

[LazyLion]

Guys you guys are defending your stupidity. First of all this hypothetical treadmill doesn't exist you made it up. So in this made up scenario the treadmill does what you want it to.

All im saying is that if your made up treadmill keeps the plane in one spot it's not going to fly. If your treadmill is a mere speedbump in the plane's way that it will merely move right over and down the runway as usual then of cause it will fly. Just like it will simply run over someone's luggage on the runway.

This made up thing is changing to fit your argument

A treadmill is a treadmill, everybody knows what they are. Go to the gym to see how they work.
Whether it's wheels or feet, they run in the opposite direction.
But in this scenario they are irrelevant to the plane's operation.

Watch the guy from Mythbusters prove it...

[video=youtube;YORCk1BN7QY]https://www.youtube.com/watch?v=YORCk1BN7QY[/video]

 

[Vegeta]

But a treadmill can't do that.
It can only change how fast the wheels spin.
The forward speed of the plane remains unchanged.

Lmao it's a made-up treadmill! In my world treadmills are powered by an electronic motor. It runs at a certain speed in the opposite direction than the one im facing, for me to stay on the treadmill i need to match that speed going forward. If the plane matches the speed it will stay on the treadmill just like me, if it exceeds the speed it will roll off it to the front, if it moves slower it will roll of to the rear. Just like me.

Now for the plane to fly it needs to leave the treadmill, so why introduce it to the scenario? Unless your imaginary treadmill works differently, if it's the same as mine the result will be the same.

Now i don't know how your imaginary one works you see...

 

[Sinbad]

Lmao it's a made-up treadmill! In my world treadmills are powered by an electronic motor. It runs at a certain speed in the opposite direction than the one im facing, for me to stay on the treadmill i need to match that speed going forward. If the plane matches the speed it will stay on the treadmill just like me, if it exceeds the speed it will roll off it to the front, if it moves slower it will roll of to the rear. Just like me.

Now for the plane to fly it needs to leave the treadmill, so why introduce it to the scenario? Unless your imaginary treadmill works differently, if it's the same as mine the result will be the same.

Now i don't know hoe your imaginary one works you see...

Please explain the nature of the force exerted on the plane by the treadmill.

 

[saor]

Lmao it's a made-up treadmill! In my world treadmills are powered by an electronic motor. It runs at a certain speed in the opposite direction than the one im facing, for me to stay on the treadmill i need to match that speed going forward. If the plane matches the speed it will stay on the treadmill just like me, if it exceeds the speed it will roll off it to the front, if it moves slower it will roll of to the rear. Just like me.

You're not seeing the difference between your legs and the planes engines.

 

[Vegeta]

Please explain the nature of the force exerted on the plane by the treadmill.

Why? It needs to leave it and move to fly!

 

[nakedpeanut]

Hahahaha I honestly can't believe people battle to understand this concept!

Imagine a car (in neutral) attached to a winch on the same treadmill.
The winch, similar to a planes propeller applies a force on the vehicle separate to that of the treadmill on the FREE spinning wheels and moves the vehicle forwards!

In the case of the plane, it will move forward, resulting in moving air over the wings which creates lift..
Crappy drawing:

 

[Vegeta]

You're not seeing the difference between your legs and the planes engines.

And you dont understand lift. It needs lift which require it to move through air ie away from the treadmill

 

[Sinbad]

Why? It needs to leave it and move to fly!

Explain how the treadmill is stopping the plane moving

 

[LazyLion]

Lmao it's a made-up treadmill! In my world treadmills are powered by an electronic motor. It runs at a certain speed in the opposite direction than the one im facing, for me to stay on the treadmill i need to match that speed going forward. If the plane matches the speed it will stay on the treadmill just like me, if it exceeds the speed it will roll off it to the front, if it moves slower it will roll of to the rear. Just like me.

Now for the plane to fly it needs to leave the treadmill, so why introduce it to the scenario? Unless your imaginary treadmill works differently, if it's the same as mine the result will be the same.

Now i don't know how your imaginary one works you see...

The treadmill is introduced to the scenario in order to test whether people can understand basic aeronautical physics.

Obviously some can't.

 

[Vegeta]

The treadmill is introduced to the scenario in order to test whether people can understand basic aeronautical physics.

Obviously some can't.

Lmao to fly it needs to leave the treadmill do you agree?

 

[Ho3n3r]

Lmao it's a made-up treadmill! In my world treadmills are powered by an electronic motor. It runs at a certain speed in the opposite direction than the one im facing, for me to stay on the treadmill i need to match that speed going forward. If the plane matches the speed it will stay on the treadmill just like me, if it exceeds the speed it will roll off it to the front, if it moves slower it will roll of to the rear. Just like me.

Now for the plane to fly it needs to leave the treadmill, so why introduce it to the scenario? Unless your imaginary treadmill works differently, if it's the same as mine the result will be the same.

Now i don't know how your imaginary one works you see...

How is the treadmill interrupting the force of the thrust pushing the air through the engine and into the stationary air behind, which is the only thing creating the force to move it forward?

 

[FNfal]

No Just no , why do you think a dyno needs a fan when you test a car on it .(same principle )
There will be very little air moving over the wing to give a low pressure under the wing to give you lift .
Now if you put a huge fan just before the treadmill the plane would fly .

 

[saor]

And you dont understand lift. It needs lift which require it to move through air ie away from the treadmill

So a plane that moves forward by extending a 100mpole into a fixed wall: How does a treadmill affect it?

 

[Cray]

No Just no , why do you think a dyno needs a fan when you test a car on it .(same principle )
There will be very little air moving over the wing to give a low pressure under the wing to give you lift .

Cars don't have jet engines, the thrust in a car is applied to the wheels, the thrust from a plane is applied to the atmosphere.

 

[LazyLion]

Lmao to fly it needs to leave the treadmill do you agree?

Sure, it will use it's engine to fly, not the wheels.

 

[Vegeta]

So a plane that moves forward by extending a 100mpole into a fixed wall: How does a treadmill affect it?

I don't even understand the level on nonsense you're spewing. Just tell me if you agree, the plane needs to leave the treadmill to fly do you agree?

 

[Vegeta]

Sure, it will use it's engine to fly, not the wheels.

So now I want to ask you this, what's the point of bringing in a made up treadmill instead of for example a dead dog lying on the runway?

 

[Sinbad]

I don't even understand the level on nonsense you're spewing. Just tell me if you agree, the plane needs to leave the treadmill to fly do you agree?

You haven't explained how the treadmill stops the plane moving.