The plane moves at take off speed because it has jet engine pushing it through the air , the wheel conveyor thing is irrelevant. All that wheels on a plane do is stop it damaging its belly on take off/landing.

I shall say no more, obviously your minds are all vastly inferior to mine

and Taz Cleethorpes is in Lincolnshire (Yorkshire's nice neighbours) At work
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"I can't always believe facts I read on the web" - Charles Dickens

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the plane would take off as it would move fprward off the treadmill due to air thrust from the jet engines, in fact the treadmill is, in this case, a complete irrelevance.
The effect would be the same as a sea plane taking off against the current of moving water , something which happens all the time

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The plane moves at take off speed because it has jet engine pushing it through the air

It's not pushing it through the air, the plane is stationary, it's a bloody windless scenario, the only time it would take off is if it was all put in a wind tunnel.

Taz, I hope you have a link to educate Mr George on this, he's letting Yorkshire down.

Gunfa wrote:

So if the plane had no wheels it would still take off ?

Dose nobody on this site ever watch Mythbusters on Discovery . because that's what there sort out !!
It was on a few months back, but the same question was asked,
Even the test pilot said the plane would not take off,
But it made no differences ( The plane will take off)

This may make you think !! Its very simple but most people get wrong first time. !!

On a tank (track driven) which track is traveling the fasted - The top or the bottom !! Forwards or backwards !!

watch this it may help !!

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The plane wasnt kept static in the MB episode and the small scale test wasn't a real life situation

I watch it all the time sometimes they are spot on other not so close and this needs redoing again and fine tuning Former Mod/Member, with the most post & Chicken George Arch nemesis

bottom of tank track doesnt travel it stays still the idler wheels move along the track At work
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"I can't always believe facts I read on the web" - Charles Dickens

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can someone please explain how they think a flat conveyor belt is transferring enough energy to the planes wheels to overcome the forward thrust of the propeller/jet. At work
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"I can't always believe facts I read on the web" - Charles Dickens

winner by default of the tractor vs caravan race

its all how you perceive the word treadmill, ie running on the spot

people think treadmill is running stationary, but one you over come the friction of the wheels then you will take off just like on any other runway, the way i was looking at it and perceived the questions was that the plane was to remain stationary,

if you allow the plane to be a object that can "run off" the treadmill and the treadmill is of sufficient length for the plane to reach take off speed, then yes it will take off

Fun this isn't  Former Mod/Member, with the most post & Chicken George Arch nemesis

Your'e right Nick, the treadmill matches exactly the speed of the accelerating plane, so the plane is stationary.

Forget the wheels for a moment, they are there to allow the plane to move due to the thrust from the engine. For every force exerted there is an equal and opposite force, so on a runway this force from the engine would enable the plane to gather speed until the airflow over and under the wings allowed lift due to high pressure under the wings, this is the point calculated with speed and airflow for the pilot to pull back on the stick.

Now if the runway was swapped for a 2 mile conveyor then as it started to accelerate and the conveyor automatically compensated for the movement, so in effect the plane would stand motionless and the engine thrust would just be keeping it from going backwards in the same direction as the conveyor was travelling. There would be no airflow over or under the wings so no lift would occur.

In practice this is impossible to achieve, all anyone has done is increased the plane speed more than the conveyor speed in which case airflow becomes present enabling lift.

ing hilarious

so basically the pilot would have to keep he plane at the same speed of the 2 mile conveyor belt (treadmill is too small) to prevent backwards movement and that shows the pilot is not trying to take off Former Mod/Member, with the most post & Chicken George Arch nemesis

stand on a tread mill with roller skates on you will stay stationary with ease, someone could push you forwards with not much more effort than if you were a stationary treadmill, put a rocket on your back and you travel forwards hit the control panel and bang your nose, serves you right At work
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"I can't always believe facts I read on the web" - Charles Dickens

winner by default of the tractor vs caravan race

But the question states

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This conveyor has a control system that tracks the plane speed and tunes the speed of the conveyor to be exactly the same

but the treadmill isnt slowing you down its simply spinning the wheels  At work
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"I can't always believe facts I read on the web" - Charles Dickens

winner by default of the tractor vs caravan race