Airplane on a Conveyor conundrum

[KERRSURF]

well we have about ayear to try and drum some support up !!

and break and fix things....and then break them and then fix them...

[openback]

ok my two penneth, just read whole thread, after having gone boggle eyed, flipped between no,yes, no, have re read the question numerous times and have just voted yes as aircraft speed is measured against a fixed point on the ground the belt will just double the wheel speed it may take abit longer to reach take off speed but once the aircraft has finished accelerating the the aircraft and belt speeds will stabilize in equilibrium, ie a/c going fwd at say200mph belt going bacwards at 200mph, wheels doing 400mph,( this may well be outside the wheel bearing/tyre design limits causing them to fail, but thats another thing!) but if the belts the length of the usual take off run it should get fwd movement = airspeed = lift.
i am now going to lay down in a darkend room.

[yoshie]

and break and fix things....and then break them and then fix them...

you just happen to be a lot busier doing one of the above the now eh?

[KERRSURF]

you just happen to be a lot busier doing one of the above the now eh?

just remember to get my bolts mate!

[yoshie]

ok my two penneth, just read whole thread, after having gone boggle eyed, flipped between no,yes, no, have re read the question numerous times and have just voted yes as aircraft speed is measured against a fixed point on the ground the belt will just double the wheel speed it may take abit longer to reach take off speed but once the aircraft has finished accelerating the the aircraft and belt speeds will stabilize in equilibrium, ie a/c going fwd at say200mph belt going bacwards at 200mph, wheels doing 400mph,( this may well be outside the wheel bearing/tyre design limits causing them to fail, but thats another thing!) but if the belts the length of the usual take off run it should get fwd movement = airspeed = lift.
i am now going to lay down in a darkend room.

welcome to the correct club

edit Dam I said I was finished

[darkdezigns]

welcome to the incorrect club

edit Dam I said I was finished

!

[gwh200]

welcome to the (theoretically wrong but actually)correct club

edit Dam I said I was finished

.

[KERRSURF]

welcome to the correct club

edit Damn I said I was finished

sp.

[Slugsie]

I almost hesitate to bring this up but...



... I just watched the Mythbusters episode.

It will come as no surprise to 13 of you that both the test model aircraft, and the full sized aircraft not only took off, but did so with no problems what so ever.

To give you an idea of how they did it:

They firstly measured the take-off velocity of the aircraft in still air. They also measured the take off distance.

They then placed the aircraft on top of a tarpaulin. The tarpaulin was attached to a truck. At the command, the truck speeds off in one direction accelerating up to the take off speed of the aircraft, whilst the aircraft accelerates off in the other direction. Couple of seconds later, the aircraft is airbourne.

[BUSHWHACKER]

http://www.youtube.com/watch?v=-w-DPOTsdYI

[johnd]

dudes and dudettes this is so done to death .
another site i go on ..
http://ar15.com/forums/topic.html?b=1&f=5&t=649020

this is a world wide question

[openback]

mythbusters link is a bit of a tease, this home made one would have saved me some brain ache.

http://www.youtube.com/watch?v=-EopVDgSPAk

[MattF]

They then placed the aircraft on top of a tarpaulin. The tarpaulin was attached to a truck. At the command, the truck speeds off in one direction accelerating up to the take off speed of the aircraft, whilst the aircraft accelerates off in the other direction. Couple of seconds later, the aircraft is airbourne.

And how does being sat on top of, (with relation to the aircraft), a static tarpaulin compare to a conveyor belt?

[yoshie]

I feel both and

watch the it will fly count sail past 13 now

and too the original 13 once again congrats

and now honest I am finished but then I suppose so is the thread

[Karma Supra]

Why did I suddenly get a flash back to Gladiators and "the travelator"?