thanks for posting a min. before me ian make me look like a jackass by saying what u said

AHHH, very good point.

so if it really did operate off the planes speed, the belt would start and when the plane stopped moving, the belt would stop, but then the plane would start moving again so it would start up again. I knew there was a reason I went to school for cars and not planes. :lol:

no problem buddy :wink:

i did to much thinking for one night back to need 4 speed!!

Nahh it wont take off. There will be no lift. The air has to be moving beneath the wings of the airplane to generate lift and for an airplane to take flight. There's also that whole drag thing that i think people forgot to mention. Lift has to overcome drag for the airplane to take off. There wont be either of those because the airplane is stationary on the belt however. Later induced drag doesnt matter as much, and you should be more converned with parasite drag. So plane on a conveyer belt = no lift = airplane just sits there. Even if you increase the angle of attack (up to a certain point) on the airplane that is sitting on a conveyer belt which techincally requires less speed for it to take off it still wont, because the greater the angle of attack the more induced drag you have.

It won't take off. You need the wings moving through the air to create lift and the wings are sitting still on the treadmill. And if it did work, the military would be using it already!

:werd: i guess thats why they came up with a vertical take off airplanes and not conveyer driven type take off.

QFT

At JM's place

Once the plane has some force pushing it forward, the wheels will just spin with the conveyer. If they measure the speed of the plane and apply that to the conveyer, the wheels will just be moving at an incredibl speed in the opposite direction. The only force the plane needs to overcome is the friction between the tires and the conveyer. If the wheels were directly linked to the planes jets/motor, then it would not work, but since they are not, the plane can still move forward.

~Ted

Just turn the goddamn plane around!!!!!!!!!!!!!!!!!!!!!!!!!!!

the plane will take off, the end. everyone is thinking of it as if it were a car where the WHEELS are what drives it, which would mean it would stay stationary. but thats not the case here, the plane will move forward, create lift, take off. and the wheels will probably be going 1000mph by the time it gets to takeoff speed but that doesnt matter

thats where youre all wrong.

the plane WILL move, because the wheels arent whats holding it back - they dont drive the plane. read my example on page 3 and it should make sense, im tired of this debate lol

Can you find a conveyer that can handle that weight? ;)

youre the one thats missing it.

You can ride your bike like that on a treadmill, because the wheels on your bike are what move it, they drive it forward, they push off the surface in order to move. thats why you stay stationary. With a plane, it pushes off the air by using jet engines/a propellor, so the wheels underneath have no effect on the speed of the plane.

Say the plane is going 300mph at takeoff, that would mean the conveyor is moving 300mph int he opposite direction, making the effective speed of the wheels 600mph. this is because the plane isnt driven by the wheels! youll get it eventually. :)

here, this is what a guy on anti-rice posted. He gets it.

once again I say...http://www.fullthrottlev6.com/forums...lies/gives.gif

now this **** in on FTV6 too

hi, i'm gonna cut the wheels off. bye.

it will not take off. using the example from the other board, he is saying the engine will eventually move the plane forward, but this is an impossibility. it goes against physics.

if all the conveyor did was keep pace with the wheels, then it could be true, but it doesn't say that - it says the conveyor will move at a speed equal to the plane's speed, which will keep the plane stationary. if the plane is stationary, then it cannot take off.

good thing some of you went to college. but i think some of you need to ask for a refund...

If the plane is stationary...then the conveyor wouldnt be moving.

it is a very simple concept. if you are running on a treadmill it is your feet that is keeping pace with the treadmill.
in teh case of an airplane the wheels just sit and spin freely at whatever pace the ground under them dictates.
the thrust force of the jet engines works independantly of the wheels. it will push the plane forward regardless fo what the ground beneath the plane is doing and whatever effect that ground has on the wheels.
the plane would move forward and take off as if the conveyor system wasn't there. the only effect you would see is if you tracked the wheel speeds they woudl actually be spinning at twice teh speed of the air plane during acceleration, which doesn't matter since the wheels are jsut free spinning like roller skate wheels anyway.
and as a side note, it is actually the low pressure area above a wing that creates lift, not the force under teh wing.

I am going to try it. I will give ya'll the results.

Who gives a ****? Does this plane have a hover engine? If so, its gonna take off :-D

Well that pissed me off - I typed this huge thing and then it got erased when an error occured trying to post it... so i'll type it again.


This answer all lays within one factor - how much thrust the plane is capable of generating.

Think of a conventional spaceship, if you will.

There is zero air flow, however it is able to propel itself off of the ground.

How? you ask?

Because the über ammount of thrust it is capable of generating is more than its weight in pounds on the earth.

This is however untrue with conventional airplanes. They require a magical element called lift, which allows it to 'cheat' physics and transfer current horizontal energy into vertical energy.

So theoretically - if an airplane were capable of carrying a payload great enough to propel itself into the air, without the use of lift then yes =D it will fly

in real life terms, an airplane is not capable of this. Simply because of weight and monetary issues - who would not want to use lift when you had it available to you?

If you put a SAM missile on wheels, and put it in the same scenario, I would highly doubt any of you would question one another - do you catch my drift?

There isnt any lift being generated so no

[/thread]

Thrust doesnt lift the plane :tard: