but you see this is where you are wrong, the plane IS going to move since it is not bound to the ground for forward thrust like a car or human is

 

What you fail to realize is the plane is not moving forward, its' wheels are rolling against the conveyor and that menans the plane is not moving forward, therefore there is no air going over and under the wings, and that air moving over and under the wings is what creates the lift for the plane to take off. The wheels are rolling against the conveyor and the plane is sitting still.

Have you ever walked down an escalator that is going up? How much ground are you gaining? None. Just wasting energy. Just like the plane on the conveyor.

 

But the plane will move. It's Newton's third law. For every action there is an equal and opposite reaction. In this case there are two actions. One is the conveyor belt moving opposite the direction of the aircraft. With only a slight amount of friction from the bearings in the free-spinning wheels, the airplane will pretty much stay stationary.

Now, get the prop turning. The action is that the propellor is forcing air backwards. The reaction is that the same amount of force is being applied to the airplane, moving it forward. Physics shows that if a constant force is applied to an object (ie: a constant power setting on the engine), it will accelerate until that force and the opposite force of friction are equal. So the airplane will accelerate, and will take off as it normally would. The only exception would be a small amount of added friction from the wheels spinning at twice the normal speed.

 

right there... I JUST told you that an airplaine is NOT bound to the ground for forward movement like a car or human, yet yu STILL tried to use that analogy, which you can't because planes apply thrust I relation to the air.... not the ground

 

But what you are saying by this is that airplanes get their power though friction with the ground, as humans do. That is not the case. Try walking down an escalator and you won't go anywhere. Granted. But strap a jet engine to yourself and then try it. The engine is applying force to the air, not the ground.

 

forget the wheels they have nothing to do with the flight of the plane. except to hold it off the groung and to roll where the prop pulls it.

simple

 

Omg. Seriously guys.... The plane will have no problem taking off.

has this link been posted?
http://www.youtube.com/watch?v=S377H...eature=related

 

Thank you for posting that. I've been trying to find an easy way to explain this.

 

And here should end this discussion.... before it goes full circle for the umpteenth time.

 

This thread is heading the same direction as the "How to get to Heaven when you die" thread. The only difference is that the answer to this one can be proven by simple physics and common sense.

 

It was... about 12 pages back.

 

Right you are sir. The problem is that some people are just dumb no nice way of stating it. The best part of it all is that they are the first to claim that they are an aeronautical genius yet they fail to understand basic flight principles.

 

C'mon Stealth, stop huffing the JP8 and wrap your mind around this.

They run up the engines with the wheel brakes set and chocks in place, otherwise the plane would move. Just like an airliner preparing for departure. When it taxis into position on the active and holds, the flight crew will rev the engines and then trip the brakes.

Wheels on our plane are free spinning like the wheels of a skateboard or inline skates. They are not drive wheels. So don't think of them like the wheels of a car, motorcycle, or even a bicycle. The aircraft is moving due to thrust against the surrounding air, NOT THE GROUND. The force needed to generate momentum for an aircraft does not come from contact with the ground. The wheels will spin in the same direction that the conveyor is moving and at the same speed as the conveyor. Which is entirely irrelevant since they have no bearing on the airspeed of the aircraft.

Thrust from the aircraft's engine(s) pushing against the air will propel our plane along the moving conveyor until adequate airspeed is achieved to create lift. The aircraft will rotate at the same point, just as it would on a static runway, because once again its all about airspeed, not ground speed.

Aircraft motion <-- <--
__________________________________
Conveyor motion --> -->

 

Exactly, a plane needs airspeed to take off, but it needs to travel ON THE GROUND FIRST in order to reach the optimal airspeed in order for it to take off. If it is not traveling on the ground first it will not take off. When it is traveling on a conveyor it is as if it not moving on the ground, or the air, period.

How come you guys don't get it?

 

the problem is you don't get it because your are so stubborn to accept the truth and admit you are wrong. you can try to explain yourself till your blue in the face. but you are wrong and will continue to be wrong. lay down your pride and try to understand why you continue to support the wrong awnser to this myth.

this is why I love this myth, it really helps separate the intelligent from the ignorant