There's now way they were pulling the tarp at the same speed as the airplane. I call them busted.

 

can you guys not accept it? geez... and my dad always told me i was hardheaded....

ok...here's an idea... give me PROOF that it won't work...i just gave you proof that it WILL work.......

 

I think most people know that the thrust that comes from the turbines, propellers, etc, are what makes the plane move. Not the wheels. The part that they don't get is that it depends on how long the "runway" is if the plane takes off or not. If a plane doesn't have enough wind speed under the wings, it simply won't lift off.

 

The proof is on the flight line. I see it every day.

 

i didn't read all the post
but
The propeler provides thrust for forward movement, not traction at the wheels. it does not matter which way the wheels are spinning!

 

nowhere in the original myth did it state the plane was strapped in place, anyone that assumes this, is a fool

 

It's the same as if it were rolling against a conveyor, duh. Sitting still with the engines at full throttle.

Some of you have no perception.

 

On the one hand, if the plane can not gain ground speed, there will be no lift and thus no takeoff.

On the other hand, the planes motor, or turbine (some form of propulsion damnit!) is not attached to the wheels of the plane as they are on a car. Regardless of the speed of the rolling runway (conveyor belt) the plane's thrust would drive the plane forward, and the planes wheels would simply turn against the belt...

Hmmm, logic tells me no.

 

here lies the problem... an airplane producing full trust is not going to sit still

 

Wrong. Ground speed has no affect on an aircraft's ability to fly. That why in flight, everything is based on airspeed, not groundspeed. For example, a Cessna 172 rotates at ~75 knots. If that airplane were sitting still on the ground without the engine running, and it encountered a 75 knot headwind (ei. hurricane) it could lift off the ground. The airspeed would be 75, but the ground speed would be zero. This is purely hypothetical, btw. There are a lot more things to factor in.

 

Only the wheels will be rolling against the conveyor, thus it will not me moving forward, just as if it were tethered and the wheels not rolling. In actuality, the turbine is creating thrust but the plane is sitting still.

 

Yet the plane has to gain speed on the ground prior to creating enough lift to lift off from the ground and become airborne.

 

Here's another way of looking at it. Say you have a car on a dyno. You've got the car up to 75 mph. The dyno is also turning at 75 mph. Then you flip on the jet engine that you have attached to the roof (yes, every car should have a jet engine attached). What's gonna happen? The dyno will not spin faster. The straps will probably break and the car will accelerate forward. That is because the jet is not providing acceleration through friction with the ground, rahter than through friction with the air.

 

the plane can and will gain speed regardless, the speed of the treadmill. it could be 4 times that of the plane, it will have no effect on the outcome

 

But the plane will not lift off, redardless, since it isn't moving. How do you think they do an engine test for a jet on the flight line?