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Old 07-19-2009, 01:13 PM   #11
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Hey it's true! That's probably why I'm where I'm at!!!
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Old 07-19-2009, 01:17 PM   #12
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Wrong. It doesn't matter what the wheels do. The wheels could be spinning at 1000 mph and it doesn't matter. The thrust of the engine will push it forward. Now if you have a 10,000 foot conveyor, the plane will take off.
Its the combination of the thrust of the engine (jets moving air which goes over the wings) and the air velocity at 175mph (air moving over the wings) COMBINED that moves the plane. Yes if the engine jets were big enough, the plane would move w/o the air velocity of the moving plane. Its like how do you turn a bike fast. You do A PLUS B. Countersteer and lean. Can you still turn w/o leaning? Yes, but is takes much more force.
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Old 07-19-2009, 01:19 PM   #13
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hahaha! You're right! Because the engines pull/push the plane though the air. The wheels will just turn. Ha all of you guys are right, I am a dumbass and don't deserve to live!!! man, I got stuck on forward motion but the wheels don't dictate that on a plane, duh!
Exactly!

Don't feel bad.... This thread was posted on just about every forum on the net about a year or so ago, and you would absolutely not believe how many people just simply can't grasp such a simple concept, even after you explain it in full. So hey at least you got it right away!
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Old 07-19-2009, 01:20 PM   #14
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But again the real question is if the rolling equipment will be able to withstand the conveyor belt at 350 mph? Because if it fails, that plane is gonna burn in a firey crash
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Old 07-19-2009, 01:20 PM   #15
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Are you guys crazy? Airplanes fly because of lift, the engines create forward motion, forward motion cause air movement around wings which creates lift, no forward motion, no lift, no lift, no fly! Basic.
The jets pull air over the wings in addition to the forward motion.
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Old 07-19-2009, 01:21 PM   #16
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A plane is standing on a runway that can move (some sort of band conveyer like a treadmill). The plane moves in one direction, while the conveyer moves in the opposite direction.
If by "moving" it means moving in relation to the Earth, not just in relation to the belt, then yes eventually it will take off. Doesn't fucking matter what the belt is doing --- All that matters is airspeed over the wings. Get enough of that, and it will lift off, even if the engines are dead.

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Old 07-19-2009, 01:23 PM   #17
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Its the combination of the thrust of the engine (jets moving air which goes over the wings) and the air velocity at 175mph (air moving over the wings) COMBINED that moves the plane. Yes if the engine jets were big enough, the plane would move w/o the air velocity of the moving plane.
Huh??

I don't have the slightest clue what you're trying to say....

But the plane doesn't give a f**k about thrust, all it needs is air moving across the wings. If the plane is sitting still and there is a 175 mph headwind, it will lift up and take off. Engines don't move any air across the wings, all they do it push it forward

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The jets pull air over the wings in addition to the forward motion.
No, they don't
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Old 07-19-2009, 01:29 PM   #18
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Are you guys crazy? Airplanes fly because of lift, the engines create forward motion, forward motion cause air movement around wings which creates lift, no forward motion, no lift, no lift, no fly! Basic.
It still has forward motion. You could run the tread mill in reverse and still take off. You don't even need wheels on a plane.



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Old 07-19-2009, 01:31 PM   #19
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Originally Posted by TIGGER View Post
hahaha! You're right! Because the engines pull/push the plane though the air. The wheels will just turn. Ha all of you guys are right, I am a dumbass and don't deserve to live!!! man, I got stuck on forward motion but the wheels don't dictate that on a plane, duh!
The wheels don't matter at all ( unless they're cemented into place). What about planes with floats or planes with skis?

I haven't used this gif in a year



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Old 07-19-2009, 01:38 PM   #20
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Huh??

I don't have the slightest clue what you're trying to say....

But the plane doesn't give a f**k about thrust, all it needs is air moving across the wings. If the plane is sitting still and there is a 175 mph headwind, it will lift up and take off. Engines don't move any air across the wings, all they do it push it forward



No, they don't
Turbines pull air over the wings which aids in lift. How much I don't know. I agree the main thing the turbine does is create a low pressure in front of the plane which causes the rear air pressure to push the plane forward. But, the force of air backward acts on the wings the same way the moving plane air acts on the wings.

I'm sure if you reached the 175mph and stopped the engines the plane wouldn't lift. You would have to increase speed. But yes air moving across the wings is the only thing lifting the plane, but we are discussing where that air is coming from.
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