Plane on conveyor... Will it ever take off?

umairhashmi · 07-19-2009, 12:43 PM

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. This conveyer has a control system that tracks the plane speed and tunes the speed of the conveyer to be exactly the same (but in opposite direction).

The question is:

Will the plane take off or not? Will it be able to run up and take off?

101lifts2 · 07-19-2009, 12:48 PM

Oh Jesus not this again....the answer is no, because at the takeoff speed of 175mph the air moving under the wings aids the air produced by the jets.

thirdgenlxi · 07-19-2009, 12:49 PM

Quote:

Originally Posted by 101lifts2

Oh Jesus not this again....the answer is no, because at the takeoff speed of 175mph the air moving under the wings aids the air produced by the jets.

Huh??

derf · 07-19-2009, 12:50 PM

Yes, because the wheels do not drive the plane, the jet engines do so they will move the plane through the air (even if the wheels are on the ground).

However you will probably encounter some parasidic drag from the wheels rolling resistance, and possibly tire/wheel bearing/ undercarriage failure from teh extra heat and or forces from the wheels having to spin at twice their normal speed.

DIMford · 07-19-2009, 12:54 PM

Will this ever die... please die...

Amber Lamps · 07-19-2009, 12:57 PM

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.

Rider · 07-19-2009, 01:00 PM

Quote:

Originally Posted by 101lifts2

Oh Jesus not this again....the answer is no, because at the takeoff speed of 175mph the air moving under the wings aids the air produced by the jets.

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.

thirdgenlxi · 07-19-2009, 01:00 PM

Quote:

Originally Posted by TIGGER

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 is very basic indeed, just gotta think about what makes an airplane move... but you're still incorrect, lol

And yes, will this thread ever die !!!!

Amber Lamps · 07-19-2009, 01:04 PM

Quote:

Originally Posted by thirdgenlxi

It is very basic indeed, just gotta think about what makes an airplane move... but you're still incorrect, lol

And yes, will this thread ever die !!!!

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!

derf · 07-19-2009, 01:11 PM

Quote:

Originally Posted by TIGGER

hI am a dumbass and don't deserve to live!!!

Quoted

07-19-2009, 12:43 PM	#1
umairhashmi Broward Motorsports Join Date: Jan 2009 Location: Boynton Beach,Florida Moto: 2006 Gsx1300R Hayabusa Posts: 61	Plane on conveyor... Will it ever take off? 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. This conveyer has a control system that tracks the plane speed and tunes the speed of the conveyer to be exactly the same (but in opposite direction). The question is: Will the plane take off or not? Will it be able to run up and take off? __________________ Broward Motorsports of West Palm Beach For all New and Used Sportbikes, Cruisers, Dirtbikes, Atvs, Personal Watercrafts and Sportboats at the best prices. 954-579-9571

07-19-2009, 12:48 PM	#2
101lifts2 WSB Champion Join Date: Nov 2008 Location: Anaheim, CA Moto: 2009 Kawi ZX6R Posts: 5,570	Oh Jesus not this again....the answer is no, because at the takeoff speed of 175mph the air moving under the wings aids the air produced by the jets. __________________ Train Hard Ron Paul - 2012 Mark of Excellence GM

07-19-2009, 12:50 PM	#4
derf token jewboy Join Date: Nov 2008 Moto: CBR 900, KLR ugly ass duckling, Gas Man Posts: 10,799	Yes, because the wheels do not drive the plane, the jet engines do so they will move the plane through the air (even if the wheels are on the ground). However you will probably encounter some parasidic drag from the wheels rolling resistance, and possibly tire/wheel bearing/ undercarriage failure from teh extra heat and or forces from the wheels having to spin at twice their normal speed. __________________

07-19-2009, 12:54 PM	#5
DIMford Nothing beats the RWB Join Date: Mar 2008 Location: Norfolk, Va Moto: 07 Honda Interceptor Posts: 305	Will this ever die... please die... __________________ The Road is a beautiful but dangerous mistress. She'll taunt and tease you with wonderful curves and glorious heights till you lose all control. Then leave you broken and bleeding to tease the next man.

07-19-2009, 12:57 PM	#6
Amber Lamps Moto GP Star Join Date: Mar 2008 Posts: 14,556	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.