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Old 11-09-2006, 03:41 PM   #21 (permalink)
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Default Re: Riddle for ya

no!

no no no!

you are wrong!!!

the airplane wouldnt move at all!!!

if you set an airplane down with ZERO wind on the belt...and the airplane is NOT moving...

you apply full thorttle at the engines, the airplane starts moving relative to the ground...then the belt starts going in the opposite direction at the same rate...

THE AIRPLANE WOULDNT MOVE....given ZERO wind, there is NO LIFT being created...

the only way hybrid took off with ZERO ground speed was if the wind was blowing around 70mph in a small cessna 172 facing the airplane directly....

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13.9 @ 102.4 mph ET at 2740lbs! In a 2+2 !
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Old 11-09-2006, 03:42 PM   #22 (permalink)
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bubbleguinea: i am pretty sure you have misunderstood the situation (same as hybrid).

Draw out a force diagram, and you should understand it better.

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Old 11-09-2006, 03:43 PM   #23 (permalink)
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wait---i reject my last comment...

to put it simple ::::::::::


IF there is an outside force acting on the airplane, that is NOT TOUCHING THE BELT, the thing will move....IF THE WHEELS are the way it moves, it WONT move....

the engines are not touching the belt, so they are not affected..

the reason ASTRO doesnt move is because his feet are touching the belt...

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.040 overbore, flattops, shaved p90 head, custom intake manifold, stock cam, 621 headers, CAI, 2.5 inch mandrel bent pipe, electric fan, SDS fuel managment.

13.9 @ 102.4 mph ET at 2740lbs! In a 2+2 !
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Old 11-09-2006, 03:48 PM   #24 (permalink)
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Yep. I think ya got it!

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Old 11-09-2006, 03:49 PM   #25 (permalink)
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see, thats what i thought at first..i didnt think that the whole point of an engine is to move air In, then thrust it out...

the airplane doesnt take off cause of its ground speed, it takes off cause the engines propel it through the AIR not racing on the ground...

and the air is seperate from the belt!

ha!

__________________
==============================================
.040 overbore, flattops, shaved p90 head, custom intake manifold, stock cam, 621 headers, CAI, 2.5 inch mandrel bent pipe, electric fan, SDS fuel managment.

13.9 @ 102.4 mph ET at 2740lbs! In a 2+2 !
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Old 11-09-2006, 03:50 PM   #26 (permalink)
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LOL, Keane. If you asked then question then you can set the parameters. Otherwise everything not mentioned is fair game for the rest of us to consider.

If I get to choose what's not stated, I choose my plane and my conditions and my location. People that do not pose the question do not get a say in other initial real possible conditions.
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Old 11-09-2006, 03:52 PM   #27 (permalink)
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HOWEVER!!! it would take a hellava long runway for the airplane to take off, right? your ground speed still has to get up to the correct speed for takeoff depending on what airplane you are in...

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.040 overbore, flattops, shaved p90 head, custom intake manifold, stock cam, 621 headers, CAI, 2.5 inch mandrel bent pipe, electric fan, SDS fuel managment.

13.9 @ 102.4 mph ET at 2740lbs! In a 2+2 !
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Old 11-09-2006, 03:53 PM   #28 (permalink)
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this is too easy-- it doesnt say that the engines are running or even turned on, it doesnt say there is a pilot! of course it cant take off it is sitting stationary not in flight rediness mode. if i put my zx on a treadmill and turn on the treadmill even though my zx may get thinner and weigh less when its done ,it will not have gone anywhere. ( just to be car related) hehe!!!

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Old 11-09-2006, 03:55 PM   #29 (permalink)
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there are too many variables! agh!

but yes, in theory, it would take off.

__________________
==============================================
.040 overbore, flattops, shaved p90 head, custom intake manifold, stock cam, 621 headers, CAI, 2.5 inch mandrel bent pipe, electric fan, SDS fuel managment.

13.9 @ 102.4 mph ET at 2740lbs! In a 2+2 !
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Old 11-09-2006, 04:01 PM   #30 (permalink)
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but where would it go? ( just another riddle to wrap your brain around)

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