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07-20-2009, 03:48 PM
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Aspiring Rapper
Join Date: Nov 2008
Location: Halifax, NS
Moto: '12 CB1000R
Posts: 3,569
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No. Just because he is in the air force does not mean he controls the laws of physics.
The plane will absolutely positively move forward and take off. The only purpose the wheels serve us to keep the belly of the plane from rubbing on the ground. The turbine or prop will produce forward motion through the air. The wheels will just spin uselessly as wheels do not move a plane. Once enough forward momentum is reached by this plane moving forward (not stationary) then lift will be created and the plane will take off. In fact, if the plane originally could take off on 100 feet of runway, it would only need 100 feet of conveyor. |
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07-20-2009, 03:52 PM
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#2 | |
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AMA Supersport
Join Date: Nov 2008
Location: Sydney
Moto: '98 Honda Fireblade
Posts: 3,696
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07-20-2009, 03:55 PM
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#3 | |
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Soul Man
Join Date: Nov 2008
Location: Everywhere, all the time.
Moto: '0000 Custom Turbo Cross (with jet kit).
Posts: 6,481
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Quote:
 JC
__________________
The way things are going, they're gonna crucify me. |
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07-20-2009, 03:56 PM
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#4 | |
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AMA Supersport
Join Date: Nov 2008
Location: Sydney
Moto: '98 Honda Fireblade
Posts: 3,696
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07-20-2009, 04:00 PM
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#5 | |
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Official Thread Killer
Join Date: Nov 2008
Posts: 554
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Quote:
When a fighter jet lines up at the end of the runway, it typically runs its engines up to full speed before releasing brakes. The speed of the wheels on the jet is equal to the speed of the runway below it (0 mph). The air coming out of the back of the engine is over 1000 mph, much faster than the aircraft needs to get airborne. If the myth is right, the aircraft should lift off! And here is the argument you typically hear: But wait, the brakes are set!!! That is why it doesn’t work! So the second the pilot lets go of the brakes, the jet gets airborne? No, it gets airborne when the speed through the air (not over the ground) reaches the point to cause enough lift over the wings to overcome gravity (the weight of the jet.) The compressibility of air and temperature differences result in vast differences in one if you try to hold the other constant. Last edited by Lucky3623; 07-20-2009 at 04:06 PM.. |
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07-20-2009, 04:26 PM
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#6 |
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Crotch Rocket Curmudgeon
Join Date: Nov 2008
Location: Here to integrity
Moto: Li'l red baby Ninja
Posts: 7,482
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Gentlemen: Since the plane is on a treadmill, it is not being forced through the air, creating an artificial headwind. The only thrust to create speed differential with the surrounding air is the plane's thrust.
If the plane is of a design as to have enough thrust to get airborne essentially with no headwind (at least none induced by moving the plane forward, which the treadmill assures cannot happen), and by its own thrust alone, then it will take off. The freewheel on the tires is exactly doubled, as has already been said. I believe the frictional losses, if within the spec of the wheels, is probably relatively inconsequential.
__________________
Insert free thought here. |
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07-20-2009, 04:49 PM
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#7 | |
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SFL Expatriate #2
Join Date: Nov 2008
Location: Raleigh, NC
Moto: CBR1000
Posts: 2,043
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07-20-2009, 04:49 PM
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#8 | |
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Custom User Title
 
Join Date: Nov 2008
Location: Central NY
Moto: 2003 SV650S
Posts: 14,959
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Quote:
Duh. Sheesh.
__________________
I'm not "fat." I'm "Enlarged to show texture." Handle every stressful situation like a DOG: If you can't eat it or hump it, pi$$ on it & walk away. |
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07-20-2009, 07:18 PM
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#9 | |
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Hopster
Join Date: Nov 2008
Location: Austin, TX
Moto: 2009 Buell 1125R
Posts: 4,743
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Quote:
I'll be damned if I'm leaving Scotch & cookies for you this Christmas Eve. ps. Is this argument still going on? Really people... someone just needs to ask NASA for a computer sim because this is wasting far too many peoples' time and brain power.
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“Well, obviously before; after was all gendarmes and dick stitches.” |
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07-20-2009, 07:27 PM
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#10 | |
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AMA Supersport
Join Date: Nov 2008
Location: Halifax, Nova Scotia
Posts: 2,698
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Quote:
James
__________________
"Bust a nut inside your eye, to show you where I come from" "f youre horny, lets do it, Ride it, my pony, My saddles waitin, Come and jump on it, If youre horny, lets do it" "I'm not a playa I just fuck a lot" "Round two, I'm down to Do, what it takes to make you Understand I'm the Candyman And I melt in your mouth, not in your hands Hard as rock, yes I'm no sucka The boots I knock make me one bad mutha" |
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