View Poll Results: what do you think?
Hoss is da man, no
25
33.78%
Geico's question. He knows, yes
42
56.76%
your both wrong its a vto
7
9.46%
Voters: 74. You may not vote on this poll
will the plane fly?
12-03-2005, 07:28 PM
#346
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Originally Posted by derek840378
the conveyor belt would go 100 mph in the other direction and forward movement would cease.
12-03-2005, 07:33 PM
#348
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Originally Posted by Geico266
Why are the brakes on? 
A plane has skinny tires with small contact patches, they can not keep all planes from moving, when it is making full thrust. Lets say I have an F-16 on a normal runway and the parking brake is on. Now we are leaving the parking brake on and giving full throttle and maybe afterburner. Do you think those little tires can keep the F-16 from moving? No way. The tires will slide. Could it generate enough speed to create lift with the tires sliding? I don't know, but the plane would move.
Its the same thing with our moving runway. Once the plane makes more thrust than the tires can hold, they will lose traction with the moving runway and allow the plane to gain ground speed.
12-03-2005, 07:45 PM
#349
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Sorry, but this does not make sence. The wheels are not limited in their speed in anyway. The conveyor is designed to match the speed of the wheels. There would be nothing to stop the wheels from freely spinning to any speed.
I do agree however, the plane would fly.
I do agree however, the plane would fly.
12-03-2005, 09:09 PM
#350
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Originally Posted by jrkerns
hmmm...only a week? might be worth it 
this whole debate is why I fly helos, we just beat the air into submission
this whole debate is why I fly helos, we just beat the air into submission
Wrong! Your just so ugly the earth repels you. I mean your helio.
Randy
12-03-2005, 09:23 PM
#351
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Lets go back to the boat in the river. If I apply enough power to hold 30kts up stream in a 30kts river the DRAG (on the hull) will be balanced and we have equalibreium. Same thing with a flying A/C. The proper power setting will give equalibreium and the A/C will fly with a 0 Kts ground speed.
If the there is no airspeed (drag from wind) and I only have use enough power to counter the wheel bearings, I would need very little power. Even with high friction (brakes locked) with low fuel I have slid 50K# a/c on concrete ramp. The ramp matched the wheel speed but there was enough power to overcome the friction.
If the wheels of this airplane have enough friction to hold the A/C in one spot it should not be leaving the ground anyway due to the condition of the rest of the A/C.
Now I can start to see why people are so scared to fly.
Randy
If the there is no airspeed (drag from wind) and I only have use enough power to counter the wheel bearings, I would need very little power. Even with high friction (brakes locked) with low fuel I have slid 50K# a/c on concrete ramp. The ramp matched the wheel speed but there was enough power to overcome the friction.
If the wheels of this airplane have enough friction to hold the A/C in one spot it should not be leaving the ground anyway due to the condition of the rest of the A/C.
Now I can start to see why people are so scared to fly.
Randy
12-03-2005, 09:39 PM
#352
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since this has turned into 24 pages of something that does not exist, nor likely to exist anytime soon, i would really like to know why at the end of flinstones and fred orders that side of ribs that flips his car on its side, why does he keep ordering that same order of ribs. and if hes smart why doesnt wilma order the ribs and drive so fred can ride shotgun thereby balancing out the weight so the ribs wont flip his car on the side. this has been discombobulating me for several years now
12-04-2005, 08:42 AM
#357
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I think the key to the answer lies in the little four word sentence at the end of the original post: "There is no wind." In the tradition of test-question writers throughout all of time, they've tipped you off to the answer right there with that little addendum.
That (and not my vast knowledge of aerodynamics
) is why I think it won't fly under the circumstances outlined in the question.
That (and not my vast knowledge of aerodynamics
) is why I think it won't fly under the circumstances outlined in the question.
12-04-2005, 09:19 AM
#358
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I'm late getting into this but here is my opinion.
Picture clock positions on the wheel with 6 oclock as the bottom. When power is applied the plane starts to move to the right and the wheel starts to rotate clockwise. The conveyor belt moves to the right so that 6 oclock stays on the bottom. As the airplane moves faster the conveyor moves faster to keep the 6 oclock positon on the bottom. When lift off speed occurs the plane will lift off and the wheels will not be rotating.
No doubt - it will fly.
Picture clock positions on the wheel with 6 oclock as the bottom. When power is applied the plane starts to move to the right and the wheel starts to rotate clockwise. The conveyor belt moves to the right so that 6 oclock stays on the bottom. As the airplane moves faster the conveyor moves faster to keep the 6 oclock positon on the bottom. When lift off speed occurs the plane will lift off and the wheels will not be rotating.
No doubt - it will fly.
