2006-12-13 00:51:38 · 12 answers · asked by mattoneill 2 in Science & Mathematics ➔ Physics
"There are four forces that govern an airplane at any given time: lift, weight, thrust and drag. Lift and weight oppose each other but can be disregarded in this question because all we are talking about it whether or not the airplane can accelerate in reference to the surrounding air. Once we get acceleration and airflow we can get the lift and weight but we don't need to talk about that now.
The throttle of the airplane is advanced and propeller/jet of the airplane produces thrust. We now have a forward vector, say 500 pounds of force, for a small cessna. In order for the plane to remain stationary an equal and opposite force needs to be introduced. Everybody follow? This opposite force would be drag.
2006-12-13 01:03:00 · update #1
Yes it would take off.
The thrust required does not need the traction of the wheels.
The thrust pushes the air not the wheels.
Rotation speed of the wheels has nothing to do with air speed.
2006-12-13 03:33:27 · answer #1 · answered by dyke_in_heat 4 · 0⤊ 0⤋
Well now, it isn't clear to me what you mean by "matches the speed of its wheels". If the treadmill runs forward at 80 MPH so that the plane can move forward at 80 MPH without the wheels turning, then yes, it would take off. If you mean the treadmill runs backward so that the wheels roll over the surface of the treadmill at 80 MPH while the plane stays in the same place, then no, it would not take off.
The important thing is to get air moving over the wing at 80 MPH (or whatever speed is needed for your airplane). What the wheels do is totally irrelevant.
2006-12-13 02:02:42 · answer #2 · answered by campbelp2002 7 · 0⤊ 0⤋
Planes do no longer boost up by using stress by their wheels (compared to autos). Planes boost up making use of their engines; the wheels are purely there to diminish friction. an excellent jetliner, to illustrate, generates various hundred thousand of kilos of thrust for the duration of takeoff. The drag because of the tires is a few tens of 1000's of kilos. the position is the further thrust going to bypass if no longer to boost up the plane? the in problem-free words way the plane can proceed to be table certain (with appreciate to the floor) is that if each and each and every of the thrust of the plane is offset by friction generated by the spinning tires. Any plane is able to generating so a lot extra thrust than the drag produced by the tires (or that they'd in no way be able to take off contained in the first position, for sure). each and each and every of the treadmill can to do is spin the tires speedier and when you consider that the coefficient of rolling friction is somewhat self sufficient of velocity, it truly isn't any longer going to offset adequate thrust to keep the plane table certain. I say the plane takes to the air.
2016-11-26 00:39:18 · answer #3 · answered by klitzner 4 · 0⤊ 0⤋
No. It needs to have a certain amount of forward trajectory. a plane has wings to angle them (using the flaps) against the wind resistance to cause lift. If there is no movement (obviously anything on a treadmill is moving but fixed in a location) there can be no uplift caused by the air and wings, therefor no takeoff. Interesting question tho.
2006-12-13 00:59:03 · answer #4 · answered by ryan b 2 · 1⤊ 0⤋
No
A plane takes off when air passed over the wings creating lift. On a treadmill the plane would be still relative to the air around it and there wouldn't be any lift for the plane to takeoff
2006-12-13 01:00:42 · answer #5 · answered by Nilhan 1 · 0⤊ 1⤋
Others have answered your question.
However, if the wind speed is higher than the plane's "take-off" speed, it could lift off without having to roll along the ground.
Point the plane into the wind (don't put wing, flaps or ailerons in take-off position yet; keep brakes on). Get engines revved-up to "take-off" regime.
Configure the wings, flaps and ailerons for take-off.
Plane will lift without having to roll.
If you have a flight simulator where you can control the wind speed and direction, you can try it.
If you have a real plane...
2006-12-13 01:03:51 · answer #6 · answered by Raymond 7 · 0⤊ 1⤋
No, the answer is very logical: Do you get any where running on a treadmill? No. That's because you're essentially running in place. Same deal with a plane; it's rolling in place. It won't go anywhere because it has to have air moving around it's wings--which only happens when it actually rolls somewhere
2006-12-13 01:01:29 · answer #7 · answered by loboconqueso 2 · 0⤊ 1⤋
Ok everyone..........think about this please.
If you are on a moving bus, sitting in the back, and you get up and walk to the front.....do you actually make it to the front?
Clearly the bus is moving a LOT faster than you can walk. By everyone's reasoning here the bus should pull out from under you and have you rolling backwards as soon as you stand up. Does this actually happen? No....not that I remember.
There's your answer to your question.
2006-12-13 02:02:44 · answer #8 · answered by Anonymous · 0⤊ 1⤋
no, the reason a plane flies is its airspeed, its speed relative to the air, so no it would just spin its wheels, and i dont think that you could get a treadmill big enough.
2006-12-13 00:55:25 · answer #9 · answered by Ba12348 5 · 0⤊ 1⤋
umm no! Air needs to be pulled under the wings and without moving forward this will not happen.
2006-12-13 00:55:26 · answer #10 · answered by texasbluezman 2 · 0⤊ 1⤋