haha, no, look through the windshield, you can see the yellow. tee hee
The problem with this is that the belt will keep going faster. The wheels dont get the chance to go 2x as fast as the belt, thus it still wont move. Consider my explination to avoid this. Basically use the rope analogy, but throw in the idea of the wheels just sliding over the ground, regardless of how fast they spin.
Thats almost exactly what i explained to rubicant in the office here.
I said if i were on rollerskates pulling myself forward on a rope i would go forward because my arms are moving me forward not my legs. If i were to try to skate with my legs on a treadmill i would remain stationary because the power from my legs is getting cancelled out by the treadmill.
As long as my arms (jet engine) are pulling on the rope (air) i will mov forward regardless of how fast the wheels are spinning.
Ok that works. I was assuming the conveyor had a max speed equal to that of the plane. If the belt is just matching wheel speed no matter what, then I see what you are saying.
P.S. I have done nothing this afternoon.
I figured I would allow some people to keep their diginity. I mean, I already lost mine today, so that should be enough
then you explained the question like a dumbass. i sincerley apologize i dont measure up to your “standards of superior intellect”. maybe if you werent such an elitist engineering genius you could explain things in a more clear and concise manner that would facilitate us to understand what you were asking. :bloated:
there were quite a few other people here who didnt understand the original question either, and had the exact same question that i did. so if you are going to be a dick about it to me and try to single me out, you can go fuck yourself. straight up. :shrug:
i was “singling out” no one. you were all being real dumb.
To be fair, it’s not the most solid concept to grasp with such a crapily worded question. And it’s not like asking 2+X=4, solve for X.
i do not think the question is poorly worded. and the answer is x=3
I wasn’t being dumb. I think my first post in this thread explained it fairly. (last post on page 4)
Some day I hope to be as intelligent as you.:rolljerk:
It didnt though, you didnt account for the belt moving just as fast as the wheels all the time. the wheels will not ever double the speed of the belt because the belt will always match their speed. read my above posts regarding the wheels just sliding on the belt.
dumb, all of you!
Thanks, New Man.
Anyone who says it doesn’t take off needs to be booted in the fucking dome
The plane takes off. The only effect the treadmill has ON THE PLANE is whatever minimal resistance the free spinning wheels can put on it.
If speed of treadmill = Plane speed then wheel speed (w) = 2p where p = plane speed
If speed of treadmill = wheel speed then wheel speed (w) = 2pw
This argument really gets interesting when people who don’t think it’ll take off figure out their initial reasons are 100% wrong and they start talking about the wheels exploding & bearing failure
if the plane is allowed to move forward, it will take off
if its not allowed to move forward…, see below
it wont save ANY SPACE AT ALL
the way to save space while taking off is to shove the plane up to speed …
having a treadmill that runs opposite of the way the plane wants to move will cause drag in the wheels, and require a longer take off
as long as the plane is free to move its normal direction on takeoff, it will leave the ground only when its forward motion is enough to lift the plane
no plane will ever take off w/ full power to the engine and no ground speed, as the prop does not move enough air over the wing to generate such lift
using the specs i could find for the Cessna T-37B , and applying the general knowledge i know about stunt planes, since the t37 weight 6k+, it would need 12k lb’s of thrust to leave the runway while stationary
it only has 2500 lbs of thrust … and thats a BIG ass jump in power
meh. if anybody who actually reads can’t figure it out by now, they are indeed stupid. It is sort of hard to explain how physics stuff works to people who can barely grasp the English language.
*not trying to argue.
first off… planes dont STAND on the runway… we talkin on its tail piece???
they say “Get on the plane” Fuck that! I’m going IN the plane!
don’t take it so literaly.
It is not going anywhere, there needs to be a certain amount of air passed under the wing to create a Venturi effect and provide lift. The engines could go full thrust and the conveyor could keep it stationary and the plane will just sit there and probably overheat. I’m sure somebody probably already said this but i am just too goddamn impatient to read 3 pages of replies.