so why havent all the major air ports caught onto this? your sitting on a goldmine newman
wait wait wait… who’s sellin’ penis mightiers?
To me, the question sounds like it’s asking if a plane which has it’s engines at full throttle can take off from a standstill. That is how I am interpreting the question.
When they ask, "This conveyer has a control system that tracks the plane’s wheel speed and tunes the speed of the conveyer to be exactly the same but in the opposite direction…
I take that to say that when the plane moves faster, the faster the ground under it moves the opposite way, thus the plane is stationary remains stationary.
NO! OMG. Look. If the wheel speed is completely matched, then it will in essence just drag the wheels across the treadmill. The plane will move forward regardless of what the wheels are doing.
then this whole question is retarded. The way this question was originally explained was very misleading, as zerodaze said, it sounded like the plane would just sit there with the wheels spinning at 150mph for ex. and the treadmill holding it in place, and then seeing if the plane could take off from that.
thats exactly how i interpurreted this and why it didnt make sense
I want to see one of you naysayers go fucking try this and cry when the plane still takes off.
yeah, rubicant, you are confused. just because wheel speed is matched doesnt mean the plane isnt going to move…
here is another toughie. if you eat a kid with cancer, will you get sick?
settle down please
it is understood that the thrust will move the plane forward. the question is being interperated as it is stationary.
Heres another example. Its like if the pilot somehow where to lock up the wheels completely, then throw it into full thrust and see if it would take off. If the plane overcame to coefficient of friction of rubber on asphalt, which it can and will, then it will move forwards with the wheels locked. it will eventually reach a speed at which it will lift off at, and then it will.
im still alive?
Sorry, its just so painfully obvious to me, and I hurts that other people cant see it.
My whole theory was a hovercraft driving upstream, since there is very little to no friction underneath the hovercraft it will always move forward as long as the thrust is coming from another source. Since the wheels on the plane arent connected to a drive train of any kind we can pretend there is 0 friction, the plan is being pulled through the air by the engine which doesnt touch the ground which in this case is moving. If we look at the bigger picture the earth is spinning a fuckload faster than any plane, isn’t the earth a big “treadmill” ? How does any plane take off if the earth is spinning below our feet?
yeah man, if you don’t understand what the question is describing, then you are an idiot, sorry. it is pretty clear. if you took it as the plane was stationary, then you just were being dumb, real dumb. straight up.
aha! a trick question!
omg subscribed :wordddd:
you’re the idiot that cant even change the color of a car in photoshop 
i’ve done it, but it took me a long time. the elise in my sig was actually yellow on conception…
lies
People aren’t doing a good job asking the question nor explaining it.
Think of the flow of air through the jet engine as a rope
plane_ <-rope
The plane runs on this rope like a zip line. At max turbine RPM the plane is traveling this rope at its max speed.
The wheels are spinning on the ground at say 150mph.
Now put the conveyor there. The plane is still traveling on this rope (air) at 150mph while the wheels are now fighting the 150mph oppsing speed of the conveyor. So the wheels are spinning at 300mph. You have to assume that the conveyor runs the length of a runway. If lift happens at 150mph then the plane will take off when it is traveling at 150mph and the wheels are doing 300mph.
This is the way that helped me understand it.