• ARRSE have partnered with Armadillo Merino to bring you an ARRSE exclusive, generous discount offer on their full price range.
    To keep you warm with the best of Merino gear, visit www.armadillomerino.co.uk and use the code: NEWARRSE40 at the checkout to get 40% off!
    This superb deal has been generously offered to us by Armadillo Merino and is valid until midnight on the the 28th of February.

Can you work it out....

#1
Imagine a plane is sat on the beginning of a massive conveyor belt type
arrangement, as wide and as long as a runway, and intends to take off.

The conveyer belt is designed to exactly match the speed of the wheels
at any given time, moving in the opposite direction of rotation.

There is no wind.

Can the plane take off?
 
#8
Yes.
Unless you have one of those weird planes that has a gearbox that drives the wheels to accelerate it down the runway, in which case the answer is no.
 
#9
Its the same theory as, If i fired a rifle of the back of a train, travelling at the exact same speed as the round, what would happen?
 
#13
If the wheels have no resistance (which I will assume given that this appears to be either GCSE or A-level work, where this is normally assumed to be the case) then the conveyor belt will match the speed of the wheels, forming an immediately infinitely fast wheel speed. At the same time, the plane will still move forward (because the propellor/jets provide the thrust, not the wheels) independantly of any wheel movement.

If the wheels have resistance (as in real life) then in all likelyhood, the wheels will soon be turning at such a rate that they either cause the aircraft to reach terminal velocity (which may or may not allow take-off) or break the landing gear (which will prevent take off).
 
#14
johnboy91 said:
Imagine a plane is sat on the beginning of a massive conveyor belt type
arrangement, as wide and as long as a runway, and intends to take off.

The conveyer belt is designed to exactly match the speed of the wheels
at any given time, moving in the opposite direction of rotation.

There is no wind.

Can the plane take off?
Wouldn't be able to take off in Britain. The conveyor belt would break, the plane would be delayed and it's always fucking windy.
 
#20
Ah okay the Mythbuster program has proven a whole new concept for aircraft carriers. Instead of a ski jump or catapults all the Navy has to do is sit a Typhoon on a treadmill on the deck and the jobs sorted......
 

Latest Threads

New Posts