ORIGINAL: opjose
ORIGINAL: DenverJayhawk
I can tell you it behaves this way in my nexstar. I'm curious now. I always just assumed basic physics works this way. Why doesn't my engine stall in a prolonged dive but it will die if i hold it nose down stationary when the tank is half full?
to make it ''stick'' to the back, you need 2G's acceleration.
Do the math and you'll find that none of our planes can even begin to approach this rate of change, nor the resultant velocities involved.
being little miss pedantic here:- The acceleration needs to be
in excess of 1G for the fuel to go to the back of the tank. 2G is in excess of 1G, but it doesn't need to be that high.
Any plane that has not reached its top speed is capable of accelerating, so if it's pointing straight down, it will have an acceleration in excess of 1G if the engine is full blast (1G from gravity plus the bit that comes from the engine). Of course, it won't be able to maintain that for long because (a) it will attain its top speed and (b) it will meet Momma Earth.
Any model capable of prop hanging has a thrust to weight ratio in excess of 1, even when the prop is not at its most efficient, so it could achieve a 2G downwards acceleration.