greenwoo wrote:no, i think you should just jack one wheel up - and in effect you need to look at how many turns of the prop = whatever turn of the wheel, not the other way round ( which is what i think you've done)...
so unless i'm being thick ( always a chance)...jack 1 wheel up, turn the wheel until the prop has made 10/20/30 complete revolutions and then all should become clear. ie/ the more complete revolutions the prop does, the more accurate/easier it shd be to divide the final wheel revolution BY that figure.
its the output you're measuring, not the input!
Not sure of this one. 2 x 3 = 6. 6 / 3 = 2
wheel spins vs prop spins are surely always the same ratio, times or divide
1 wheel up or both wheels up, I cant see why there would be a difference