Guest Big H Posted April 25, 2008 Posted April 25, 2008 Did not read the whole post. 1% slope means 1 metre rise in 100 metres vertical, so 13% would mean 13 m rise in 100m vertical etc etc. Now that you have that, use a bit of trigonometry to calculate Theta or the angle........ as I recall the formula is ...... Cos Theta = Opposite (13m) divided by the adjacent (100m) I am sure the propeller heads will take it from here!!!!!!!
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