Originally Posted by
ccostant
As Shaun stated early, I too would have never believed 1500-2000 increase in RPM. I always assumed, of course you know what happens when you ass-u-me something, that the max increase would be less than 500 RPM. Learning something new every day.
It depends on the prop being used. Example: a 24x6 prop will unload relatively small amounts while a 20x12 will unload much more. Once some of the static pressure load is removed from the back of the prop it will cut faster at a greater distance.