Re: props
Again -- wrong approach to a prop problem. Read the READ THIS FIRST post at the very top of this forum. You have provided no useful data to base a recommendation on. You said 3400 RPM and 20 knots. If you go wide open throttle, that's the important set of numbers. You engine needs to be in the 4400 - 4800 RPM range at wide open throttle with an average load. Whatever prop you find that allows the engine to operate in that range will be the best prop and speed will be what that prop provides. You can't get xx MPH out of an engine, boat, load, and prop that provides only 45 MPH at WOT.
