Re: question about 5 blades
How the boat is set up will determine what bld number will be required and the use of said boat will add more to that equation.
Typically, 5-bld props are much smaller in diameter and 2-3" less pitch than a prop that pulls "X" RPM. The higher the blade number 3,4,5,etc..the lower the speed in most cases where the drive heigth is "fixed" or cannot be changed to run higher or lower-not trim, but physical height of prop-shaft in relation to hull bottom.
Hole-shot tends to increase with blade numbers with lower "stay-on-plane" speeds, but increasing pitch on a 5-bld will kill the performance over-all.
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