prop help

[Skools Out]

not all true an aluminum will turn higher rpms it's lighter to turn and i'm turning a 14 1/2 x 19 on mine 6100 WOT and a 15 x 17 will turn 6200 no big difference those are the same prop for the most part due to the size. the 14 1/2 bites less water than the 15 inch prop. all mine are Stainless too

oh and if you want to you can turn a 14 x 22 Stainless just as long as the prop has hole shot holes drilled in it at each blade. they will add almost 300 rpms on top but will slow ya a little on the same prop say you have one without holes and it turns 5700 rpm at 50 mph and you drill it with 1/2 to 5/8 holes then it will turn 6000 to 6100 with better hole shot but will only get you about 46 mph.