
tips from the toolbox
A CERTIFIED MARINE
MECHANIC TALKS ABOUT TIPS FOR
PROPER MAINTENANCE AND OPERATION OF YOUR BOAT AND MOTOR
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Hey
Folks! Welcome to TIPS FROM THE TOOL BOX. I'm Back! With some more on props, last time I gave you some info on PITCH. OK let's take this prop
thing into another spin in time, 4 Blade, 3 Blade, 5 Blade, Well I would recommend the
5 blade it grabs the most water and gets the best bite and will give you that arm
wrenching launch that you want. Hey here is also another benefit the more blades the
better the hold in rough water. The reason for the
differences is the amount of flex in the blades from the different materials. Stainless is
the hardest and doesn't have any give to it, which means a 17 pitch will stay pretty close
to 17. A 17 pitch aluminum will flex and therefore not give you the 17 pitch push and a
composite will flex even more than that. A further disadvantage of a Stainless prop can
occur if you hit something with it. During a slight impact the prop would suffer very
little damage since it is a lot harder but if you hit something at higher speeds, the
impact can be transferred to the propshaft and can cause some very expensive damage if the
propshaft has to be replaced! As well, repairs to a stainless prop will be about twice as
much as repairs to an aluminum prop
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