Question:
I am, ( as far as I know) happy with the factory aluminum prop. It provides a good hole shot, good fuel economy and a top end (on fresh water) of about 55mph. I've been noticing the many boat owners have changed to stainless props. What is the advantage? Isn't the flex you get from an aluminum prop prefered?
Thanks in advance.
Answers:
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The advantage of an s/s prop is longevity. They are much stronger than aluminum and take more punishment without showing damage. However they are also much heavier and increase the mass the geartrain(lower unit ) must handle. You will notice a difference when shifting, feeling a clunk when going into gear. It will result in increased wear on the gear train. I have seen outboard lower units fail from these props. People switch to these props for various reasons such as longer prop life and the fact that some sizes and types or props are available only in s/s. As long as you are satisfied with the performance you are getting there is no need to switch, there are plenty of other things on the boat to spend money on!Actually, the flex reduces the acceleration from a stop. Also, the stainless steel won't ding so easily as an aluminum prop. You might even try a 4 blade instead of a 3.
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unless you're running in some "stumpy" water, the aluminum prop will serve you well. a SS prop can do a lot of damage to a lower unit if you hit something hard. also, you can buy 3 or 4 aluminum props for the price of one SS. try not to fix what "ain't" broken.More Questions & Answers ...
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