Quote Originally Posted by Slinger View Post
The current ratio is 1.5.
Yes the 1.76 means the prop spins slower for a given amount of engine rev's. The benefit is this gearing allows you run a bigger diameter and higher pitch prop which has more efficient pulling power under heavy ballast. Kind of like low ratio in a 4 x 4 to climb a steep gravel hill without spinning the wheels(1.76) verse high ratio and spinning the wheels up the hill.
If you hit something it won't make any significant difference
So then this begs the question, if it is all
Advantages and no disadvantages, then why don’t they use this set up in ever boat? I guess I never realized that a big prop with a higher pitch spinning slower is that much more efficient than a slightly smaller prop with a lower pitch spinning faster.


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