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#1
IP: 70.20.35.146
12-11-2019, 05:46 PM
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Tartan 27 propeller
I replaced my old, chipped two blade with an Indigo 3 blade. Did not recognize an improvement. Furthermore, after light use over one season the three blade was evenly pitted on both leading and trailing edges, more pronounced on the trailing edge. I suspect serious cavitation. I think the prop is too close to the deadwood. Deadwood is 3" thick, Indigo blade is 4" long beyond a 1 inch shaft. 1 inch of the available 4 is directly behind the deadwood. My choices are:
1- Move the three blade aft by cutting the shaft and adding a spacer at the transmission, or... 2- Purchase a new two blade. I want motoring performance above everything else. What are your thoughts? 
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