Propellor, 4/8/2007Throughout our first summer ('06), we were never able to get the engine RPM up into the recommended range. Usually, that's a sign that you're "overpropped". Before launching this year, I had Digital Prop Shop recondition the prop and reduce the pitch from 18 to 16, which should let the engine spin up to the rated RPM. Also replaced the "prop nut zinc", a large sacrificial zinc on the prop nut, which helps prevent corrosion of other under water metals.
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