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Sat, May 28 2022, 13:31Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 123456[7]8910 ]

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Date Posted: - Monday - 09/18/06 - 12:39pm
Author: Randall, Murre, M31
Subject: prop
In reply to: Capt'n Mike - Gypsy Mariner TM36K 's message, "Transmission Ratio" on - Friday - 09/15/06 - 6:49pm

Murre runs a three blade 12 inch, 6 pitch prop. Capn Mike's reference to transmission ratio is crucial to your decision. I put a three blade 13 x 8 prop on Murre for a while (seems to be common among other M31s), but couldn't get appropriate RPMs.

Figured out later that the prop was too big for my 1:1 tranny, and a 12 x 6 is a perfect fit (i.e. plenty of reserve power).

I've stuck w/the three blade (the boat came w/a two blade stuck away in a locker) because we do plenty of headwind motoring and plenty of high wind sailing, so the extra drag, for us, is worth the trouble.


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