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post #7 of Old 05-30-2002
bsfree's Avatar
Join Date: Oct 2001
Location: Marina Del Rey CA
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three blade prop

For what it''s worth, I have a 35'' full keel 18,000# boat with a 36hp diesel. I changed from the 3 blade to the 2 blade to be able to increase rev''s to a range that brings rated horsepower into being. I have no problem with "walking" in reverse if I let the blades bite at low rev''s then increase power slightly to maintain control. I have wheel steering and it''s the same principal as driving a car in reverse (turn the wheel in the opposite direction to go the way you want)also, my gps says I make 7kt''s in calm waters. Bottom line is engines run best if they are run in the rev range they are designed for.
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