Outboard size for 20ft sailboat - Page 2 - SailNet Community
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post #11 of 12 Old 02-29-2012
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outboard for sailboat

I have a 22' Oday. I recently replaced my 8hp 2 stroke Suzuki with a 4 hp Tohatsu 4 stroke with f-n-r transmission (my minimum requirement). It is very convenient for docking. It has the option of instantly switching from integral tank (1.3L) to external tank with a flip of a lever. I chose the 4 stroke because-no gas/oil mix, quieter, better economy. The 4 hp has plenty of power to push my boat to within 1/2mph of the hull speed. Anything will get you in and out of the slip. Where I use the power is pushing against a strong headwind with no sails up. I haven't felt handicapped at all with the 4 hp.
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post #12 of 12 Old 02-29-2012
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Originally Posted by mceveritt View Post
Thanks. The 5 hp I am using now pushes her along fine. The only reason I want to get a new one is that the motor casing rubs the back of the motor well and limits me to keeping the motor in a straight line. Which is fine for going forward, but basically eliminates any possibility of reversing effectively.

Just have to keep my eyes out for a motor with a small enough casing to work with my particular well configuration.
Or enlarge the well. I'm not being flippant, if you have a good engine, which sounds like the ideal hp, why not move the offending wall back.

PS.if you can't turn the engine, welcome to my world - you don't have any worse reversing than I do

PPS, why bother lifting the o/b out for sailing? The drag of that little prop is small, especially compared to your full keel! Inboard engine boats live with that drag all the time. Plus, lifting a 4 stroke and stowing it, you are asking for oil in the cylinder and a tough time starting it.

Bristol 31.1, San Francisco Bay

Last edited by MarkSF; 03-01-2012 at 12:02 AM.
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