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Sailboat as powered cruiser?

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Wayne.B

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On 15 Nov 2004 14:29:56 GMT, (BllFs6) wrote:
Now, lets say I get the typical mostly enclosed small sailboat. Say 18 to 22
footer.

How many HP would I need to push such a vessel at hull speed? And say for
example that it calculates at 4HP, how much more power should I have in reserve
to fight wind, waves, bad weather, avoiding running the engine at max power etc
etc....
===================================

3 or 4 hp would push it to hull speed (around 5 kts) in flat water and
light wind. A total of 6 to 8 hp would be plenty for adverse
conditions.

Some things to consider:

Get the longest shaft that you can to minimize prop pull out on wave
tops.

Get a prop with at least 3 or 4 blades and a low pitch, so that the
engine can get up to speed and develop maximum thrust. They are
available for small OBs but it may take some shopping around.

While you are at it, get comfortable with sailing at the same time.
It's lots of fun and the ultimate in redundant backup systems.

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