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Old 08-22-2013
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CanadianNorth CanadianNorth is offline
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what kind of headwind should a sailboat be able to motor through?

Thats a broad question,

I have a 1979 Spirit, 28 foot boat with a 15 hp yanmar.

My motor idles and runs fine, up to 5 knots, with minimum headwind (2300 rpm)

However, with strong headwind 30+ knots, the boat simply cannot make headway, the engine struggles, rpms drop and smokes black smoke at times. (drops to 1200-1500) rpm at wide open throttle.

Any thoughts? it is normal for a boat of this size with this engine to be unable to tackle a headwind?

thanks
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