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?
1979 Glastron Spirit 28, Hull #28.
Twenty years from now you will be more disappointed by the things you didn't do than by the ones you did. So throw off your bowlines. Sail away from safe harbor. Catch the trade winds in your sails. Explore, Dream, Discover.