Boatworks

Propeller Puzzles

by Nigel Calder, Posted December 14, 2010
Steve Hiss of North Kingston, Rhode Island, asks:

"I’ve installed a rebuilt M3-20 Universal diesel on my 29-foot Ericson, and I’m wondering whether the new three-blade prop, which looks a bit too big, is correctly sized. When I put the engine in gear just above idle speed the boat moves forward quietly, but any increase in rpm produces a pulsing vibration under the back of


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SAIL's Tip of the Week

by SAIL Editors, Posted July 29, 2014

“Just head for the buoy up ahead and make sure you leave it to the starboard.” An instruction like that is asking for trouble, especially if a novice is steering.


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Tech Talk

Peter Aschenbrenner has been fascinated by high performance trimarans since the mid-1970s. He not only has watched the breed evolve, but has also made three attempts to build a dream boat of his own—a fast cruiser that could sail the oceans with complete autonomy. 


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Columns

Voice of Experience: Going Wrong in Fives

by Timothy B. Glynn, Posted July 14, 2014

John D. Macdonald, through his iconic character Travis McGee, observed that one thing never goes wrong on a boat. Instead, things go wrong in threes.


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Boats

Gunboat 60

by Charles J. Doane, Posted July 10, 2014

Since the company’s inception a dozen or so years ago, Gunboat’s no-holds-barred Morrelli & Melvin-designed boats, with their distinctive angular slab-sided hulls, have become the ultimate objects of desire for a whole generation of multihull sailors. 


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