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NoBozo · 07-24-2009, 10:27 AM

Back in the '70s I had a 27 foot (5500#) sailboat with a 4 cylinder 30HP "Atomic 4" gas inboard engine. It burned 1.0 GPH @ 6 Kts.

In the '80s, I had a 32 foot (10,500#) sailboat with a 2 cylinder 15HP "Yanmar" diesel inboard. It burned 0.2 GPH @ 6 Kts. That's not a misprint: One Fifth of a GPH.

Sailboats have a much more efficient hull form than planing power boats. They have to, or they won't Sail Well either. Then again, sailors are not in a hurry to get somewhere.

07-24-2009, 10:27 AM	#19
NoBozo Senior Member Join Date: Jun 2008 Location: Portsmouth. RI Posts: 2,231 Thanks: 400 Thanked 460 Times in 308 Posts	Sailboats Back in the '70s I had a 27 foot (5500#) sailboat with a 4 cylinder 30HP "Atomic 4" gas inboard engine. It burned 1.0 GPH @ 6 Kts. In the '80s, I had a 32 foot (10,500#) sailboat with a 2 cylinder 15HP "Yanmar" diesel inboard. It burned 0.2 GPH @ 6 Kts. That's not a misprint: One Fifth of a GPH. Sailboats have a much more efficient hull form than planing power boats. They have to, or they won't Sail Well either. Then again, sailors are not in a hurry to get somewhere.