Here's what I meant to post: Idlewild, with a waterline beam of only 10 feet, made the 4,495-nautical-mile passage burning 1.39 gallons per hour which works out to 4.57 miles per gallon. As per <http://www.idlewildexpedition.ca/logs/Feb_12_06.htm>. Idlewild is powered by a 55-hp Kubota which, Ben Gray told me in Vancouver, generally ran at 15-20 hp sipping just a tad more than 1 gph. For greatest efficiency, you want to be skinny as well modestly-powered. --Georgs >Are you sure Ben Gray only got 1.39 gallons per mile? Knowing Diesel >Ducks, I'd think it was more like 3 miles per gallon. > >Bob Frenier > >-----Original Message----- >From: >passagemaking-under-power-bounces+frenier=hughes.net@lists.samurai.com >[mailto:passagemaking-under-power-bounces+frenier=hughes.net@lists.samur >ai.com] On Behalf Of Georgs Kolesnikovs >Sent: Monday, August 28, 2006 3:27 PM >To: Passagemaking Under Power List >Subject: [PUP] Unsailboat fuel consumption > >Steve Dubnoff of Nereid wrote: > >The Dashews just published their fuel consumption figures for their > >trip to Alaska. At an average speed 11.3 knots, fuel consumption was > >1.76 nautical gallons per mile. I think it is clear that for > >efficiency anyway, long and skinney is the way to go.... > >But you don't need to spend nearly $2-million and build such an >overly long boat . . . as illustrated by Ben Gray with Idlewild: >Nonstop from South Africa to Australia at 1.39 gallons per nautical >mile. > >http://www.trawlersandtrawlering.com/news/idlewildnonstop.html