SailNet Community - View Single Post - fuel consumption gas vs diesel
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post #13 of Old 09-11-2009
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Guys, the fuel burn per hour seems very rasonable, considering the btu's diesel provide and also the average efficiency on engines nowaday. But seems mostly of you are taking your engine MAX RATED HP in consideration and not the real HP you're using. In other words, my boat has a 54HP Yanmar, and when cruising in calm waters at 6knots, I use barely 1600 rpm, this mean roughly 27HP out of my engine. At this HP, it burns almost what the previous table say. So, if you're measuring you consumption, please note the rpm and go to your engine graph to show you how much HP it puts at such rpm.

Nave Rara
Beneteau Oceanis 43
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