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Old 29-12-2019, 10:19   #16
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Re: What is the fuel consumption of a Hunter 310

I run where it vibrates the least... about 2200 to 2400 to on a Yanmar 2gm29f.
Increasing rpm gives me 3/4 of a knot in speed, much higher fuel burn and shakes my fillings loose. I estimate my but yo be 1/2 gallon per hour.

Unlike your Hunter 31, my very fat, short waterline Watkins 29, gets about 6.0 kts. at full power. I cruise around 4.5 it's. That 1.5 kt difference isn't worth the noise and fuel burn... Not to mention wear and tear on the boat.
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Old 29-12-2019, 10:22   #17
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Re: What is the fuel consumption of a Hunter 310

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Originally Posted by psk125 View Post
No one has asked about how many blades the prop has, what the size and pitch is, or whether it has been painted with antifouling. ...
For the purpose of buying plane tickets for the crew, I was asked to predict the arrival date for an atlantic crossing. The skipper said the same thing to me...don't I need to know hull speed, wind strength, cruising speed, fuel capacity, precise route, etc? Nope. 1000 miles per week. With a doctorate in maths, he could not accept that "rule of thumb". To his chagrin, it turned out to be exactly correct, and all crew made their flights home with time to spare.

Sailboats are not linear.
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Old 29-12-2019, 10:33   #18
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Re: What is the fuel consumption of a Hunter 310

Can't speak to your Hunter 31, but my Cal 3-30 with a 25XPB uses around 2 quarts per hour. Unless you're passage making, it won't be an issue.
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Old 29-12-2019, 13:39   #19
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Re: What is the fuel consumption of a Hunter 310

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Originally Posted by hamburking View Post
For the purpose of buying plane tickets for the crew, I was asked to predict the arrival date for an atlantic crossing. The skipper said the same thing to me..


If you can predict the arrival date of a TransAtlantic, please PM me. I want you as a navigator.
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