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Old 02-03-2013, 05:31   #1
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Hatteras 37 dog boat ask permission to come aboard

Hello everyone,

I am long time dreamer about the whole concept,

I have this wonderful (project boat) for many years and I am rebuilding it little by little.

It is fascinating to do it all by yourself and learn on the way from the older wiser people.

Do you think it is possible to add a yannmar 37 diesel outboard and make large distances with economy on a trawling speed ? 5-6 Kn ?

Any other ideas without removing my engines.

The engines are 2 x 335 HP Steyr turbo diesel, I can't go far with 800 litres of juice with them.

Thank you

Bill
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Old 02-03-2013, 06:02   #2
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Re: Hatteras 37 dog boat ask permission to come aboard

Why not go slow with the Steyrs? We've been traveling at 6-6.5 knots (1300-1400 RPM) in our heavy 26-footer, powered by a Volvo KAD44P 260hp rated for 3800-3900 RPM, for 90+% of the last 3,000 hours or so. We get 3X the NMPG at 6 knots vs planing cruise speed of 18. 5100 hours so far, and the engine runs like a top.

Added: We run fast enough to make the engine work a bit - somewhat above our hull speed. You do need to keep the engines at a proper temperature, not poke along so slow they get too cool.
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Old 02-03-2013, 06:20   #3
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Re: Hatteras 37 dog boat ask permission to come aboard

That sounds good.

A real life test will show I suppose.

Thank you for your answer.
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Old 02-03-2013, 06:37   #4
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Re: Hatteras 37 dog boat ask permission to come aboard

It's also recommended to get the engines really thoroughly warmed up and "cleaned out" by running at planing cruise speed for maybe 10 minutes or more every so often, like at the beginning or end of most cruising days.
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Old 02-03-2013, 07:09   #5
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Re: Hatteras 37 dog boat ask permission to come aboard

Greetings and welcome aboard the CF, Bill.
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