C&C 37/40 XL, loaded for cruising, fuel & water tanks full:
Non standard engine, a Yanmar 3JH2-TBE (turbo, 47 hp)
Transmission 2.64 : 1 reduction ratio
Propeller Size:  18” - 3 blade feathering

The following assumes no head wind to speak of, and fairly calm water:
3200 RPM, 7.0 kts
3400 RPM 7.1 kts
Wide open - 3800 to 3900 RPM 8.0 kts, lots more fuel being burnt.

Say 10 to 15 knots on the nose and some waves: 3200 RPM 6.0 to 6.4 kts.



On Tue, 23 Jun 2020 at 13:53, Rob Hamlin via CnC-List <cnc-list@cnc-list.com>
wrote:

> Hi
> What is everyone’s motor/ rpm optimal motoring speed?
>
> Thanks
> Rob
>
>
>
> Sent from my iPhone
> _______________________________________________
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-- 

Ken Heaton & Anne Tobin

S/V Salazar - Can 54955

C&C 37/40 XL - Hull # 67
Cape Breton Island, Nova Scotia
C&C 37/40 XL Salazar <https://c-c-37-40.blogspot.com/p/salazar.html>
-- 
"Nice? It's the only thing," said the Water Rat Solemnly, as he leaned
forward for his stroke. "Believe me, my young friend, there is nothing --
absolutely nothing -- half so much worth doing as simply messing about in
boats."

"Simply messing...about in boats -- or with boats... In or out of 'em it
doesn't matter. Nothing seems to matter, that's the charm of it. Whether
you get away, or whether you don't; whether you arrive at your destination
or whether you reach somewhere else, or whether you never get anywhere at
all, you're always busy, and you never do anything in particular; and when
you've done it there's always something else to do, and you can do it if
you like, but you'd much better not."
_______________________________________________

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