Next message: TimTim: "Re: [world-cruising] Re: largest inland waterway in the world"
On 4/16/07, Barry Brazier <> wrote:
>
> Sorry you were right. I get mixed up with tons and 1000 lbs. My boat is 8
> ton or 16,000 lbs. Which now makes me mystified because the 30,000lbs boat
> sure a lot more sluggish with the same power ratio.
> There must be aspects like beam/length and prismatic coefficients etc.
>
There are several more factors, chief of which are shape of underwater body,
cleanliness of hull, cleanliness of screw, proper pitch, and condition of
engine. My first engine, for example, could never produce its advertised 40
HP without overheating. For another, I can easily lose up to 2 knots with a
barnacle-encrusted prop.
--
Best,
Bryan Genez
"Capella" V40-158
New Bern, NC
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