Patrick R Ford wrote:
Hi Listers,
I was told there is a way to calculate hull speed for a given boat.
My C27 has a Petter 6 hp diesel--length at waterline is 21ft 9in--std
keel--
displacement 6850lbs--LO 26ft 10in--beam 8ft 10in.
Supposedly there is a formula to calculate --2800 rpm or 3000rpm with
a 12 X 7 prop.
???? Anyone know how or where I can find it ???
Pat Ford
Seabiscuit
Port Washington, WI
Pat,
I used to have it memorized. Damn my old forgetful head, But it's in
Rousmaniere (The Annapolis Book of Sailing), Chapman's, and
Creagh-Osborne's Cruising.. It'll be about 6 kt on your boat, I think.
If you can't get it, email me and I'll look it up. But in this crowd,
someone will have it precisely
Rudy B.
Phoenix, #2237
Pasadena, MD
