[MHml] engine power/wind power/motor sailing catamaran
Wed May 12 22:42:03 EST 2004
Just for a reference. there is a little book called Fast Boats, that
has a number of formula for power and sail including multihull
The big factor is that they all use a coef. you specify. Working
backward with the ceecat power cats, we got a coef that when applied to
another similar design predicted the performance within a few %.
Think the author is DuCane. Sure is out of print.
Think Marjac has formula for HP by SA in various wind speeds.
But all this still uses a coef. His numbers are from metal model sails
and soft sails with various fabrics will produce a wide range of
So you still need a real time set of factors to determine the coef.
range to use in projecting.
Capt. Len Susman
trikini23 at trikini.com
WWW TRIKINI Project
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