On Aug 1, 2:15 am, "Marc" wrote:
....
Anyone with experience in diesel eletric solutions in this size for sailing
yachts? ...


You might want to read the two part series in PBB (http://www.proboat-
digital.com/proboat/20070607/) on hybrid propulsion. They cover
engine sizing and a good deal more. It sounds like you've already
decided that you want to go with electric and I don't want to dissuade
you However, if you are just after fuel economy and are looking at a
true diesel electric system rather than an electric boat with backup
generation a variable pitch propeller will do a better job than an
electric transmission for a good deal less money.

-- Tom.