On Tue, 20 Nov 2007 08:55:03 -0500, jeff wrote:

They indeed have an inverter, which means the motor is variable speed.
At low load (or idle) it is very quiet and fuel efficient. I was,
however, disappointed in the noise level when run a full power. From 20
yards behind my boat, (cramped mooring field distance) it is much loader
than my Yanmar 2GM's, which means there are places I can't use it daily
without being anti-social.

I've been moored near a couple of "on deck" Hondas and they are way
too loud. You could generate at least 2KW of AC by putting a high
output alternator on each Yanmar and feeding an inverter through
battery combiners.

Here's what I'm using:

http://www.fleetsource.com/product_p/110-555jho.htm

http://www.defender.com/product.jsp?path=-1|328|51495|606044&id=605590

http://www.defender.com/product.jsp?path=-1|328|51495|985|316473&id=88467