You state "bravo" stern drives--which Bravo stern drive units are you going to
use? (Bravo I or II?)

Frankly, I feel that any of the mercruiser stern drives is a very poor choice
for a vessel which will be kept in the water all of the time.  There are
corrosion/electrolysis issues, the antifouling issues and some technical
issues involving the size of props, types of props in powering this type of
vessel.

Regards,

Bob Austin

Bob Austin.

Dear Bob,

I have to agree with your comments on continually immersed stern drives. We do
not recommend their use in that situation. And, as you point out, it is very
difficult to get big enough diameter propellers turning slowly enough for
maximum efficiency. There are some commercially orientated stern legs that
might be a better choice than the Mercruiser drives in this application but
the corrosion problems still exist.

Regards,

Malcolm Tennant.

MALCOLM TENNANT MULTIHULL DESIGN LTD
PO Box 60513, Titirangi.
Waitakere 0642
NEW ZEALAND
Ph: +64 9 817 1988
e-mail: malcolm@tennantdesign.co.nz
www.tennantdesign.co.nz
www.catdesigners.com