New to the forum, so please be gentle.
We designed and built our sailboat in the backyard. She is a cutter
rigged heavy (about 25,000 lbs) cruiser, 38 ft hull
, 42 ft overall, 32 ft LWL, full keeled, propeller
in aperture. She is powered by a VW Jetta Diesel engine
1.6 that came from a car. Even though it's rated 53 Hp at 4,000 RPM
, we all know that is not going to be achieved on a boat
. We are assuming a max of 3,500 RPM
and 45 Hp. The transmission
is a Hurth
with a ratio of 2.6 to 1. Shaft is 1 1/4".
Any kind souls out there that can help us figure out what would be the right fit 3 bladed propeller
? I submitted the data to 6 propeller manufacturers and I got 3 different prop sizes.