need help sizeing a prop for the sailboat im building.Its a hanna carol ketch
ive got a volvopenta 36hp md17d with a 2.38;1 trans in her ive contacted 2 prop guys about this one says 20 dia. 11 pitch
the other one says 18 dia 12 pitch
the boat weights 15 tons with waterline of 32ft i cant get 15percent hull
clearence with the larger prop.ive got 1 3/8 clearence between tip of blade top and bottom if i go with 20dia.the boat is a double ender so the hull
around the prop is1/2 thick do you think that would cause problems. the rpms on the motor
go up to 3000 would like to have the biggest prop possible thanks for any advice yall could give me smooth sailing to ya will join yall soon ironworker.