catamaran prop

[Nuaticocat]

I have a 2000 nautico catamaran with a 50 Honda. I am changing to a 2002 75 merc, both 4 strokes. Can someone give me some advice on a prop for this motor? A starting point to work from. Boatis about 1000 lbs with motor and gear plus me, maybe 1200 lbs max.

 

[steelespike]

Re: catamaran prop

Apparently a 16 footer.If the motor has a prop now do a lightly loaded test run.Get us the prop size and the wot rpm and gps speed.
I think your underestimating your weight.Boat is listed at 750,motor 400 don't forget gas,batteries and gear + yourself.