Considering purchasing a folding prop for my 2002 Catalina 270 with an 18 HP Yanmar. Any thoughts on what one to buy and what should the correct size be. The current prop on the boat is a 3 blade fixed 13RH x 10.
Not a clue, my C27 (85) came with a martex, I have not had any problems. I don't race enough to really be able to tell the difference. Biggest issue is how much you motor. I max out at about 10 minutes, unless going into storage. The three blade is a good thing if you have a lot of motoring. I realize this is virtually no help, I could measure the prop if you can wait a few days.