1979 O Day 37 centercockpit propeller

[soireeiown]

I am trying to change my 2 blade propeller into a 3 blade propeller but I am having trouble finding the size for my boat. Can anyone help? Looking mostly for used in Miami Florida area.
I know is 16 x 11 (not sure which one is the diam. and which one is the pitch) and 1 1/4" shat diam.

 

[ebsail]

16 is the diameter and 11 is the pitch. Why do you want to change it?. A 3 blade is slightly smoother but will create more drag when sailing.

 

[tcwaltz]

I highly recommend the campbell sailor. They will get your boat info, engine type etc and can tell you what you need. The drag on it is not much more than a two blade by the performance is superior. http://www.westbynorth.com