Check the Archives!
Rick, Be sure and check the archives on this site. Much has been written on this subject and there lots and lots differing opinions. I, too, have been obsessing over a new "low Drag" prop, and have done lots of research and gotten lots of opinions. It appears that there are several good props for the 321. It seems to be a matter of how deep your pockets are. The consensus is: Stay with three blade for reduced vibration and better motor performance, all the high end feathering or geared folding props ($2,200 to 3,000) work well. A fellow 321 owner here in Kemah (Galveston Bay) loves Kiwi Prop ($1,100 price is right too). Another alternative is the Campbell Sailer Prop. This is a fixed prop but with a radical blade design that reduces drag when sailing. Should give you about 1/2 to 3/4 knot gain without the complication and expense of folding/feathering options. The quote that I got was about $500 plus installation. Good luck and let us know which way that you go.
