Prince Prop & Experience with proposed sizes

[Clouddancer]

Is anyone using a Carbon Fiber P-Tip Prince Propeller on his RV? What size do you use and how comfortable are you with it (over/under pitched)?

I?m especially interested in the combo RV-4, O-360 (with electronic Ignition) and Carbon Fibre P-Tip propeller. The engine might therefore produce some hp more than the official 180hp.

Prince is proposing the following propellers for RV?s:
RV-4 & O-320, 150PS: 68/74
RV-4/-6/-9 & O-320, 160PS: 68/76
RV-4/-6/-7/-8 & O-360, 180PS: 68/78

[hevansrv7a]

Lonnie now offers, in addition to the P-tip, an "elliptical" shape prop. My testing so far is inconclusive, but my opinion at this point is that it's just as good as the P-tip and Lonnie tends to agree. I wrote up my experiences earlier in this forum.