While working on the nose fairing I remembered that I hadn't actually measured my as-installed prop clearance. When picking out my prop, I talked to Hartzell and pondered what to do about choosing the 72" vs 74". I figured that with the IO-390 making a little more power than the IO-360, the better choice may be the longer prop. Hartzell felt that way too, when I called them. They also said that the longer length gives more repair you can do to the tips should you need to shorten or file it for nicks. Van's tended to lean from what I gathered from talking to them to the 72", primarily for added clearance. The price is the same either way.
It was a tough choice but I went with the 74" after they gave me the factory demo prop clearance and I found it was more than the clearance I have on my 80" RV-10 prop.
I just wanted to give the data point for my IO-390+74" C2YR-1BFP/F7497 prop, installed on the "A" model RV-14. As installed, it is just over 11.5" of ground clearance...close to 11-5/8".
I can't say that it's the perfect prop for everyone. Taildraggers may want a different one, perhaps someone wants to comment on that. But for the RV14A, it sure seems like the 74" has no real down side.
I just wanted to post that in case there were others who sweat the details before signing the order form, like I did.
It was a tough choice but I went with the 74" after they gave me the factory demo prop clearance and I found it was more than the clearance I have on my 80" RV-10 prop.
I just wanted to give the data point for my IO-390+74" C2YR-1BFP/F7497 prop, installed on the "A" model RV-14. As installed, it is just over 11.5" of ground clearance...close to 11-5/8".
I can't say that it's the perfect prop for everyone. Taildraggers may want a different one, perhaps someone wants to comment on that. But for the RV14A, it sure seems like the 74" has no real down side.
I just wanted to post that in case there were others who sweat the details before signing the order form, like I did.