I had one on my exp cub. 78X38. It also had c85 Pistons and Vetterman exhaust. Static rpm was 2390. 85-88 mph cruise. It climbed really well also. It was a great prop. A guy in WY has it now.
Maybe reliableflier will chime in. He has one on a C90 J3. 78 or 80"
Glenn
I have a Catto 76x37 on an experimental PA18-95 with a stone stock C90, it was what Catto recommended a few years ago. It is currently at Catto for a repitch to 35. I could not get to the redline in cruise with full throttle, cruised about 90, with 3/4 inch gurney flaps installed, a couple of mph faster without. I never checked static. It was supposed to be shipped back last Friday, however have not heard from them. Too much snow on the runway to fly on wheels right now, we do not plow. Will post results from new pitch when able.
They sand it down and can add more in some places and sand more off in others. I asked the same question.
I was sure you had. Did they quote you a price? I ask because I might like to have them re-work mine however I'm looking to increase pitch. 38 to 40
Thank you.Glenn
I have a Sensenich ground adjust if you want to run it while yours is away
jim
Thank you.
I am running a Catto 76/40 on my stroker c85. Very good t/o and climb, cruise 2150 84mph, 2350 92mph, w/o 2550 98mph. Smooth and l got ride of the extra weight. I tried a 74/36 and it didn't work as well. I am very happy so far, it has only been on this winter so I have no idea if I will like it 2up 90 deg.