I love my Catto 3 blade. With my RV14A, Lycoming 390 Thunderbolt I can climb out (here in Seattle) at over 1000fpm, 2400 rpm...and it looks very goodWhat TAS and RPM do you get at 8500 and 12500 WOT? What static RPM do you make? If you wanted more amazing acceleration on takeoff, a CS prop should have been higher on your list, but as you know, any fixed pitch prop is a compromise, however, I never heard any complaints about Catto props.
A couple of data points to check are:No, 1000' MSL was the altitude where I was doing my "box" pattern (overcast at 2000'.) I was not WOT. 2400rpm. 168-170 knots. Next time I fly I'll go WOT and see what numbers get then. I'll also get as precise as I can with temps. I'll also try and get some good numbers at 7500'. Some weather was coming back in this morning, so I had to RTB sooner than I would have liked.
I'll also get a good static WOT rpm check. This rpm could be low, and explain what feels like less than expected takeoff acceleration.
Regardless, this is a nice prop. Happy with it....tiny or not
FWIW, From the sticker, my Catto 3 blade, 2005 vintage, 66x76, Max RPM = 2800I believe the Catto is good for 3200 rpm, you could check the sticker on the prop under the spinner.
O-320? Or O-360? What size prop bolts? 3/8, 7/16 or 1/2?FWIW, From the sticker, my Catto 3 blade, 2005 vintage, 66x76, Max RPM = 2800
IO 360, forward induction. Not sure of the prop bolt size. I’ll check tomorrow when I go to the hangar.O-320? Or O-360? What size prop bolts? 3/8, 7/16 or 1/2?
I bet it’s got 1/2 inch bolts.. do you have a picture of the sticker? I saw one on the Internet that said rated RPM 2800+ but then under it, there was a line that said Max RPM 3200.IO 360, forward induction. Not sure of the prop bolt size. I’ll check tomorrow when I go to the hangar.
Yep, you're correct. I just looked at the sticker. My sticker states: "Design RPM 2800" "Prop Red Line RPM Max 3200".I bet it’s got 1/2 inch bolts.. do you have a picture of the sticker? I saw one on the Internet that said rated RPM 2800+ but then under it, there was a line that said Max RPM 3200.
Sensenich alum. prop. 72fm8s9-1-85 for 180 hp Lycoming has bolts and spacer, sent to propeller shop for Inspection, refinish, and rebalance, has log book and copy of shop work order, no damage, In Sensenich box, 260 ht tt Good prop for 0-360 on rv4, 6 , 7, and 8 In prop shop sensenich box.has bolts and spacer $3400.00 or make a good offer. email me for pictures mike [email protected]. I have several rv's with the sensenich prop , best bang for the buck, any ques ok to call me Mike 602-421-8785, I was going to install this on a rv4 180ho wide deck , got old , sold project , can send pictures. MikeMy new-to-me RV-8 has a 180hp Lycoming O-360-A1A with a 3-bladed Catto prop. The first comment by every hangar neighbor that stops by is, man, what a sweet looking RV-8, and DAMN that prop is small. Looks cool...but ti-neee. Gotta agree. And, not only small diameter, but small blade chord, too. Frankly, it looks like it belongs on some Rotax-powered ultralight (ok, a 4-stroke version)
Wondering if I should ditch this prop and go with a two-bladed, longer diameter prop. Takeoff acceleration is, shall we say, liesurely at best.
Yes, 1/2" boltsI bet it’s got 1/2 inch bolts.. do you have a picture of the sticker? I saw one on the Internet that said rated RPM 2800+ but then under it, there was a line that said Max RPM 3200.