What Catto prop in recommended

[ron sterba]

I have a IO 320 D1A in my RV9A. What model three bladed CATTO prop would you recommend that would allow me to get 2600 RPMS.

Thanks Ron in Oregon.

[flyingriki]

You seriously need to ask Craig. They are smoking busy right now with Reno but give him a few weeks and all will be back to normal....
Anything else you get here may be of iffy value but, hopefully, other's experience offered will be with EXACTLY the same setup. If you're stock it's easier both ways. Good luck, great Props!

[Rupester]

For sure. Craig is Da Man ... he's forgotten more about props than most will ever know. Not to mention one of the nicest guys in the business.

[ron sterba]

Thanks,will do guys, are there planes that have this engine prop combo?

[sbalmos]

Pretty much the same combo. Mine is the 3 blade with nickel leading edge. It's a 67x71. Built by Craig last fall. Going to be mounted on my engine, a 160hp IO-320-E1A, in a few weeks.

[Mel]

Keep in mind that every time Craig changes his design just a little, dia/pitch relevance changes also.

[ron sterba]

Thanks Mel, Mel are you able to get 2600 rpms out of your o-320?

Scott have fun building that ship,sounds like you have a good combo of machinery.

Ron in Oregon RV9A

[rv8bldr]

Although I got my Catto 2003 (which means my prop is a couple of generations old), Craig asked me questions about my engine/airframe combo (IO-360-A3B6D/RV-8) and designed a 3 blade 66x78 for me.

WOT @8000 gives me 2750RPM and 190kts.

Now, being cheap, I normally run 2400RPM for 165kts LOP, but that is beside the point

[Mel]

Originally Posted by ron sterba

Thanks Mel, Mel are you able to get 2600 rpms out of your o-320?
Scott have fun building that ship,sounds like you have a good combo of machinery.
Ron in Oregon RV9A

My RPMs top out at 2750, WOT @ 8,000' DA.
This is what I asked for and this is exactly what I got.
I have no problem getting out of my 1500' strip @ gross weight in the Texas summer.

[ron sterba]

Mel and Mark thanks for the feed back. Do you find that the 3 blade prop slows you down faster when you pull the throttle back,,,,,say in the pattern? I understand the 3 blade also runs smoother less vibration in the cockpit.

Cheers
Ron in Oregon.