---------------------------------------------------------- KIS-List Digest Archive --- Total Messages Posted Wed 12/03/14: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:51 PM - Re: PIREP - CATTO Composite Prop (Robert Reed) 2. 05:28 PM - Re: PIREP - CATTO Composite Prop (Galin Hernandez) ________________________________ Message 1 _____________________________________ Time: 01:51:34 PM PST US From: Robert Reed Subject: Re: KIS-List: PIREP - CATTO Composite Prop Galin, I assume you were expecting about 2700 rpm at full throttle. Do you think the slight reduction could be from new engine break in vs. the prop? The increase in cruse speed it good to hear. Bob ________________________________ From: Galin Hernandez Sent: Tuesday, December 2, 2014 7:59 PM Subject: KIS-List: PIREP - CATTO Composite Prop After my nose gear failure and prop strike I decided to replace my Sensenich Aluminum propeller with a CATTO Composite propeller. I have now done the 5hrs of flight testing and these are my impressions. 1 - The CATTO is beautifully built and machined piece of art. I had mine painted white with the nickel leading edges, Copper colored tips (matches the tail number) and Carbon Fiber Spinner. I love how it looks as can be seen in the attached photo. 2 - The CATTO came in 19.8lbs lighter than the Sensenich propeller. This shifted the CG 5/8" aft, still well within the CG limits of the airplane no matter how I load it. This change in CG made all the difference in the world on landings. I no longer run out of elevator authority on approach and can now softly ease the nose gear on the runway. No more dropping nose. I actually made 3 "squeaker" landings in a row. The good thing is that it did not change any other flight characteristic I tested, specifically the stalls under different loading configurations. 3 - Right now it looks like it might be pitched a little too much since I only got 2,625RPMs at 7,000DA and full throttle. However I did pick up 5kts in cruise and I don't have the nose wheel boot on which will add several more knots in cruise speed. The climb isn't much different that the Sensenich. 4 - I also got an additional 8" clearance between the propeller and the ground which is excellent for "rough" field operation. 5 - The propeller isn't as smooth as I thought it would be but I think I have it incorrectly indexed and part of it might be the recently overhauled engine. Once I have about 50hrs on the engine I will get it dynamically balanced and this should make a big difference. As I fly and test, I will post the results. ________________________________ Message 2 _____________________________________ Time: 05:28:09 PM PST US From: Galin Hernandez Subject: Re: KIS-List: PIREP - CATTO Composite Prop Not sure. After I have about 50hrs I can tell. However if it is pitched too much then I will get an increase in cruise speed. I guess I just have to be patient. On Wed, Dec 3, 2014 at 4:51 PM, Robert Reed wrote: > Galin, > > I assume you were expecting about 2700 rpm at full throttle. Do you think > the slight reduction could be from new engine break in vs. the prop? The > increase in cruse speed it good to hear. > > Bob > > *From:* Galin Hernandez > *To:* "kis-list@matronics.com" > *Sent:* Tuesday, December 2, 2014 7:59 PM > *Subject:* KIS-List: PIREP - CATTO Composite Prop > > After my nose gear failure and prop strike I decided to replace my > Sensenich Aluminum propeller with a CATTO Composite propeller. I have now > done the 5hrs of flight testing and these are my impressions. > > 1 - The CATTO is beautifully built and machined piece of art. I had mine > painted white with the nickel leading edges, Copper colored tips (matches > the tail number) and Carbon Fiber Spinner. I love how it looks as can be > seen in the attached photo. > > 2 - The CATTO came in 19.8lbs lighter than the Sensenich propeller. This > shifted the CG 5/8" aft, still well within the CG limits of the airplane no > matter how I load it. This change in CG made all the difference in the > world on landings. I no longer run out of elevator authority on approach > and can now softly ease the nose gear on the runway. No more dropping > nose. I actually made 3 "squeaker" landings in a row. The good thing is > that it did not change any other flight characteristic I tested, > specifically the stalls under different loading configurations. > > 3 - Right now it looks like it might be pitched a little too much since I > only got 2,625RPMs at 7,000DA and full throttle. However I did pick up 5kts > in cruise and I don't have the nose wheel boot on which will add several > more knots in cruise speed. The climb isn't much different that the > Sensenich. > > 4 - I also got an additional 8" clearance between the propeller and the > ground which is excellent for "rough" field operation. > > 5 - The propeller isn't as smooth as I thought it would be but I think I > have it incorrectly indexed and part of it might be the recently overhauled > engine. Once I have about 50hrs on the engine I will get it dynamically > balanced and this should make a big difference. > > As I fly and test, I will post the results. > > > * > > > * > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kis-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/KIS-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/kis-list Browse Digests http://www.matronics.com/digest/kis-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.