 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
galinhdz(at)gmail.com
Guest
|
 Posted: Tue Dec 02, 2014 6:00 pm Post subject: 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.
| | - The Matronics KIS-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?KIS-List |
|
| Description: |
|
| Filesize: |
1.3 MB |
| Viewed: |
2005 Time(s) |
|
|
|
| Back to top |
|
 |
Robert Reed
Joined: 22 Oct 2009
Posts: 331
Location: Dallas/Ft.Worth
|
| Posted: Wed Dec 03, 2014 1:51 pm Post subject: 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 <galinhdz(at)gmail.com>
To: "kis-list(at)matronics.com" <kis-list(at)matronics.com>
Sent: Tuesday, December 2, 2014 7:59 PM
Subject: 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.
[quote][b]
| | - The Matronics KIS-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?KIS-List |
|
|
|
| Back to top |
|
|
galinhdz(at)gmail.com
Guest
|
| Posted: Wed Dec 03, 2014 5:28 pm Post subject: 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 <robertr237(at)att.net (robertr237(at)att.net)> wrote:
[quote]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 <galinhdz(at)gmail.com (galinhdz(at)gmail.com)>
To: "kis-list(at)matronics.com (kis-list(at)matronics.com)" <kis-list(at)matronics.com (kis-list(at)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.
| Quote: |
_blank">www.aeroelectric.com
.com" target="_blank">www.buildersbooks.com
="_blank">www.homebuilthelp.com
="_blank">www.mypilotstore.com
ank">www.mrrace.com
_blank">http://www.matronics.com/contribution
et="_blank">http://www.matronics.com/Navigator?KIS-List
tp://forums.matronics.com
|
[b]
| | - The Matronics KIS-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?KIS-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
