Today's Message Index:
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1. 06:34 PM - O-360 and Catto FP prop (Scott)
2. 07:00 PM - Re: O-360 and Catto FP prop (Matt Dralle)
Message 1
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| Subject: | O-360 and Catto FP prop |
Hi folks,
I am seeking information from those who have installed an O-360 with a
Catto three bladed prop on their RV-7. I am getting ready to order my
finishing kit and have one final decision to make before the order. My
concern lies in a potential aft CG issue when installing an O-360 and a
Catto FP prop. As I understand it my options are one of two
installations.
Option 1 is to install a weight of X lbs behind the prop to shift the CG
forward. Of course, this reduces useful payload by X lbs may be the
least expensive.
Option 2 is to use a engine mount for a O-320 shifting the engine
forward with the ensuing CG shift. This option requires an extended
cowling (the Vans version might work, I believe I can order an extended
Sam James cowl. Not sure about the Sam James cowl working.) This is the
more expensive solution.
If you have an RV-7 configured with an O-360 and a FB prop; would you
mind sharing your CG issues if any? I appreciate any information you can
give.
As a final note, I have considered CS and have read extensively on the
performance issues. I have decided on FP.
Thanks for your time.
Scott
Message 2
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| Subject: | Re: O-360 and Catto FP prop |
At 06:33 PM 6/13/2013 Thursday, you wrote:
>
>Hi folks,
>
>As a final note, I have considered CS and have read extensively on the performance
issues. I have decided on FP.
>
>Thanks for your time.
>
>Scott
Hi Scott,
Reconsider the CS prop. My RV-6 with an O-360 and a Hartzell prop is the perfect
combination of climb and cruse performance. I love being able dial the prop
back to 2350 for cruse. In the RV-8 with the same prop and the IO-390, I don't
have the RPM restriction and routinely dial it back to 2150 with lots of MP
for a REALLY quiet, high-speed cruse. Oh, and the climb is outrageous.
I wouldn't own an RV without a CS prop!
-
Matt Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
RV-6 #20916 N360EM "The Flyer"
http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
Status: 150+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode
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