sahrens
Well Known Member
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
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