Engine mount drawing for C-65 on Corvair fuselage

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Sonex1517
Posts: 11
Joined: Thu Jul 09, 2020 8:27 am

Engine mount drawing for C-65 on Corvair fuselage

Post by Sonex1517 »

As part of our EAA 461 project, we have a Continental C-65, and a fuselage that was built for a Corvair. We found the C-65 mount drawing in the plans, but realized that for our fuselage, we need to move the engine forward.

Does anyone have a drawing for such a mount?
danoliver
Posts: 42
Joined: Sat Feb 25, 2017 7:58 am
Location: Cincinnati

Re: Engine mount drawing for C-65 on Corvair fuselage

Post by danoliver »

I've read about folks extending their mounts forward a lot. It''s mentioned in William Wynns Weight and Balance book. Not sure if everyone is just making them per the drawings but extending them a bit or if you have to increase the tubing size or even add in bracing. Surely someone out there who's done it successfully will chime in.
Earl Brown
Posts: 33
Joined: Mon Nov 04, 2019 12:24 pm

Re: Engine mount drawing for C-65 on Corvair fuselage

Post by Earl Brown »

Dan,
Extending the engine mount is mentioned in the Weight and Balance book, but it is mentioned as not being a good way to adjust the CG.

The plane is designed to have the wing move forward and backward to adjust the weight and balance.
Why wouldn't you just move the wing as back as designed? It's far more effective to move the wing back than to move the engine forward.
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