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CG on a Bi-Plane

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Old 11-26-2003 | 07:29 PM
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Default CG on a Bi-Plane

Does anyone know how to check the CG on a Staggerd Wing Bi-Plane? I inherited this Bipe and have no idea who made it I just completed putting the radio gear and engine on it but I'm not sure how to check the CG do you use the top wing or the bottom?

Thanks
Old 11-26-2003 | 09:17 PM
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Default RE: CG on a Bi-Plane

You have to figure both wings into the equation. You use the leading edge on the "forward" wing usually the top, and use the trailing edge of the aft positioned wing usually the bottom to figure your MAC.
Old 11-26-2003 | 10:20 PM
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Default RE: CG on a Bi-Plane

Go to ,

http://www.lvrcs.com

and then Articles>> Building Tips,

There is a article written by Kerry Sterner.

It has CG calculation for biplanes.
Old 11-27-2003 | 09:32 AM
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Default RE: CG on a Bi-Plane

Thanks Cobra that was a great link
Old 11-29-2003 | 02:23 AM
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Default RE: CG on a Bi-Plane

A good starting point will be at 25% of the MAC. Don't go beyond 30% unless you are an experienced flyer.

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