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- - cg (https://www.rcuniverse.com/forum/3d-electric-flying-237/5780466-cg.html)

sevacko

04-27-2007 08:03 PM

how you you find the cg point of a plane i'm building a rally nice foamy but having trouble finding the cg can any one help

jzrf6c

04-27-2007 08:27 PM

RE: cg

Check out the internet. There are many places that will guide you in detail. Basically, the C.G. should be located at 25 - 30% of the wing cord length. Problems arise in determining the cord length when the wing is swept back or not symmetrical.

Flypaper 2

04-28-2007 09:55 AM

RE: cg

1 Attachment(s)

This is a cool tool for finding The CG. When you find The MAC, which means Mean Aerodynamic Chord, or average chord. Measure back on that point, 30% on an aerobatic plane. For instance, if the chord at the MAC is 6 in., then the CG would be 2 in. back from the leading edge at the MAC point.

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