C of G - RCCanada - Canada Radio Controlled Hobby Forum
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Fixed Wing Discuss fixed wing aircraft.

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Old 03-13-2015, 10:06 PM   #1
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C of G

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Manual has 4" equals 27% of MAC (Mean Average Chord) in in for C of G

to measue it do I measue the 4 along the outside surface of the wing or is it from Leading edge to trailing edge line throught middle of wing
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Old 03-13-2015, 10:10 PM   #2
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Re: C of G

Datum line.
Imaginary line from leading edge/trailing edge.
The simplest way is to use a 12" square. Hook it over the leading edge. Chances are it will hit the high spot on the wing at 4".
Hope this helps.

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Old 03-13-2015, 10:13 PM   #3
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Re: C of G

I was struggling with this recently and stumbled over a calculator that might help:

COG Calculator

I was reading this:


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