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Old Sep 05, 2007, 06:53 PM
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CG Calculator with fuselage in or out

I took the Ga. Goose plans and ran the CoG Calculator using the full area of the wings vs only the area outside of the fuselage. Using the full area, the CoG moved forward by 0.260 inch or the same as 13% static margin instead of 10%. I believe I adopted the method of omitting the fuselage because my original design seemed nose heavy doing the bunny hop and the new figures moved the CoG back a little.You may play it safer by using the full area for maiden and then move the CoG back to 7% static margin. I do not care for 20 to 25% margin as some recommend. Low margin gives you more control up front before stall. Charles
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