Calculate your model’s CG the full-scale way

Nov 06, 2012 No Comments by

In this how-to, Martin Zeller shares how to precisely calculate your model’s center of gravity. He writes, “I recently finished a scratch built, ¼ scale, WACO UPF-7.  The ship was 38 lbs with 16 sq ft of wing area.  It is a difficult maneuver to pick up a large aircraft like this to determine the center of gravity.  In addition, with a biplane, the required CG can be ahead of the lower wing leading edge, out in space. There is no ideal location to hold and lift it so I decided that the best approach would be to use the full scale technique.”



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Model Airplane News Executive editor. About me: I’m a publishing professional who has a passion for aviation and RC, and I love creating issues, books and a website that help RC pilots to enjoy this sport even more. I admire scale aircraft and enjoy the convenience of flying smaller electrics.

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