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Mastering Center of Gravity: The Core of Aircraft Stability
The center of gravity (CG) is arguably the single most critical factor influencing your RC aircraft’s stability, control response, and stall characteristics. Even minor deviations—as little as 2–3 mm—can radically change how your model flies. While many pilots rely on “rule-of-thumb” placement, precise CG tuning requires a technical approach using measurements, calculations, and in-flight testing. 1. Calculating the Mean Aerodynamic Chord (MAC) The CG is defined relative to the Mean Aerodynamic Chord: the theoretical average...
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