Wednesday, August 12, 2009

Nike-Apache Stability

Part of the readiness of a cert flight is being able to prove stability. The CG of the Nike-Apache, loaded with an 29/180 motor, is about 37.4" aft of the nose. The CP, calculated on my calculator, including all 3 transitions and 2 fin sets, is at 41.8" aft of the nose. This provides an ample 4.4" stability margin, equal to 1.7 calibers.

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