10-05-2019, 10:01 PM
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frustrated aero
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Join Date: Sep 2006
Location: Duncan, OK
Posts: 832
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According to the Estes instructions for the 1/45 LJII, the balance point should be 6.25" from the bottom of the body tube (including motor, parachute, and wadding). Scaling that to this model puts the balance point at 4.05". In the "Tips" thread a discussion took place about the CG location and George Gassaway stated "The known-to-be-stable CG location for the Little Joe-II is at, or above, the "N", in UNITED STATES (if the lettering is applied in the proper location)." This puts it closer to 4.23", so I went for that. I balanced the model ready-to-fly with a C6-5 and then added nose weight to move the balance point to about 4.23" and it came out near the "N".
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