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The CG Position’s Influence on Pitch Stability
The location of the center of gravity (CG) has a major impact on longitudinal stability, the selection of the horizontal tail’s angle of incidence and on the model aircraft’s maneuverability. For sport models, it’s customary to locate the CG at the wing’s aerodynamic center, which is 25% of the mean aerodynamic cord (MAC). There is, however, a range of CGs both ahead of and behind the wing’s aerodynamic center. These positions result in varying degrees...
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