1. Consequently the " pitching moment coefficient " for a symmetric airfoil is zero. 2. :: M _ \ alpha Pitching moment due to incidence-the static stability term. 3. The coefficients used for moment are similar to coefficients of chord is used for pitching moment . 4. Subsequent investigation revealed that the aircraft's fuselage was subject to an aerodynamic pitching moment of extreme sensitivity. 5. "' Pitching moment coefficient "'is fundamental to the definition of aerodynamic center of an airfoil. 6. A drawback of the use of trailing edge flaps is that they produce significant negative pitching moment when in use. 7. Large elevators on the tailplane control fuselage attitude and provide reaction to pitching moments from the wing and variation on rotor disc angle. 8. The forces are considered acting at the quarter-chord point, and the pitching moment is determined to resolve the aerodynamic forces. 9. Similarly, a small decrease in angle of attack will cause the pitching moment to change so that the angle of attack increases. 10. This results in a power application causing a nose-down pitching moment and increases the risk of tail to main rotor contact.
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