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Yawing moment is positive if __________(a) right wing goes back(b) right wing comes forward(c) if nose pitches up(d) if nose pitches downThis question was addressed to me by my school teacher while I was bunking the class.Question is from Lateral-Directional Static Stability and Control in portion Stability, Control, and Handling Qualities of Aircraft Design

Answer»

Correct answer is (a) RIGHT wing goes back

To explain I would SAY: Yawing moment is said to be positive by sign convention if right wing goes back and VICE versa. If nose pitches up then it is a positive pitching moment and similarly if nose pitches down it is CALLED negative pitching moment as per the sign convention is considered.



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