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A rotary wing is typically unstable in ________

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in Aircraft Maintenance by (829k points)
A rotary wing is typically unstable in ________

(a) Yaw

(b) Roll

(c) Pitch

(d) Bank

The question was posed to me in unit test.

Asked question is from Overview of an Aircraft-2 in section Aircraft Systems and Aviation Overview of Aircraft Maintenance

1 Answer

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The correct option is (a) Yaw

For explanation: A rotary wing is typically unstable in yaw. Such wings usually require a vertical stabilizer in order to balance the unstable yaw. In case the yaw is unbalanced, the aircraft may go out of control and crash.

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