Lateral stability refers to stability about which axis?

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Study for the Pilot's Handbook of Aeronautical Knowledge Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Lateral stability refers to stability about which axis?

Explanation:
Lateral stability is about the airplane’s stability around the lateral axis, which runs from wingtip towingtip. Rotation about this axis is pitch (nose up or nose down). A stable airplane has a restoring tendency about this axis, so after a disturbance that pitches the nose, aerodynamic forces work to bring the aircraft back toward level flight. Knowing the axis helps: the longitudinal axis relates to roll, the vertical axis to yaw, and the lateral axis to pitch. So the best description is stability about the lateral axis, with a tendency to return to level flight after a pitch disturbance.

Lateral stability is about the airplane’s stability around the lateral axis, which runs from wingtip towingtip. Rotation about this axis is pitch (nose up or nose down). A stable airplane has a restoring tendency about this axis, so after a disturbance that pitches the nose, aerodynamic forces work to bring the aircraft back toward level flight. Knowing the axis helps: the longitudinal axis relates to roll, the vertical axis to yaw, and the lateral axis to pitch. So the best description is stability about the lateral axis, with a tendency to return to level flight after a pitch disturbance.

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