Roll is rotation about which axis?

Roll is rotation about which axis?

• A. Lateral axis
• B. Vertical axis
• C. Longitudinal axis
• D. Normal axis

Answer: (C)

Roll refers to rotation about the axis that runs from the nose to the tail of the aircraft—the longitudinal axis. When you roll, the wings tilt toward and away from the horizon: one wing drops while the other rises, while the nose and tail roughly maintain their forward direction. This is why banking happens during a roll. In contrast, pitch is rotation about the axis from wingtip to wingtip (the lateral axis), which raises or lowers the nose, and yaw is rotation about the vertical axis, which turns the aircraft left or right without tilting the wings. The normal axis isn’t used to describe standard roll movements. So roll is specifically rotation about the longitudinal axis.

Roll refers to rotation about the axis that runs from the nose to the tail of the aircraft—the longitudinal axis. When you roll, the wings tilt toward and away from the horizon: one wing drops while the other rises, while the nose and tail roughly maintain their forward direction. This is why banking happens during a roll. In contrast, pitch is rotation about the axis from wingtip to wingtip (the lateral axis), which raises or lowers the nose, and yaw is rotation about the vertical axis, which turns the aircraft left or right without tilting the wings. The normal axis isn’t used to describe standard roll movements. So roll is specifically rotation about the longitudinal axis.