Which rotational movement is up and down about the Y axis?

Which rotational movement is up and down about the Y axis?

• A. Pitch
• B. Roll
• C. Yaw
• D. List

Answer: (A)

Pitch is rotation about the lateral (side-to-side) axis. When you rotate about this axis, the bow moves up or down relative to the horizon—nose up or nose down. Roll rotates about the longitudinal axis (along the length of the vessel) and tilts bow to starboard or port. Yaw rotates about the vertical axis and turns the bow left or right. Since the movement described is up and down about the Y axis, pitch is the correct term.

Pitch is rotation about the lateral (side-to-side) axis. When you rotate about this axis, the bow moves up or down relative to the horizon—nose up or nose down. Roll rotates about the longitudinal axis (along the length of the vessel) and tilts bow to starboard or port. Yaw rotates about the vertical axis and turns the bow left or right. Since the movement described is up and down about the Y axis, pitch is the correct term.