🔍 Key Concepts

• Understand what an autopilot weather control actually does on a steering system • Know the difference between yaw, pitch, roll, and leeway as ship motions/effects • Think about which motion causes a vessel to swing off course left and right, requiring constant rudder corrections

💭 Think About

• Which of these choices describes side-to-side turning of the ship's heading about a vertical axis, affecting course-keeping? • Which motions (pitch, roll) are mainly up-and-down or side-tilting, and are they directly corrected by a course-keeping autopilot? • Is leeway a change in heading or a sideways drift due to wind and current while still pointing in roughly the same direction?

✅ Before You Answer

• Be clear on the definition of each motion: yaw, pitch, roll, leeway before choosing • Ask: Which motion would an autopilot need to smooth out so it isn’t over-correcting in heavy seas? • Verify which of these effects is tied directly to course stability about the vertical axis rather than vertical or lateral movement