🔍 Key Concepts
• Metacentric height (GM) and what a negative initial GM means for stability
• Difference between steady angle due to instability vs. a temporary angle from external forces
• Definitions of trim, yaw, heel, and loll in basic stability and shiphandling
💭 Think About
• Ask yourself: when a vessel has a negative GM, is it initially stable or unstable, and what does it tend to do in still water?
• Which term describes a permanent angle at rest caused by a loss of stability, rather than by wind, turning, or loading operations?
• Match each option (trim, yaw, heel, loll) to its plain‑language meaning and eliminate the ones that involve fore‑and‑aft change, heading change, or external forces.
✅ Before You Answer
• Be sure you know that trim is related to bow vs. stern immersion (fore‑and‑aft), not side‑to‑side.
• Confirm which term refers specifically to a transverse angle in still water caused by negative GM rather than by wind or turning.
• Verify that yaw is associated with change in heading about the vertical axis, not a static list angle.