USCG Exam PracticeVessel stability — metacentric height, free surface
Under 46 CFR §28.545, when a vessel lifts a weight over the side, at what maximum angle of heel must the intersection of the heeling arm curve and the righting arm curve occur?
- A. 25° (0.44 radians)
- B. 15° (0.26 radians)
- C. 40° (0.70 radians)
- ✓ 10° (0.17 radians)Correct
Why D is correct
46 CFR §28.545(c) states that the angle of intersection of the heeling arm curve resulting from the lifting moment and the righting arm curve must not be at an angle of more than 10° (0.17 radians). The other angles cited appear elsewhere in the stability regulations but do not apply to this specific requirement.
Cited:46 CFR §28.545