Marine Stability Criteria: SOLAS_Ch2
Marine intact and damage stability regulatory criteria from IMO, SOLAS, USCG, ABS, DNV, and ISO standards. Covers GZ righting arm areas, GM minimums, vanishing stability angles, weather criterion area ratios, and maximum heel angles for passenger ships, cargo ships, tankers, fishing vessels, offshore platforms, sailing yachts, and small craft in intact, one-compartment damage, and two-compartment damage conditions.
| criteria source | sk | condition | notes | parameter | required unit | required value (varies) | vessel type |
|---|---|---|---|---|---|---|---|
| SOLAS_Ch2 | cargo_ship#GZ_area_0_to_30#intact | intact | SOLAS II-1 applies 2008 IS Code intact stability criteria identical to IMO A.749 successor. Area 0–30° ≥ 0.055 m·rad. | GZ_area_0_to_30 | m·rad | 0.055 | cargo_ship |
| SOLAS_Ch2 | cargo_ship#GZ_area_0_to_40#intact | intact | SOLAS II-1 intact stability: area 0–40° ≥ 0.090 m·rad. | GZ_area_0_to_40 | m·rad | 0.09 | cargo_ship |
| SOLAS_Ch2 | cargo_ship#angle_of_vanishing_stability#intact | intact | Minimum angle of vanishing stability ≥ 50° for general cargo ships per SOLAS good practice; not explicitly mandated but referenced in classification rules. | angle_of_vanishing_stability | deg | 50 | cargo_ship |
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