SOLAS requirements for totally enclosed lifeboats
By marinesafety
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LSA Code requirement: Lifebuoys for quick‑release shall have sufficient mass to pull and activate the self‑activating smoke signal by gravity when dropped. Minimum mass ≥4 kg, practical shipboard product is 4.3 kg.
Lifebuoy quick release box also called MOB throw‑off arrangement, deigned under SOLAS Chapter III and LSA Code.
Two quick‑release assemblies shall be fitted, one on each bridge wing (port & starboard). These two lifebuoys shall be fitted with self‑igniting light and self‑activating smoke signal, capable of being rapidly cast from the navigating bridge.
Mandatory for all international sea‑going ships.
| Type | GRP Slide Bracket |
| Model | Port side and starboard side (2pcs=1set) |
| Size | 760×700×200mm (for 1pcs) |
| Main Material | Resin and fiberglass mat composite |
| Metal Material | SS304 |
| Suit for | 4.3kg lifebuoy rings |
| Color | Red-orange |
| Compliant to | SOLAS and LSA code |





