2.3 External structure

Clasification Society 2024 - Version 9.40

Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.981 – Guidelines for the Design, Construction and Operation of Passenger Submersible Craft – (29 January 2001)Amended by MSC/Circ.1125 - Annex - Guidelines for the Design, Construction and Operation of Passenger Submersible Craft - Chapter 2 - Design and Construction - 2.3 External structure

2.3 External structure

2.3.1 Exostructure

2.3.1.1 The craft should be provided with an exostructure to prevent damage to the pressure hull and other vital components such as ballast systems. Externally mounted equipment such as thrusters, manipulators, etc. should be designed to minimize risk of entanglement or fouling.

2.3.1.2 All parts of the exostructure which are designed for free flooding should be provided with openings in such a way that void spaces are fully flooded and vented.

2.3.2 Access areas

2.3.2.1 Adequate means, such as guardrails and anti-slip surfaces, should be provided to protect passengers and crew, taking into account all operational conditions likely to be encountered.

2.3.2.2 Safe means of boarding passengers should be provided, taking into account the relative heights of the passenger submersible craft and the boarding area, wave effects, protection of the craft appurtenances and the hull of the transfer vessel, where applicable.

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