Section 3 Propulsion Systems, Steering Equipment and associated Control
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Construction & Classification of Submersibles & Diving Systems, July 2022 - Part 5 Main and Auxiliary Machinery, Systems and Equipment - Chapter 2 Machinery - Section 3 Propulsion Systems, Steering Equipment and associated Control

Section 3 Propulsion Systems, Steering Equipment and associated Control

Parent topic: Chapter 2 Machinery

3.1 General

3.1.1 Submersibles are to be provided with adequate means for surface and underwater manoeuvring. Adequate manoeuvring controls and displays are to be provided for the safe operation of submersibles.

3.1.2 Submersibles are to be provided with propulsion systems and/or thrusters and steering equipment that are suitable for the intended service. The output of the propulsion systems and/or thrusters is to be sufficient to achieve the submersible’s manoeuvring speed.

3.1.3 Propulsion systems, thrusters, steering equipment, and their supporting structures are to be designed for continuous service and for the intended depth. Motor casings are to be designed for the intended depth or are to be pressure compensated.

3.1.4 Detailed plans of foundations or attachments for propulsion systems, thrusters, and steering equipment are to be submitted for review.

3.2 Protection of Shafting

3.2.1 Shafts exposed to seawater are to be protected against galvanic corrosion. The use of graphite-impregnated packing in stuffing boxes is to be avoided because of the possibility of corrosion. Stainless steel, nickel-copper alloys or other shafting materials adversely affected by stagnant water are to be provided with a positive means of water circulation in sterntubes or similar enclosures that tend to trap water in contact with the shafting.

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