Section 5 Documentation required for design review

5.1.1 Particulars of the gearing are to be submitted with the plans, in triplicate, for all propulsion gears and for auxiliary gears where the transmitted power exceeds 110 kW.

5.2.1 Plans showing details of shafts, bearings (position and type), couplings and any clutches are to be submitted.

5.2.2 Schematic plans of the lubricating oil system, together with pipe material, relief valve and working pressures are to be submitted.

5.2.3 Schematic plans showing arrangements of the gearbox dehumidification arrangements are to be submitted.

5.2.4 Schematic plans showing arrangements of the control, safety and electrical systems are to be submitted.

5.3.1 A System Design Description for the gearing installation, see Vol 2, Pt 1, Ch 3, 3.5 System design description.

5.3.2 A Risk Assessment (RA) as required by Vol 2, Pt 1, Ch 3 Requirements for Design, Construction, Installation and Sea Trials of Engineering Systems is to be submitted. The RA is to be carried out in accordance with the requirements of Vol 2, Pt 1, Ch 3, 18 Risk Assessment (RA) and is to include the following associated sub-systems:

• Clutches.
• Flexible couplings.
• Lubricating oil.
• Cooling arrangements.
• Dehumidification.
• Gearbox mounting.
• Control and monitoring.
• Electrical power supplies.

It is not necessary to consider failure modes relating to the gearbox components.

5.3.3 Details of calculations and tests to establish the service life of safety critical components, including couplings, gearing (where applicable), bearings and seals are to be submitted.

5.3.4 A technical file with bearing particulars, sizes, position of oil inlets, diametral clearances and lubricating oil arrangements are to be submitted.

5.3.5 Calculations demonstrating compliance with requirements for class notations AG1 and AG2 are to be submitted where applicable.

5.3.6 Details of the turning gear and its operational limitations are to be provided.