Section
15 Navigation and manoeuvring systems
15.1 Steering gear
15.1.1 The requirements for steering gear are given in Pt 6, Ch 2, 15.1 Steering gear of the Rules for Ships, which are to be complied
with. Additions or amendments to these requirements are given in the following
paragraph(s) of this sub-Section.
15.2 Thruster systems for steering
15.2.1 Where azimuth or rotatable thruster units, used as the sole means of
steering, are electrically driven, the requirements of Pt 5, Ch 20, 5 Electrical equipment of the Rules for Ships are to be complied with.
15.3 Thruster systems for dynamic
positioning
15.4 Thruster systems for manoeuvring
15.5 Transverse thrust units
15.6 Thruster systems for thruster-assisted
mooring systems
15.7 Navigation lights and sound
signals
15.7.1 The requirements for navigation lights are given in IEC 61892-5:2010,
Mobile and fixed offshore units – Electrical installations – Part 5: Mobile
units, Section 7 and Pt 6, Ch 2, 15.6 Navigation lights of the Rules for Ships, which are to
be complied with where applicable. Additions or amendments to these requirements are
given in the following paragraph(s) of this sub-Section.
15.8 Navigational aids
15.8.2 When a unit is stationary and engaged in operations, navigation aids
(lanterns and sound signals) shall be provided in accordance with the International
Association of Marine Aids to Navigation and Lighthouse Authorities (IALA)
requirements and the requirements of the coastal state in whose territorial sea or
on whose continental shelf the unit is operating.
15.9 Helideck and aircraft warning
lights
15.9.1 Helideck perimeter lighting, helideck floodlights, aircraft warning
lights, status (wave-off) lights and unit identification signage are to comply with
UK Standard CAP 437, Standards for Offshore Helicopter Landing Areas or the
requirements of the coastal state in whose territorial sea or on whose continental
shelf the unit is operating.
15.9.2 Helideck perimeter lighting, helideck floodlights, aircraft warning
lights and status lights are to be supplied by a UPS backed supply. The UPS autonomy
is to be agreed with LR and the unit Owner and be in accordance with the
requirements of any relevant Statutory Regulations of the National Administrations
in the country of registration and area of operation.
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