| Objective: This Chapter outlines the minimum requirements for
steering gear, which shall be in accordance with the requirements of
a Recognised Organisation. The Class Notation or Survey shall cover
the minimum aspects defined within this chapter. Due regard shall be
paid to the requirements for emergency steering.
|
9A.1 General Requirements
(1) The steering gear and its installation shall, in general, meet with the
requirements of a Recognised Organisation.
(2) In the event that the above requirements cannot be met on an existing vessel, the
Administration may be requested to consider and approve alternative arrangements to
achieve adequate safety standards.
(3) Vessels shall be provided with means for directional control of adequate strength
and suitable design to enable the heading and direction of travel to be effectively
controlled at all operating speeds. When appropriate to the safe steering of the
vessel, the steering gear shall be power operated in accordance with the
requirements of the Administration.
(4) When the steering gear is fitted with remote control, arrangements shall be made
for emergency steering in the event of a failure of such control.
(5) The emergency steering position shall be fitted with:
9A.2 Additional Equivalence Considerations
(1) None
9A.3 Alternative Design and Arrangements
(1) Vessels may follow Section 1.9 on Alternative Design and Arrangements for this
chapter as allowed by SOLAS II-1/55.
(2) The engineering analysis required by 1.9(3) shall be prepared and
submitted to the Administration, based on the guidelinesfootnote and shall include, as a minimum, the following
engineering analysis elements:
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(a) determination of the ship type, machinery, electrical installations and
space(s) concerned;
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(b) identification of the prescriptive requirement(s) with which the
machinery and electrical installations will not comply;
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(c) identification of the reason the proposed design will not meet the
prescriptive requirements supported by compliance with other recognized
engineering or industry standards;
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(d) determination of the performance criteria for the ship, machinery,
electrical installation or the space(s) concerned addressed by the relevant
prescriptive requirement(s):
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(i) performance criteria shall provide a level of safety not inferior
to the relevant prescriptive requirements contained in SOLAS II-1 parts C, D and E; and
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(ii) performance criteria shall be quantifiable and measurable;
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(e) detailed description of the alternative design and arrangements,
including a list of the assumptions used in the design and any proposed
operational restrictions or conditions;
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(f) technical justification demonstrating that the alternative design and
arrangements meet the safety performance criteria; and
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(g) risk assessment based on identification of the potential faults and
hazards associated with the proposal.