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 shall cover the
minimum aspects defined within this Chapter. Due regard shall be
paid to the requirements for emergency steering.
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9B.1 General Requirements
(1) For existing and new vessels, the steering gear and its installation shall meet
the standards of SOLAS II-1/Part C - Machinery installations for cargo vessels, so
far as it is reasonable and practicable to do so.
(2) In any case, the intention shall be to achieve a standard of safety which is at
least equivalent to the standard of SOLAS. Equivalence may be achieved by
incorporating increased requirements to balance deficiencies and thereby achieve the
required overall standard.
9B.2 Additional Equivalence Considerations
(1) None
9B.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.