2.3 Damage assumptions
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.370(93) – Amendments to The International Code for The Construction and Equipment of Ships Carrying Liquefied Gases In Bulk (IGC Code) – (Adopted on 22 May 2014) - Annex - Amendments to The International Code for The Construction and Equipment of Ships Carrying Liquefied Gases In Bulk (IGC Code) - Chapter 2 — Ship Survival Capability and Location of Cargo Tanks - 2.3 Damage assumptions

2.3 Damage assumptions

  2.3.1 The assumed maximum extent of damage shall be:

.1 Side damage
.1.1 Longitudinal extent: 1/3 L2/3 or 14.5 m, whichever is less
.1.2 Transverse extent:
measured inboard from the moulded line of the outer shell at right angles to the centreline at the level of the summer waterline
B/5 or 11.5 m, whichever is less
.1.3 Vertical extent:
from the moulded line of the outer shell
Upwards, without limit
.2 Bottom damage: For 0.3 L from the forward perpendicular of the ship Any other part of the ship
.2.1 Longitudinal extent: 1/3L2/3 or 14.5 m, whichever is less 1/3L2/3 or 14.5 m, whichever is less
.2.2 Transverse extent: B/6 or 10 m, whichever is less B/6 or 5 m, whichever is less
.2.3 Vertical extent: B/15 or 2 m, whichever is less, measured from the moulded line of the bottom shell plating at centreline (see 2.4.3) B/15 or 2 m, whichever is less measured from the moulded line of the bottom shell plating at centreline (see 2.4.3)

  2.3.2 Other damage

  2.3.2.1 If any damage of a lesser extent than the maximum damage specified in 2.3.1 would result in a more severe condition, such damage shall be assumed.

  2.3.2.2 Local damage anywhere in the cargo area extending inboard distance "d" as defined in 2.4.1, measured normal to the moulded line of the outer shell shall be considered. Bulkheads shall be assumed damaged when the relevant subparagraphs of 2.6.1 apply. If a damage of a lesser extent than "d" would result in a more severe condition, such damage shall be assumed.


Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.