Section 2 Wave environment
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules for the Classification of Trimarans, July 2022 - Volume 1 Regulations and Structural Arrangements - Part 5 Environmental Loads - Chapter 2 Environmental Conditions - Section 2 Wave environment

Section 2 Wave environment

Parent topic: Chapter 2 Environmental Conditions

2.1 General

2.1.1 Service requirements are to be categorised by the owner according to the notations permitted in the Complementary Rules.

2.1.2 The applicable service area notations are as described in Vol 1, Pt 5, Ch 2, 2.2 Service areas and factors.

2.2 Service areas and factors

2.2.1 All ships for which the Complementary Rules are the Rules and Regulations for the Classification of Ships (hereinafter referred to as the Rules for Ships) are assumed to operate an unrestricted world-wide service.

2.2.2 All ships for which the Complementary Rules are the Rules and Regulations for the Classification of Naval Ships (hereinafter referred to as the Rules for Naval Ships) are to be assigned a specific service area in accordance with Vol 1, Pt 5, Ch 2 Environmental Conditions of the Rules for Naval Ships. Any such vessel shall be assigned a service area notation SA followed by a number or letter, e.g. SA1. A service area notation of SA1 indicates unrestricted world-wide operation.

2.2.3 All ships for which the Complementary Rules are the Rules and Regulations for the Classification of Special Service Craft (hereinafter referred to as the Rules for Special Service Craft) are to be assigned a specific service group in accordance with Pt 1, Ch 2, 3 Character of classification and class notations of the Rules for Special Service Craft. Any such vessel shall be assigned a service area restriction notation G followed by a number, e.g. G1. Craft classed under the Rules for Special Service Craft, for service groups G1 to G5, are not suitable for unrestricted service except as noted in the service area restriction notation.

2.3 Wave environment

2.3.1 If the Complementary Rules are the Rules for Ships, the factors applied for unrestricted service are based upon wave conditions considered to be the most severe, corresponding to the North Atlantic.

2.3.2 If the Complementary Rules are the Rules for Naval Ships, the wave conditions relate to the service area and are given in Vol 1, Pt 5, Ch 2, 2 Wave environment of the Rules for Naval Ships.

2.3.3 If the Complementary Rules are the Rules for Special Service Craft, the wave conditions relate to the service group and are given in Pt 5, Ch 2 Local Design Loads of the Rules for Special Service Craft.

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