Section 1 Rule philosophy

1.1.1 The Rules for the Classification of Trimarans (hereinafter referred to as the Trimaran Rules), are applicable to those type of craft which are defined in Vol 1, Pt 1, Ch 1, 3.1 Vessel description.

1.1.2 The Trimaran Rules are configured such that they are to be applied in conjunction with the following Lloyd’s Register (hereinafter referred to as LR) Rules, as appropriate to the vessel type:

• Rules and Regulations for the Classification of Naval Ships (hereinafter referred to as the Rules for Naval Ships).
• Rules and Regulations for the Classification of Ships (hereinafter referred to as the Rules for Ships).
• Rules and Regulations for the Classification of Special Service Craft (hereinafter referred to as the Rules for Special Service Craft).

The selected of these three LR Rules shall hereinafter be referred to as the Complementary Rules.

1.1.3 All Parts of the appropriate Complementary Rules are to be followed as listed in Table 1.1.1 Applicability of Complementary Rules except as otherwise noted in the Trimaran Rules. Those sections noted by ‘Tri’ are given in the Trimaran Rules.

1.1.4 If the Complementary Rules are the Rules for Special Service Craft, the multi-hull requirements do not apply in the case of the Loads, Scantling Determination and Structural Design Assessment Parts but may apply to other Parts.