Section 5 Shell envelope plating
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Ships, July 2022 - Part 4 Ship Structures (Ship Types) - Chapter 6 Trawlers and Fishing Vessels - Section 5 Shell envelope plating

Section 5 Shell envelope plating

Parent topic: Chapter 6 Trawlers and Fishing Vessels

5.1 Shell plating

5.1.1 The thickness of shell plating is to be not less than that required by Pt 4, Ch 1, 5 Shell envelope plating but in no case is it to be less than the following:

5.1.2 For single deck side trawlers the thickness derived from the formulae in Pt 4, Ch 6, 5.1 Shell plating 5.1.1 is to be increased by 10 per cent.

5.1.3 When nets or control wires are in contact with the ship's side, such as below the gallows in a side trawler, the side shell plating is to be increased by 40 per cent.

5.1.4 Where a bar keel is fitted, the breadth of the garboard strake is to be not less than 760 mm, and the thickness is to be 10 per cent greater than the bottom shell.

5.1.5 The thickness of the bottom shell plating is to be increased by 10 per cent where intercostal girders are not fitted.

5.1.6 For increase to sheerstrake at the break of a raised deck, see Pt 4, Ch 1, 5 Shell envelope plating.

5.1.7 Cope irons are to be fitted under gallows or any other area where excessive wear could occur.

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