Clasification Society Rulefinder 2020 - Version 9.33 - Fix
Common Structural Rules - Common Structural Rules for Bulk Carriers and Oil Tankers, January 2019 - Part 1 General Hull Requirements - Chapter 2 General Arrangement Design - Section 3 Compartment Arragement - 7 Ballast Tanks

7 Ballast Tanks

7.1 Capacity and disposition of ballast tanks

7.1.1 All ships are to have ballast tanks of sufficient capacity that the ship may operate safely on ballast voyage. The capacity of ballast is to be at least such that, in any ballast condition at any part of the voyage, including the conditions consisting of lightweight plus ballast only, the ship’s draught and trim can meet the requirements defined in:

  • For oil tankers, Ch 4, Sec 8, [3.1].
  • In addition, for oil tankers, the moulded draught amidships, Tmid, excluding any hogging or sagging correction, is not to be less than:

    Tmid = 2.0 + 0.02 L, in m.

  • For bulk carriers, Ch 4, Sec 8, [4.1].

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