Regulation 37 - Deduction for superstructures and trunks
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - International Conventions - Load Lines, 1966/1988 - International Convention on Load Lines, 1966, as Amended by the Protocol of 1988 - Annex I - Regulations for Determining Load Lines - Chapter III - Freeboards - Regulation 37 - Deduction for superstructures and trunks

Regulation 37 - Deduction for superstructures and trunks

  (1) Where the effective length of superstructures and trunks is 1L, the deduction from the freeboard shall be 350 mm at 24 m length of ship, 860 mm at 85 m length and 1,070 mm at 122 m length and above. Deductions at intermediate lengths shall be obtained by linear interpolation.

  (2) Where the total effective length of superstructures and trunks is less than 1L, the deduction shall be a percentage obtained from the following table:

Table 37.1 Percentage of deduction for type 'A' and 'B' ships

  Total effective length of superstructures and trunks
0 0.1 L 0.2 L 0.3 L 0.4 L 0.5 L 0.6 L 0.7 L 0.8 L 0.9 L 1 L
Percentage of deduction for all types of superstructure 0 7 14 21 31 41 52 63 75.3 87.7 100
  Percentages at intermediate lengths of superstructures and trunks shall be obtained by linear interpolation.

  (3) For ships of type 'B' where the effective length of a forecastle is less than 0.07L no deduction is allowed.


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