(a) The minimum summer freeboards must be computed in accordance with §§42.20-5 (a) and (b), 42.20-13, 42.20-15, 42.20-20, 42.20-25, 42.20-30, 42.20-35, 42.20-60, and 42.20-65, except that §42.20-60 is modified by substituting the percentages in table 42.25-20(a) for those given in §42.20-60:
Table 42.25-20(a)—Percentage of Deduction for Superstructure
[Total Effective Length of Superstructure]
| 0 | 0.1L | 0.2L | 0.3L | 0.4L | 0.5L | 0.6L | 0.7L | 0.8L | 0.9L | 1.0L | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Percentage of deduction for all types of superstructure1 | 20 | 31 | 42 | 53 | 64 | 70 | 76 | 82 | 88 | 94 | 100 |
1Percentages at intermediate lengths of superstructures shall be obtained by linear interpolation.
(b) The winter timber freeboard shall be obtained by adding to the summer timber freeboard one thirty-sixth of the molded summer timber draft.
(c) The winter North Atlantic timber freeboard shall be the same as the winter North Atlantic freeboard prescribed in §42.20-75(d)(1).
(d) The tropical timber freeboard shall be obtained by deducting from the summer timber freeboard one forty-eighth of the molded summer timber draft.
(e) The fresh water timber freeboard shall be computed in accordance with §42.20-75(e) (1) or (2) based on the summer timber load waterline.
[CGFR 68-60, 33 FR 10067, July 12, 1968, as amended by CGFR 68-126, 34 FR 9016, June 5, 1969; CGD 79-153, 48 FR 38650, Aug. 25, 1983]
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