46 C.F.R. § 169.529
(b) The following equipment, carried in addition to the equipment required under 46 CFR 199.175, must meet the following requirements:
(3) Mast and sail. A unit, consisting of a standing lug sail together with the necessary spars and rigging, must be provided in accordance with table 1 to this section, except that motor-propelled lifeboats need not carry a mast or sails. The sails must be of good quality canvas, or other material acceptable to the Commandant, colored Indian Orange (Cable No. 70072, Standard Color Card of America; incorporated by reference, see § 169.115). Rigging must consist of galvanized wire rope not less than 3/16-inch in diameter. The mast and sail must be protected by a suitable cover.
| Length of lifeboat, feet | Standing lug sail | Commercial designation number | Mast 1 | Yard 1 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Over— | Not over— | Area, square feet | Luff and head lengths | Leach length | Foot length | Clew to throat | Ounces per square yard | Length | Diameter, inches | Length | Diameter, inches | |||||||
| Feet | Inches | Feet | Inches | Feet | Inches | Feet | Inches | Feet | Inches | Feet | Inches | |||||||
| 17 | 58 | 5 | 11 | 12 | 1 | 8 | 10 | 10 | 10 | 14.35 | 10 | 11 | 2 | 3 | 6 | 11 | 2 | |
| 17 | 19 | 74 | 6 | 8 | 13 | 8 | 10 | 0 | 12 | 2 | 14.35 | 10 | 12 | 6 | 3 | 7 | 8 | 2 |
| 19 | 21 | 93 | 7 | 5 | 15 | 1 | 11 | 2 | 13 | 8 | 14.35 | 10 | 13 | 10 | 31⁄2 | 8 | 5 | 21⁄2 |
| 21 | 23 | 113 | 8 | 3 | 16 | 11 | 12 | 4 | 15 | 1 | 14.35 | 10 | 15 | 2 | 31⁄2 | 9 | 3 | 21⁄2 |
| 23 | 25 | 135 | 9 | 0 | 18 | 6 | 13 | 6 | 16 | 6 | 14.35 | 10 | 16 | 6 | 4 | 10 | 0 | 3 |
| 25 | 27 | 158 | 9 | 9 | 20 | 0 | 14 | 7 | 17 | 10 | 17.50 | 8 | 17 | 10 | 4 | 10 | 9 | 3 |
| 27 | 29 | 181 | 10 | 5 | 21 | 5 | 15 | 7 | 19 | 1 | 17.50 | 8 | 19 | 2 | 41⁄2 | 11 | 5 | 31⁄4 |
| 29 | 31 | 203 | 11 | 0 | 22 | 8 | 16 | 6 | 20 | 3 | 20.74 | 6 | 20 | 6 | 41⁄2 | 12 | 0 | 31⁄4 |
| 31 2 | ||||||||||||||||||
| 1 Mast lengths measured from heel to center of upper halyard sheave. Mast diameters measured at thwart. Mast and yard shall be of clear-grained spruce, fir, or equivalent. | ||||||||||||||||||
| 2 Subject to special consideration. |
[USCG-2020-0107, 87 FR 68306, Nov. 14, 2022]