Chapter XXVII: Appendix: VI

DIMENSIONS OF SPARS OF REVENUE CUTTERS

The following list shows the length and thickness of mast, boom, bowsprit, gaff, topmast, and spread-yard [_i.e._ the yard on which the square-sail was set] as used in the Revenue Cutters of different sizes from 150 to 40 tons. The dimensions given below were those in vogue in the year 1838.

--------------+----------+----------+----------+----------+----------+ Spar. | 150 Tons.| 130 Tons.| 100 Tons.| 90 Tons.| 80 Tons.| --------------+----------+----------+----------+----------+----------+ | ft. ins. | ft. ins. | ft. ins. | ft. ins. | ft. ins. | Mast | 75 × 20 | 72 × 18 | 68 × 17 | 65 × 16½ | 63 × 15¾ | Boom | 61 × 13¼ | 59 × 13 | 54 × 12 | 51 × 11½ | 49 × 10¾ | Bowsprit | 55 × 16¾ | 53 × 15½ | 49 × 14 | 47 × 13¼ | 44 × 12½ | Gaff | 45 × 8¾ | 40 × 8½ | 38 × 7¾ | 33 × 7½ | 32 × 7¼ | Topmast | 52 × 9¾ | 48 × 8½ | 45 × 7¾ | 42 × 7½ | 40 × 7¼ | Spread-Yard | 58 × 9¼ | 56 × 8½ | 48 × 8¼ | 47 × 7¾ | 46 × 7½ | --------------+----------+----------+----------+----------+----------+

--------------+----------+----------+----------+----------+ Spar. | 70 Tons. | 60 Tons. | 50 Tons. | 40 Tons.| --------------+----------+----------+----------+----------+ | ft. ins. | ft. ins. | ft. ins. | ft. ins. | Mast | 60 × 15 | 56 × 14 | 55 × 13½ | 50 × 12 | Boom | 47 × 10½ | 45 × 10 | 43 × 8¾ | 42 × 8½ | Bowsprit | 43 × 12 | 38 × 11¼ | 37 × 10¾ | 32 × 10 | Gaff | 31 × 7 | 28 × 6¾ | 30 × 6½ | 26 × 6 | Topmast | 39 × 7 | 35 × 6¾ | 35 × 6½ | 30 × 6 | Spread-Yard | 44 × 7 | 42 × 6¾ | 38 × 6¼ | 32 × 6 | --------------+----------+----------+----------+----------+