King’s Cutters and Smugglers 1700-1855

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.	70 Tons.	60 Tons.	50 Tons.	40 Tons.
	ft. ins.	ft. ins.	ft. ins.	ft. ins.	ft. ins.	ft. ins.	ft. ins.	ft. ins.	ft. ins.
Mast	75 × 20	72 × 18	68 × 17	65 × 16½	63 × 15¾	60 × 15	56 × 14	55 × 13½	50 × 12
Boom	61 × 13¼	59 × 13	54 × 12	51 × 11½	49 × 10¾	47 × 10½	45 × 10	43 × 8¾	42 × 8½
Bowsprit	55 × 16¾	53 × 15½	49 × 14	47 × 13¼	44 × 12½	43 × 12	38 × 11¼	37 × 10¾	32 × 10
Gaff	45 × 8¾	40 × 8½	38 × 7¾	33 × 7½	32 × 7¼	31 × 7	28 × 6¾	30 × 6½	26 × 6
Topmast	52 × 9¾	48 × 8½	45 × 7¾	42 × 7½	40 × 7¼	39 × 7	35 × 6¾	35 × 6½	30 × 6
Spread-Yard	58 × 9¼	56 × 8½	48 × 8¼	47 × 7¾	46 × 7½	44 × 7	42 × 6¾	38 × 6¼	32 × 6