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 |75x20 |72x18 |68x17 |65x16 1/2|63x15 3/4| Boom |61x13 1/4|59x13 |54x12 |51x11 1/2|49x10 3/4| Bowsprit |55x16 3/4|53x15 1/2|49x14 |47x13 1/4|44x12 1/2| Gaff |45x 8 3/4|40x 8 1/2|38x 7 3/4|33x 7 1/2|32x 7 1/4| Topmast |52x 9 3/4|48x 8 1/2|45x 7 3/4|42x 7 1/2|40x 7 1/4| Spread-Yard|58x 9 1/4|56x 8 1/2|48x 8 1/4|47x 7 3/4|46x 7 1/2| -----------+---------+---------+---------+---------+---------+

-----------+---------+---------+---------+---------+ Spar. | 70 Tons | 60 Tons | 50 Tons.| 40 Tons.| -----------+---------+---------+---------+---------+ |ft. ins. |ft. ins. |ft. ins. |ft. ins. | Mast |60x15 |56x14 |55x13 1/2|50x12 | Boom |47x10 1/2|45x10 |43x 8 3/4|42x 8 1/2| Bowsprit |43x12 |38x11 1/4|37x10 3/4|32x10 | Gaff |31x 7 |28x 6 3/4|30x 6 1/2|26x 6 | Topmast |39x 7 |35x 6 3/4|35x 6 1/2|30x 6 | Spread-Yard|44x 7 |42x 6 3/4|38x 6 1/4|32x 6 | -----------+---------+---------+---------+---------+