These weights should be (excepting kedge) increased 25 per cent. when anchors are for use on a broad shoal model, and can be decreased if model is very sharp and the hull light. There is no advantage to be had by decreasing the weight of the spare in any case. Anchors are seldom forged to weigh exactly the above weights, but the matter of a few pounds either way will not effect the service.
SIZE AND STRENGTH OF CHAIN
| Size | Average Weight Per Fathom | Proof Test | Average Breaking Strain | Suitable for Yacht | Size of Anchor |
|---|---|---|---|---|---|
| Inch | In Pounds | Tons | Tons | Tons | Pounds |
| 3/16 | 3 | ½ | ⅞ | 1½ | 20 |
| ¼ | 4½ | ¾ | 1¼ | 2 | 30 |
| 5/16 | 6½ | 1½ | 2½ | 4 | 50 |
| ⅜ | 9 | 2 | 4 | 8 | 75 |
| 7/16 | 12 | 3 | 5½ | 18 | 100 |
| ½ | 15 | 4 | 6½ | 30 | 150 |
From Catalogue of A. S. Morss, Boston, Mass.
SIZE AND STRENGTH OF HAWSERS
| Size in Circumference | Size in Diameter | Weight of 100 Fathoms Manila in lbs. | Breaking Strength in lbs. | Number of feet in 1 lb. | |||
|---|---|---|---|---|---|---|---|
| 6 | thd. | 3/16 | in. | 12 | 540 | 50 feet, | |
| 9 | " | ¼ | " | 18 | 780 | 33 " | 4 in. |
| 12 | " | 6/16 | " | 24 | 1,000 | 25 " | |
| 15 | " | ⅜ | " | 30 | 1,280 | 20 " | |
| 1¼ | in. | 7/16 | " | 37 | 1,562 | 17 " | 8 " |
| 1½ | " | ½ | " | 46 | 2,250 | 13 " | |
| 1¾ | " | 9/16 | " | 65 | 3,062 | 9 " | 3 " |
| 2 | " | ⅝ | " | 80 | 4,000 | 7 " | 6 " |
| 2¼ | " | ¾ | " | 98 | 5,000 | 6 " | |
| 2½ | " | 12/16 | " | 120 | 6,250 | 5 " | |
| 2¾ | " | ⅞ | " | 142 | 7,500 | 4 " | 3 " |
| 3 | " | 1 | " | 170 | 9,000 | 3 " | 6 " |
From Catalogue of A. S. Morss, Boston, Mass.