TABLES
Showing Weights, etc., of Various Cordage.
KINDS. LENGTH. WEIGHT.
Reefing twine, 24 skeins 8 to 9 lbs.
Sewing twine, 24 " 8 to 9 lbs.
Marline, 12 " 4 lbs.
Log lines, 25 fathoms 1 to 3 lbs.
Samson lines, 30 " 3/4 lb.
Samson lines, 30 " 1 lb.
Samson lines, 30 " 1 1/4 lbs.
Samson lines, 30 " 1 1/2 lbs.
Fishing lines, 25 " 1/4 lb.
Fishing lines, 25 " 1/2 lb.
Fishing lines, 25 " 3/4 lb.
Fishing lines, 25 " 1 lb.
Hambro'-lines (6 threads), 23 " 1 1/2 lbs.
Hambro'-lines (9 threads), 23 " 2 1/4 lbs.
Hambro'-lines (12 threads), 23 " 3 lbs.
Hand lead lines, 20 " 4 lbs.
Deep sea lines, 120 " 28 lbs.
Deep sea lines, 120 " 32 lbs.
Deep sea lines, 120 " 34 lbs.
Deep sea lines, 120 " 36 lbs.
STRENGTH OF ROPES.
Working Breaking Ordinary
Hemp. Iron. Steel. Load. Strain. Chain.
Cwts. Tons.
2 3/4 1 6 2 5/16
1 1/2 1 9 3
3 3/4 1 5/8 12 4
1 3/4 1 1/2 15 5
4 1/2 1 7/8 18 6
2 1 5/8 21 7
5 1/2 2 1/8 1 3/4 24 8 9/16
2 1/4 27 9
6 2 3/8 1 7/8 30 10
6 1/2 2 5/8 2 36 12
2 3/4 2 1/8 37 13
7 2 7/8 2 1/4 42 14 11/16
7 1/2 3 1/8 2 3/8 48 16
8 3 3/8 2 1/2 54 18
3 1/2 2 5/8 60 20
8 1/2 3 5/8 2 3/4 66 22
9 1/2 3 7/8 3 1/4 78 26 15/16
10 4 84 28 1
4 1/4 3 3/8 90 30
11 4 3/8 96 32
4 1/2 3 1/2 108 36
12 4 5/8 3 3/4 120 40
[Transcriber's note: in the source book, the following two tables were a single table. It has been split into two due to space limitations.]
TABLE OF WEIGHTS AND BREAKING STRAINS.
Circum-
ference White Tarred
of Rope. Manila Rope. Hemp Rope. Coir Rope.
Weight Weight Weight
for 120 Breaking for 120 Breaking for 120 Breaking
Fathoms. Strain. Fathoms. Strain. Fathoms. Strain.
Ins. Ct. Qr. Lb. Tns. Cwts. Ct. Qr. Lb. Tns. Cwts. Ct. Qr. Lb. Tns. Cwts.
1 -- -- -- -- -- --
1 1/4 -- -- -- -- -- --
1 1/2 -- -- -- -- -- --
1 3/4 -- -- -- -- -- --
2 0 3 4 1 6 1 0 0 0 19 0 2 4 0 6
2 1/4 0 3 26 1 13 1 0 27 1 2 0 2 19 0 8
2 1/2 1 0 20 2 0 1 2 4 1 7 0 3 9 0 10
2 3/4 1 1 25 2 9 1 3 11 1 13 1 0 0 0 12
3 1 3 2 2 18 2 0 22 2 2 1 0 22 0 14
3 1/4 2 0 7 3 8 2 2 10 2 7 1 1 17 0 16
3 1/2 2 1 12 3 19 3 0 2 2 17 1 2 15 0 19
3 3/4 2 2 21 4 11 3 1 21 3 7 1 3 14 1 2
4 3 0 6 5 3 4 0 0 3 17 2 0 16 1 5
4 1/4 3 2 0 5 17 4 2 0 4 4 2 1 18 1 8
4 1/2 3 3 20 6 11 4 3 24 4 10 2 2 20 1 12
5 4 2 24 8 2 6 0 15 5 10 3 1 8 2 0
5 1/2 5 3 16 9 16 7 1 15 6 10 4 0 0 2 8
6 7 0 8 11 13 8 3 4 8 9 4 3 4 2 18
6 1/2 8 1 0 13 14 10 1 12 9 9 5 2 12 3 6
7 9 1 20 15 18 12 0 8 11 9 6 2 4 3 18
8 12 0 24 20 14 16 0 0 15 9 8 2 8 5 0
Galvanised Galvanised
Circum- Galvanised Patent Steel Patent Steel
ference Rigging Flexible Extra Flexible
of Rope. Wire Rope. Wire Rope. Wire Rope.
Weight Weight Weight
per Breaking per Breaking per Breaking
Fathom. Strain Fathom. Strain Fathom. Strain
Lbs. Tons. Lbs. Tons. Lbs. Tons.
1 1.2 1 3/4 .76 1 3/4 .88 2 1/2
1 1/4 1.6 3 1.12 2 7/8 1.36 4
1 1/2 2.2 4 1.44 4 2.00 7
1 3/4 3.0 5 1/2 2.00 5 1/2 2.72 9
2 3.8 7 2.40 7 3.48 11
2 1/4 4.6 9 3.12 9 1/2 4.44 13 1/2
2 1/2 5.8 11 4.00 12 1/2 5.44 17 1/2
2 3/4 6.8 13 4.64 15 1/2 6.72 22 1/2
3 8.0 16 5.48 18 8.00 25 1/2
3 1/4 9.2 19 6.80 22 9.48 30
3 1/2 11.2 22 7.80 26 11.00 36
3 3/4 12.4 26 9.00 29 12.44 40
4 14.4 30 10.00 33 14.24 44
4 1/4 17.0 34 11.20 35 16.00 49
4 1/2 18.4 38 12.80 39 18.00 50
5 -- -- -- -- -- --
5 1/2 -- -- -- -- -- --
6 -- -- -- -- -- --
6 1/2 -- -- -- -- -- --
7 -- -- -- -- -- --
8 -- -- -- -- -- --
Strength of Short Round-Linked Chain.
INCHES. MEAN BREAKING STRAIN. TEST.
Tons.
1 1/4 44 18.8
1 29 12.0
7/8 23 9.1
3/4 17 6.8
5/8 12 4.6
1/2 7 1/2 3.0