Sails and Rigging

New sails, sail repair, running rigging, standing rigging… Anything related to sails and rigging will be found in the Sails and Rigging sub-menus.

Some of the measurements sent to the sailmaker for a new roller-furling  jib

Some of the measurements sent to the sailmaker for a new roller-furling jib

  • The forestay and top-shrouds were beefed up from 5/16″ to 3/8″ diameter 1×19 wire during the 2013 standing rigging job. The mids and back-stay are still 5/16″.
After the 2013 rigging replacement

After the 2013 rigging replacement

  • Using the Loos Tension Gauge ($189 on Amazon, 10/2013) after sailing for 6 months and letting the brand new 1×19 wire stretch as it broke in and re-tuning (See “Tuning the Rig”), I measured the following final values:
    1. Forestay: ?
    2. Backstay: ?
    3. SB Top: 42 (2230 lbs)
    4. Port Top: 42 (2230 lbs)
    5. SB Aft Mid: 24 (1300 lbs)
    6. P Aft Mid: 23 (1300 lbs)
    7. SB Fore Mid: 30 (2000 lbs)
    8. P Fore Mid: 29 (1850 lbs)
Loos Recommended Initial Settings
302/304 1×19 Stainless Steel Rigging Cable
Diam In. Breaking Strength Pounds Forestay Pounds Shrouds Pounds
3/32 1200 180 120
1/8 2100 320 240
5/32 3300 500 350
3/16 4700 750 500
7/32 6300 1000 700
1/4 8200 1300 850
9/32 10300 1600 1050
5/16 12500 2000 1300
3/8 17500 2750 1850
Loos Tension Table
SCALE 3/32 1/8 5/32 3/16 7/32 1/4 1/4 9/32 5/16 3/8
5 70 550
6 80 600
7 90 700
8 100 770 500
9 110 830 550
10 125 180 900 600 320
11 135 240 1000 650 380
12 150 100 270 1100 720 440
13 160 110 300 1200 780 500
14 170 125 330 1300 830 550
15 185 135 370 1400 900 600 200
16 200 150 420 1500 1000 680 230
17 220 165 450 1650 1080 740 270
18 240 180 500 1800 1150 800 290
19 260 200 540 2000 1220 870 330
20 280 220 140 590 320 1300 950 360
21 300 240 155 640 360 1420 1050 380
22 260 170 700 410 1540 1130 420
23 280 185 770 450 300 1660 1210 480
24 300 200 840 500 350 1800 1300 530
25 320 220 920 560 400 1960 1400 570
26 345 245 1030 630 450 2130 1500 600
27 370 265 1110 680 500 2300 1600 650
28 390 300 1240 740 550 2500 1700 720
29 420 320 820 600 1850 800
30 450 335 890 660 2000 870
31 475 360 970 720 2200 930
32 500 390 1060 780 2400 1000
33 420 1180 840 2700 1100
34 450 1300 900 3000 1200
35 480 1480 1000 1300
36 520 1680 1100 1400
37 560 1200 1500
38 610 1300 1650
39 700 1600 1770
40 800 2000 1900
41 2100
42 2230
43 2400
44 2620
45 2850
46 3100
47 3400
48 3700
49 4100
50 4500

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