Reefing systems. S-Hooks for slab reef or Cunningham

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Reefing systems Traditional slab reef This is a simple and efficient reefing system. The reef cringle on the luff is hooked on to fixed hooks at the inboard end. The leech is reefed down with a line running to a winch at the mast. Stoppers at the inboard end allow the same winch to be used with any line on the boom. Lines not in use are kept clear of the winch by a lineguide. Alternatively, the line can lead aft to a cockpit winch. The boom can also be equipped for slab reefing with hooks on lines. This system is suitable for larger yachts where it can be difficult to hook the reef cringle to a fixed hook in heavy winds. S-Hooks for slab reef or unningham Diameter, Ultimate load, N 307-407 6 5000 307-408 8 6500 307-410 10 9500 Slab reefing with fixed hooks. Slab reefing with running S-hooks. Instant reefing with Single Line Reef Single Line Reef is a familiar concept, but made practical and reliable by Seldén. All you do is ease off the halyard to premarked reefing points and then haul in on the reefing line. The luff and the leech are reefed at the same time. A system of guided blocks inside the boom ensures that the lines do not tangle. The system has a 2:1 gear ratio, making reefing fast and simple, without having to leave the cockpit. Single Line Reef. Pulls down luff and leech at the same time. Operated from the safety of the cockpit. Seldén furling mast When used with a furling mast, the booms are fitted with low friction outhaul cars. The cars are equipped with horizontal and vertical wheels, enabling them to absorb forces from every direction. fitted with outhaul car for Seldén furling mast. For hydraulic outhauls, see page 103. 80

Single Line Reef Release the Rodkicker. Slacken the mainsheet. Ease off the main halyard to premarked reefing points. Tension the reef line up to the marked position on the line. The reef is in. Remove any slack in other reefs. If necessary, apply more main halyard tension. Adjust the mainsheet. Adjust the Rodkicker. It s as simple as that! 81

s choice To select the correct boom, you will need to know the sail foot length (E) and righting moment (RM). If the RM is not known, displacement is an alternative. The E and Y measurements must also be known for dimen sioning purposes. The length of the boom is sometimes determined by other factors than E and therefore we need the S measurement aswell. A good example is when the boom extrusion needs an overlength to allow the main sheet to pass a sprayhood. Ymax S Masthead rigs, and Y max (m) Section B087 B104 B120 B135 B152 B171 B200 B250 B290 B380 RM 30 Displ. knm tonnes Y max Y max Y max Y max Y max Y max Y max Y max Y max Y max 6 1.2 3.3 1.7 4.0 1.8 4.1 2.1 8 1.6 3.3 1.4 4.0 1.6 4.1 1.8 4.6 2.5 10 2.0 3.3 1.3 4.0 1.4 4.1 1.6 4.6 2.2 12 2.4 2.9 1.2 4.0 1.3 4.1 1.5 4.6 2.0 5.6 2.9 14 2.8 2.6 1.1 3.5 1.2 4.1 1.4 4.6 1.9 5.6 2.7 16 3.2 3.2 1.1 4.1 1.3 4.6 1.8 5.6 2.5 6.1 3.3 18 3.6 3.0 1.1 4.1 1.2 4.6 1.7 5.6 2.4 6.1 3.1 20 4.0 2.8 1.0 3.8 1.1 4.6 1.6 5.6 2.3 6.1 3.0 25 5.0 2.4 0.9 3.3 1.0 4.6 1.4 5.6 2.0 6.1 2.7 30 5.7 2.9 0.9 4.5 1.3 5.6 1.9 6.1 2.4 6.6 3.7 35 6.3 2.6 0.9 4.0 1.2 5.6 1.7 6.1 2.3 6.6 3.4 40 7.0 3.7 1.1 5.1 1.6 6.1 2.1 6.6 3.2 45 7.7 3.4 1.1 4.7 1.5 6.1 2.0 6.6 3.0 50 8.2 3.2 1.0 4.4 1.4 6.1 1.9 6.6 2.8 55 9.0 4.1 1.4 6.1 1.8 6.6 2.7 60 10 3.9 1.3 5.7 1.7 6.6 2.6 70 11 3.5 1.2 5.1 1.6 6.6 2.4 7.6 3.7 80 12 3.2 1.1 4.7 1.5 6.6 2.2 7.6 3.5 90 14 2.9 1.1 4.3 1.4 6.5 2.1 7.6 3.3 100 15 2.7 1.0 4.0 1.3 6.0 2.0 7.6 3.1 110 16 3.7 1.3 5.7 1.9 7.6 3.0 120 18 3.5 1.2 5.3 1.8 7.6 2.8 130 19 3.3 1.2 5.0 1.8 7.6 2.7 8.5 4.3 140 20 3.2 1.1 4.8 1.7 7.6 2.6 8.5 4.1 150 22 4.6 1.6 7.5 2.5 8.5 4.0 160 23 4.4 1.6 7.2 2.5 8.5 3.8 170 25 4.2 1.5 6.9 2.4 8.5 3.7 12 6.1 180 26 4.0 1.5 6.6 2.3 8.5 3.6 12 5.9 190 27 3.9 1.5 6.4 2.3 8.5 3.5 12 5.8 200 28 3.7 1.4 6.1 2.2 8.5 3.4 12 5.6 220 31 5.7 2.1 8.5 3.3 12 5.4 240 34 5.4 2.0 8.5 3.1 12 5.1 260 8.5 3.0 12 4.9 280 8.2 2.9 12 4.7 300 7.9 2.8 12 4.6 320 12 4.4 340 12 4.3 360 12 4.2 380 11.6 4.1 400 11.2 4.0 82

Fractional rigs, and Y max (m) Section B087 B104 B120 B135 B152 B171 B200 B250 B290 B380 RM 30 Displ. knm tonnes Y max Y max Y max Y max Y max Y max Y max Y max Y max Y max 6 1.2 3.4 1.4 4.1 1.6 4.1 1.8 8 1.6 3.3 1.2 4.1 1.4 4.1 1.6 4.6 2.1 10 2.0 2.8 1.1 3.7 1.2 4.1 1.4 4.6 1.9 12 2.4 2.5 1.0 3.3 1.1 4.1 1.3 4.6 1.8 14 2.8 2.2 0.9 3.0 1.0 4.1 1.2 4.6 1.6 5.6 2.3 16 3.2 2.0 0.9 2.7 1.0 3.7 1.1 4.6 1.5 5.6 2.1 18 3.6 2.5 0.9 3.4 1.0 4.6 1.4 5.6 2.1 6.1 2.7 20 4.0 3.2 1.0 4.6 1.4 5.6 2.0 6.1 2.6 25 5.0 2.7 0.9 4.3 1.2 5.6 1.7 6.1 2.3 6.6 3.4 30 5.7 3.8 1.1 5.2 1.6 6.1 2.1 6.6 3.1 35 6.3 3.4 1.0 4.7 1.5 6.1 1.9 6.6 2.9 40 7.0 3.1 1.0 4.3 1.4 6.1 1.8 6.6 2.7 45 7.7 3.9 1.3 5.8 1.7 6.6 2.6 50 8.2 3.7 1.2 5.4 1.6 6.6 2.4 55 9.0 3.4 1.2 5.1 1.5 6.6 2.3 7.6 3.6 60 10 3.2 1.1 4.8 1.5 6.6 2.2 7.6 3.5 70 11 2.9 1.0 4.3 1.4 6.5 2.1 7.6 3.2 80 12 3.9 1.3 5.9 1.9 7.6 3.0 90 14 3.6 1.2 5.4 1.8 7.6 2.8 100 15 3.3 1.1 5.0 1.7 7.6 2.7 110 16 3.1 1.1 4.7 1.6 7.6 2.6 120 18 4.4 1.6 7.3 2.4 130 19 4.2 1.5 6.9 2.3 8.5 3.7 140 20 4.0 1.5 6.6 2.3 8.5 3.5 150 22 3.8 1.4 6.2 2.2 8.5 3.4 160 23 3.6 1.4 6.0 2.1 8.5 3.3 170 25 3.5 1.3 5.7 2.1 8.5 3.2 12.0 5.2 180 26 3.3 1.3 5.5 2.0 8.5 3.1 12.0 5.1 190 27 3.2 1.3 5.3 1.9 8.5 3.0 12.0 5.0 200 28 5.1 1.9 8.5 3.0 12.0 4.8 220 31 4.8 1.8 8.1 2.8 12.0 4.6 240 34 4.5 1.7 7.6 2.7 12.0 4.4 260 7.2 2.6 12.0 4.2 280 6.8 2.5 11.9 4.1 300 6.5 2.4 11.4 3.9 320 10.9 3.8 340 10.4 3.7 360 10.0 3.6 380 9.6 3.5 400 9.3 3.4 83

s for slab reef, Single Line Reef and furling masts After you have determined the correct boom for your yacht (previous tables), all you have to do is decide what kind of reefing system you prefer. Then check the tables below to find the complete boom in question. If you are in any doubt about which boom to choose, please contact your Seldén dealer for expert advice. When fitting a Seldén boom to a mast of another brand, check the existing toggle s dimensions for compatibility. Ø B * connects directly to gooseneck bracket. (B190 and B230) Inboard end A B Ø B B087-B300 B087 8 8 16 B104 8 8 16 B120 14 10 20 B135 14 12 20 B152 14 12 20 B171 16 12 20 B200 20 16 30 B250 18 16 30 B300 30 16 30 B190* - 12.2 78 B230* - 12.2 78 A s for furling masts BS 120-72 B120 3605 BS 120-73 4105 BS 135-72 B135 4055 BS 135-73 4555 BS 152/72 B152 4305 BS 152/73 4555 BS 152/74 5055 BS 152/75 5555 BS 171-71B B171 4575 BS 171-72B 5075 BS 171-73B 5575 BS 171-74B 6175 BS 200-71B B200 5605 BS 200-72B 6705 BS 250-71B B250 5610 BS 250-72B 6110 BS 250-73B 7110 BS 250-74B 7610 BS 290-71 B290 6885 BS 290-73 8385 Slab reef and Single Line Reef booms Remarks BS 087-01 B087 3365 Outhaul (2:1) + 2 reefs, aft BS 087-21 3365 Outhaul (4:1) + 2 reefs, jam levers BS 087-61 3365 Outhaul (2:1) + 2 Single Line Reef, aft BS 104-01 B104 3515 Outhaul (2:1) + 2 reefs, aft BS 104-02 4015 Outhaul (2:1) + 2 reefs, aft BS 104-21 3515 Outhaul (4:1) + 2 reefs, jam levers BS 104-22 4015 Outhaul (4:1) + 2 reefs, jam levers BS 104-61 3515 Outhaul (2:1) + 2 Single Line Reef, aft BS 104-62 4015 Outhaul (2:1) + 2 Single Line Reef, aft BS 120-02B B120 3540 Outhaul (3:1) + 2 reefs, aft BS 120-03B 4040 Outhaul (3:1) + 2 reefs, aft BS 120-22 3635 Outhaul (3:1) + 2 reefs, jam levers BS 120-23 4135 Outhaul (3:1) + 2 reefs, jam levers BS 120-62 3635 Outhaul (3:1) + 2 Single Line Reef, aft BS 120-63 4135 Outhaul (3:1) + 2 Single Line Reef, aft BS 135-02 B135 4105 Outhaul (3:1) + 2 reefs, aft BS 135-03 4605 Outhaul (3:1) + 2 reefs, aft BS 135-22 4105 Outhaul (3:1) + 2 reefs, jam levers BS 135-23 4605 Outhaul (3:1) + 2 reefs, jam levers BS 135-62 4105 Outhaul (3:1) + 2 Single Line Reef, aft BS 135-63 4605 Outhaul (3:1) + 2 Single Line Reef, aft BS 152-02 B152 4355 Outhaul (3:1) + 3 reefs, aft BS 152-03 4605 Outhaul (3:1) + 3 reefs, aft BS 152-04 5105 Outhaul (3:1) + 3 reefs, aft BS 152-05 5605 Outhaul (3:1) + 3 reefs, aft BS 152-22 4355 Outhaul (3:1) + 2 reefs, jam levers BS 152-23 4605 Outhaul (3:1) + 2 reefs, jam levers BS 152-24 5105 Outhaul (3:1) + 2 reefs, jam levers BS 152-25 5605 Outhaul (3:1) + 2 reefs, jam levers BS 152-62 4305 Outhaul (3:1) + 2 Single Line Reef, aft BS 152-63 4605 Outhaul (3:1) + 2 Single Line Reef, aft BS 152-64 5105 Outhaul (3:1) + 2 Single Line Reef, aft BS 152-65 5605 Outhaul (3:1) + 2 Single Line Reef, aft BS 171-01B B171 4625 Outhaul (3:1) + 3 reefs, aft BS 171-02B 5125 Outhaul (3:1) + 3 reefs, aft BS 171-03B 5625 Outhaul (3:1) + 3 reefs, aft BS 171-04B 6225 Outhaul (3:1) + 3 reefs, aft BS 171-21B 4625 Outhaul (3:1) + 3 reefs, jam levers BS 171-22B 5125 Outhaul (3:1) + 3 reefs, jam levers BS 171-23B 5625 Outhaul (3:1) + 3 reefs, jam levers BS 171-24B 6225 Outhaul (3:1) + 3 reefs, jam levers Remarks BS 171-61B B171 4625 Outhaul (3:1) + 2 Single Line Reef, aft BS 171-62B 5125 Outhaul (3:1) + 2 Single Line Reef, aft BS 171-63B 5625 Outhaul (3:1) + 2 Single Line Reef, aft BS 171-64B 6225 Outhaul (3:1) + 2 Single Line Reef, aft BS 190-02 B190 4940 Outhaul (3:1) + 2 reefs, aft BS 190-03 5440 Outhaul (3:1) + 2 reefs, aft BS 190-62 4940 Outhaul (3:1) + 2 Single Line Reef, aft BS 190-63 5440 Outhaul (3:1) + 2 Single Line Reef, aft BS 200-01B B200 5665 Outhaul (4:1) + 3 reefs, aft BS 200-02B 6765 Outhaul (4:1) + 3 reefs, aft BS 200-21B 5665 Outhaul (4:1) + 3 reefs, jam levers BS 200-22B 6765 Outhaul (4:1) + 3 reefs, jam levers BS 200-61B 5665 Outhaul (4:1) + 2 Single Line Reef, aft BS 200-62B 6765 Outhaul (4:1) + 2 Single Line Reef, aft BS 230-01 B230 4540 Outhaul + 2 reefs, aft BS 230-02 4940 Outhaul + 2 reefs, aft BS 230-03 5440 Outhaul + 2 reefs, aft BS 230-04 5940 Outhaul + 2 reefs, aft BS 230-61 4540 Outhaul + 2 Single Line Reef, aft BS 230-62 4950 Outhaul + 2 Single Line Reef, aft BS 230-63 5440 Outhaul + 2 Single Line Reef, aft BS 230-64 5940 Outhaul + 2 Single Line Reef, aft BS 250-01B B250 5670 Outhaul (4:1) + 3 reefs, aft BS 250-02B 6170 Outhaul (4:1) + 3 reefs, aft BS 250-03B 7170 Outhaul (4:1) + 3 reefs, aft BS 250-04B 7670 Outhaul (4:1) + 3 reefs, aft BS 250-21B 5670 Outhaul (4:1) + 3 reefs, jam levers BS 250-22B 6170 Outhaul (4:1) + 3 reefs, jam levers BS 250-23B 7170 Outhaul (4:1) + 3 reefs, jam levers BS 250-24B 7670 Outhaul (4:1) + 3 reefs, jam levers BS 250-61B 5670 Outhaul (4:1) + 2 Single Line Reef, aft BS 250-62B 6170 Outhaul (4:1) + 2 Single Line Reef, aft BS 250-63B 7170 Outhaul (4:1) + 2 Single Line Reef, aft BS 250-64B 7670 Outhaul (4:1) + 2 Single Line Reef, aft BS 290-01 B290 6885 Outhaul + 2 reefs, aft BS 290-03 8385 Outhaul + 2 reefs, aft BS 290-61 6885 Outhaul (3:1) + 2 Single Line Reef, aft BS 290-63 8385 Outhaul (3:1) + 2 Single Line Reef, aft 84 Aft = Lines to cockpit. Jam levers = Lines operated at gooseneck.

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