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Laser SB3 Rigging Manual

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Summary of Contents for Laser SB3

  • Page 1 5,**,1* 0$18$/ 5,**,1* 0$18$/ 5,**,1* 0$18$/ 5,**,1* 0$18$/...

  • Page 2: Table Of Contents

    This instruction manual is not a guide to sailing your craft and it should not be considered suitable for the task of learning to sail a boat. LASER CENTRE Options, accessories and spares are available from Laser Direct +44 (0)1327 841610 www.lasersailing.com...
  • Page 3 6DIHW\ $IORDW :DUQLQJ 7KH 6% FDUULHV QR LQWHUQDO UHVHUYH EXR\DQF\ $V LV FRPPRQ RQ ERDWV RI WKLV GHVLJQ 6KRXOG \RX JHW D KROH LQ WKH KXOO LW LV SRVVLEOH IRU WKH ERDW WR VLQN $ UHVHUYH EXR\DQF\ EDJ NLW LV DYDLODEOH DQG UHFRPPHQGHG $OZD\V FKHFN VNLQ ILWWLQJV RI WKH 7DFNWLFN HYHU\WLPH \RX ODXQFK &KHFN IRU RYHUKHDG FDEOHV EHIRUH UDLVLQJ WKH PDVW 7KLV LQVWUXFWLRQ PDQXDO LV QRW D JXLGH WR VDLOLQJ \RXU FUDIW DQG LW VKRXOG...
  • Page 4 GLOSSARY Aft: Back of the boat Backstay: Support at the back of the boat to the top of the mast used to control the mast bend, and support the mast. Bow: Front of the boat Burgee: Wind indicator usually a flag Batten: A thin stiffening strip in the sail to support the leech Boom: A spar at the foot of the sail Cleat: A fitting used for holding / securing ropes...
  • Page 5 USEFUL BOAT TERMINOLOGY Head Gennaker Backstay Cap shroud V2 / D4 Main shroud V1 / D3 Clew D2 shroud Tack D1 / Lower Gennaker Pole Cunningham control Gnav control Gennaker Halyard Jib Halyard Pole out control Gennaker tack line...
  • Page 6 It is recommended that the trailer be serviced annually. • Gel coat damage should be repaired as soon as possible. Gel coat specifications and repair kits available from Laser Direct. • UV light will cause fading to some components and fittings, a cover is recommended to reduce the UV degradation.
  • Page 7 :DUQLQJ ± .HHSLQJ \RXU /DVHU SURGXFW RQ D PRRULQJ ,W LV ZHOO SXEOLFLVHG WKDW *ODVV UHLQIRUFHG 3ODVWLF *53 ERDW KXOOV DUH VXVFHSWLEOH WR 2VPRVLV DQG :LFNLQJ LI VWRUHG RQ D PRRULQJ IRU SURORQJHG SHULRGV ZLWKRXW D SURWHFWLYH EDUULHU LQ DGGLWLRQ WR WKH JHO FRDW 6LPLODU FRQGLWLRQV FDQ EH FUHDWHG ZKHQ D KXOO LV SODFHG LQ D WUDQVSRUW FRYHU ZKHQ LW LV ZHW DQG WKH FRYHU LV QRW UHPRYHG DW WKH HQG RI WKH MRXUQH\ 7KLV LV D SDUWLFXODU ULVN LQ KRW DQG KXPLG...
  • Page 8 5. Turn over the sail 6. Position the GBR starting with the R 180mm from the leech 7. The GBR is 60mm above the draft line. 8. The letters are 60mm apart. 9. Position the sail nos 60mm underneath and parallel to the numbers on the opposite side.

  • Page 9: Shroud Layout

    SHROUD LAYOUT V2 / D4 (Cap shroud VI / D3 main shroud Lowers D shrouds are diagonals, V shrouds are verticals V1 / D3 is a continous length, V2 / D4 is a continous length.

  • Page 10: Assembly Of The Mast

    ASSEMBLY OF THE MAST 1. The mast will be supplied flat packed and will require some tools to assemble: Phillips screw driver Small adjustable spanner x 2 ( or mole grips ) Care required if using mole grips as these can mark the fittings) Electrician / small screwdriver Tape measure 5 meters Rig tension gauge (recommended)
  • Page 11 6. The spreader is fixed with no adjustment. They are marked port and starboard and simply attached with two clevis pins and rings. Ensure that these are taped up. 6. Measure the V2 / D4 ( Cap shrouds ) and adjust the bottle screw to give a distance of 4440mm from the bearing surface of the pin to the bearing surface of the T terminal on this shroud.
  • Page 12 8. Tape up the main shroud as shown. This holds the feral in position whilst fully taping the end of the spreader assembly. 9. Tape bottle screw. 10. V1 / D3 shrouds - Adjust the bottle screws so that they are the same length and showing approx 20mm of thread.

  • Page 13: Raising The Mast

    RAISING THE MAST 1. The rig in transit position. The mast support is positioned at the granny rails. This will be moved to the back of the boat when raising the mast. 2. The trailer should be chocked or lower the rear supports before assembly of the mast.
  • Page 14 6. Attach the shrouds and D2 shrouds. The lowers should remain off at this stage. 7. Ensure that all the shrouds are in their terminals. 8. Tie a bowline in the jib halyard. 9. Pull out the winch hook until the hook is reaching the middle of the granny rails.
  • Page 15 16. One person is to operate the winch whilst a second person lifts the mast from the cradle and walks up the boat whilst the winch is reeled in. 17. A third person can assist in the operation by using the gennaker halyard to assist the mast erection.

  • Page 16: Setting Up The Mast

    SETTING UP THE MAST The objective is to set the mast up to have the correct amount of mast bend and tension in the shrouds. The forestay is a fixed length and is controlled by the class rules, so mast rake is pre set. You are looking for an even bend for and aft and straight side-to- side.
  • Page 17 The mast bend should be approx 4” at the main spreaders. By pulling the main halyard tight and holding the halyard to the aft face of the mast above the gooseneck will give you a good guide. The halyard will be 4 ½ – 5” at spreader height –...
  • Page 18 VANG SET UP 1. Attach boom to mast. 2. Attach the Gnav bar to the mast. 3. Attach Gnav to the boom. 4. The Gnav tackle ( supplied with Gnav bar ) should be attached by taking the only free end of the black / green fleck rope and feeding this thru the sheave on the top of the boom.
  • Page 19 7. Attach the large pulley and shackle to the Gnav car on the boom. 8. Attach the last pulley and shackle to the uppermost D ring and webbing on the mast Vang assembled...
  • Page 20 GENNAKER BAG 1. Ensure that the hatch is in the closed position before sailing 2. Hatch shows the handle in the closed position 3. Insert the tube on the gennaker bag onto the bobble first 4. Insert the starboard end and secure the elastic to the clip 5.
  • Page 21 JIB SHEET AND CUNNINGHAM SET UP 1. The jib sheets are a continuous system. 2. Shackle the two blocks to the jib clew. 3. Dead end one end of the jib sheet through the spring and shackle at the base of the jib car pulley.
  • Page 22 JIB CUNNINGHAM 1. The jib Cunningham is controlled from the cleat at the side of the mast on the port side. This is a useful control if used in conjunction with the jib halyard to raise and lower the jib on the forestay and fine tune the sheeting angle 2.
  • Page 23 GENNAKER RIGGING 1. The gennaker should be packed into the gennaker bag leaving the Head, Clew and tack patched corners showing out of the corner off the bag. This can be done with the bag in or out of the boat. When packing the gennaker take the head of the sail and work down the leech of the sail to avoid twists in the sail when packing.
  • Page 24 MAINSAIL & MAINSHEET SET UP 1. The mainsheet is dead-ended at the rear block on the boom by tying a bowline thru the block. 2. The sheet is then led thru the aft block on the traveller and back up to the boom block. 3.
  • Page 25 7. Hoist the sail with the bow sitting head to wind. The sails should be stowed for launching and recovery of the boat. Care should be taken when hoisting the sail and should always be fed into the sail feeder to avoid jamming and tearing the sail.
  • Page 26 The Cunningham on the mainsail is situated on the starboard side of the mast. Feed the Cunningham tail thru the Cunningham eye in the sail. Tie a knot in the tail leaving a short tail after the knot This then is placed into the sail track below the gooseneck.
  • Page 27 LAUNCHING SINGLE POINT LIFT When launching the boat using the two lifting points either side of the keel box and two lifting straps it is important to: • Use the keel hold down strap as a security strap. This is threaded through the shackle and a loop formed around both lifting straps.
  • Page 28 KEEL LOWERING AND HOISTING • WARNING ; Do not allow the winch to free spin, serious damage could occur to the hull and keel if this happens. • If the winch does start to free spin do not attempt to stop it as serious injury could result.

  • Page 29: Recovery Of The Boat And Towing

    RECOVERY OF THE BOAT AND TOWING • With sails lowered the keel should be raised and the rudder removed in plenty of time especially in shallow or unknown waters • With the trailer submerged – float on to the trailer using the docking arms if fitted. •...
  • Page 30 Tips for preparing the Laser SB3 prior to trailing: Please note: This is a guide to assist you in preparing your boat for trailing; it is not a guide to the legal restrictions and laws covering the towing your boat. It is the responsibility of the persons towing to ensure that they comply with the legal requirements for the countries which the trailer will be utilised.