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Rondar Raceboats Limited VIPER 640 Owner's Manual

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VIPER
640
OWNER'S MANUAL
Rondar Raceboats Limited
5 STATION YARD, EDINGTON, WESTBURY, WILTSHRE, BA13 4NT.
Tel. +44(0)1380 831138
Fax. +44 (0) 1380 831444

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Summary of Contents for Rondar Raceboats Limited VIPER 640

  • Page 1 VIPER OWNER’S MANUAL Rondar Raceboats Limited 5 STATION YARD, EDINGTON, WESTBURY, WILTSHRE, BA13 4NT. Tel. +44(0)1380 831138 Fax. +44 (0) 1380 831444...
  • Page 2 WWW.RONDARBOATS.COM INTRODUCTION Congratulations on the purchase of your new Viper and thank you for choosing our boat. We are confident that you will have many hours of great sailing and racing in this truly excellent design. The Viper is an exciting boat to sail and offers fantastic performance.

  • Page 3: Rigging Instructions

    For further information, spares and accessories, please contact your local dealer, or Rondar Raceboats Limited direct. Your Viper has been supplied by: RIGGING INSTRUCTIONS 1. Rigging the mast from new involves fitting the two halves together and ensuring that the halyards are not twisted. This is very important to ensure smooth running of the halyards 2.
  • Page 4 3. Once fitted correctly the excess bolt length should be cut off, and the ends filed smooth to prevent the spinnaker ripping on any jagged cut metal. It’s always a good idea to wrap all of the potential snags the spinnaker may come in contact with using a little rigging or white electrical tape.
  • Page 5 6. Measure the forestay BS to BS (Bearing Surface to Bearing Surface) and lock off the adjuster at 24ft 6”. Undo the upper shrouds turnbuckles to maximum open. Stepping the mast Ensure that the halyards are positioned so the free ends can be reached once the mast has been stepped.
  • Page 6 10). Tie the halyard on to the head of the sail. Thread the jib sheet through the clew blocks on the sail. Attach the luff of the sail to the forestay using the clip on hanks. 11). Thread the lower end of the jib halyard through the double block on the fine tune system under the foredeck, and then up through the port side deck block, and cleat.
  • Page 7 The lower shrouds should allow the lower part of the mast to pre-bend. They should not carry much tension until the mainsail has been hoisted and the gnav attached. The lowers shrouds merely prevent excessive bend from the vang in the lower part of the mast.
  • Page 8 To ensure that the sail is not twisted, run your hands up the red luff tape on the spinnaker until you reach the head of the sail, then tie the spinnaker halyard on to the head of the sail. Tie the middle of the spinnaker sheets to the clew of the sail. Lead the ends through the blocks amidships on the gunwhales, and then forwards to the ratchet blocks near the shroud plates (ensure you thread it the correct way through the ratchets, which only work under load), and tie the ends together.
  • Page 9 Launching Individual launching areas vary and common sense will determine the best order of proceedings when launching the Viper. The boat launches from its trolley just like a dinghy, and can be launched from a crane hoist, slipway, shore or beach with ease. The boat will sail with just 0.5 metres (20”) of keel down, and although it is less stable in this mode, it will not capsize.
  • Page 10 wind range. Extreme tension should blade the upper leech out flat in very strong conditions. GNAV Kicker (Vang spelled backwards) The more wind there is, the more gnav you need. It powers up the leech helping pointing upwind and maintaining power on the reaches. In very gusty conditions, easing it will make the rig more forgiving.

  • Page 11: Care And Maintenance

    CARE AND MAINTENANCE Hull The Viper is made using a GRP foam sandwich laminate. This is stiff and light, but will dent if subjected to point loading. The boat should be supported ashore on a factory supplied Viper dolly or trailer. Keep your boat drained and well ventilated Obviously in dealing with a marine environment, equipment gets wet, which in itself is not a problem.
  • Page 12 Tying down Tying down your Viper to its trailer is important because too much or too little tension could result in damage. Only use an approved dolly or trailer. The boat is well located on its dolly, so you only need apply sufficient tension to hold the boat in contact with the supports.
  • Page 13 Sails The main and jib should be rolled and stored dry, out of direct sunlight. Dry the spinnaker, fold it and store in its bag. When using a new sail for the first time, try to avoid extreme conditions because high loads on a new sailcloth can diminish the racing life of the sail.
  • Page 14 The Class Association also produces regular Newsletters, organizes training events and hosts a highly popular forum at http://forumViper640.org The International Viper 640 Class Association will be centred around the Viper640.org website. Please use this site as a point of reference for all your enquiries.