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H. Rigging

  1. Framing stays are prohibited. Any cable not shown in the plans is prohibited.
  2. All stays shall be steel cable and shall be 0.118'' (3 mm) or greater in diameter.
  3. Halyard shall be steel cable and shall be 3/32'' (2.4 mm) or greater in diameter.
  4. Bobstay shall be installed and fitted to the bow tang forward and anchored at its after end on the stern block or immediately in front of the runner plank.
  5. Tubes and other means of rigid adjustment of stay lengths are permissible.
  6. Devices which adjust stay lengths while yacht is underway are prohibited.
  7. Means for rigid adjustment of mast step location are permissible.
  8. Means for adjustment of mast step location while yacht is underway are prohibited.
  9. Mast step shall be rigidly mounted on the deck of the fuselage.
  10.       English       Metric
      Max Min   Max Min
    Mast step shall permit free orientation of mast.
     
  11.   41 35   1041 890 Horizontal distance from mast step pivoting point (center of ball) to pivot axis of steering runner:
  12.   50 44   1270 1118 Horizontal distance from pivot axis of steering runner to pivot axis of steering post:
  13.   139 ½ 127 ½   3543 3239 Distance from lower mast hound bolt (pivot bolt located in front of mast) to base of mast:
  14. Six sheet blocks shall be installed.
  15. Four sheet blocks shall be installed aft of the rear limit of the cockpit floor: two on the boom and two on the deck. None of these blocks may incorporate a one-way feature. The blocks on the fuselage must be fastened in a manner such that anything penetrating the deck may only be performing the function of fastening, and no other function.
  16. One sheet block shall be located forward on the boom within 1' (304 mm) of the mast. This block may incorporate a one-way feature.
  17. One sheet block shall be installed on the tiller post. This block may incorporate a one-way feature.
  18. The sheet must be attached to the boom and pass through all blocks as shown in plans.
  19. Blocks must be individual and have fixed positions on fuselage and boom.
  20.       English       Metric12/01/2012 Procedure for measuring a DN Sail
      Max Min   Max Min
    Sheet may run inside the boom between the forward block and the 2nd block.
     
  21.   ---- 43.07   ---- 1094 The distance from the center of the runner plank to the base/foot of the side stay on the end of the plank must be:
  22. The components of the mast hound may affect the free orientation of the mast by either forcing mast rotation or limiting mast rotation.

Please see the Rigging Interpretations.