• 5.0 Sails General
    • 5.1 Only one mainsail, one jib, and one asymmetrical spinnaker shall be on board while racing. Only one set of sails shall be measured in at Johnson 18 Class Association sanctioned regattas.
      • 5.1.2 The mainsail shall be constructed of woven polyester. The jib shall be constructed of a woven polyester or polyester substrate/polyester film laminate. The asymmetrical spinnaker shall be constructed of nylon; polyester is prohibited.
      • 5.1.3 Each mainsail, jib and spinnaker, shall carry a Johnson 18 royalty sticker. The sticker shall be firmly fixed near the tack of each sail on the starboard side. Stickers shall not be transferred from one sail to the other. Stickers were available from Johnson Boat Works, 4495 Lake Avenue South, White Bear Lake, MN 55110.
      • 5.1.4 Sail reinforcement shall be in accordance with current IYRU Sail Measurement Instructions.
      • 5.1.5 The Johnson "18" insignia (Diagram 1.0) shall be black in color and fall between the top two battens midway between the luff and leech and shall closely fill up a rectangle that is 610 mm long and 457 mm high. The upper insignia shall be on the starboard side. The word "JOHNSON" shall be placed on the starboard side of the sail, be black in color, parallel to the leech, and halfway between the lowest batten and the clew. These decals are available from the Johnson 18 Class Association, 4495 Lake Avenue South, White Bear Lake, MN 55110.
      • 5.1.6 The sail number of the yacht shall correspond to the hull number and shall be placed on the mainsail and on the asymmetrical spinnaker. The sail number shall not be less than 305 mm in height and have a space of at least 60 mm between them. The upper number shall be on the starboard side.
      • 5.1.7 The minimum cloth weight for the mainsail shall be 160 grams per square meter. The jib shall be 160 grams per square meter for woven material and 150 grams per square meter of substrate/film laminate. The asymmetric spinnaker shall be a minimum cloth weight of 40 grams per square meter.
      • 5.1.8 Unwoven transparent material for windows is permitted below the half height of the main, jib, and asymmetrical spinnaker. No window dimension shall exceed 1400 square mm. Ant edge of the any window shall not be less than 80 mm from the nearest edge of the sail.
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Subpages (3): Jib Mainsail Spinnaker