• 5.3 Jib The jib shall be fitted with a 1X19 luff wire of not less than 3 mm. The bearing surface to bearing surface length shall be 5305 -0 +13 mm.
    • 5.3.1 The leech length shall not exceed 4752 mm nor be less than 4676 mm.
    • 5.3.2 The foot length shall not exceed 2207 mm nor be less than 2131 mm.
    • 5.3.3 The luff length shall not exceed 5240 mm nor be less than 5164 mm.
    • 5.3.4 The weight of the head of the jib shall not exceed 38 mm.
    • 5.3.5 The leech shall not be convex.
    • 5.3.6 Clew boards and battens are prohibited.
    • 5.3.7 The midpoint of the foot is determined by folding the jib vertically and superimposing the tack and clew matching the edges of the sailcloth. The head of the jib is held firmly and a measurement taken from the "measurement point" of the head to the lowermost edge of the roach at the midpoint with two pounds tension. This dimension shall not exceed 4984 mm. This specification is to take precedence over any other specifications insofar as any conflict is concerned.
    • 5.3.8 Leech and foot lines are permitted.
    • 5.3.9 Jib cunningham shall not lead to the deck.