b'MKIV Underdeck Unit 2Typical Boat Length 10.6 - 14.2 m (35\' - 46\')Wire(1 x 19 SS) RodClevis pin 8, 10 mm (5/16", 3/8") -12, -17 (7.14, 8.38 mm) 15.9 mm (5/8") 7412.30Headstay LengthStandard 18.38 m (60\'4"); max 20.51 m (67\'4") 7413.30Part No.Description7412.11 5/8Furling system with 15.9 mm (5/8") clevis pinOptional Parts7412.30Extra 2.13 m (7\') luff foil extrusionExtra 229 mm (9") connector with bushings 7412.31 7412.31MKIV Underdeck Unit 3 7413.31Typical Boat Length 13.7 - 18.3 m (45\' - 60\') Cable (1 x 19 SS)VarillaPasador11, 12 mm (7/16", 1/2") -22, -30 (9.53, 11.1 mm) 19.1, 22.2 mm (3/4", 7/8")Headstay LengthStandard 22.88 m (75\'1"); max 25.02 m (82\'1")Part No.Description7413.11 3/4 Furling system with 19.1 mm (3/4") clevis pin 7413.11 7/8Furling system with 22.2 mm (7/8") clevis pinOptional Parts7413.30Extra 2.13 m (7\') luff foil extrusion7413.31 Extra 248 mm (9 3/4") connector with bushings Dimensions 7412.11 5/87413.11 3/4A B C 7413.11 7/8Part Min Max Min MaxUnit No. in mm in mm in mm in mm in mm2 7412.11 5/812 11/1632218 9/164716 5/81675 3/813711 5/162873 7413.11 3/416 1/841023 5/86008 3/162086 7/817514 3/83653 7413.11 7/816 9/1642124 1/46168 3/162087 5/1618615381Francis Lee, 18.9 m (62\'), Perry Sliver, Robert H. Perry design, Northwest School of BoatbuildingBoomer Depp BA C183'