b'MKIV MKIV OceanTypical boat size 6.5 - 24.4 m (22\' - 80\') 6.5 - 18.3 m (22\' - 60\') Wire headstay diameter range 4 -16 mm (5/32" - 5/8") 4 - 12 mm (5/32" - ")Rod headstay diameter range -4 to -48 (4.37 - 14.3 mm) -4 to -30 (4.37 - 14.3 mm)Sailor Racer (split drum can be removed) Non-Racer/CruisingShape Aerodynamic Foil Round FoilSwivel Double at head and tack Single at head and tackSizes Five models (0 - 4) Four models (0 - 3)MKIVMKIV MKIVOceanMKIV OceanImproved sail shape and boat control Split drum removesDouble and single-groove foils offerI ndependent halyard and tack swivelseasily for racing (MKIV) smooth sail handlingfurl sail center before head and tack for Line guard and spool remove easilyPrecision-extruded, double-groove improved sail shape when reefedfor use with full-hoist sails. (MKIV) and single-groove (MKIV Ocean) (MKIV).foils for smooth sail handling. Both MKIV and MKIV Ocean have aStainless steel feeder allows fast single-lightweight aluminum halyard swivelhanded hoist and sail changes (MKIV).saving weight aloft to reduce pitching Black-anodized foils (MKIV) and and heeling. clear-anodized foils (MKIV Ocean).Halyard deflectorLead block kitFoil Toggleconnectorsassembly MKIV MKIV OceanDesigned for easy installation Accessories Easy to maintain Small outside drum dimension fits Lead block kit: Easy-to-mount ball Bearings require no lubrication or narrow bows or belowdeck. bearing blocks lead line aft; fit 25 mmisolating seals. C-shaped open connectors with(1") stanchions.low-friction plastic isolators easily Halyard deflector: Install above the foil slip onto headstay wire and into foil. to prevent halyards from wrappingDrum assembly fits over existingaround the foil when furling.turnbuckle allowing easy length adjustment. Harken toggle assembly accepts standard turnbuckle using swage, rod, Norseman, or STA-LOK terminals. Eye-jaw toggle flips for fork or tang chainplate installation.Stainless steel link plates raise the drum and fit over existing turnbuckle, resist scratches, Torlon is a registered trademark of Solvay Advanced Polymers L.L.C. and can be easily repolished.STA-LOK is a registered trademark of STA-LOK Terminals. 173'