Harken 7412.11 5/8 MKIV Unit 2 Jib Reefing Furling System
Harken’s MKIV Underdeck Jib Reefing & Furling line is the perfect solution for sailors who want an aerodynamic system with a minimal amount of equipment above deck. The underdeck furler provides a low-friction, clean layout solution that minimizes windage, while uncluttering the bow for easy anchor access. Tack sits at deck level, lowering the tack height for maximized sail area. Through-deck bearing into underdeck compartment provides a low profile, nearly watertight system. Typical Boat Length 10.6 - 14.2 m (35' - 46')
Harken’s MKIV Underdeck Furling is the perfect solution for performance racers and cruisers who want an aerodynamic system with a minimal amount of equipment above deck. The drum is located beneath the deck, lowering the tack height for maximized sail area.
| B (mm) | 167 mm |
| B (in) | 6 5/8 in |
| Wire Ø (1 x 19 SS) (mm) | 10 mm |
| Wire Ø (1 x 19 SS) (in) | 5/16 in |
| Rod Ø (mm) | 8.38 mm |
| Rod Ø (dash) | -17 |
| Clevis pin Ø (mm) | 15.9 mm |
| Clevis pin Ø (in) | 5/8 in |
| Standard headstay length (m) | 18.38 m |
| Standard headstay length (ft in) | 60.4 ft in |
| Maximum headstay length (m) | 20.51 m |
| Maximum headstay length (ft in) | 67' 4" ft in |
| A minimum (mm) | 322 mm |
| A minimum (in) | 12 11/16 in |
| A maximum (mm) | 471 mm |
| A maximum (in) | 18 9/16 in |
| C minimum (mm) | 137 mm |
| C minimum (in) | 5 3/8 in |
| C maximum (mm) | 287 m |
| C maximum (in) | 11 5/16 in |
| J (mm) | 32 mm |
| J (in) | 1 1/4 in |
| K (mm) | 36 mm |
| K (in) | 1 3/8 in |
| Extrusion length (m) | 2.13 m |
| Extrusion length (ft in) | 7' ft in |
| Luff tape size (mm) | 5 mm |
| Luff tape size (in) | #6 (6/32) in |
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