Harken 7410.11 MKIV Unit 0 Underdeck Jib Reefing Furling System
Harken’s 7410.11 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 6.7 - 9.1 m (22' - 30')
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) | 30.4 mm |
| B (in) | 5 in |
| Wire Ø (1 x 19 SS) (mm) | 6 mm |
| Wire Ø (1 x 19 SS) (in) | 7/32 in |
| Rod Ø (mm) | 5.03 mm |
| Rod Ø (dash) | -6 |
| Standard headstay length (m) | 11.7 m |
| Standard headstay length (ft in) | 38' 4" ft in |
| Maximum headstay length (m) | 13.8 m |
| Maximum headstay length (ft in) | 45' 4" ft in |
| A minimum (mm) | 175 mm |
| A minimum (in) | 6 7/8 in |
| J (mm) | 23 mm |
| J (in) | 7/8 in |
| K (mm) | 26 mm |
| K (in) | 1 1/32 in |
| Extrusion length (m) | 2.13 m |
| Extrusion length (ft in) | 7' ft in |
| Luff tape size (mm) | 6 mm |
| Luff tape size (in) | #6 (6/32) in |
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