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Unit 2 Underdeck Furling System Unit 2 Underdeck Furling System Unit 2 Underdeck Furling System Unit 2 Underdeck Furling System
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Unit 2 Underdeck Furling System

Part No. 7412.11 5/8
$6,880.00  Not available on-line. Please contact your Harken dealer.
Wire Ø (1 x 19 SS) (mm)10, 8 mm
Wire Ø (1 x 19 SS) (in)3/8, 5/16 in
Rod Ø (mm)7.14, 8.38 mm
Rod Ø (dash)-12, -17
Clevis pin Ø (mm)15.9 mm
Clevis pin Ø (in)5/8 in

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.

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
Wire Ø (1 x 19 SS) (mm)10, 8 mm
Wire Ø (1 x 19 SS) (in)3/8, 5/16 in
Rod Ø (mm)7.14, 8.38 mm
Rod Ø (dash)-12, -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)410 mm
A minimum (in)16 1/8 in
A maximum (mm)600 mm
B (mm)167 mm
A maximum (in)23 5/8 in
B (in)6 5/8 in
C minimum (mm)175 mm
C minimum (in)6 7/8 in
C maximum (mm)365 m
C maximum (in)14 3/8 in
Manual: 4656.pdf (open/save)
Manual: 4656PartsUnit2.pdf (open/save)
DWG: 7412.11_5-8.DWG (open/save)
DXF: 7412.11_5-8.DXF (open/save)
IGS: 7412.11_5-8.IGS (open/save)

DO NOT use Harken equipment for human suspension unless product is specifically certified and labeled for such use.

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