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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.

Extrusion length (ft in)7' ft in
Luff tape size (mm)5 mm
Luff tape size (in)#6 (6/32) in
DXF5d50afca-968b-4781-9b80-f2a5f0f9b18f.zip#7412.11_5-8.DXF 
DWG9b166cb2-7b8c-487b-bdfc-255d88d3a408.zip#7412.11_5-8.DWG 
IGSd679e292-6c49-4359-8048-77214b8ba23f.zip#7412.11_5-8.IGS 
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 (mm)143 mm
A (in)5 5/8 in
B (mm)231 mm
B (in)9 1/8 in
C maximum (mm)406 m
C maximum (in)16 in
D (mm)66  mm
D (in)2 9/16 in
E maximum (mm)1314 mm
E maximum (in)51 3/4 in
E minimum (mm)1187 mm
E minimum (in)46 3/4 in
F maximum (mm)384 mm
F maximum (in)15 1/8 in
F minimum (mm)306 mm
F minimum (in)12 1/16 in
G maximum (mm)348 mm
G maximum (in)13 15/16 in
G minimum (mm)276 mm
G minimum (in)10 7/8 in
H (mm)208 mm
H (in)8 3/16 in
I (mm)97 mm
I (in)3 13/16 in
J maximum (mm)164 mm
J maximum (in)6 7/16 in
J minimum (mm)85 mm
J minimum (in)3 3/8 in
K (mm)32 mm
K (in)1 1/4 in
L (mm)36 mm
L (in)1 3/8 in
Extrusion length (m)2.13 m
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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