Harken USA shipping and receiving will be closed for physical inventory from 11:00 AM CST, Wednesday, September 28th through Friday, September 30th. Other departments will be available as usual. We will resume shipping and receiving orders on Monday, October 3rd.

product
mouseover to enlarge
Unit 1 Underdeck Furling System Unit 1 Underdeck Furling System Unit 1 Underdeck Furling System Unit 1 Underdeck Furling System
click thumbnail to select

Unit 1 Underdeck Furling System

Part No. 7411.11 1/2
$4,791.00  Not available on-line. Please contact your Harken dealer.
Wire Ø (1 x 19 SS) (mm)6, 7, 8 mm
Wire Ø (1 x 19 SS) (in)1/4, 5/16, 9/32 in
Rod Ø (mm)5.72, 6.35 mm
Rod Ø (dash)-10, -8
Clevis pin Ø (mm)12.7 mm
Clevis pin Ø (in)1/2 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)25 mm
J (in)1 in
K (mm)29 mm
K (in)1 1/8 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)6, 7, 8 mm
Wire Ø (1 x 19 SS) (in)1/4, 5/16, 9/32 in
Rod Ø (mm)5.72, 6.35 mm
Rod Ø (dash)-10, -8 
Clevis pin Ø (mm)12.7 mm
Clevis pin Ø (in)1/2 in
Standard headstay length (m)13.99 m
Standard headstay length (ft in)45' 11" ft in
Maximum headstay length (m)16.12 m
Maximum headstay length (ft in)52' 11" ft in
A minimum (mm)270 mm
A minimum (in)10 5/8 in
A maximum (mm)397 mm
B (mm)140 mm
A maximum (in)15 5/8 in
B (in)5 1/2 in
C minimum (mm)117 mm
C minimum (in)4 5/8 in
C maximum (mm)244 m
C maximum (in)9 5/8 in
Manual: 4656.pdf (open/save)
Manual: 4656PartsUnit1.pdf (open/save)
DWG: 7411.11_1-2.DWG (open/save)
DXF: 7411.11_1-2.DXF (open/save)
IGS: 7411.11_1-2.IGS (open/save)

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

  • United States
  • Australia
  • France
  • Italia
  • New Zealand
  • Polska
  • Sverige
  • UK