194
7410.30
7411.30
A
C
B
7411.11 1/2
A
B
7410.11
7410.31
7411.31
J/122 © J/Boats
All MKIV Underdeck furlers feature
a ball bearing halyard swivel.
Dimensions
MKIV Underdeck Unit 1
Typical Boat Length 8.3 - 11 m (28' - 36')
Wire Ø (1 x 19 SS)
Rod Ø
Clevis pin Ø
6, 7, 8 mm (1/4", 9/32", 5/16")
-8, -10 (5.72, 6.35 mm)
12.7 mm (1/2")
Headstay Length  Standard 13.99 m (45'11"); max 16.12 m (52'11")
Part No. 
Description
 7411.11 1/2 
 Furling system with 12.7 mm (1/2") clevis pin 
 Optional Parts 
 7411.30 
 Extra 2.13 m (7') luff foil extrusion 
 7411.31 
 Extra 178 mm (7") connector with bushings 
MKIV Underdeck Unit 0
Typical Boat Length 6.7 - 9.1 m (22' - 30')
Wire Ø (1 x 19 SS)
Rod Ø
Clevis pin Ø
5, 6 mm (3/16", 7/32")
-4, -6 (4.37, 5.03 mm)
—
Headstay Length  Standard 11.7 m (38'4"); max 13.8 m (45'4")
Part No. 
Description
 7410.11 
 Furling system 
 Optional Parts 
 7410.30 
 Extra 2.13 m (7') luff foil extrusion 
 7410.31 
 Extra 165 mm (6 1/2") connector with bushings 
Unit
Part
No.
A
B
C
Min
Max
Min
Max
in
mm
in
mm
in
mm
in
mm
in
mm
0
 7410.11 
 6 7/8 
 175 
 
 
 5 
 30.4 
 
 
 
 
1
 7411.11 1/2 
 10 5/8 
 270 
 15 5/8 
 397 
 5 1/2 
 140 
 4 5/8 
 117 
 9 5/8 
 244 

View this content as a flipbook by clicking here.