6
MKIV Ocean Unit 3
Feeder height
Max 49 5/16" (1252 mm)
Min 45 1/2" (1156 mm)
Tack setback
1 15/16"
(49 mm)
9 3/4 "
(247 mm)
3 1/8"
(79 mm)
7 3/8"
(188 mm)
Max 18 3/8" (467 mm)
Min 16 9/16" (421 mm)
Max 16 5/8" (420 mm)
Min 14 7/16" (373 mm)
Luff Tape Length
Note feeder height and extend bottom of luff tape downward so it is below
feeder. This will prevent luff tape from catching in feeder as
sail is lowered.
Tack and Head Shackles
Make sure tack and head shackles fit sail
rings. Minimum inside dimensions of
standard head and tack shackles are:
(A) 2" (50 mm)
(B) 13/16" (21 mm)
Sun cover
Sun covers may be installed on either side of the sail.
Be sure to match other sails in the customer's inventory.
Long link plate note:
If a long link plate is used,
add
the following dimen-
sions to feeder, tack shackle, and drum height. The 3/4" (19.1 mm) and
7/8" (22.2 mm) link plates can shorten to one of five hole positions. The 7 3/4"
(197 mm) is with the link plate shortened all the way.
Do not add to halyard swivel or top terminal dimensions.
3/4" (19.9 mm) Clevis pin
Add
16
5
/
8
" to 7
3
/
4
"
(422 mm to 197 mm)
7/8" (22.2 mm) Clevis pin
Add
16
5
/
8
" to 7
3
/
4
"
(422 mm to 197 mm)
Note: These
additions
are determined by subtracing the short link plate
assemblies from the length of the long link plate assembly.
1" (25.4 mm Clevis pin
Add
16
1
/
2
" 420 mm)
1 1/8" (28.6 mm) Clevis pin
Add
16
1
/
2
" 420 mm)
A
B
Luff Length
Note offsets above and below sail.
A shorter luff may be required if a halyard restrainer is necessary
(page 24) or a toggle or long toggle assembly is used to raise drum.
If luff of sail is not long enough to put halyard swivel near top of
headstay foil, a pendant must be added (see page 24).
Tack Setback
Note setback for tack shackle and cut the sail accordingly. Min is for eye/jaw
and jaw/jaw toggles. Max is for stud/jaw toggles. See long link plate note.
Luff Tape Size -6 (5 mm or 6/32")
J - Finished luff tape size: 5.5 mm (0.215")
K - Luff rope size: 4.8 mm (6/32", 3/16")
L - Max Ø in sail groove: 6.5 mm (0.26")
M - Gap in sail groove: 2.4 mm (0.096")
J
K
L
M
Preassembly
Dimensions/Sailmaker's Instructions
Max 8 15/16"
(227 mm)
Min 7 1/8"
(181 mm)
