Harken 7411.11 1/2 MKIV Jib Reefing & Furling - Manual (Page 15)

UNIT 3
(3/4, 7/8
)
Length Chart
Dimensions Inches mm
A Center of Pin to Bottom of Terminal
B Bottom of Terminal to Top of Foil 1 25
C Top Foil Length
D Number of Foils ________ x 84" (2133.6 mm)
E Bottom Foil
24 610
F Unit 3-
3
/
4
–Bottom of Foil to Jaw/Jaw Toggle 24 610
F Unit 3-
7
/
8
–Bottom of Foil to Jaw/Jaw Toggle 23.4 594
Pin-to-Pin Length
Measure A and add to this chart
and length chart below
Inches mm
A
B
1 25
E 24 610
F 23.4 594
Total A+B+E+F
Make sure upper
measurement points
of A and pin-to-pin
are the same.
1 Pin-to-Pin Length
2 Subtract ABEF –
3 Result (Pin-to-Pin – ABEF)
4 Subtract D –
To find “D” pick number from chart below that is clos-
est to, but not greater than total from step 3.
Inches mm
7 x 84 = 588
8 x 84 = 672
9 x 84 = 756
10 x 84 = 840
11 x 84 = 924
7 x 2133.6 = 14935.2
8 x 2133.6 = 17068.8
9 x 2133.6 = 19202.4
10 x 2133.6 = 21336
11 x 2133.6 = 23470
Example–If result from Step 3 is:
800 inches “D” = 756 inches 20,000 mm
“D” = 19,202 mm
5 Result (C) Top Foil Length
After completing worksheet above fill in A, C and D below. Add “A”
through “F” to confirm total equals your pin-to-pin measurement.
Length Check
Alternate
Measurement
Point
A
TOP FOIL LENGTH WORKSHEET
A
C
D
E
F
Pin
to
Pin
B
Preassembly Unit 3—Top Foil Length
MKIV Underdeck Unit 3 15
Pin
to
Pin