Harken C7475 MKIII Jib Reefing & Furling - Manual (Page 5)

■ FOIL CUT LENGTH
Foil cut length is based on pin-to-pin length as measured
from center of upper pin (attaches the stay to the mast) to
center of lower pin (attaches the furling unit to the boat).
Measurement includes the masthead toggle.
To check foil length, lay foils alongside stay before cutting
top foil.
■ TOP FOIL CUT LENGTH
Instructions For Worksheet Below:
1 Fill in total pin-to-pin length.
2 Fill in A length.
3 Add A, B, E, F, G and subtract from total pin-to-pin length.
SUM = _________
4 Choose the number from foil multiplier below closest to,
but not greater than, sum from step 3. Fill in D length.
7 x 2133.6 = 14935.2
8 x 2133.6 = 17068.8
9 x 2133.6 = 19202.4
10 x 2133.6 = 21336.0
11 x 2133.6 = 23469.6
12 x 2133.6 = 25603.2
5 Add A, B, D, E, F, G.
Subtract from pin-to-pin length for C (top foil length).
PREPARATION Foil Length
December 2004 Nautor Furling 5
WORKSHEET: DETERMINE TOP FOIL LENGTH
DIMENSIONS
C7475
-30
22.2 mm
PIn
C7550
-40
25.4 mm
PIn
A Center of PIN to Bottom of
Terminal
_____ _____
B Bottom of Terminal to Top of Foil 20 mm 20 mm
C Top Foil _____ _____
D __?__ 84” (2133.6 mm) Foils
(Quantity) _____ _____
E Feeder Gap 60 mm 76 mm
F Bottom Foil 610 mm 610 mm
G Clevis Pin to Foil 661 mm 674 mm
Total Pin-to-Pin Length _____ _____