Harken 7311.10 Cruising Jib Reefing & Furling - Manual (Page 13)

Assembly Cut Top Foil/Slide Foil on Stay/Assemble Trim Cap
Cut foil to length using hacksaw.
Deburr inside edge
using rat-tail file.
Insert trim cap. Use centerpunch to mark
two top foil trim cap holes ½" (12 mm)
down from top of foil on each side of
sail groove.
Remove trim cap. Drill two 1 /
8
" (3 mm)
holes in foil for self-tapping screws.
08/23/10 Unit 1, 2 Cruising 13