Hangar 9 Piper J-3 Cub 40 ARF - Manual (Page 28)

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Required Parts
• Wing • Fuselage
• 4-40 lock nut (16) • 4-40 nut (4)
• Strut support anchor (4) • Strut bracket (4)
• Strut end (4) • Strut (narrow) (L&R)
• Strut (wide) (L&R) • Strut brace (long) 2
• Strut brace (short) (2) • Strut cross brace (2)
• #2 x 3/8" screw (4) • Fuselage hatch
• 1/4-20 x 2" nylon bolt (2)
• 4-40 x 1/2" socket head screw (24)
Required Tools and Adhesives
• Hex wrench • Adjustable wrench
• Threadlock
• Phillips screwdriver (small)
  Step 1
Attach two strut brackets to the bottom of the wing using
four 4-40 x 1/2" socket head screws. Use threadlock to
prevent the screws from loosening during flight.
  Step 2
Thread the strut support anchors into the holes in the
wing. The anchors have external threads.
  Step 3
Attach the strut to the strut brackets using two 4-40 x 1/2"
socket head screws and two 4-40 lock nuts. The wide strut
goes towards the leading edge, the narrow strut towards
the trailing edge.
Note: The airfoil of the struts matches the
direction of the wing. The struts also have
fittings in the center, which will face towards
the wing when installed.
Section 9: Wing Installation