Joining The Wing Halves; Wing Mounting; Align The Wing - Model Tech SUKHOI 40 Instructions Manual

JOINING THE WING HALVES

6) Mix a generous amount of Kwik Bond
30 Minute Epoxy. Working with only one wing
half for now, apply a thin layer of epoxy inside the
plywood dihedral brace box and on only half of
the dihedral brace. Make sure to cover the top
and bottom as well as the sides and use enough
epoxy to fill any gaps.
7) Slide the dihedral brace into the plywood
box up to the centerline. Remove any excess
epoxy before it dries using a paper towel and rub-
bing alcohol. Allow the epoxy to cure before
proceeding. See photo # 3 below.
Photo # 3
DIHEDRAL
BRACE
8) Once the epoxy has cured, trial fit both
wing halves together to double check that the wing
halves still fit correctly.
9) Mix a generous amount of Kwik Bond 30
Minute Epoxy. Apply a thin layer of epoxy to the
exposed half of the dihedral brace, the inside of
the plywood box in the second wing half and the
entire surface of both root ribs. Make sure to
use enough epoxy to fill any gaps.
10) Slide the two wing halves together and
carefully align them at the leading and trailing edges.
Wipe away any excess epoxy using a paper towel
and rubbing alcohol. Use masking tape to hold the
wing halves in place until the epoxy cures. See
photo # 4 below.
Photo # 4
MASKING
TAPE
11) When the epoxy has cured, double
check the center section joint. If any gaps are
present, mix a small amount of Kwik Bond 30
Minute Epoxy and carefully fill any remaining gaps.
Allow the epoxy to fully cure before proceeding.
PARTS REQUIRED
{1} Wing w/Ailerons & Hinges
{1} Plywood Wing Bolt Doubler (W-39)
{2} 5mm x 30mm Machine Screws
{2} 5mm Flat Washers
{2} 5mm Blind Nuts

ALIGN THE WING

1) Place the wing into the wing saddle mak-
ing sure that the two preinstalled dowels in the lead-
ing edge of the wing fully engage the predrilled holes
in the forward bulkhead in the fuselage. Push the
wing as far forward as possible. The leading edge
should fit tight against the bulkhead.
It may be necessary to sand the forward
section of the wing to fit the fuselage sides.
If so, use 220 grit sandpaper.
2) Using a ruler and a pen, measure and
place a mark on the centerline of the bottom of
the fuselage at the rear of the wing saddle. Also
measure and place a mark at the centerline of the
wing at the trailing edge.
3) With the wing in the wing saddle, align
the two centerline marks and hold the wing
securely in place using a couple of pieces of
masking tape. See photo # 5 below.
Photo # 5
WING
CENTERLINE
6
FUSELAGE
CENTERLINE