18
WING JOINING & COMPLETION
1.
With left wing still pinned down, position RIGHT WING
in place next to it. Raise RIGHT WING tip and support it using
die-cut gauges; for long wing-support wing at 5th rib in from tip
(as shown above) for short wing-support under 3rd rib (as
shown). Note: gauges are shaped to fit under curved L.E. and
flat T.E. position accordingly. Hold gauges firmly to the ribs by
tack-cementing or stationery clamps, clothespins, etc.
2.
Photo above shows joiners and clamps ready for instal-
lation in next step. Remove the die-cut areas from one L.E.
joiner, this joiner goes behind the L.E. Also , when installing
the clamps, position the stamped markings on the L.E. clamps
towards the front of the wing.
3.
Tape windshield to fuse. Check the fit of the fuse cabin
front in place at L.E. opening it. It should fit just loose enough
to allow room for covering material.
Study entire center joint; all end parts of right wing
should just touch those of the left (tiny gaps are all right). If the
fit between most parts is a little loose because one
part protrudes too much, slightly sand only the protruding part
for better fit. When sanding it is better to take off too little
than too much!
TEMPORARILY set dihedral joiners in place using die
cut clamps provided to hold joiners tight against spars.
Be sure RIGHT WING is held firmly against LEFT
WING and pin in place as shown above. Remove joiners.
4.
Apply a liberal bead of glue to joints of spars, sheeting
and T.E.
Apply two ribbons of glue to one side of both main spar
joiners, near the top and the bottom. Position one end of joiner
in place and swing the other end up against spars-hold momen-
tarily. Repeat for other joiner-immediately reinstall clamps to
hold both joiners tight on spars.
Install L.E. joiners in same manner (joiner with side
cut-outs at rear of spar). When installing the clamps, position
the “L.E.” markings toward the wing front.
Glue T.E. joiner in space.
5.
Glue filler blocks in position at T.E.
Refer to location shown on plan and center your aileron
servo over bottom sheeting joint.Allowing 1/16” clearance, posi-
tion rear ribs No. 1 on both sides of the servo. Glue ribs in place,
being careful not to glue servo. Remove servo.
Position one half of one front rib No. 1 so one side aligns
with center line of wing. Adjust rib to align with spar center
joints,. Glue in place.
Glue remaining No. 1 rib to first rib, making double thickness
center rib at center joints.
Be sure to glue any joints still needing glue.
6.
Remove all clamps, gauges, and pins from wing structure.
