Model Airways SOPWITH CAMEL F.1 Instruction Manual page 9

glue. The procedure basically is the same
for the lower wing, except each half is
rigged separately.
Although this rigging technique provides
generally acceptable results, the more
demanding modeler might prefer to knot
the thread through each turnbuckle eye in
lieu of using a continuous run.
The casting for the upper wing's center
trailing edge (CAW19) requires some
adjustment for a good fit. Cut the long pins
at the ends so that they nestle between the
cap strips where they meet ribs CAW02.
You might have to file the pins out of
round to achieve the best fit. Sand the ends
of ribs CAW01 if needed, then glue curved
section of CAW19 to the end of the center
ribs so that 3/64" of the casting extends
beyond the trailing ends of ribs CAW02.
This provides an end seat for the 3/64"
brass rod which is used to make the wing's
trailing edge. See Fig.11. Cut the brass rod
to length before attaching it with CA glue,
and leave a gap between the wing and the
ailerons – Plan 03. Finish off the trailing
edge by wrapping the joints with 1/2"
lengths of copper tape, cut to the width of
the rib cap strips. Use four 1/4" long cop-
per strips to cover the top and bottom
joints between ribs CAW01 and the center
trailing edge.
Carefully separate the ailerons from the
wings by sawing through the ribs between
the rear wing spar and the front aileron
spar. Continue the cut through the wing tip
casting and sand as needed. Referring to
Plan 03-1 and Fig.13 attach the hinges
CAW21 a&b. The gudgeon half (has hole)
attaches to the rear wing spar and the pintle
half (has pin) attaches to the front aileron
spar. In order to lock the aileron to the
wing, arrange the hinges so the pintles of
the middle and outside hinges face the air-
craft center line and that of the inside
hinges face toward the wingtips.
Locate the aileron horns CAW22 and the
aileron cable anchors CAW23 on the
ailerons as indicated in the drawings. The
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horns angle forward and are placed atop the
upper wing and below the bottom wing.
Before gluing in place, notch the rib cap
where each part goes so that the vertical tab
snugs up against its laser-cut rib.
Joining the lower wing halves:
Create the lower wing dihedral by tapering
the bottom ends of the front and rear spars
so that when they are rejoined by parts
CAW38 and CAW39 they will lie flat with-
in the cast joints and the underside of the
outermost ribs(CAW06) will be elevated
25/32" above the work surface. Reference
Plan 03.3. The easiest way to ensure both
sides come out the same is to cut blocks of
the right thickness to hold up the wing
ends while you gently push down on the
center joints. Before gluing this together,
check that the space between the inside flats
of the innermost ribs (CAW03) is 1
13/16".