IMPORTANT:
Wait a minute
before joining the wing panels
together - to make sure that the
glue does not slowly push the
joiners out of the wing they are
glued into. In this case you will
need to drill a very small (1mm)
hole through the sides of the
tubes at the outboard end (ac-
cess from the landing gear bay)
to release the hydraulic pres-
sure caused by the glue.
Now slide the wings together,
and bolt them to the fuselage,
which is supported upside-
down in a model stand, and
leave until the glue has com-
pletely cured. When the epoxy
has cured they should slide
apart easily. Remove the wax
from the exposed joiners and
wing roots with lighter-fluid. You can apply some soft pencil lead (graphite) to the exposed half of
the fibreglass wing joiner if it is a bit tight to make it slide smoothly into the other wing.
Servo Installation
Aileron servos
The ‘U-shaped’ milled lite-ply mounts for the aileron
servos are sized to suit the 30mm wide JR DS-161
or Hitech 5125 servos, but can be sanded to fit the
33mm wide JR DS-3301 or Graupner DS-3328 if
you prefer to use these - and they have slightly more
torque and larger gears. In any case we recommend
that you use aileron servos with a minimum of 4kg
torque. Fit the servos in the opposite orientation in
the 2 wings so that you can Y-lead them together,
and use a single Rx channel for operation.
Sand the upper surface of the 2 ply mounts and glue
them onto the 6mm thick balsa sheet doublers, as
shown, to position the servos closer to the lower
wing surface. Don’t forget to make a ‘left’ and a ‘right’
servo mount ! Sand the mounts and square-off the
radiused corners as necessary so that your servos
are snug fit. Centre the servos using your Transmit-
ter, fit short servo arms at 90° to the case, set trav-
els to 100%, and screw the servos onto the mounts.
Trial fit the mounts into the wing, and check that the
front of them fits up against the back of the wing
spar, and that the linkage will be exactly parallel to
Fox Composites Co., Ltd.
7
(above) Digital DS161 servo installed in
the milled ply mounts supplied in the kit.
Note the slot cut out for the servo arm,
the linkage line marked on the tape, and
the hole for the aileron horn 10mm back
from the aileron leading edge. The
aileron horn must be installed exactly in
line with the servo arm.
(above) Wing bolts & joiners completed. Note that they are
glued into opposite panels for the best fit, using slow epoxy.
