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Composite-ARF Spitfire
19
Wing assembly (Control horns)Cont.
Tack glue the flap control horn in
place with CA and final glue with a
bead of epoxy on both the inside and
outside of the flap.
Wing assembly (servo pockets)
We now can mark and cut out the
holes for the servos. Let’s start with
the aileron. Apply masking tape to
the wing and transfer the line made
earlier for the control horn as shown.
This will be the edge of our pocket.
Measure from the aileron cutout in
the wing 4 3/16” (106mm) forward.
This will be the back edge of our
pocket. From here, mark the forward
line 2 7/8”(73mm) The width of the
hole will be 1 11/16” (43mm). Use
an Xacto knife to cut out the hole.
Many light passes with the knife will
result in a very clean cutout.
The flap servo hole will be the same
size. Use the photo as a guide to
locate the hole Apply masking tape
to the wing. Mark a line 1/4”(6mm)
from the panel line directly in front of
the flap control horn as shown. This
will be the edge of our pocket. From
the flap hinge line, measure up
3”(76)mm. This will be the back
edge of our pocket. Measure and
mark the remaining lines and cutout.
Wing assembly (servo installation)
We will use the holes just cut as a
guide for the servo location. A
1/2”(13mm) servo arm is all that’s
required for the ailerons. Mount the
servo arm to the servo and mount
the servo to the servo mount, then mount to the lower section. Use the photo as a
guide for servo orientation,note the output shaft is in the rearward position.
Continued
Aileron cutout marks shown above
Flap cutout marks shown above