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h. Place each horn into its slot and align with the servo and ensure it is
vertical. Each pair of horns (aileron: aileron, flap: flap) should be as
identical as possible in terms of the position of the linkage holes. They
should be the same height above the control surface and the same
distance from the hinge line. Ailerons should have the hole directly
above the hinge line. Flap horns can be placed with the hole a little way
behind the hinge line to assist in achieving the large downwards travel
of the flap.
i. Leave the adhesive to cure.
4. Fitting the linkages
a. Cut eight lengths of 1mm diameter piano wire.
b. Form Z bends in the end of four of them and L bends in the other four
c. Cut four lengths of 3mm od x 1mm id carbon fibre tune
d. Centre the wing servos and the clamp the control surfaces in the
neutral position.
e. Fit Z bend push rods into the control surface horns
f. Slide the CF tubes over them
g. Fit the L bend push rods into the servo horns.
h. Slide the CF tube over the L bend rods and centre equally on both the
L bend and Z bend rods.
i. Run a small drop of thin CA adhesive onto each rod / CF tube joint and
allow to cure.
j. With the servos and control surfaces still centred, add a small drop of
thick CA adhesive to each push rod to horn joint. Zap with a small
amount of accelerator and the flex each joint. This removes all slop in
the linkage.
HyperFlight Sky Series Assembly Guide
6