Elite Models 8mm EPP Acrocub Instruction Manual page 14

Step12. Use low temperature hot glue to glue two
aileron servos onto the wing.
Step13. Use the servo arm as a guide to cut a slot
for control horn. Apply some foam glue into the
slot and insert in the control horn.
(Make sure the hole on the control horn is aligned
with the hinge line.)
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Step14. Attach the Z bend wire (23 x 1mm) to the
servo arm and control horn.
Step15. Connect two pushrods together using the
heat shrink tubing, then use the lighter to shrink
the tubing, at last drop some think CA inside the
tubing.
Step16. Thread two servo leads through the holes
to the bottom of the fuselage.