Elevator control horn installed with CA.
Rudder control horn installed similarly. No slit is necessary since the
control cable will be attached permanently.
Make two torsion springs for the rudder and the elevator from the
supplied 0.5mm spring wire.
Make two holes, one in the rudder near the control horn, one in the
main part of the vertical tail, using either a micro drill bit or a
sharpened piece of slightly thicker wire. Insert the U-spring into the
holes. Apply a tiny drop of CA to each hole to reinforce the foam
and lock the spring in place.
