The main horns are doubled for maximum
safety and stiffness. Glue the bottom horn
first, but make sure that the servos are
centered (of course you can use a match box
to get rid of that problem).
then glue the small doubler to the bottom
horn. Don’t forget to use a medium rough
sand paper to prepare the glue surfaces. Use
thin CA glue.
Then attach the top horn to the servo disc
and the small phenolic doubler.
Attention: The top servo horn has the addi-
tional horns for servo No. 3 and No. 4. Both
sides are in mirror, so check carefully which
horn you glue to which side. the additional
arms point backwards, and the slot for the
pull/pull cables must point forward.
This means, the 2 big discs are NOT the
same. It is too late, when you find out after
you glued them on!