Composite-ARF CARF-Models Spitfire Building Instructions page 13

Control surface/servo installation cont.
Take a two inch piece of 3mm
threaded rod and bend the end as
shown. Scuff the last one inch of the
rod on both the inside and outside.
Insert the 3mm rod and tack glue
with CA to hold it centered in the
carbon rod. We wrapped the last
one inch of our rod with thread
soaking it with thin CA for extra
reinforcement. Reinforced epoxy
should be worked in to the end of the
tube with a T-pin working your way
around the 3mm rod. Be sure to
clean off the excess glue from the
threaded rod.
Once the glue has cured, install a
3mm ball link onto the threaded rod.
Bolt the ball link to the elevator with a
3mm screw and lock nut. Now the
elevator can be installed. Insert the
control rod through the hole in the
rear and guide up to the servo while
aligning the elevator. The elevator is
hinged with a 1mm rod cut to length.
Guide the rod through the elevator
and the holes in the hinges. The rod
can be held in place with a small dab
of epoxy. Should you need to
remove the elevator later you can
just grind out the epoxy. With the
elevator installed, you can now hook
up the elevator servo using a ball link
bolted to a servo arm. After the
elevator is installed we can install the
rudder.
NOTE: Use a piece of scrap
plywood to make a support for the
elevator pushrod about half way
back and mount it to the fuse.
The only work required to the rudder is the installation of the control horns.
Continued
Composite-ARF Spitfire 13