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Next you need to sand off a few mm on
one side of the rudder. This will create an
angle to allow the rudder to move later.
Hold the rudder to the fin to check the
max deflection and sand until the desired
angle is reached.
Sand of 1mm of balsa and fiberglass from
the bottom end of the rudder to allow it to
move freely when it is installed.
Cut slots for the CA hinges into the rudder.
Ensure the slots are in the correct edge.
The slots should be cut directly between the
balsa piece and the fiberglass skin.
Glue the hinges with thin CA.
Once the glue has cured, hold the rudder
against the fin and mark the hinge position.
Cut the slots and glue the rudder in place
with thin CA. Check the movement.
The rudder pushrod position will heavily
depend on the later servo position. As the
clearance between duct and fuselage top
is not very big we have decided to install
the servo further forward in the fuselage.
If you are using a very slim servo which
can fit under the fin inside the fuselage,
without blocking the exhaust duct you can
choose a more direct linkage for your
Sniper.
The picture above shows the
recommended routing of the pushrod
inside the fuselage.
As the pushrod will be routed inside the
fuselage, mark a 20mm long exit slot for the
pushrod on the fin (use the picture above as
reference). Cut the slot out.
