c) Mounting the tail fin
Thread the rudder linkage wire (1) into the screw nipple
(2) and place the rudder (3) in the dedicated groove on
top of the fuselage.
Tighten the 2.6 x 18 mm screw shown in the figure from
below.
Put the rudder in the middle position and slightly tighten
the screw on the nipple.
Once the tail units are installed, check the fastening nuts
(4) of the screw nipples on both rudders. The nuts must
be tightened firmly enough that the nipples do not wobble,
though you can still turn them in the rudder horns.
Figure 5
57