16
The all-flying tailplane
The elevator bell-crank in this model is already pre-installed and ready for use. It may
only be necessary to slightly rework the groove milled onto the vertical stabiliser. The
tailplane halves are fitted using both Ø 3 mm steel wires. Push one steel wire through
the locating hole into the fin, the second through the milled groove in the fin and
bellcrank. Now both tailplane halves can be pressed fully home onto the steel wires.
CAUTION! Before pushing the tailplane halves onto the steel wires for the first time
these must by all means be checked for absence of burr. The tailplanes contain a
built-in locking system which may be damaged by burred edges on the wires and use
of excessive force.
CAUTION! With regard to the ARC-version of the model please ensure that the
tailplane is assembled with the correctly, with the upper-side of the elevator
uppermost. You can identify the upper-side by its dot marking at the root rib.
The Rudder
Locate and open-up the two hinge points along the leading edge of the rudder and
carefully mark the corresponding hinge points along the centre of the rudder post.
Now drill the holes using a Ø 3.5 mm drill to accommodate eye-bolts used to form the
hinge and screw these into the rudder post, but do not bond in place just yet. Insert
the GRP hinge pin through the guide tube located in the leading edge of the rudder
such that it passes through the three holes in the eye-bolts – to form an effective
hinge. Now carefully check the movement and throw of the rudder with respect to the
fin and adjust the depth of the hinge, by screwing in (or out) the three eye-bolts until
you find the optimum depth. Mark the position of the eye-bolts before bonding into
place using a suitably thickened epoxy, re-install the rudder and adjust as necessary
before finally allowing the hinge points to set. Tip: It is possible to unscrew the hinge
bolt and reset it with a little more adhesive should you find it necessary to make an
adjustment after the hinge bolts have been set into the fin post.
