GILES 202 - Graupner

Elevators
To remove the excess wood and allow the elevators to deflect use the procedure
shown in Figs. 67, 68, 69, 70, 71, 73. The following tools are required: hacksaw blade,
balsa knife, screwdriver, and a hardwood strip around 4 mm wide.
For technical reasons a strip of excess wood is left at the hinge position. To release
the elevators run a balsa knife carefully along the machined slot on the underside, just
touching the elasto hinge, then lever out the residual wood using a screwdriver or a 4
mm wide strip of hardwood.
Saw across the tailplane as far as the slot (elasto-hinge line) to produce the
aerodynamic balance section. Carefully score along the line of the hinge gap on the
top surface of the tailplane using a hacksaw blade (Fig. 73). Finally sand the hinge
line gap and the tailplane, and seal the exposed styrofoam at the tailplane and
elevator using 0.5 mm Ø balsa sheet or glass cloth and epoxy.
Attach the elevator horns (51) to the elevators using the fixings supplied, as shown in
Figs. 80 and 81. The horns and fixings are in the small parts bag VIII.
Assemble the pushrods between the elevator servos and horns (Fig. 95) from M3
clevises, M3 nuts (accessory pack VIII) and suitable lengths of M3 studding, as shown
in Fig. 93.
Wings and ailerons
Release the ailerons from the wing panels using the same method and tools as
described for the tailplane and elevators; see Figs. 69, 70, 72 and 73.
On the underside of each wing panel (16) you will find two machined wells for the
aileron servos. At this point (if not before) you must decide whether to use one or two
high-performance servos for each aileron, and whether these are to be glued directly
into the styrofoam, or installed using Servo-Locks designed for Graupner/JR servos
(bag VI). If only one high-power servo is to be used, it must be installed in the inboard
servo well.
The machined wells are not the correct size for Servo-Locks, and if you wish to use
these servo mounts you will have to enlarge the openings to suit; see Figs. 74 and 75.
The wells are intentionally machined to a size suitable for accepting the servos
directly, i.e. for the glued alternative; they can also be used to accept servos or servolocks
made by other manufacturers.
- Trim the servo well to accept the Servo-Lock (bag VI) and glue the unit in the well
using UHU plus endfest 300. When the epoxy has cured, sand back the excess
material flush with the wing using a sanding block (Fig. 76). If you have access to a
bandsaw you may prefer to cut the Servo-Locks to the correct profile before gluing
them in the wings.
When the aileron servos (at least one high-power servo for each wing panel - right
and left) have been installed, connect the servo leads to genuine Graupner/JR
extension leads and deploy the cables in the factory-prepared ducts. The horns can
then be installed in the ailerons and glued in place, as shown in Figs. 77, 78 and 79.
The position of the horn or horns is shown in Fig. 77.
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