4
Building and Operating Instructions - Air Trainer 140 ARF
No. 2581
Fig. 1
- The picture shows the parts required to install the fin and
tailplane.
Fig. 2
- Slide the tailplane into the slot in the tail end of the fusela-
ge. Ensure that the holes for the elevator horn are on the
left-hand side of the fuselage. Push the fin into the fusela-
ge from the top. Screw the clevises onto the threaded end
of the elevator and rudder pushrods.
Fig. 3
- Turn the prepared assembly on its back, and position the
tailwheel unit as shown. Note that the tailwheel steering
arm „A“ must engage in the driver „B“ mounted on the
rudder.
Fig. 4
- Screw the complete tail assembly to the fuselage as
shown.
- Attach the horn and spreader plate to the elevator, working
on the underside.
Fig. 5
- Locate the clevis attached to the pushrod, connect it to the
horn, and push a retaining ring over the clevis to secure it
(see picture).
Fig. 6
- Attach the horn and spreader plate to the rudder, working
on the right-hand side. Locate the clevis attached to the
pushrod, connect it to the rudder horn, and push a retai-
ning ring over the clevis to secure it (see picture).
Fig. 7
- The picture shows the parts required to install the under-
carriage.
Fig. 8
- Screw the two undercarriage units to the mounting plate
on the underside of the fuselage using the four retaining
screws supplied.
Fig. 9
- Locate the parts required to assemble the propeller and
spinner and place them ready.
Fig. 10
- The illustration shows the propeller, propeller driver and
spinner backplate already assembled.
Fig. 11
- Finally screw the spinner to the propeller driver (see illus-
tration).
Fig. 12
- Attach the horn and spreader plate to one aileron, working
from the underside. Screw the clevis (with retaining ring)
onto the threaded pushrod. Connect the pushrod to the
servo output arm first, and then to the aileron horn. Repeat
the procedure with the second wing panel.
Fig. 13
- The picture shows the parts required to assemble the
wings.
Fig. 14
- Slide the main spar „C“ and the plywood reinforcement „D“
into the wing.
Fig. 15
- Push the two wing panels together, then cautiously press
the two joiner lugs „E“ and „F“ into the slots in the wing.
Fig. 16
- Fix the wing to the fuselage using the four M4 x 53 screws,
as shown in the illustration.
Fig. 17
- The illustration shows the distributor board for the aileron
connections and the navigation lights in the wings.
Fig. 18
- Connect the aileron servos „G“ and „H“ and the navigation
lights „I“ and „J“.
Caution:
the black wire is negative (-), the red wire is + (positive)
Fig. 19
- The battery compartment is opened by disengaging the
latch „K“ and squeezing the two lugs „L“ together. We
recommend that you stick two strips of „hook“ tape to the
bottom of the compartment.
Fig. 20
- Stick the „loop“ tape to the flight battery.
Fig. 21
- Place the battery in the compartment, and press it firmly
into place: the hook-tape and loop-tape prevent the battery
shifting in flight.
Do not connect the battery to the speed
controller at this stage!
Fig. 22
- Close the battery compartment, and use the latch „K“ to hold
the cover closed.
Fig. 23
- Please refer to the radio control system instructions before
tackling the next stage.
- Connect the servos to the appropriate receiver sockets.
- Connect the speed controller.
- Position the receiver as shown, and fix it in place with hook-
and-loop tape to prevent it shifting.
- Deploy the receiver aerial as recommended in the RC sys-
tem instructions.
- Move the throttle stick to the „Motor off“ position, then
switch the transmitter on.
- Open the battery compartment and connect the flight bat-
tery.
- Program the Stop and Full-Throttle positions of the speed
controller as described in the instructions supplied with the
unit.