Multiplex CARGO Bauanleitung Seite 16

the two outer holes in the servo output arm 57. Slip the
pushrods through the pushrod connectors 91 on the bay
doors, and secure them by tightening the M3 socket-head
screws 87 using the allen key 76. Carefully adjust the pushrod
connectors attached to the door horns so that the loading
bay doors open and close reliably and accurately. With a
little patience you will find it possible to set the mechanism
very accurately - the servo must not be allowed to stall against
the door stops (servo buzzing: high current drain, threat to
BEC supply, crash hazard). When setting the travel of the
loading bay doors ensure that full movement of the servo is
possible, otherwise the doors and linkages may be damaged.
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19. Installing the rudder and elevator servos
On the underside of the fuselage at the tail end pierce a
tunnel with a screwdriver or - better - a thin round file, running
from the cable ducts to the servo installation wells. Use the
same technique to pierce holes for the cables behind the
loading bay, angled forward into the interior of the fuselage.
The model is designed to be used with one MULTIPLEX MS-
X2 servo for rudder and one for elevator.
Solder each servo lead directly to a 60 cm servo extension
lead, # 8 5032. As described for the aileron servos, connect
separation filter leads # 8 5035 to the elevator and rudder
output sockets on the receiver. Cut off the servo connectors
on the servo extension leads, and route the leads into the
cable ducts from the front. Push them into the cable ducts,
and from there through the pierced tunnels and into the servo
wells in the tail end of the fuselage. Solder the wires to the
connectors, taking care to maintain the wire colour code,
and insulate each soldered joint with a piece of heat-shrink
sleeving. Switch on the RC system and check that the servo
output arms are at neutral before gluing the servos in their
wells.
Shrink the servos in heat-shrink sleeves, or wrap them in
tape as previously described.
Now glue the servos in the wells using 5-minute epoxy, taking
care to apply glue only to the points where the servo is
protected by the heat-shrink sleeve or tape. Apply a strip of
clear tape over the servo cable in the cable duct to prevent it
falling out.
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20. Gluing the steerable tailwheel unit and tailplane to
the fuselage
Fit the previously assembled tailwheel unit in the slot in the
tail end of the fuselage, and temporarily fit the tailplane and
fin and both wing panels. Take great care over this next stage,
as the model can only fly well if the tail panels are aligned
accurately. We take great care to produce accurate
mouldings, but slight manufacturing tolerances can still arise
which make minor corrections necessary.
To remove the fin, swivel the tailwheel unit through 90°.
When you are sure that everything fits accurately, glue the
steerable tailwheel assembly and the tailplane to the fuselage
using 5-minute epoxy, and align them carefully with the wing
panels. Pack up the fuselage with books or similar while the
glue is hardening, so that the tailwheel unit is not stressed
by the model's weight. You may like to secure it with strips of
tape while the epoxy is curing.
21. Installing the tailwheel
Secure the tailwheel 81 with the collet 93 and screw 87.
22. Glue the fin to the fuselage
First offer up the fin 6 to the fuselage "dry" (no glue), set it at
90° to the tailplane and make any adjustments required. At
this point you should also check the steerable tailwheel
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linkage by fitting the prepared rudder using the plastic hinges
90.Glue the fin to the fuselage using 5-minute epoxy, and
align it carefully. When the glue has cured, attach the rudder
by gluing the plastic hinges in the slots. Check that the rudder
moves freely to both sides; the tailwheel wire simply slots
into the gap between the wooden supports in the rudder.
Finally trim the tailwheel support in-fill piece 46 to fit, and
glue it in place as shown. Adjust the position of the collet on
the underside of the tailwheel bush so that landing shocks
are transmitted to the fuselage, rather than to the rudder.
23. Installing the elevator and rudder pushrods
Cut the elevator pushrod 74 to length, and connect the pre-
formed end to the servo output lever. At the elevator end
pass the pushrod through the pushrod connector, set the
servo and elevators to neutral, and tighten the screw 87 to
clamp the pushrod.
Repeat the procedure with the rudder pushrod 73.
Installing the RC system
The receiver should be installed in the area above the loading
bay using Velcro (hook-and-loop) tape. You will need to glue
the "hook" tape to the fuselage using 5-minute epoxy, as the
tape adhesive is not strong enough on its own. Run the
receiver aerial through the remainder of the bowden cable
outer sleeve (approx. 100 mm long), and route it up and out
of the fuselage. Tension it to the tip of the fin using the rubber
band 83. Push a pin into the top of the fin to accept the
rubber band.
24. Installing the speed controller
The speed controller for the four motors should be installed
in the fuselage in the canopy area, adjacent to the flight
battery, and connected to the receiver. Glue the "hook" side
of the tape to the battery cradle using cyano. Connect the
"fuselage" motor cable 96 to the speed controller to connect
the motors in the wings to the speed controller.
25. Installing the flight battery
Glue two strips ("hook" side) of the Velcro tape 55 in the
battery cradle, and glue the "loop" side 56 to the underside
of the flight battery. Apply a loop of strong fabric adhesive
tape round the battery so that you can pull it out of the
fuselage easily. Place the battery in the battery cradle, and
complete all the connections.
Do not connect the flight battery connector until you have
first switched on the transmitter, and you are sure that
the throttle stick or other motor control is set to "OFF".
Attach the wings to the fuselage, and complete the
connections. Switch on the transmitter and connect the flight
pack to the speed controller. Note that in the standard model
configuration your speed controller needs to be a "BEC" type
(receiver battery supply from the flight pack). Switch on the
motors briefly and check the direction of rotation of the
propellers. Hold the model firmly when running the motors,
and be sure to remove any loose, light objects from the area
behind the model.
Caution: even small motors and propellers can cause
injury and damage!
Important note: BEC receiver power supply
If you use the MULTIcont 40 BEC speed controller and the
servos recommended in the introduction to these instructions,
it is still possible to use the BEC facility. The maximum cell
count with this arrangement is 8 cells. If you decide to use
more powerful servos (higher current drain), a separate
receiver battery will have to be installed.
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