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Fig. 32
- Install the receiver battery and slide it forward into the
nose. The switch can be attached to the fuselage using
Velcro tape.
See page 17 for notes on ballasting the model for slope-
soaring.
The electric power system
Fig. 33
- During the following stages it is important to read the
instructions supplied with the motor and the speed con-
troller. Solder the appropriate connectors to the leads
attached to the motor, the speed controller and the flight
battery, and insulate each joint with a separate heat-
shrink sleeve.
Fig. 34
- Place the motor in the fuselage nose and secure it with
two M3 x 6 countersunk machine screws and the moun-
ting ring.
- Turn the motor shaft by hand to check that the cables do
not foul the motor case. If necessary, remove a little mate-
rial from the inside of the fuselage to provide proper clea-
rance.
- Connect the speed controller to the motor and receiver,
and install it in the fuselage.
Fig. 35
- Assemble the propeller and fit it on the motor shaft. Set
the axial clearance of about 4 mm as shown, and tighten
the socket-head screws to fix the propeller to the shaft.
Fig. 36
- Fit the spinner cap over the propeller.
Final stages – both model variants
Fig. 37
- Unwind the flexible wire aerial attached to the receiver.
- Note: if your radio control system includes a six-channel
receiver and has mixer functions, the aileron servos can
Assembly and operating instructions
Parabolic KIT
be connected to two separate channels. In this case you
will need two servo extension leads, No. F 1419, instead
of the Y-lead.
- Connect the servos and the Y-lead to the receiver. Please
refer to your RC system instructions for the correct chan-
nel assignment.
Fig. 38
- Apply a strip of Velcro tape to the underside of the recei-
ver, and stick the mating piece of tape in the fuselage.
- Pierce a 2 mm Ø hole in the fuselage.
- Run the receiver aerial through the hole to the outside.
Do not deploy the aerial inside the fuselage.
Fig. 39
- Place the prepared wing on the fuselage, running the
aileron servo leads forward into the radio bay. Fix the wing
to the fuselage using the M4 x 30 plastic screws supplied.
Fig. 40
- Connect the aileron servos to the receiver using a Y-lead.
Fig. 41
- Electric glider: place the flight battery in the fuselage in
order to balance the model; do not connect it at this
stage.
Fig. 42
- Deploy the receiver aerial along the fuselage towards the
tail, and secure it with a strip of adhesive tape.
Fig. 43
- Fit the canopy on the fuselage again.
Fig. 44, balancing
- The Centre of Gravity (CG) should be in the range 75 to 85
mm back from the wing root leading edge. Mark this point
on both sides of the fuselage.
- Support the model at the marked points and allow it to
hang freely. The CG is correct when the model balances
level, with the nose inclined slightly down.
- Adjust the position of the flight battery if necessary.
5
- Mark the battery location in the fuselage, so that you can
be confident of replacing it in the same position after
removing it.
- Pack pieces of scrap foam round the battery, so that it
cannot shift in flight and alter the model's balance.
Figs. 45 - 48, checking the working systems
Charge the flight battery.
Switch the transmitter on, and move the throttle stick to
the "Motor stopped" position.
Place the fully-charged flight battery in the fuselage and
connect it to the speed controller.
Check the neutral position of the control surfaces: adjust
the swivel pushrod connectors if necessary.
Place the model on the floor and stand behind it.
Check the direction of rotation of the servos:
Move the aileron stick to the right (a), and the right-hand
aileron should rise (a), the left-hand aileron fall (b).
Pull the elevator stick back towards you (c), and the trailing
edge of the elevator should rise (c).
Move the rudder stick to the right (e), and the rudder should
also deflect to the right (e).
If any function works the wrong way round, correct it using
the servo reverse facility for that channel on your transmit-
ter.
Adjust the control surface travels to those stated in Figs. 46
and 47.
Motor run
Hold the model in such a way that the propeller is free to
rotate. Caution: whenever you are working on the model
(for maintenance, or making adjustments) avoid standing
in front of the propeller, or in line with its rotational plane.
The same applies when launching the model.
Note that the propeller blades will open up suddenly when
the motor starts.
Check the motor's direction of rotation: when viewed from
the front, the propeller must turn anti-clockwise. If that is
not the case (perhaps because you are using components
No.
3222KIT
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