18. Installing the undercarriage
Fit the wheels 71 on the main undercarriage unit 70, using two collets 72 to retain each one. Fig. 33. Squeeze the undercarriage together gently, push it into the support 74 and allow it to snap into place. Fig. 34
Completing the wings 19. Installing the spar
Fit the spar tubes 40 in the spar joiner 31, secure them with glue and trial-fit them in the wing. Apply cyano to the spar channel in the wing, then push the spars and the spar joiner quickly into place. Set the wing straight before the adhesive has a chance to cure. Sight along the wings from each tip to check for unwanted warps.
Fig. 35
Optional ailerons
If you wish to fly the model in rudder / elevator form, simply skip points 19 - 22. The servo wells can be sealed (later) using the decals provided.
With the standard dihedral the model flies very well with rudder or ailerons as the primary turning control. It is also possible to fit ailerons to the wing at any time.
If you wish to fly the model with ailerons (“full-house” control), resume construction at this point:
20.Freeing the ailerons, installing the aileron servos Cut a slot at both ends of the ailerons, which are attached to the wing 6. Work the ailerons to and fro repeatedly to free up the hinges; they will eventually move relatively easily. Take care not to separate the control surfaces!
Fig. 36
21.Installing the aileron servos
Set the servos to neutral from the transmitter. Fit the output arms on the servos so that the arms are at 90° to the servo case - 1 x left, 1 x right.
Check that the servos fit snugly in the recesses in the wings 6. You may need to make minor adjustments to suit the servo type you are using. Apply a drop of hot-melt glue to the slots in the wing for the servo mountings lugs, and press the servos into the recess immediately. Apply another drop of glue if necessary.
Fig. 37
22. Deploying the aileron servo leads
Deploy the servo leads along the wing towards the centre section. The lead must fit in the front edge of the spar channel and run perfectly straight, standing “on edge”. The leads should project by about 120 mm at the wing root, so that you can comfortably connect the plugs to the receiver when the model is assembled. You may need to extend the standard servo leads. Secure the leads at the centre of the wings with a drop of hot-melt glue.
23. Attaching the aileron horns
Fit the pushrod connectors 25 in the outermost hole of the aileron horns 24. Secure the connectors using the washers 26 and nuts 27. Caution: make a handed pair: 1 x left, 1 x right. Tighten the nuts gently until the connectors swivel
smoothly, but without slop, then apply a tiny drop of cyano to the outside of the nuts on the point of a pin. Fit the socket-head grubscrews 28 in the pushrod connectors 25 using the allen key 29; do not tighten them at this point. Apply activator to the recesses in the ailerons and glue the horns 24 in them with the row of holes facing the hinge line.
Fig. 38
24. Installing the aileron pushrods
Connect the pre-formed end of the steel pushrods 30 to the innermost hole of the servo output arm, and fit the plain end through the pushrod connector 25 on the aileron horn. Set the aileron and servo to neutral (centre), and tighten the grubscrew 28 to secure the pushrod.
Fig. 39
25.Attach the wing to the fuselage using the screw 32.
Fig. 40
26.Installing the radio control system components The next step is to install the remaining radio components and the flight battery in the cabin area. Keep one eye on the recommended Centre of Gravity position when positioning these items; see Fig. 43.
You can correct the CG position by adjusting the location of the flight battery.
Pieces of Velcro tape 20 + 21 are supplied in the kit for securing these components. Please note that the adhesive on the tape is not very strong, and we recommend that you stick the tape in the fuselage with cyano for additional security.
Fit the receiver behind the wing screw, standing upright. Run the aerial wire out of the fuselage and tape it in place. The speed controller should be positioned immediately aft of the motor.
The motor supplied in the kit features internal suppressors, and these are adequate if you are using a MULTIcont X-16 speed controller, # 7 2271.
If you prefer to use a different controller, it is in your own interests to fit additional suppression measures to the electric motor. A suitable suppressor set is available under
#8 5020. Solder one 47 nF capacitor between one motor terminal and the motor can, and a second one between the other terminal and the can. The third 47 nF capacitor should be soldered across the terminals to form a bridge.
Installing the propeller
The next step is the initial test-run of the motor, but first the propeller must be fitted. The procedure for this varies according to the power system you have installed. However, please be sure it is firmly located in every case. In the standard version the spinner and propeller should be secured with a drop of adhesive and glued to the motor shaft. Use 5-minute epoxy with a Guenter propeller, and cyano with an MPX prop.
Once the wiring is complete, you are ready to carry out the first test-run.
