Multiplex TWIN STAR II Notice De Construction page 26

Fig. 17
12. Completing the elevator and rudder linkages
Slip the tail end of the steel inner pushrods 41 and 42 through the
pushrod connectors 25. Set the control surfaces to neutral (centre)
and tighten the socket-head grubscrews 28 to secure the
pushrods. Check that the control surfaces work in the appropriate
"sense" (correct direction relative to stick movement).
Figs. 18 + 19
Completing the wings
13. Preparing the wing panels
Cut through the ailerons on the wing panels 3 and 4 at the inboard
end to leave a gap 1 mm wide. Flex the control surfaces repeatedly
up and down in order to free up the hinge lines. Caution: do not
separate the ailerons from the wing.
The production process leaves superfluous "stub wings" attached
to the motor pods. Carefully remove these using a very sharp
knife.
Fig. 20
14. Attaching the horns to the ailerons
Fit the pushrod connectors 25 in the outermost holes of the aileron
horns 24. Secure the connectors using the washers 26 and nuts
27.
Caution: make a handed pair: one right, one left! Tighten the nuts
carefully: just to the point where the connectors revolve smoothly,
but without wobbling. When you are sure, apply a tiny drop of
cyano to the nut (best applied on the point of a pin). Fit the socket-
head grubscrews 28 in the pushrod connectors 25 using the al-
len key 29.
Apply activator to the horn recesses in the ailerons, then apply
cyano to the horns 24 and place them in the recess, with the row
of holes at the leading edge, facing the hinge pivot line.
Fig. 21
15. Installing the aileron servos
Set the aileron servos to neutral (centre) from the transmitter. Mount
the output arms on the servos at 90° to the long servo sides.
Prepare a handed pair: one left, one right.
Trial-fit the servos in the recesses in the wing panels 6 and 7. You
may need to make minor adjustments here, depending on the
type of servo you are using. Glue the servos in place by applying a
drop of hot-melt glue to the slots in the wings for the servo mounting
lugs, and immediately press the servo into the recess. Apply
another drop of glue afterwards if necessary.
Fig. 22
16. Installing the aileron pushrods
Connect the pre-formed end of the aileron pushrods 30 to the
outermost hole in the servo output arms, and slip the other end
through the pushrod connectors 25. Set the aileron and servo to
centre, and tighten the grubscrew 28 to secure the pushrod.
Fig. 23
17. Preparing the motors and motor mounts
Fix the motor bulkheads 60 to the motor brackets 61 using four
screws 63 each. Solder the power cables 53 to the motor terminals
50.
Be sure to maintain correct polarity: positive ( + ) to red,
negative ( - ) to black.
The motors supplied in the kit are fitted with internal suppressors.
This level of suppression is adequate if you are using the MULTIcont
M-32 speed controller, # 7 2279.
26
If you wish to use a different controller, we recommend that you fit
additional suppressors, just to be on the safe side. The suppressor
set, # 8 5020, is included for this purpose. Solder two 47 nF
capacitors between the motor terminals and the case, and the
third 47 nF capacitor across the motor terminals to form a bridge.
Fix the motors 50 to the motor bulkheads 60 using the screws 62.
Attach the propellers 52 to the motor shafts using 5-minute epoxy
or UHU Endfest 300 (slow-setting epoxy).
Don't use cyano for this!
Cyano makes the material brittle, and the spinner will come
loose!
Apply a little glue to the bore of the plastic spinner using the point
of a pin, and push the propeller onto the motor shaft. Push the pin
through the rear of the spinner to allow trapped air to escape.
Fig. 24
18. Installing the motors, deploying the motor and aileron servo
cables
Glue the motor assemblies, including the motor brackets 61, in
the wing-mounted motor pods using cyano. The screw fixings
make it possible to remove the motors at any time. Run the motor
power cables 53 from the motors 50 to the wing root along the
spar channel, and tack them in place using cyano.
Note: if the motors vibrate severely (resonate) in use, check the
balance of the propellers and / or stick half a piece of hook-and-
loop tape 21 between the motor 50 and the motor bracket 61.
Deploy the servo leads towards the wing joiner channels, and
extend them at that point using the 300 mm extension leads
supplied. Cut a recess in the spar covers 8 / 9 to clear this
connection; alternatively the cable joints can be soldered. Now
deploy the cables in a straight line along the front edge of the spar
channel, standing the wires upright (on edge), and glue them in
place using cyano. Note that the cables must project at the wing
root by about 100 mm, so that they reach the connector board 54
in the fuselage when the model is assembled; the wing-mounted
cables are plugged into the connector board.
Fig. 26
29. Gluing the spar covers in place
Carefully trim the spar covers 8 and 9 to fit snugly in the appropriate
recesses in the wing panels 6 and 7. If necessary, cut away a little
material to clear the connector of the servo extension lead. Don't
glue the spar covers in place until they fit absolutely flush with the
surface of the wing. Attach the covers using cyano, taking great
care to avoid adhesive running onto the surfaces which will later
make contact with the wing joiner 40. The next step is to trial-fit the
wing joiner 40, but please do not do this until you are absolutely
certain that there is no active glue inside the joiner sockets. If you
are not sure of this, spray a little activator inside, and wait for about
five minutes. If you neglect to do this, you run the risk of producing
a one-piece wing which can never be dismantled again.
Figs. 26 + 27
20. Completing the canopy
Locate the slots in the canopy 5 for the latch tongues 23, fill them
with cyano, align the latch tongues with the fixed latches and push
them in as far as they will go. If necessary, spray activator on the
joints to force the adhesive to cure.
Fig. 28
21. General notes on installing the receiving system
When positioning the flight battery it is important to keep the stated