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not stick well to the foam surface. Apply a
thin coating of 5-minute epoxy to the hook
tape and glue it inside the fuselage.
- Pico „Ein-Stein" receiver block:
Glue the Ein-Stein quick-release mount to the bottom
of the fuselage with the retaining lug at the rear. The
plate must rest against the rear edge of the fuselage
to ensure that there is sufficient space for the plugs
in the socket bank of the „Ein-Stein". You will need
to remove a little foam to clear the retaining lug.
Fix the speed controller for the motors to the fuselage
adjacent to the flight battery in the canopy area of
the fuselage using Velcro tape and connect its plug
to channel 4 on the „Ein-Stein". Connect an
expansion adaptor 8 5060 to socket 5, then install
the „Ein-Stein" with the socket bank facing forward
and secure it with the single retaining screw (fig. 14).
Slip the pre-formed steel pushrods 82 and 83 into
the bowden cable outers from the front, fitting them
through the hole in the pushrod connectors at the
tail end as you do so.
Looking from above and from the tail of the model,
connect the rudder pushrod to the third hole in the
inner shank of the servo output lever on the right-
hand side of the case. Connect the elevator pushrod
to the left-hand servo output arm, using the second
hole on the inside shank. You will need to unscrew
the servo output arms in order to connect the
pushrods. Slip the Z-bend of the pushrod through
the hole and re-fit the output arms, taking care to set
them at the correct „neutral" position. At the tail end
set the rudder and elevator to centre and tighten
the socket-head cap screws in the pushrod
connectors using the allen key 48.
Alternative arrangement: separate elevator and
rudder servos
When installing the servos ensure that the output
arms are at the same height as the pushrods.
1. MS12 and MS-X5 servos:
Trim the servo support rails 69 to fit in the fuselage
together with the servos. Attach the servos flush with
the outside ends of the rails 69 and glue the rails in
the fuselage (fig.15a)
2. MS-X4 servos:
Glue together the servo support rails 69 and the
support strips 70 and trim them to fit in the fuselage
together with the servos. Attach the servos flush with
the ends of the plywood strips 70 and glue the
supports in the fuselage (fig.15b).
Install the receiver (Micro 5/7) in front of the servos
and the speed controller (PiCO-Control 400 DUO),
using Velcro tape to fix them to the fuselage sides.
Plug in the cables.
17. Final assembly
Apply two strips of Velcro „hook" tape 61 to the inside
of the battery duct, and glue the „loop" tape 62 to
the underside of the flight battery. We recommend
that you stick a loop of tape round the battery to
facilitate its removal from the fuselage. Place the
battery in the battery duct and temporarily connect
the power system and the aileron servos.
Do not connect the motors to the power
system until your transmitter is switched on
and you are certain that the transmitter
control which governs the motors is at the
„OFF" position.
Screw the wing to the fuselage. Switch on the
transmitter and connect the flight battery to the speed
controller. It is essential that your controller features
what is known as a BEC system (Battery Eliminator
Circuit - integral receiver power supply).
Remove all loose lightweight objects from the area
behind the model, and hold the airframe securely.
Now switch on the motors briefly and check the
direction of rotation of the propellers.
Take care: even with small motors and
propellers the spinning blades always
represent an injury risk!
18. Control surface travels
If the model is to have a well-balanced control
response the control surface travels must be set
correctly. The rudder should move about 15mm to
right and left (measured at the trailing edge of the
rudder) and the elevator should rise (stick pulled
back) by about 12mm and fall (stick pushed forward)
by about 10mm.The ailerons should have about
20mm up-movement and 8mm down-movement.
When you move the aileron stick to the right the right-
hand aileron should deflect upwards.
19. Balancing
Your „Twin Star" is stable and docile in the air, but
only when balanced at the correct position - just like
any other flying machine. Assemble the model
completely, ready to fly, and install the flight battery.
On the underside of the wing the spar is located at a
point 75mm back from the wing root leading edge.
Support the model on two fingertips at this point, and
it should balance level (fig. 16). If not, move the flight
battery forward or back to correct. The MULTIPLEX
CG balance (Order No. 69 3054) makes balancing
an easy, convenient and accurate matter. Once you
have found the correct battery position, cut a piece
of scrap foam to act as a packing piece in the battery
box, so that the battery always stays in the same
place.If you intend rolling the model or trying inverted
flight we recommend that you secure the flight pack
so that it cannot fall out. This is done by pushing
another piece of scrap foam between the battery and
the front wing retaining plate, but take care not to
obstruct the circulation of cooling air too much.
20. And now a little decoration:
The kit is supplied with a multi-colour decor sheet 2
to decorate the model. Cut out the individual name
placards and emblems and apply them to the model.
You can follow our suggested scheme or adopt your
own. The black / white sticker 3 is applied over the
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