Screw the plastic horn lugs onto the M3 horn pillars, and set a lever length of about
23 mm for the rudder, and around 27 mm for both elevators. Slip the rudder and
elevator pushrods into the guide sleeves from the tail end of the fuselage; you will
need to melt the film over the pushrod openings with a hot soldering iron beforehand.
Connect the clevises to the plastic horn lugs. At the front end link the two elevator
pushrods using the DUO pushrod connector supplied in the kit (as shown in the
photo). Connect the pushrods to the servo output arms using swivel pushrod
connectors; you will need to drill out the linkage holes to 2 mm Ø beforehand.
When installing the swivel pushrod connectors ensure that they rotate smoothly,
without noticeable lost motion.
It is imperative to secure the grubscrews which clamp the pushrods in the swivel
connectors with a drop of UHU schraubensicher to prevent them working loose.
The ON / OFF switch can be mounted in the fuselage side, as shown in the photo.
The purpose of the smaller ON / OFF switch is to turn the two flashing diodes in the
wingtips on and off: the wires to the LEDs must be soldered in such a way that they
can be connected to the switch and the battery box supplied in the kit.
Pack the receiver battery and the battery box for the navigation light system in foam,
and stow them under the plate which supports the cabin seats. Glue the four seats to
the plate, arranged as shown in the photo. When the glue has set hard, install the
seat plate in the fuselage using four pan-head self-tapping screws.
File out semi-circular openings in both sides of the seat plate to clear the extension
leads (permanently connected to the receiver), so that the leads can be run up to the
wing saddle.
Assembling the CESSNA
®
172 S
To make it easier to connect the aileron and landing flap servos to the receiver, we
recommend that you permanently connect 180 mm long extension leads to the
appropriate receiver sockets (2, 5, 6 and 7).
Connect the aileron and flap servos to the extension leads, then place the wing on
the fuselage and engage the two plywood lugs in the slots in the front fuselage
former. The wing can now be fixed to the fuselage by fitting the two plastic screws at
the trailing edge. Don’t over-tighten the screws: turn them just to the point where the
wings make firm contact with the fuselage.
Attach the two wing struts to the fuselage and the wings using the plastic screws
supplied in the kit.
Balancing the CESSNA
®
172 S
Support the assembled model (fueltank empty) under both wing roots at a point
about 80 mm aft of the wing root leading edge. If the CG position is correct, the
model will hang level, with the nose inclined slightly down. If necessary, re-position
the receiver battery, or glue lead ballast to the nose or tail to obtain the correct
balance.
All the control surfaces must be exactly at centre when the transmitter sticks and
trims are in the neutral position; check this carefully before the first flight.
