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installation note supplied with the TA servo LOCK set). Be sure to roughen the
surface of the servo cover to ensure a good bond.
Tip: Protect the servos with heat shrink sleeve. This makes for easy removal
and replacement of the servo, but care should be taken so as not to overheat
the servos while applying the sleeve.
Installation of the wing control horns.
Note: ARF customers will need to remove a little of the covering material while
those building the ARC version may prefer to wait until after the wings have been
covered before bonding the control horns in place.
Ailerons: Mark out the position of the aileron control horns on the lower surface of the
aileron. The horn should be positioned directly opposite the scoop in the servo cover
and about 3 mm from the aileron leading edge.
Drill a series of 2mm diameter holes and cut away the excess to form a neat slot to
accommodate the supplied GRP control horns. Take care not to cut through to the
upper surface of the aileron and undercut a little of the material inside the slot to
allow for additional adhesive.
Locate the aileron control horn such that the eye is at 90° to the hinge line and about
13mm above the lower surface of the aileron.
Flaps: Similarly locate the slots to accommodate the supplied GRP control horns
about 3mm behind the leading edge of the flap such that the eye is located about
10mm behind the flap leading edge and about 12mm above the lower surface of the
flap.
Once satisfied with the position, bond the GRP control horns into place using
thickened epoxy and allow to cure.
Wing servos wiring.
Prepare two cable harnesses to connect the wing mounted aileron and flap servos to
the receiver system. The connectors may be either fixed into the wing and fuselage
wing fairing roots, or left on flying leads. However you choose to proceed, be sure to
use good quality twisted servo leads, with a wire diameter of no less than 0.25 mm ²
and polarised connectors, preferably with Gold contacts capable of delivering
adequate current for the 4 wing servos under load.
Note: Quality cable sets, including connectors and separation filters are available
via the specialist model trade; choose high quality components for optimum
reliability. In the case where flying leads are used, take care always to handle the
leads only by the connectors. Don't pull on the leads!
ARF customers should now move to installation of the radio control equipment while
those building the ARC version should now begin the finishing stage.
Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck *
12
Fig 10 & 11. Wing Servo & Control Horns
www.graupner.de
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