GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Änderungen vorbehalten! Keine Haftung für Druckfehler 3/2008
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Tighten the retaining screws just to the point where the wing is held securely on the
fuselage, and cannot shift.
Balancing the North American Harvard AT-6
The completely equipped model, with the flight battery installed, should balance level
at a point about 90 mm aft of the wing root leading edge, ideally with the nose
inclined slightly down. It is easiest to balance the aeroplane when it is held inverted. If
necessary, adjust the position of the flight battery, or fit nose or tail ballast, until the
model balances at the stated point. Glue any ballast in place securely. Before flying
the aircraft, set the transmitter trims to centre and ensure that all the control surfaces
are also exactly at centre (neutral).
Control surface travels for normal flying
Ailerons
14 mm up, 10 mm down
Elevator
25 mm up and down
Rudder
40 mm right and left
We recommend that you set the following Exponential values at the transmitter:
Ailerons
20%
Elevator
30%
Rudder
15%
Important:
When fitting and adjusting the various linkages you should ensure that they move
freely, without binding, are able to move to their full extent - including trim travel - and
are not obstructed mechanically at any point.
When you move the rudder stick to the right, the rudder should also deflect to the
right (left stick: left rudder). Pull the elevator stick back towards you, and the elevator
must deflect up (stick forward: elevator down). If you move the aileron stick to the
right, the right aileron should rise, the left aileron fall. When you move the throttle
stick forward, the motor should run at full power; pull the throttle stick back to its end-
point, and the motor must stop.
All that remains is to wish you many hours of pleasure flying your NORTH
AMERICAN HARVARD AT-6.
Yours - the
Graupner
team
