GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
No liability for printing errors. We reserve the right to introduce modifications.
10/2006
9
Install the wheels and the wheel axles. Apply UHU schraubensicher (thread-lock fluid) to the grubscrews,
and tighten them fully to prevent the wheel axles working loose.
The wing panels can now be joined; the retract servo plate is glued in place at the same time.
Wing shells must be joined by means of an aluminium tube. Take care that the two shells are fitting
exactly. Apply the glue into the cardboard tubes, and glue the wing shells at the roots of the ribs.
When the epoxy has cured completely, mark the position of the servo screws, drill pilot-holes for them,
and install the retract servo using the screws supplied with it.
Locate the large output disc supplied with the retract servo, mount two swivel pushrod connectors on it,
and screw the disc to the servo output shaft. Note that the two swivel connectors must be installed in such
a way that the linear travel is exactly the same as that of the retract units, otherwise you will have
problems when the wheels retract and extend. This means that the holes in the output disc for the swivel
connectors must be drilled 25 mm apart and directly opposite each other, as shown in the photo.
Both retract units must be fully retracted and locked when the servo is at the position shown in the photo.
Apply thread-lock fluid to the grubscrews in the swivel connectors and tighten the screws fully to prevent
them shaking loose.
The wing retaining screws are fitted through the two holes in the wing root trailing edge, but first the area
should be reinforced by gluing the plastic sleeves in the holes.
The final stage is to apply the decals supplied in the kit. The kit box illustration shows you where they
should be located.
Assembling the P-47 THUNDERBOLT
To make it easier to connect the aileron, flap and retract servos to the receiver, we recommend that you
connect a 180 mm extension lead to each of the appropriate receiver sockets (2, 5, 6 and 7).
Connect the aileron, flap and retract servos to the extension leads, then attach the wing to the fuselage as
follows: engage the hardwood dowels in the holes in the fuselage former, then fit the two countersunk
retaining screws at the trailing edge. Tighten the screws just to the point where the wing is held securely
on the fuselage, and cannot shift.
Balancing the P-47 THUNDERBOLT
Support the assembled model (fueltank empty) under both wing roots at a point about 85 mm to 95 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, 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 before the first flight.
Control surface travels for normal flying
Ailerons
20 mm up, 15 mm down
Elevators
16 mm up, 16 mm down
Rudder
50 mm right, 50 mm left
Landing flaps
take-off: 12 mm
landing: 40 mm max.
We recommend that you set 35% exponential on all control surfaces at the transmitter.
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 both elevators must deflect up (stick forward:
elevators down).
