10
The final stage is to attach the tail servo cover to the fuselage. Trim it to fit if necessary, then tape it
over the opening as shown.
Drill a 4 mm Ø hole in the cover at the marked point, so that you can access the retaining screw using
an allen key. This allows you to fit and remove the V-tail without having to remove the cover.
Assembling the SOARMASTER COMPACT
Fix the V-tail unit to the fuselage using the M4 socket-head cap screw.
Ensure that the two brass balls on the elevator horns engage fully in the plastic ball-links on the tail
pushrods.
Connect the wing servo extension leads (projecting from the wing centre section) to the extension
leads at the wing saddle. Slip the leads into the fuselage, then attach the wing centre section to the
fuselage using the two M5 socket-head cap screws provided.
Important: ensure that the V-tail and wing are firmly secured to the fuselage, and cannot shift.
Plug in the two outboard wing panels using the square-section joiners, and tape the panels together.
Balancing the SOARMASTER COMPACT
Assemble the model completely, ready to fly, and support it under both wing roots at a point about 95 -
100 mm aft of the leading edge. The model should now balance level, ideally with the nose inclined
slightly down. Re-position the flight battery if necessary until this is the case. Once you have
established the correct battery position, draw a pencil-line in the fuselage to ensure that it is always
replaced correctly.
For initial test-flights the CG should be at the forward end of the stated range.
Before every flight check that all control surfaces are exactly at centre (neutral) when the transmitter
sticks and trims are also at centre.
Control surface travels
Ailerons
25 mm up
5 mm down
Elevators
10 mm up
10 mm down
Rudder
10 mm up
10 mm down
Flaps
2 mm down
1 mm up
Butterfly (Crow) setting
Ailerons
up
9 mm
Flap
down
max., approx. 75°
Elevators
down
4 mm
(max. means measured at the trailing edge of control surface)
Important:
When installing and adjusting the mechanical linkages it is vital to ensure that they all work smoothly
and are able to carry out their full travel - including trim movement - without fouling at any point, and
without being obstructed mechanically (servos stalled).
When you move the rudder stick to the right, the right elevator should move down and the left elevator
up. Pull the elevator stick back towards you, and both elevators should deflect up through the same
angle (forward stick = down). If you move the aileron stick to the right, the right-hand aileron should
rise, the left-hand aileron fall. Pull the Butterfly (Crow) stick back towards you, and the ailerons should
rise and the flaps fall. We recommend assigning the camber-changing flaps to a slider on the
transmitter; it is best to limit the flaps’ travel electronically, so that the stated deflections are obtained
at full travel of the slider.
And now all that remains is to wish you many hours of pleasure building and flying your
SOARMASTER COMPACT.
Yours - the Graupner team!
GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
We reserve the right to introduce modifications. No liability for printing errors. Ident No. 50778 05/2005
