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Building instructions
6. Installing the elevator and rudder linkages
Use a servo tester or your radio control system to set the elevator and
rudder servos to centre (neutral), then fit the large double-ended output
levers (supplied in the kit) on the servos before snipping off the unwanted
end. Drill out the hole in the output arm to 1 mm Ø. For the elevator we
suggest using the second hole from the inside, and for the rudder the
innermost hole. Glue six pushrod guides
the fuselage. Fig. 15
The two pushrods are assembled as shown in the illustration: glue an
M2 x 14 mm threaded coupler
㊴
and screw a ball-link
on the coupler, holding the coupler in pliers to
prevent it turning. Fig. 16
Thread each pushrod through the pushrod guides from the front, and
attach the clevis to the servo output arm by pressing a clevis pin
through with a pair of pliers.
Complete the linkages as described for the ailerons, but please note that
㊳
an adapter tube
has to be fitted in the clevis on the other end of the
pushrod in order to obtain a close fit between the clevis and the CFRP
pushrod. Ensure that all the glued joints involving the control linkages are
sound. Fig. 17
7. Gluing the wing in place
The prepared wing can now be glued to the fuselage. Set the wing straight
and 'square', and glue two struts on each side as shown. These consist
⓳
, which have to be cut to the correct length. Fig. 18
of the CFRP rods
8. Installing the RC components
Fix the motor (ROXXY C27-13-1800kV # 1-00018) to the front face
of the firewall; the screws are included in the hardware pack supplied
with the motor. Attach the speed controller (ROXXY BL Control 715 BEC
# 1-01050) to the lower fuselage section using hook-and-loop tape. The
receiver and flight battery can also be fixed to the fuselage using small
pieces of hook-and-loop tape. When attaching the tape to the battery we
recommend the application of a little UHU
it to air-dry for about ten minutes. Fig. 19
9. Centre of Gravity, control surface travels
The model's Centre of Gravity should be located at the 55 mm point,
measured from the wing leading edge close to the fuselage. The control
surface travels are set to the pilot's individual preference, but we
recommend about 80% EXPO on elevator, 60% EXPO on aileron and
rudder. Since the ailerons are operated by separate servos, they can also
be lowered together to act as landing flaps. A programming template for
the Cockpit SX radio control system can be found on our Internet site.
㉞
in the holes on each side of
㊹
to one end of the CFRP rod
POR to the surface, allowing
®
⓭
,
㊵
EN
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