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clevis attachment holes are directly over the hinge
line. Also make sure the control horn is parallel with
the bottom of the rudder. See photo # 40 below.
Photo # 40
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2) When satisfied with the alignment, use a
5/64” drill bit, and the control horn as a guide, and
drill the two mounting holes through the rudder.
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3) Mount the control horn to the rudder by in-
serting two 2mm x 16mm machine screws through
the control horn mounting base, through the rudder
and into the backplate. Tighten the screws, but do
not overtighten them. Be careful not to crush the
wood.
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4) Using a modeling knife, remove the cover-
ing from over the rudder pushrod exit hole in the top
of the fuselage. The hole is located on the top of the
fuselage, to the left of the dorsal fin. It is 1-1/2” in
front of the leading edge of the stabilizer and 5/16” in
from the fuselage side.
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5) Using a modeling knife, carefully cut off the
excess nylon pushrod housing 1/8” in front of the balsa
support block.
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6) Locate a plastic servo arm that came with
your servo. Using wire cutters, remove all but two
of the arms. See figure # 9 below.
INSTALLING THE PUSHROD
Photo # 41
Figure # 9
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7) Install one adjustable servo connector
through the third hole out from the center of one
side of the arm. You will have to enlarge the hole in
the servo arm using a 5/64” drill bit so the servo
connector will fit. When you thread on the nut, don't
tighten it completely. You don't want the connector
loose, but you do want it to be able to rotate without
binding too much.
After installing the adjustable servo connector
apply a small drop of Kwik Bond Thin C/A to
the nut. This will prevent the connector from loosen-
ing during flight.
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8) Using a 5/64” drill bit, enlarge the second hole
out from the center of the opposite side of the servo
arm. Insert the L-bend in the 2mm x 530mm pushrod
wire down through the hole. Place a nylon snap keeper
over the wire to hold it securely to the servo arm. See
figure # 10 below.
Figure # 10
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9) Plug the rudder servo lead into your receiver
and turn on the radio system. Center the rudder trim
lever on your transmitter.
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10) Slide the threaded end of the 2mm x 530mm
pushrod wire into the nylon pushrod housing, from
inside the servo compartment, until the threaded por-
tion exits the top of the fuselage.
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11) Slide the adjustable servo connector over the
end of the steering pushrod. Attach the servo arm to
the servo. The servo arm should be centered on the
servo. Install the servo arm retaining screw. See
photo # 41 below.
