30
❑
Install the elevator servo, making sure to drill 1/16" diameter pilot
holes for the mounting screws.
✦
✦
✦
✦
✦
IMPORTANT
✦
✦
✦
✦
✦
The servo output shaft should be toward the front
of the fuselage, as shown.
STEP 2: INSTALLING THE CONTROL HORN
❑
Position the nylon control horn onto one left side of the elevator.
When aligned properly, the centerline of the control horn should be
1-3/16" out from the fuselage side (at the hinge line) and the clevis
attachment holes should be lined up over the hinge line. The base of
the control horn should be parallel to the hinge line, too, so that the
control horn will line up with the pushrod wire.
❑
When satisfied with the alignment, mark and drill 5/64" diameter
pilot holes through the elevator for the control horn mounting screws.
Before installing the control horn in the next procedure, drip several drops of thin C/A into the pilot holes and allow
the C/A to fully cure. The C/A will harden the surrounding balsa, making the mounting area stronger.
❑
Install the control horn and backplate, using two M2 x 12mm machine screws, being careful not to overtighten them.
PRO TIP
STEP 3: INSTALLING THE PUSHROD ASSEMBLY
Continued On Next Page
☛
☛
☛
☛
☛
❑
Connect your radio system and plug the elevator servo into the
receiver. Center the servo by double-checking that the elevator trim
lever on your transmitter is centered, then use a couple of pieces of
masking tape, taped between the elevator and the stabilizer, to hold the
elevator centered.
❑
Install the servo horn onto the servo, making sure that the servo
horn is centered and
pointing down
toward the bottom of the fuselage.
❑
Install the servo horn retaining screw to secure the servo horn to
the servo.
❑
Using a modeling knife, cut away all but one arm from a "4-point"
servo horn.
❑
Install the Z-Bend in the pushrod wire into the hole in the servo arm
that is 9/16" out from the center of the servo arm.
