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steP 1: iNstaLLiNG tHe eLevator servo
q
Install the elevator servo into the rear servo mounting hole in the plywood
servo tray, making sure to drill 1/16" (1.6mm) diameter pilot holes for the
mounting screws.
IMPORTANT
When installed, the servo output shaft must be toward
the
front
of the fuselage.
q
Install the rubber grommets and brass collets onto your elevator servo, making sure to install the collets with the flanges toward the
bottom
of the servo.
steP 2: iNstaLLiNG tHe eLevator CoNtroL HorNs
q
Position and mark the mounting hole locations for the control horn on the
bottom of the elevator. When aligned properly, the centerline of the control
horn should be centered between the fuselage sides 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.
q
Drill 5/64" (2mm) diameter pilot holes through the elevator for the control
horn mounting screws, then apply a couple of drops of thin C/A into the pilot
holes and allow the C/A to fully cure.
+
The C/A will harden the surrounding wood, making the mounting area
stronger.
q
Install one control horn onto the top of the elevator and one control horn
onto the bottom of the elevator, using four M2 x 16mm machine screws and
four M2 hex nuts.
q
Cut the mounting screws off flush with the hex nuts, then apply a drop of
thin C/A onto the hex nuts to prevent them from loosening during flight.
q
Carefully cut away the lower-most clevis attachment hole in
only one
control horn.
IMPORTANT
This control horn will be mounted onto the bottom of
the elevator. You must cut away the lower-most clevis attachment
hole so that the control horn won't hit the fuselage when the elevator
is deflected down.
IMPORTANT
Remember, you must use a low-profile elevator servo. A standard servo is too tall and will hit the bottom of
the fuselage.
IMPORTANT
Remember to install the modified control horn onto the
bottom
of the elevator.