WATT AGE PT-19 CORNELL EP ARF, Инструкции по окончательной сборке

Страница: 20 / 32

20
❑
Thread a nylon clevis onto the pushrod wire and snap the clevis into
the outermost hole in the control horn.
☞
Hold the pushrod wire with a pair of pliers to prevent it from turning
or twisting when threading on the clevis.
❑
Use a piece of masking tape, taped between the elevator and the
stabilizer, to hold the elevator centered.
STEP 3: INSTALLING THE ELEVATOR SERVO HORN
❑
Using a modeling knife, cut away and remove all but one arm from
a "4-point" servo horn.
❑
Enlarge the hole in the servo arm that is 5/16" out from the center of
the servo arm, using a 1/16" diameter drill bit.
❑
Plug the elevator servo (left-side servo) into your receiver, then plug your ESC into the receiver and your flight battery into the
ESC . Turn on your radio system and center the servo, using the elevator trim lever on your transmitter.
❑
Attach the servo horn to the servo, making sure that it's centered
and points toward the fuselage side.
❑
With the elevator and the servo horn centered, draw a mark on the
pushrod wire where it crosses the hole that you enlarged in the
servo arm.
❑
Position a nylon control horn onto the bottom, left side of the elevator.
When aligned properly, the centerline of the control horn should be 1/2"
out from the inside edge of the elevator (at the hinge line) and the clevis
attachment holes should be lined up over the hinge line. The front of
the control horn should be angled slightly toward the fuselage side, too,
so that it lines up better with the pushrod wire.
❑
When satisfied with the alignment, mark the locations of the two
mounting holes, then drill 5/64" diameter pilot holes through the
elevator for the control horn mounting screws.
Continued On Next Page
☛ ☛ ☛ ☛ ☛
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 wood, 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