advanced scale models P-61 Black Widow Assembly Instructions Manual page 9

STEP 14: INSTALLING THE ELEVATOR CONTROL LINKAGE ASSEMBLY
iMpoRTANT Make sure that you center both the elevator servo and the servo arm before installing your servo.
STEP 15: INSTALLING THE STABILIzER AND THE CENTER WING PANEL
iMpoRTANT Below we show the layout of the servo extensions. We've done it in a way to make it more convenient when
assembling the airplane. All the servo leads feed into the center fuselage pod, where the receiver will be located. The servo leads
then run through the center wing panel and into each of the fuselage booms to plug into the throttle, rudder and elevator servos.
Other servo leads run through the center wing panel and out to the tips to plug into the aileron and flap servos. This allows easy
plug-in installation of all the servo leads when assembling the fuselage booms, center fuselage pod and the outer wing panels. All
the servo extension leads stay in the center wing panel.
❑ Mount your elevator servo to the servo mounting hatch cover, using
the two plywood blocks provided.
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The servo arm should be centered in the slot in the hatch cover.
❑ Attach a 36" (914mm) long servo extension to the servo, then run it
through the left half of the stabilizer.
iMpoRTANT Cut a notch in the bottom of the stabilizer where the
servo extension exits, just large enough to fit the servo extension. This
notch will prevent the servo extension from being pinched when the
stabilizer is mounted to the fuselage boom.
❑ Install the servo hatch cover, using the four small wood screws
provided.
❑ Install the control linkage, using the threaded pushrod wire, small
control horn, clevis and two wood screws provided.
❑ Glue the two plywood wing-screw doublers to the top of the center
wing panel, making sure to line up the predrilled hole in each doubler with
the predrilled holes in the center wing panel.
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The straight edge of each doubler should be toward the trailing edge
of the wing.
❑ Three holes are precut in the bottom of the center wing panel to run
your servo extension leads through. The hole in the top of the center
wing panel is for the optional retract air lines. Run the servo extensions
through the center wing panel as listed below:
Elevator: One 24" extension from outer hole (left side) to center hole
Rudders: One Y-Harness and two 12" extensions from center hole to outer holes
Throttles: One Y-Harness and two 12" extensions from center hole to outer holes
Ailerons: One Y-Harness and two 12" extensions from center holes to tip
Flaps: One Y-Harness and two 12" extensions from center holes to tip
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