6
The ailerons require a minimum of 80 oz/in of servo torque. In
the prototype Extras, we used JR8101 and JR8411 servos.
JR’s 8411s offer a crisp response — the ultimate servo choice.
JR8101 Ultra Precision Wide Bearing
Torque: 90.4 oz/in
Speed: .23 sec/60°
Weight: 1.5 oz
Size: .73" x 1.52" x 1.32"
Motor: Coreless
Ball Bearing: Dual
JR8411 Digital Ultra Torque
Torque: 155 oz/in
@
4.8V
Speed: .18 sec/60°
Weight: 2.03 oz
Size: .73" x 1.52" x 1.32"
Motor: Coreless
Ball Bearing: Dual
Step 1.
Install the servo hardware (grommets and eyelets)
included with the servo.
Step 2.
Plug a 12" servo extension onto each servo. Tie a knot
at the connector as shown, then wrap with electrical tape to
prevent the servo connectors from pulling apart.
Step 3.
Insert the servo into the aileron cutout in the bottom of
the wing as shown. Be sure the output shaft is oriented closest to
the trailing edge of the wing. Allow the servo lead to exit the root
of the wing. Refer to the photo in Step 4.
Step 4.
Using the screws included with the servo, fasten the
servo in place. You may find it helpful to drill a
1
/
16
" pilot hole
before installing the screws.
Step 5.
Remove the stock arms and replace with heavy-duty
1" arms (HAN3574 JR or HAN3575) to give the needed control
throws and to handle the increased loads of the large surfaces.
The arms need to face outward toward the wing tips as shown in
the photo. Be sure to use a drop of Blue Locktite to secure the
servo arm screws if using metal-geared servos.
Section 1: Installing the Aileron Servos
• Wings w/ailerons attached (taped in place)
Not Included
• (2) servos w/mounting hardware
(80 oz/in minimum torque)
• (2) 12" servo extensions
Included in Optional Hangar 9 Hardware Package
(HAN1220 JR or HAN1221 Futaba)
• (2) 1" Servo Arms (HAN3574 JR or HAN3575 Futaba)
• Phillips screwdriver
• Drill with
1
/
16
" drill bit
• Electrical tape
• Blue Locktite
®
Parts Needed
Tools and Adhesives Needed
Wing Tip
Trailing Edge