Van's Aircraft RV 12iS, Maintenance Manual

Page: 86 / 222

Rev: 2 Date: 11/15/18
6-2
OVERVIEW
The flight control system enables the pilot to operate the control surfaces.
Forward or aft movements of the control stick control the pitch. The pitch control linkage
is a pair of cables, each routed around a pulley and attached to control horns on the
stabilator. The pitch-trim is controlled by a linear actuator influencing the length of the
anti-servo tab pushrod assembly, controlled by the pilot using a stick mounted switch or
optionally, by the autopilot. Side-to-side movements of the control stick controls roll via
push rods, a bell crank, and torque tubes. Rudder pedals control yaw via cables to the
rudder. The flaps function of the flaperons is activated by a linear actuator controlled by
a switch on the center console.
Refer to the KAI to identify the individual parts and part #’s of the control system.
•
NOTE: This maintenance manual is intended to be used in conjunction with the
RV-12iS Kit Assembly Instructions (KAI) when completing maintenance or repair
processes.
COMPONENTS
Quantity Part or Assembly Name Part Number or Reference
1 Flap Handle Pushrod Refer to KAI
1 Flaperon Mixer Bellcrank F-1263A & F-1263B
2 Control stick pushrod Refer to KAI
2 Control stick WD-1212
2 Flaperon pushrod Refer to KAI
1 Left flaperon torque arm Refer to KAI
1 Right flaperon torque arm Refer to KAI
2 Stabilator cable F-01247C & E
2 Rudder cable F-01239-1
2 Rudder pedal WD-01206-1
2 Stab cable pulley MS24566-4B
4 Locking clips MS21256-1
1 Pitch / Trim servo See Chapter 8
Optional Components
1 Autopilot Module IF DYNON AP SV-AP-PANEL and SV-
KNOB-PANEL or Garmin GMC 307
1 Autopilot (Pitch) Servo IF DYNON AP SV32 or Garmin GSA 28
1 Autopilot (Roll) Servo IF DYNON AP SV32 or Garmin GSA 28