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Printed page 30. PDF page 32.
right elevator surfaces respectively. Yaw Control One rudder surface controls yaw. The yaw damping and turn coordination functions are automatic. The ELACs compute yaw orders for coordinating turns and damping yaw oscillations, and transmit them to the FACs. The pilotsOpen official document at PDF page 32Aircraft Accident Investigation Report: PT. Indonesia Air Asia, Airbus A320-216, PK-AXC, 28 December 2014
Printed page 37. PDF page 39.
flight augmentation computers (FACs) that perform four main functions: � Yaw function - Yaw damping and turn coordination - Rudder trim - Rudder travel limitation � Flight envelope function - PFD speed scale management Minimum/maximum speed computation Manoeuvring speed coOpen official document at PDF page 39Aircraft Accident Investigation Report: PT. Indonesia Air Asia, Airbus A320-216, PK-AXC, 28 December 2014
Printed page 29. PDF page 31.
down. Roll axis is controlled by ailerons and spoilers which are electrically operated. Yaw axis is controlled by the rudder which is mechanically operated, however control for yaw damping, turn coordination and trim is electrical. The stabilizer and rudder canOpen official document at PDF page 31Aircraft Accident Investigation Report: PT. Indonesia Air Asia, Airbus A320-216, PK-AXC, 28 December 2014
Printed page 35. PDF page 37.
and no aileron trim is required. However, lateral law is also a mixture of roll and yaw demand with: - Automatic turn coordination - Automatic yaw damping - Initial yaw damper response to a major aircraft asymmetry. In addition, ifOpen official document at PDF page 37Aircraft Accident Investigation Report: PT. Indonesia Air Asia, Airbus A320-216, PK-AXC, 28 December 2014