Flight Controls Flashcards
The stabilizer and rudder can also be
mechanically-controlled
regardless of the pilot’s input, the computers will prevent excessive maneuvers and exceedance of the safe envelope in pitch and roll axis. However, as on conventional aircraft, the _______ has no such protection
rudder
Stabilizer = Electrical for ________or ______ control ________ for manual trim control
normal / alternate / Mechanical
Rudder = _______, however control for yaw damping, turn coordination and trim is _________.
Mechanical / electrical
_______flight control computers process pilot and autopilot inputs according to normal, alternate, or direct flight control laws
Seven / 2 ELACs (Elevator Aileron Computer) For : Normal elevator and stabilizer control. Aileron control. 3 SECs (Spoilers Elevator Computer) For : Spoilers control. Standby elevator and stabilizer control. 2 FACs (Flight Augmentation Computer) For : Electrical rudder control.
Two elevators and the Trimmable Horizontal Stabilizer (THS) control the aircraft in pitch. The maximum elevator deflection is ____ ° nose up, and _____° nose down. The maximum THS deflection is ____° nose up, and _____° nose down.
30 / 17 / 13.5 / 4
One aileron and four spoilers on each wing control the aircraft about the roll axis. The maximum deflection of the ailerons is ___ °. The ailerons extend ____ ° down when the flaps are extended (aileron droop). The maximum deflection of the spoilers is ____°.
25 / 5 / 35
Speedbrake extension is inhibited, if:
‐ SEC 1 and SEC 3 both have faults, or ‐ An elevator (L or R) has a fault, or ‐ Angle-of-attack protection is active, or ‐ Flaps are in configuration FULL, Thrust levers above MCT position, or ‐ Alpha Floor activation.
The maximum speedbrake deflection in manual flight is:
40 ° for spoilers 3 and 4 20 ° for spoiler 2.
The maximum speedbrake deflection with the autopilot engaged is:
25 ° for spoilers 3 and 4 12.5 ° for spoiler 2.
ground spoilers retract:
• After landing, • After a rejected takeoff, when the ground spoilers are disarmed. • During a touch and go, when at least one thrust lever is advanced above 20 °
SHARP (Short Airfield Package) is a set of aircraft modifications allowing operations on short runway:
• An improved leading edge root fillet • A Vortex Generators on trailing edge panels
The normal flight control laws provides:
‐ Aircraft control on the 3 axis ‐ Flight envelope protection ‐ Alleviation of maneuver loads.
Protections are intended to:
• Provide maximum authority to the PF to consistently achieve the best possible aircraft performance in extreme conditions • Reduce the risks of overcontrolling, or overstressing the aircraft • Provide PF with an instinctive and immediate procedure to ensure that the PF achieves the best possible result
Flight Controls - normal law- pitch- Ground mode is a direct relationship between:
sidestick deflection and elevator deflection, without auto trim.
When the aircraft reaches ___ kt during the takeoff roll, the system reduces the maximum up elevator deflection from ___ ° to ____ °
75 / 30 / 20
The Rotation Mode depends on:
• The pitch rate • The tail clearance • The sidestick position
The objective of the Rotation Mode is
to provide a homogeneous rotation for all possible weight, CG and configurations, while minimizing the risk of a tail strike.
The Rotation Mode is active from
70 kt during takeoff roll until 10 s after lift-off
Flight control surfaces are all : ‐ Electrically-controlled, and ‐ Hydraulically-actuated. The stabilizer and rudder can also be
mechanically-controlled
computers will prevent excessive maneuvers and exceedance of the safe envelope. No protection for
Rudder
The maximum elevator deflection is ___ ° nose up, and ____ ° nose down
30 / 17
The maximum THS deflection is ____ ° nose up, and ___ ° nose down.
13.5 / 4
Two electrically-controlled hydraulic servojacks drive each elevator. Each servojack has three control modes :
Active : The jack position is electrically-controlled. • Damping : The jack follows surface movement. • Centering : The jack is hydraulically retained in the neutral position
One aileron and four spoilers on each wing control the aircraft about the roll axis. The maximum deflection of the ailerons is ____°. The ailerons extend ___ ° down when the flaps are extended (aileron droop).
25 / 10
A321=The maximum deflection of the spoilers is: ‐ ___ ° for spoilers 2, 4, and 5 ‐ ___º for spoilers 3.
35 / 7
Speedbrake extension is inhibited, if one of the following occurs:
‐ SEC1 and SEC3 both are faulty, or ‐ An elevator (L or R) is faulty, or ‐ Angle-of-attack protection is active, or ‐ Flaps are in configuration FULL, or -Thrust levers are above MCT position, or ‐ Alpha Floor is activated.
The maximum speedbrake deflection in manual flight is:
• 40 ° for spoilers 3 and 4 • 20 ° for spoiler 2.
The maximum speedbrake deflection with the autopilot engaged is:
• 25 ° for spoilers 3 and 4 • 12.5 ° for spoiler 2.
The ground spoilers retract:
During a touch and go, when at least one thrust lever is advanced above 20 °
The normal flight control laws provides:
‐ Aircraft control on the 3 axis ‐ Flight envelope protection ‐ Alleviation of maneuver loads.
Automatic pitch trim freezes in the following situations:
‐ The flight crew enters a manual trim order ‐ The radio height is below 50 ft (100 ft with autopilot engaged) ‐ The load factor goes below 0.5 g ‐ The aircraft is in high-speed or high-Mach protection.
The normal law protects the aircraft throughout the flight envelope, as follows :
‐ load factor limitation ‐ pitch attitude protection ‐ high-angle-of-attack (AOA) protection ‐ high-speed protection.
The flight director bars disappear from the PFD when the pitch attitude exceeds ___ ° up or ____ ° down. They return to the display when the pitch angle returns to the region between 22 ° up and 10 ° down.
25 / 13
When the aircraft is : ‐ In normal cruise range (around M .77), ‐ In straight flight, ‐ With the autopilot engaged, ‐ With symmetrical engine thrust, and ‐ With fuel in the wing tanks distributed symmetrically, the rudder trim should stay between
1 ° right and 2.3 ° left.
