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These laws trigger, when extreme values are reached:
? Pitch (50 ° up, 30 ° down)
? Bank (125 °)
? AOA (30 °, -10 °)
? Speed (440 kt, 60 kt)
? Mach (0.96, 0.1).
It is very unlikely that the aircraft will reach these attitudes, because fly-by-wire provides protection to ensure rapid reaction far in advance. This will minimize the effect and potential for such aerodynamic upsets.
The effectiveness of fly-by-wire architecture, and the existence of control laws, eliminate the need for upset recovery maneuvers to be trained on protected Airbus aircraft.
SIDESTICK AND TAKEOVER P/B
Applicable to: ALL
When the Pilot Flying (PF) makes an input on the sidestick, an order (an electrical signal) is sent to the fly-by-wire computer. If the Pilot Not Flying (PNF) also acts on the stick, then both signals/orders are added.
Therefore, as on any other aircraft type, PF and PNF must not act on their sidesticks at the same time. If the PNF (or Instructor) needs to take over, the PNF must press the sidestick takeover pushbutton, and announce: "I have control".
If a flight crewmember falls on a sidestick, or a mechanical failure leads to a jammed stick (there is no associate ECAM caution), the "failed" sidestick order is added to the "non failed" sidestick order.
In this case, the other not affected flight crewmember must press the sidestick takeover pushbutton for at least 40 s, in order to deactivate the "failed" sidestick.
A pilot can at any time reactivate a deactivated stick by momentarily pressing the takeover pushbutton on either stick.
In case of a "SIDE STICK FAULT" ECAM warning, due to an electrical failure, the affected sidestick order (sent to the computer) is forced to zero. This automatically deactivates the affected sidestick. This explains why there is no procedure associated with this warning.
OPERATIONAL PHILOSOPHY
AP / FD / ATHR
AUTOPILOT/FLIGHT DIRECTOR
Applicable to: ALL
OBJECTIVE
The Auto Pilot (AP) and Flight Director (FD) assist the flight crew to fly the aircraft within the normal flight envelope, in order to:
? Optimize performance in the takeoff, go-around, climb, or descent phases
? Follow ATC clearances (lateral or vertical)
? Repeatedly fly and land the aircraft with very high accuracy in CAT II and CAT III conditions.
To achieve these objectives:
? The AP takes over routine tasks. This gives the Pilot Flying (PF) the necessary time and resources to assess the overall operational situation.
? The FD provides adequate attitude or flight path orders, and enables the PF to accurately fly the aircraft manually.
MANAGED AND SELECTED MODES
The choice of mode is a strategic decision that is taken by the PF.
Managed modes require:
? Good FMS navigation accuracy (or GPS PRIMARY)
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A330/A340 机组训练手册 FCTM Flight Crew Training Manual 1(13)
