曝光台 注意防骗
网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
autothrust maintains idle thrust (or the pilot maintains it manually).
The speed target may either be selected or managed.
The OPEN DES disregards all altitude constraints.
Typical FMA in OPEN DES
ALTITUDE ACQUIRE MODE (ALT*, ALT CSTR*)
ALT* mode guides the aircraft to
ALT CSTR* guides the aircraft
Management.
acquire the FCU-selected altitude.
to acquire an altitude constraint,
Once the aircraft has reached the altitude, the altitude mode (ALT
engages.
ENGAGEMENT CONDITIONS
provided by Flight
or ALT CSTR green)
The mode engages when the aircraft reaches the altitude capture zone, defined by the
aircraft vertical speed (among other parameters).
SELECTED FCU ALTITUDE
OR
ALTITUDE CONSTRAINT
ALT
ARMED
ALT *
ENGAGED
ALT
ENGAGED
Note ~ ALT* and ALT CSTR* cannot be engaged below 400 feet, if either the takeoff or the
go-around mode is engaged.
CCM ALL
┏━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━┳━━━━━━━━━━━┓
┃ ┃ ┃1.22.30 P 34 ┃
┃ ┃ ┣━━━━━┳━━━━━┫
┃I ~-~ A318 ┃l AFLIGHTIGUIDANCE ┃SEQ 105 1 ┃I REV 34 ┃
┃ aw aw ,, ~e~ A319 ┃ ┃ ┃ ┃
┃ Lli,~ A320 ┃ ┃ ┃ ┃
┃ A~7-~'M" A321 ┃ ┃ ┃ ┃
┃ FLIGHT CREW OPERATING MANUAL ┃ ┃ ┃ ┃
┗━━━━━━━━━━━━━━━━┻━━━━━━━━━━━━━━┻━━━━━┻━━━━━┛
DISENGAGEMENT CONDITIONS
Engagement of V/S mode on current vertical speed by changing the FCU altitude
selector knob by more than 250 feet.
Engagement of another vertical mode provided the FCU altitude has been changed by
more than 250 feet.
GUIDANCE
Typical FMA in ALT *
The ALT* and ALT CSTR* modes have internal V/S guidance that is a direct function of the
difference between present altitude and the altitude target.
The system switches automatically to ALT (altitude hold) when the altitude deviation
becomes less than 20 feet.
ALT* and ALT CSTR* modes have internal protections that decreases the vertical speed
when VLS or VMAX is reached (VLS or VMAX becomes the priority target).
R Note
R
R
R
R
R
If the baro setting is changed during ALT*, this may lead to an FCU target
overshoot due to the change of the current value of the altitude. However ALT*
mode will allow the FCU altitude to be regained.
For aircraft equipped with QFE option, a switching from STD to QFE (or vice
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：
AIRBUS A320 Flight Crew Operating Manual2(45)
