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┃ A~7-~'M" A321 ┃ ┃ ┃ ┃
┃ FLIGHT CREW OPERATING MANUAL ┃ ┃ ┃ ┃
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O LP rotor speed (N1)
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Actual N1 ~ the N1 needle and N1 digital indication are normally green
The needle pulses amber when the actual N1 is above the N1 MAX (see (E)).
The needle pulses red when the actual N1 is above the red line N1 (104 %).
When N1 is degraded (in case both N1 sensors fail), the last digit of the digita
display is amber dashed.
N1 Command ~ this N1
(A/-rHR), as limited by the
is on.
corresponds to the demand
position of the thrust lever. It
of the autothrust system
is displayed only if A/THR
Transient N1 ~ this blue arc shows the difference between the actual N1 and the N1
commanded by the A/THR. It is displayed only if the A/THR is on.
N1 TLA ~ this small white circle shows the N1 corresponding to the thrust lever
position.
Max N1 ~ this amber index shows the N1 the engine would produce with the thrust
lever all the way forward.
Max permissible N1 ~ this red arc, showing the prohibited or "redline" area of
operation, begins at 104 %.
N1 exceedance ~ if N1 exceeds 104 % during a
remains at the highest N1 attained. It disappears
after maintenance action through the MCDU.
flight, this red mark appears and
after a new start on the ground or
BEY : appears in amber when any one blocker door is unstowed or
m
It changes to green when all four blocker doors are fully deployed.
(If a door unlocks in flight the indication first flashes for 9 seconds,
steady).
unlocked
then remains
CCM ALL
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┃I ~-~ A318 ┃ POWER PLANT ┃1.70.90 P 7 ┃
┃ aw aw ,, ~L,~ A319 ┃ ┃ ┃
┃ ┃ ┣━━━━━┳━━━━━┫
┃ Lii,~ A320 ┃ ┃SEQ 005 I ┃I REV 33 ┃
┃ A~7-~'M" A321 ┃CONTROLS AND INDICATORS ┃ ┃ ┃
┃ FLIGHT CREW OPERATING MANUAL ┃ ┃ ┃ ┃
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(~ Thrust limit mode
TOGA, FLX, CL, MCT, or MREV limit mode, selected by the position of whichever thrust
lever is farther forward, is displayed in blue.
(~ N1 rating limit
It is computed by the FADEC for the present thrust lever angle, and is displayed in green
Note: When the aircraft is on ground with the engines running, the NI rating limit
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AIRBUS A320 Flight Crew Operating Manual5(178)
