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The PF should announce "Take-off". The PF then applies power in as follows:
If cross wind is at or below 20 kt and there is no tail wind
? From idle to 1.05 EPR / 50 % N1 by reference to the TLA indicator on the EPR / N1 gauge.
? When the engine parameters have stabilized, to the FLX/MCT or TOGA detent as appropriate.
In case of tailwind or if cross wind is greater than 20 kt:
? From idle to 1.05 EPR / 50 % N1 by reference to the TLA indicator on the EPR / N1 gauge.
? Once stabilized, from 1.05 EPR / 50 % N1 to 1.15 EPR / 70 % N1 by reference to the TLA indicator on the EPR / N1 gauge.
? Then, to FLX / TOGA, as required to reach take-off thrust by 40 kt groundspeed.
This procedure ensures that all engines will accelerate similarly. If not properly applied, this may lead to asymmetrical thrust increase, and, consequently, to severe directional control problem.
If the thrust levers are not set to the proper take-off detent, e.g. FLX instead of TOGA, a message comes up on the ECAM.
THRUST SETTING
Criteria: 73-1065, SA
Applicable to: MSN 0225, 0326, 0344, 0376-0386, 0478-0480
The PF should announce "Take-off". The PF then applies power in as follows:
If cross wind is at or below 20 kt and there is no tail wind
? From idle to 1.05 EPR / 50 % N1 by reference to the TLA indicator on the EPR / N1 gauge.
? When the engine parameters have stabilized, to the FLX/MCT or TOGA detent as appropriate.
In case of tailwind or if cross wind is greater than 20 kt:
? From idle to 1.05 EPR / 50 % N1 by reference to the TLA indicator on the EPR / N1 gauge.
? Then, to FLX / TOGA, as required to reach take-off thrust by 40 kt groundspeed.
NORMAL OPERATIONS
TAKEOFF
A318/A319/A320/A321
FLIGHT CREW TRAINING MANUAL
This procedure ensures that all engines will accelerate similarly. If not properly applied, this may lead to asymmetrical thrust increase, and, consequently, to severe directional control problem.
The Electronic Engine Control (EEC) computer prevents the engine stabilizing between an approximate range of 60 to 74 % N1, in order to protect against fan flutter. This range is called the Keep-Out-Zone, and the flight crew may notice a non-linear thrust response to thrust lever movement. If one lever is moved out of the Keep-Out-Zone before the other, a very slow movement of the levers may lead to asymmetric engine acceleration.
If the thrust levers are not set to the proper take-off detent, e.g. FLX instead of TOGA, a message comes up on the ECAM.
TAKEOFF ROLL
Applicable to: ALL
Once the thrust is set, the PF announces the indications on the FMA. The PNF must check that the thrust is set by 80 kt and must announce "Thrust Set".
The Captain must keep his hand on the thrust levers when the thrust levers are set to TOGA/FLX notch and until V1.
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