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IN CRUISE QUICK CHECK AT FIXED SPEEDS
Applicable to: ,
The following in cruise quick check tables allow the flight crew to determine the fuel consumption and
the time required to cover a given air distance from any moment in cruise to landing with one engine
inoperative.
These tables are established for :
Cruise ‐ speed MCT/330 kt, MCT/310 kt.
‐ Descent profile : .M 80/300 kt/250 kt
‐ Approach and landing : 240 kg or 530 lb - 6 min IMC
‐ ISA
‐ CG = 30 %
‐ Pack flow HI
‐ Anti ice OFF
Note: 1. In the tables, the asterisk (*) means that a step climb of 4 000 ft has been made to reach
the corresponding flight level.
2. The flight level shown on the top of each column is the final flight level.
3. For each degree Celsius above ISA apply a fuel correction of
0.010 (kg/°C/NM) × ΔISA (°C) × Air distance (NM)
or 0.022 (lb/°C/NM) × ΔISA (°C) × Air distance (NM)
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
CRUISE
ONE ENGINE INOPERATIVE - IN CRUISE QUICK CHECK
A330/A340 FLEET PER-CRZ-OEI-ICQ-20 P 4/4
FCOM 19 AUG 10
IN CRUISE QUICK CHECK 310 KT
Applicable to: ,
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
CRUISE
TWO ENGINES INOPERATIVE - GENERAL
A330/A340 FLEET PER-CRZ-TEI-GEN P 1/2
FCOM 19 AUG 10
GENERAL
Applicable to:
After failure of a second engine, descent will be performed at green dot speed, with maximum
continuous thrust. After level-off, the altitude will be maintained, and the aircraft will accelerate up to
long range speed. Descent to destination will be performed at 300 kt/250 kt, idle thrust.
EXAMPLE
Applicable to:
GIVEN
GW at engine failure = 300 000 kg
FL at engine failure = 350
Temperature = ISA + 10
Distance to diversion airport = 2 000 nm
No wind - No obstacle
FIND
Descent to drift down ceiling :
Refer to PER-TEI-DES-10 DESCENT AT GREEN DOT SPEED - ISA + 10
Distance = 398 nm
Fuel = 6 300 kg
Time = 70 min
Ceiling = 22 500 ft
Cruise and descent to 1 500 ft :
Weight = 200 000 - 6 300 = 193 700 kg
Distance = 2 000 - 398 = 1 602 nm
Interpolate fuel and time for 193 700 kg and 1 602 nm:
Refer to PER-CRZ-TEI-ICQ FUEL AND TIME FROM LEVEL OFF TO END OF DESCENT AT
1500 FT
Fuel = 25 510 kg
Time = 4 h 54 min
Temperature correction
Add for each °C above ISA temperature 0.015 kg per NM cruise air distance
Fuel : 25 510+ (0.015 × 10 × 1602) = 25 750 kg
Approach and Landing
IMC procedure : 330 kg / 6 min
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
CRUISE
TWO ENGINES INOPERATIVE - GENERAL
A330/A340 FLEET PER-CRZ-TEI-GEN P 2/2
FCOM 19 AUG 10
RESULTS
Total fuel = 32 380 kg
Total time = 6 h 10 min
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
CRUISE
TWO ENGINES INOPERATIVE - ALTITUDE
A330/A340 FLEET PER-CRZ-TEI-ALT-10 P 1/2
FCOM 19 AUG 10
CEILINGS
GROSS CEILINGS AT LONG RANGE AND GREEN DOT SPEEDS
Applicable to:
Pack flow HI— Anti ice OFF
Note: If severe icing conditions are encountered, ice formation may build up on non heated
structure and therefore the ceiling will be reduced by 7 000 ft .
ENGINE ANTI ICE ON TOTAL ANTI ICE ON
LONG RANGE -3 800 ft -6 000 ft
GREEN DOT -2 100 ft -3 400 ft
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
CRUISE
TWO ENGINES INOPERATIVE - ALTITUDE
A330/A340 FLEET PER-CRZ-TEI-ALT-10 P 2/2
FCOM 19 AUG 10
NET CEILING AT GREEN DOT SPEED
Applicable to:
To obtain the net ceiling at green dot speed, apply the following corrections to the gross ceilings at
green dot speed :
WEIGHT (1 000 kg)
260 240 220 200 180 160 140
≤ ISA +10 -6 200 ft -5 800 ft -4 800 ft -3 000 ft -2 800 ft -2 600 ft - 2 700 ft
ISA +20 -6 900 ft -7 500 ft -7 400 ft -5 500 ft -3 100 ft -2 800 ft - 2 800 ft
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
CRUISE
TWO ENGINES INOPERATIVE - CRUISE TABLES
A330/A340 FLEET PER-CRZ-TEI-CRT-10 P 1/6
FCOM 19 AUG 10
STANDARD STRATEGY
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
CRUISE
TWO ENGINES INOPERATIVE - CRUISE TABLES
A330/A340 FLEET PER-CRZ-TEI-CRT-10 P 2/6
FCOM 19 AUG 10
LONG RANGE CRUISE - ISA
Applicable to:
A330/A340 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
CRUISE
TWO ENGINES INOPERATIVE - CRUISE TABLES
A330/A340 FLEET PER-CRZ-TEI-CRT-10 P 3/6
FCOM 19 AUG 10
LONG RANGE CRUISE - ISA + 10
　
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