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PERFORMANCE
CRUISE
ONE ENGINE INOPERATIVE - GENERAL
A318/A319/A320/A321 FLEET PER-CRZ-OEI-GEN-20 P 6/8
FCOM 19 AUG 10
(Refer to PER-DES-OEI-ETO DESCENT - M.80/350KT - 1 ENGINE OUT)
Distance = 200 - 107 = 93 nm
Fuel = 1 191 - 763 = 428 kg
Time = 27.1 - 15.1 = 12 min
Cruise
Weight = 70 000 - 428 = 69 572 kg
Distance = 600 - 93 = 507 nm
Determine (Refer to PER-CRZ-OEI-ICQ-20 IN CRUISE QUICK CHECK VMO) time and fuel
consumption at ISA conditions for a reference weight of 55 000 kg
Interpolate the remaining distance of 507 nm at FL 180
Fuel = 3 258 kg
Time = 1 h 27 min
Correction due to actual in-cruise weight
◂Fuel = +1 kg per 1 000 kg above reference weight
◂Fuel = +1 kg × (69.6 – 55) ~ 15 kg
RESULT :
Total Fuel = 3 258 + 15 + 428 = 3 701 kg
Time = 1 h 27 min + 12 min = 1 h 39 min
EXAMPLE
Applicable to: MSN,
GIVEN :
GW at engine failure = 70 000 kg
FL at engine failure = 350
Temperature = ISA
Distance to diversion airport = 500 nm
Speed selected before dispatch = 350 kt
Cruise level for diversion
Selected before dispatch = FL 180
FIND :
Descent to cruise level :
(Refer to PER-DES-OEI-ETO DESCENT - M.80/350KT - 1 ENGINE OUT)
Distance = 199 - 106 = 93 nm
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
CRUISE
ONE ENGINE INOPERATIVE - GENERAL
A318/A319/A320/A321 FLEET PER-CRZ-OEI-GEN-20 P 7/8
FCOM 19 AUG 10
Fuel = 1 186 - 760 = 426 kg
Time = 26.9 - 15.1 = 11.8 min
Cruise
Weight = 70 000 - 426 = 69 574 kg
Distance = 500 - 93 = 407 nm
Determine (Refer to PER-CRZ-OEI-ICQ-20 IN CRUISE QUICK CHECK VMO) time and fuel
consumption at ISA conditions for a reference weight of 55 000 kg
Interpolate the remaining distance of 407 nm at FL 180
Fuel = 2 595 kg
Time = 1 h 12 min
Correction due to actual in-cruise weight : no correction here
RESULT :
Total Fuel = 2 595 + 426 = 3 021 kg
Time = 1 h 12 min + 12 min = 1 h 24 min
EXAMPLE
Applicable to: MSN,
GIVEN :
GW at engine failure = 75 000 kg
FL at engine failure = 350
Temperature = ISA
Distance to diversion airport = 500 nm
Speed selected before dispatch = 350 kt
Cruise level for diversion
Selected before dispatch = FL 180
FIND :
Descent to cruise level :
(Refer to PER-DES-OEI-ETO DESCENT - M.80/350KT - 1 ENGINE OUT)
Distance = 194 - 102 = 92 nm
Fuel = 1 250 - 780 = 470 kg
Time = 26.2 - 14.5 = 11.7 min
Cruise
Weight = 75 000 - 470 = 74 530 kg
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
CRUISE
ONE ENGINE INOPERATIVE - GENERAL
A318/A319/A320/A321 FLEET PER-CRZ-OEI-GEN-20 P 8/8
FCOM 19 AUG 10
Distance = 500 - 92 = 408 nm
Determine (Refer to PER-CRZ-OEI-ICQ-20 IN CRUISE QUICK CHECK VMO) time and fuel
consumption at ISA conditions for a reference weight of 60 000 kg
Interpolate the remaining distance of 408 nm at FL 180
Fuel = 2 839 kg
Time = 1 h 11 min
Correction due to actual in-cruise weight
◂Fuel = +3 kg per 1 000 kg above reference weight
◂Fuel = +3 kg × (74.5 – 60) ~ 44 kg
RESULT :
Total Fuel = 2 839 + 44 + 470 = 3 353 kg
Time = 1 h 11 min + 12 min = 1 h 23 min
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
CRUISE
ONE ENGINE INOPERATIVE - ALTITUDE
A318/A319/A320/A321 FLEET PER-CRZ-OEI-ALT-10 P 1/10
FCOM 19 AUG 10
CEILINGS
GROSS CEILINGS AT LONG RANGE AND GREEN DOT SPEEDS
Applicable to:
Note: If severe icing conditions are encountered, ice formation may build up on non heated
structure and therefore the ceiling will be reduced by :
• 4 000 ft for aircraft weight below or equal to 60 000 kg
• 7 500 ft for aircraft weight above or equal to 75 000 kg
• linear interpolation must be applied between the two aircraft weights
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
CRUISE
ONE ENGINE INOPERATIVE - ALTITUDE
A318/A319/A320/A321 FLEET PER-CRZ-OEI-ALT-10 P 2/10
FCOM 19 AUG 10
GROSS CEILINGS AT LONG RANGE AND GREEN DOT SPEEDS
Applicable to: MSN,
Note: If severe icing conditions are encountered, ice formation may build up on non heated
structure and therefore the ceiling will be reduced by 2 000 ft.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
CRUISE
ONE ENGINE INOPERATIVE - ALTITUDE
A318/A319/A320/A321 FLEET PER-CRZ-OEI-ALT-10 P 3/10
FCOM 19 AUG 10
GROSS CEILINGS AT LONG RANGE AND GREEN DOT SPEEDS
　
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