A320机组操作手册FLIGHT CREW OPERATING MANUAL 6(66)

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5. Trip fuel and time
‐ Enter air distance and flight level 370 (Refer to PER-FPL-FLP-QFP-40 FLIGHT PLANNING
M.78), read the corresponding values of fuel consumption and time, for the reference landing
weight and without deviation from ISA.
Fuel : 8 166 kg
Time : 3 h 59 min
‐ Correction for landing weight
Δ􀀃etdk
consumption
: 155 × (62.752 – 55) = 1 202 kg
Trip reserves
(5 %)
: 0.05 × (8 166 +) = 469 kg
6. Taxi fuel = 140 kg (Refer to PER-FPL-GEN-MFR MINIMUM RECOMMENDED FUEL
REQUIREMENTS)
7. Total fuel on board (Block fuel) :
8 166 + + 469 + + 1 509 + 140 = 12 729 kg
EXAMPLE
Applicable to:
The following is an example of a complete flight plan based on the assumptions :
‐ Zero fuel weight : 55 000 kg = landing weight at alternate airport
‐ Cruise M .78 at FL 370
‐ Ground distance from departure to destination : 1 800 nm
‐ Average wind during flight : -40 kt (headwind)
‐ ISA conditions
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
FLIGHT PLANNING
FLIGHT PREPARATION - QUICK DETERMINATION OF FLIGHT PLANNING
A318/A319/A320/A321 FLEET PER-FPL-FLP-QFP-30 P 5/10
FCOM 19 AUG 10
‐ “En route” reserve : 5 %
‐ Ground distance from destination to alternate : 200 nm, no wind at FL 200
To calculate the flight plan, a reverse calculation is needed, i.e. start with the landing weight at
alternate (the schematic Refer to PER-FPL-GEN-FPL FLIGHT PLAN gives an overview of the
calculation to be performed).
1. Alternate fuel and time
‐ Refer to PER-FPL-FLP-ALN-20 ALTERNATE PLANNING ISA ;
Alternate time : 39 min
Alternate fuel : 1 478 + 9 × (55 – 50) = 1 523 kg
2. Holding fuel and time
‐ A 30 min holding is assumed at 1 500 ft. (Refer to PER-HOL-AEO CONF 0 - GD SPEED),
holding fuel = 1 106 kg
3. At destination, the landing weight = 55 000 + 1 523 + = 57 629 kg
4. Evaluation of the air distance between departure and destination.
‐ The “Ground distance/Air distance” conversion table (Refer to PER-OPD-CON-AEO M.78)
shows that the corresponding air distance is : 1 975 nm.
5. Trip fuel and time
‐ Enter air distance and flight level 370 (Refer to PER-FPL-FLP-QFP-40 FLIGHT PLANNING
M.78), read the corresponding values of fuel consumption and time, for the reference landing
weight and without deviation from ISA.
Fuel : 9 627 kg
Time : 4 h 37 min
‐ Correction for landing weight
Δ􀀃etdk
consumption
: 118 × (57.629 – 50) = 901 kg
Trip reserves
(5 %)
: 0.05 × (9 627 + 901) = 527 kg
6. Taxi fuel = 120 kg (Refer to PER-FPL-GEN-MFR MINIMUM RECOMMENDED FUEL
REQUIREMENTS)
7. Total fuel on board (Block fuel) :
9 627 + 901 + 527 + + 1 523 + 120 = 13 804 kg
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
FLIGHT PLANNING
FLIGHT PREPARATION - QUICK DETERMINATION OF FLIGHT PLANNING
A318/A319/A320/A321 FLEET PER-FPL-FLP-QFP-30 P 6/10
FCOM 19 AUG 10
EXAMPLE
Applicable to:
The following is an example of a complete flight plan based on the assumptions :
Zero fuel weight : 55 000 kg = landing ‐ weight at alternate airport
‐ Cruise M .78 at FL 370
‐ Ground distance from departure to destination : 1 800 nm
‐ Average wind during flight : -40 kt (headwind)
‐ ISA conditions
‐ “En route” reserve : 5 %
‐ Ground distance from destination to alternate : 200 nm, no wind at FL 200
To calculate the flight plan, a reverse calculation is needed, i.e. start with the landing weight at
alternate (the schematic Refer to PER-FPL-GEN-FPL FLIGHT PLAN gives an overview of the
calculation to be performed).
1. Alternate fuel and time
‐ Refer to PER-FPL-FLP-ALN-20 ALTERNATE PLANNING ISA ;
Alternate time : 40 min
Alternate fuel : 1 460 + 10 × (55 – 50) = 1 510 kg
2. Holding fuel and time
‐ A 30 min holding is assumed at 1 500 ft. (Refer to PER-HOL-AEO CONF 0 - GD SPEED),
holding fuel = 1 047 kg
3. At destination, the landing weight = 50 000 + 1 510 + = 57 557 kg
4. Evaluation of the air distance between departure and destination.
‐ The “Ground distance/Air distance” conversion table (Refer to PER-OPD-CON-AEO M.78)
shows that the corresponding air distance is : 1 688 nm.
5. Trip fuel and time
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PERFORMANCE
FLIGHT PLANNING
FLIGHT PREPARATION - QUICK DETERMINATION OF FLIGHT PLANNING
A318/A319/A320/A321 FLEET PER-FPL-FLP-QFP-30 P 7/10
FCOM 19 AUG 10
‐ Enter air distance and flight level 370 (Refer to PER-FPL-FLP-QFP-40 FLIGHT PLANNING
　
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