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tank.
After refueling to maximum tank capacity, fuel can expand by 2 % (20 °C temperature increase)
without spillage.
There is an overpressure protector in each wing surge tank, in the trim surge tank.
DESCRIPTION
Applicable to: ,
The wings have inner and outer tanks. Each inner tank contains one collector cell that :
‐ Maintains a fuel reservoir for the fuel booster pumps and provides negative 'g' protection to feed
the engines.
‐ Is maintained full and contains about 1 000 kg (2 200 lb) of fuel.
Each inner tank is divided into two parts via a SPLIT valve that normally remains open. The inner
tank is used as a single tank and, if tank damage is suspected (i.e. FQI data is lost or there is a rapid
FQI decrease following an engine failure), the SPLIT valve can be manually closed by using the
dedicated pushbutton on the overhead panel.
In each wing, and on the right of the THS trim tank, there is a vent surge tank outboard of the outer
tank.
After refueling to maximum tank capacity, fuel can expand by 2 % (20 °C temperature increase)
without spillage.
There is an overpressure protector in each wing surge tank, in the trim surge tank, and between the
center and the right inner tanks.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
DESCRIPTION - TANKS
A330/A340 FLEET DSC-28-10-20 P 3/6
FCOM 19 AUG 10
TANK ARRANGEMENT
Applicable to:
USABLE FUEL
OUTER TANKS INNER TANKS CENTER TANK TRIM TANK TOTAL
VOLUME (US(l igtearlslo)ns) 3 695604 xx 22 1412 370715 xx 22 1412 240207 16 263406 14317 530803
WEIGHT (1) (KG) 2 865 x 2 33 578 x 2 33 300 4 890 111 078 (LB) 6 315 x 2 74 033 x 2 73 417 10 782 244 896
(1) Fuel specific gravity: 0.785 kg/l or 6.551 lb/US Gal.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
DESCRIPTION - TANKS
A330/A340 FLEET DSC-28-10-20 P 4/6
FCOM 19 AUG 10
TANK ARRANGEMENT
Applicable to:
USABLE FUEL
OUTER TANKS INNER TANKS TRIM TANK TOTAL
VOLUME (US(l igtearlslo)ns) 3 692547 xx 22 1411 090714 xx 22 16 263406 2957 270806
To be continued on next page
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
DESCRIPTION - TANKS
A330/A340 FLEET DSC-28-10-20 P 5/6
FCOM 19 AUG 10
Continued from previous page
USABLE FUEL
OUTER TANKS INNER TANKS TRIM TANK TOTAL
WEIGHT (1) (KG) 2 845 x 2 32 895 x 2 4 891 76 369 (LB) 6 272 x 2 72 520 x 2 10 782 168 364
(1) Fuel specific gravity: 0.785 kg/l or 6.551 lb/US Gal.
TANK ARRANGEMENT
Applicable to: ,
USABLE FUEL
OUTER TANKS INNER TANKS CENTER TANK TRIM TANK TOTAL
VOLUME (US(l igtearlslo)ns) 3 695604 xx 22 1412 000905 xx 22 1401 596709 16 263406 13396 079403
To be continued on next page
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
DESCRIPTION - TANKS
A330/A340 FLEET DSC-28-10-20 P 6/6
FCOM 19 AUG 10
Continued from previous page
USABLE FUEL
OUTER TANKS INNER TANKS CENTER TANK TRIM TANK TOTAL
WEIGHT (1) (KG) 2 865 x 2 32 970 x 2 32 625 4 891 109 186 (LB) 6317 x 2 72 686 x 2 71 925 10 782 240 713
(1) Fuel specific gravity: 0.785 kg/l or 6.551 lb/US Gal.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
DESCRIPTION - FUEL CONTROL AND MONITORING SYSTEM (FCMS)
A330/A340 FLEET DSC-28-10-30 P 1/2
FCOM 19 AUG 10
GENERAL
Applicable to:
The fuel system is controlled by two Fuel Control and Monitoring Computers (FCMC).
The FCMCs :
Measure the fuel quantity ‐ and indicate it on the ECAM.
‐ Calculate the aircraft's Gross Weight and Center of gravity, based on the Zero Fuel Weight and the
CG entered by the crew.
‐ Control transfer of fuel to the inner tanks for engine feed.
‐ Control transfers of fuel to and from the trim tank for CG control.
‐ Send signals to the FADEC to control the fuel recirculation system.
Magnetic level indicators are fitted in the lower surfaces of the center and wing tanks to allow the
manual measurement of each tank's fuel quantity.
GENERAL
Applicable to: ,
The fuel system is controlled by two Fuel Control and Monitoring Computers (FCMC).
The FCMCs :
‐ Measure the fuel quantity and indicate it on the ECAM.
‐ Calculate the aircraft's Gross Weight and Center of gravity, based on the Zero Fuel Weight and the
CG entered by the crew.
‐ Control transfer of fuel to the inner tanks for engine feed.
‐ Control transfers of fuel to and from the trim tank for CG control.
Magnetic level indicators are fitted in the lower surfaces of the center and wing tanks to allow the
manual measurement of each tank's fuel quantity.
　
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