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A computer implemented fuel management method and system for monitoring and minimizing a fuel consumption of an aircraft. The fuel management system and method determines, on the basis of model assumptions, a theoretical value relating to the quantity of fuel that is necessary for travelling along a

A computer implemented fuel management method and system for monitoring and minimizing a fuel consumption of an aircraft. The fuel management system and method determines, on the basis of model assumptions, a theoretical value relating to the quantity of fuel that is necessary for travelling along at least one sector of a flight route. Furthermore, the fuel management system and method determine a practical value relating to a quantity of fuel that is necessary for travelling along the same sector of the flight route, taking into account actual measured values. Moreover, the system and method compare the theoretical value with the practical value and to provide at least one measure in order to save fuel during a flight when the practical value differs from the theoretical value by a predeterminable amount.

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1. A computer-implemented fuel management method for monitoring and minimizing a fuel consumption of an aircraft, comprising: determining, on the basis of model assumptions, a theoretical value of a first quantity of fuel that is necessary for travelling along at least one sector of a flight route,

1. A computer-implemented fuel management method for monitoring and minimizing a fuel consumption of an aircraft, comprising: determining, on the basis of model assumptions, a theoretical value of a first quantity of fuel that is necessary for travelling along at least one sector of a flight route, the first quantity of fuel comprising one or more of a quantity of fuel required for taxiing of the aircraft, a quantity of fuel required for travelling along the at least one sector of the flight route of the aircraft, and a quantity of fuel required for contingency;determining a practical value of a second quantity of fuel that is necessary for travelling along a remaining flight distance of the at least one sector of the flight route, taking into account a plurality of actual measured values;comparing the theoretical value of the first quantity of fuel with the practical value of the second quantity of fuel; andproviding at least one measure in order to save fuel during the flight when the practical value of the second quantity of fuel differs from the theoretical value of the first quantity of fuel by a predeterminable amount;wherein the at least one measure for saving fuel during the flight comprises reduction of the energy consumption of at least one on-board system;wherein the at least one measure is provided by a fuel management system. 2. The fuel management method of claim 1, wherein the plurality of actually measured values comprise at least one measured value from the following group: a quantity of fuel that is actually present on board at the time, and an actual fuel consumption at the time. 3. The fuel management method of claim 1, wherein providing the at least one measure for saving fuel during the flight comprises generating a signal;wherein the signal is transmitted to an aircrew; andwherein the signal lists proposals of at least one measure in order to save fuel during the flight. 4. The fuel management method of claim 1, wherein the at least one measure for saving fuel during the flight further comprises at least one measure from the following group: optimization of flight parameters; and transfer pumping fuel in order to optimise the center of gravity of the aircraft. 5. The fuel management method of claim 1, further comprising determining the center of gravity of the aircraft;wherein the center of gravity that has been determined is used in the determination of the theoretical value; andwherein during the determination of the center of gravity at least one of the following characteristics is taken into account: number, distribution and weight of objects in the aircraft. 6. The fuel management method of claim 5, further comprising determining the characteristic of distribution of the objects in the aircraft by signal transmission during the fastening of seat belts. 7. The fuel management method of claim 5, further comprising determining the characteristic of the weight of the objects by sensors that are integrated in aircraft seats. 8. The fuel management method of claim 5, further comprising determining at least one of the characteristics of the weight and of the distribution of the objects by way of RFID tags arranged on the objects. 9. The fuel management method of claim 5, wherein the at least one measure to save fuel during flight uses data relating to the determined center of gravity of the aircraft in order to optimize the center of gravity of the aircraft by transfer pumping fuel. 10. A computer readable medium having instructions for monitoring and minimizing a fuel consumption during the flight of an aircraft, wherein execution of the instructions causes a processor of a fuel management system to: determine a theoretical value of a first fuel quantity that is necessary for travelling along at least one sector of a flight route, based on model assumptions, the first quantity of fuel comprising one or more of a quantity of fuel required for taxiing of the aircraft, a quantity of fuel required for travelling along the at least one sector of the flight route of the aircraft, and a quantity of fuel required for contingency;determine a practical value of a second quantity of fuel that is necessary for travelling along a remaining flight distance of the at least one sector of the flight route, taking into account a plurality of actual measured values;compare the theoretical value of the first quantity of fuel with the practical value of the second quantity of fuel; andprovide at least one measure to save fuel during the flight when the practical value of the second quantity of fuel differs from the theoretical value of the first quantity of fuel by a predeterminable amount;wherein the at least one measure for saving fuel during the flight comprises reduction of the energy consumption of at least one on-board system. 11. A computer system for monitoring and minimizing a fuel consumption during the flight of an aircraft, the system comprising a processor programmed to: determine a theoretical value of a first fuel quantity that is necessary for travelling along at least one sector of a flight route, based on model assumptions, the first quantity of fuel comprising one or more of a quantity of fuel required for taxiing of the aircraft, a quantity of fuel required for travelling along the at least one sector of the flight route of the aircraft, and a quantity of fuel required for contingency;determine a practical value of a second quantity of fuel that is necessary for travelling along a remaining flight distance of the at least one sector of the flight route, taking into account a plurality of actual measured values;compare the theoretical value of the first quantity of fuel with the practical value of the second quantity of fuel; andprovide at least one measure to save fuel during the flight when the practical value of the second quantity of fuel differs from the theoretical value of the first quantity of fuel by a predeterminable amount;wherein the at least one measure for saving fuel during the flight comprises reduction of the energy consumption of at least one on-board system;wherein the computer system is a fuel management system. 12. The computer system of claim 11, wherein the processor is disposed within the aircraft.