A fatigue management system for determining the individual life of components of at least one aircraft, particularly the individual life of at least one helicopter and/or components of said at least one helicopter, said fatigue management system comprising: - control means for at least one input for customer's flight parameters to operate said aircraft, - at least one data storage with flight data detected during at least one precedent load classification flight at predetermined locations of the aircraft and associated to respective causative operational conditions defined by a series of manoeuvres during said classification flights, said flight data representing all of the at least 75Hz high frequency component load signal time history and the simultaneous, synchronously recorded, high frequency load classification flight parameters time history of the aircraft's manoeuvres performed during said at least one precedent load classification flight out of a defined standard mission profile, and - input means for providing said flight data to processing means with correlation means for said customer's flight parameters to associate said customer's flight parameters, via the respective causative operational conditions defined by a series of manoeuvres during said classification flights, to the corresponding at least 75Hz load data and fatigue damage data computed from said load data from the at least one precedent load classification flight, said processing means comprising truncation means for the customer's flight parameters for truncation into subsequent timeframes between 0.05s and 3s, said processing means further comprising determination means for determining maximum and minimum load data from said at least 75Hz load data in each truncated timeframe and said processing means still further comprising generation means for generating a high frequency fatigue damage value from said fatigue damage data in each truncated timeframe and for generating an extremum curve from said maximum and minimum load data from all truncated timeframes, and - said fatigue management system further comprising a post processor adapted for the determination of an accumulated fatigue damage obtained by the summation of said high frequency fatigue damage values and the low frequency fatigue damage value obtained from the timeframe sequence of maximum and minimum load data of said extremum curve. - control means for at least one input for customer's flight parameters to operate said aircraft, - at least one data storage with flight data detected during at least one precedent load classification flight at predetermined locations of the aircraft and associated to respective causative operational conditions defined by a series of manoeuvres during said classification flights, said flight data representing all of the at least 75Hz high frequency component load signal time history and the simultaneous, synchronously recorded, high frequency load classification flight parameters time history of the aircraft's manoeuvres performed during said at least one precedent load classification flight out of a defined standard mission profile, and - input means for providing said flight data to processing means with correlation means for said customer's flight parameters to associate said customer's flight parameters, via the respective causative operational conditions defined by a series of manoeuvres during said classification flights, to the corresponding at least 75Hz load data and fatigue damage data computed from said load data from the at least one precedent load classification flight, said processing means comprising truncation means for the customer's flight parameters for truncation into subsequent timeframes between 0.05s and 3s, said processing means further comprising determination means for determining maximum and minimum load data from said at least 75Hz load data in each truncated timeframe and said processing means still further comprising generation means for generating a high frequency fatigue damage value from said fatigue damage data in each truncated timeframe and for generating an extremum curve from said maximum and minimum load data from all truncated timeframes, and - said fatigue management system further comprising a post processor adapted for the determination of an accumulated fatigue damage obtained by the summation of said high frequency fatigue damage values and the low frequency fatigue damage value obtained from the timeframe sequence of maximum and minimum load data of said extremum curve.