Abstract: A method for designing an aircraft includes defining an initial catalog of requirements for at least one aircraft design. An optimization of the at least one aircraft design is carried out based on the catalog of requirements in terms of anticipated operating costs. A predefined total flight network is simulated with the at least one aircraft design and a total flight network efficiency is determined. It is then checked as to whether the determined total flight network efficiency constitutes an optimum. The catalog of requirements is adapted and an iteration is performed upon a determination that the determined total flight network efficiency does not constitute the optimum.

Abstract: A method for analyzing airline passenger ticket mass data stocks includes linking ticket data with flight schedule information so as to form a database comprising ticket coupon data for each flight event. It is ensured that individual ticket coupons for each flight event are sorted in accordance with respective ticket coupon receipts in a predefined order. Receipts are determined for each flight event as a function of a number of a serial passenger code number in accordance with the sorted ticket coupons. Calibration parameters of a function Yi(X) are determined for each individual flight event i. Calibration of the function Yi(X) is carried out based on the determined receipts as a function of the serial passenger code number in such a way that deviations of functional values Yi from the determined receipts are as small as possible. Calibrated functions are combined into clusters for assignment based on flight information.

Abstract: A method for designing an aircraft includes defining an initial catalog of requirements for at least one aircraft design. An optimization of the at least one aircraft design is carried out based on the catalog of requirements in terms of anticipated operating costs. A predefined total flight network is simulated with the at least one aircraft design and a total flight network efficiency is determined. It is then checked as to whether the determined total flight network efficiency constitutes an optimum. The catalog of requirements is adapted and an iteration is performed upon a determination that the determined total flight network efficiency does not constitute the optimum.