Patent ID: 7532970
Filing Date: 2009-05-12
Classification: F02C,F05D

Abstract:
1. A method for doing an optimization of an initial envelope of performance of a rotorcraft turbine engine, said initial envelope being associated with a maximum number of flying hours (TBO) that said turbine engine can perform before being overhauled, and also with at least a first initial rating defined by two first initial performance levels relating respectively to a first power (Pi) and to a first utilization time (Ti) for said first power (Pi), wherein, in order to perform said optimization, an alternative envelope of performance is defined by doing a modification of said initial envelope, said modification being compensated by reducing at least one of said first initial performance levels of said first initial rating, said alternative envelope being associated with said maximum number of flying hours (TBO) authorized for operating the turbine engine in compliance with said initial envelope.