The invention relates to the rating (S) of a propulsion unit (2) comprising a main engine (3) providing main thrust assisted by an auxiliary engine (4) providing auxiliary thrust, according to the following steps: (i) determining (S1) a distribution between the main thrust and the auxiliary thrust so as to obtain the takeoff thrust of the propulsion unit, the auxiliary thrust making a 5% to 65% contribution to the takeoff thrust, (ii) depending on the distribution determined for the takeoff condition, determining (S2) distribution between the main thrust and the auxiliary thrust so its to obtain the top of climb thrust of the propulsion unit, the auxiliary thrust making at most 70% contribution to the top of climb thrust, and (iii) rating (S3) the propulsion unit (2) in such a way that the main thrust of the main engine (3) determined fir the takeoff condition corresponds to the maximum thrust likely to be achieved by the main engine (3).


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    Title :

    Method for rating a propulsion unit comprising a main engine and an auxiliary engine



    Publication date :

    2023-11-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



    METHOD FOR RATING A PROPULSION UNIT COMPRISING A MAIN ENGINE AND AN AUXILIARY ENGINE

    COAT PASCAL CHARLES EDOUARD / BERSOT JEAN-FRANÇOIS ENDY / ORCEL STEPHANE et al. | European Patent Office | 2018

    Free access

    PROPULSION UNIT COMPRISING A MAIN ENGINE AND AN AUXILIARY ENGINE

    COAT PASCAL CHARLES EDOUARD / BERSOT JEAN-FRANÇOIS ENDY / ORCEL STEPHANE et al. | European Patent Office | 2018

    Free access