There is provided a lower attachment 2 for a trimmable horizontal stabiliser actuator (THSA) 1 for connecting the THSA 1 to a flight control surface, the lower attachment 2 comprising: a nut assembly 18 for providing a load path through the THSA 1 to the flight control surface when the THSA 1 is connected to the flight control surface, comprising: a nut 26 for location on a screw shaft 8 of the THSA 1, a failsafe plate 20 for coupling to the flight control surface, and a transfer plate 22 for transferring load between the failsafe plate 20 and the nut 26; wherein the nut assembly 18 has a first unloaded configuration in which there is no contact between the nut 26 and the transfer plate 22, and a second loaded configuration in which there is contact between a first pair of opposed surfaces 34 of the nut 26 and the transfer plate 22, and a clearance 40 between a second pair of opposed surfaces 36 of the nut 26 and the transfer plate 22; and a locking assembly 44 operable to prevent relative movement of the nut 26 and the transfer plate 22 in response to the nut assembly 18 transitioning to the second configuration.


    Access

    Download


    Export, share and cite



    Title :

    LOWER ATTACHMENT FOR TRIMMABLE HORIZONTAL STABILISER ACTUATOR


    Additional title:

    FIXATION INFERIEURE POUR UN ACTIONNEUR DE STABILISATEUR HORIZONTAL AJUSTABLE


    Contributors:

    Publication date :

    2024-06-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    LOWER ATTACHMENT FOR TRIMMABLE HORIZONTAL STABILISER ACTUATOR

    ABDUL BARI ANH VU / MEDINA RAPHAEL | European Patent Office | 2024

    Free access

    Lower Attachment for Trimmable Horizontal Stabiliser Actuator

    MEDINA RAPHAEL / RICARD QUENTIN | European Patent Office | 2017

    Free access

    LOWER ATTACHMENT FOR TRIMMABLE HORIZONTAL STABILISER ACTUATOR

    ABDUL BARI ANH VU / MEDINA RAPHAEL | European Patent Office | 2024

    Free access

    Lower attachment for trimmable horizontal stabiliser actuator

    MEDINA RAPHAEL / ABDUL-BARI ANH-VU | European Patent Office | 2019

    Free access

    Lower attachment for trimmable horizontal stabiliser actuator

    MEDINA RAPHAEL / RICARD QUENTIN | European Patent Office | 2018

    Free access