An aircraft such as a gyroplane has a thrust propeller, a tail unit, a fuselage, and a keel tube that links the tail unit to the fuselage. The keel tube has a structure that reduces sound. The sound-reducing structure has a flow line-shape, is arranged at least partly below the thrust propeller, and extends from the keel tube in directions normal a vertical longitudinal plane of the gyroplane. The sound-reducing structure may extend asymmetrically from the keel tube and may be located along the longitudinal axis of the gyroplane on the keel tube within an angle between 10 degrees forward and 30 degrees rearward a vertical line extending to the keel tube from the intersection of the thrust propeller rotational axis and the thrust propeller rotational plane. The sound-reducing structure may also contain a sound-absorbent material or may comprise a hollow body with several openings.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Aircraft having keel tube with structure that reduces noise emissions


    Beteiligte:
    MEIER GERHARD T (Autor:in) / BIRKNER OTMAR (Autor:in)

    Erscheinungsdatum :

    2018-01-16


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge



    Aircraft keel beam assembly

    VUKOSAV DANILO / COX DANIEL JUSTIN / POTUPCHIK EVGENIY et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    AIRCRAFT KEEL BEAM ASSEMBLY

    VUKOSAV DANILO / COX DANIEL JUSTIN / POTUPCHIK EVGENIY et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    Keel beam of an aircraft

    DURAND YVES / SOULA DENIS / COLMAGRO JÉRÔME | Europäisches Patentamt | 2015

    Freier Zugriff

    AMPHIBIOUS VEHICLE HAVING BILGE KEEL STRUCTURE

    LEE JUN AM | Europäisches Patentamt | 2021

    Freier Zugriff

    KEEL BEAM ASSEMBLY FOR AN AIRCRAFT

    VUKOSAV DANILO / COX DANIEL / POTUPCHIK EVGENY M et al. | Europäisches Patentamt | 2022

    Freier Zugriff