The principles and testing of the air cooling of the pod-mounted Orpheus day and night aerial reconnaissance system, since 1974 operational with the Royal Netherlands Air Force are described. The pod conditioning system was developed by pod manufacturer, Fokker-VFW, and flight-tested by the National Aerospace Laboratory NLR. At moderate airspeeds (e.g. 400 kts), with ram air temperatures up to 44 C, cooling is provided by ambient air entering the pod through a flush air intake in the nose and leaving it through slots in the pod belly. In low level flight at high subsonic speeds (e.g. 600 kts), with ram air temperatures up to 79 C, the cooling air temperature is kept below 50 C by spraying an automatically controlled amount of water into the airflow near the intake. During the flight testing of a pre-production reconnaissance system, unexpected cooling problems were encountered. These problems, not experienced during previous prototype tests, could be shown to originate in the NACA flush air intake. By changing to a flush air intake with parallel side walls, the cooling system could be made to perform to entire satisfaction in the series.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    The Cooling of a Pod-Mounted Avionic System


    Beteiligte:
    I. Deboer (Autor:in)

    Erscheinungsdatum :

    1976


    Format / Umfang :

    7 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch





    Cooling of Military Avionic Equipment

    SAE Technical Papers | 2015


    Avionic Corrosion

    I. S. Shaffer | NTIS | 1987


    AVIONIC EXHAUST AIR FOR COOLING ENGINE BAY

    ALBERTI GIUSEPPE S / CIRIOLI ADRIANO / BARROWS SEAN THOMAS et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    AVIONIC DISPLAY SYSTEM

    MOROWSKY KATARINA ALEXIS / WYATT IVAN SANDY / GANNON AARON | Europäisches Patentamt | 2021

    Freier Zugriff