The Category IIIA ILS guidance system is designed to provide a VHF/UHF localizer and glide slope with increased performance and a backup capability. The overall flyability of the systems must be superior to a Category I or II system due to the lower minimums (700 feet RVR) authorized for the approach. Since the radiated signal is in the UHF/VHF frequency band, it is subject to the same errors and limitations caused by ground or airborne vehicles. The success, then, of a Category IIIA approach depends on the control of interference factors and capability of the aircraft and pilot to maintain the localizer and glide path. (Author)


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Dulles Category IIIA ILS Evaluation


    Contributors:

    Publication date :

    1972


    Size :

    19 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    DULLES INTERNATIONAL AIRPORT

    HOWELL, HERBERT H. | SAE Technical Papers | 1959


    The Dulles Greenway

    Online Contents | 1994


    Dulles international airport

    Howell, H.H. | Engineering Index Backfile | 1959


    Dulles International Airport Access

    R. G. Baxter | NTIS | 1970


    Dulles International Airport Construction Challenges

    Hinker, C. P. / American Society of Civil Engineers; Air Transport Division | British Library Conference Proceedings | 1994