A flight investigation was undertaken to study the problems associated with manual and automatic control of steep, decelerating instrument approaches and landings under simulated instrument conditions. The study was conducted with a research helicopter equipped with a three-cue flight-director indicator. The scope of the investigation included variations in the flight-director control laws, glide-path angle, deceleration profile, and control response characteristics. Investigation of the automatic-control problem resulted in the first automated approach and landing to a predetermined spot ever accomplished with a helicopter. Although well-controlled approaches and landings could be performed manually with the flight-director concept, pilot comments indicated the need for a better display which would more effectively integrate command and situation information.


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    Title :

    Flight investigation of manual and automatic VTOL decelerating instrument approaches and landings


    Contributors:

    Publication date :

    1974-07-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Flight Investigation of Manual and Automatic VTOL Decelerating Instrument Approaches and Landings

    J. R. Kelly / F. R. Niessen / J. J. Thibodeaux et al. | NTIS | 1974



    VTOL Flight Investigation to Develop a Decelerating Instrument Approach Capability

    Kelly, James R. / Garren, John F. / Sommer, Robert W. | SAE Technical Papers | 1969


    VTOL flight investigation to develop a decelerating instrument approach capability

    Garren, J. F., Jr. / Kelly, J. R. / Sommer, R. W. | NTRS | 1969