This paper describes the design and evaluation of a new flight reference symbology intended for fixed-wing aircraft helmet-mounted display (HMD) use. The symbology is designed to provide continuous ownship status information (airspeed, altitude, heading, and attitude) regardless of pilot line of sight or head movements during tactical engagements. Most existing symbol sets distributed attitude, airspeed, altitude, and heading information across the HMD field of view (FOV). Some symbologies provide the information in close proximity to an attitude reference but the digital information is presented to the outside of the attitude reference. Distributing flight information across the display FOV poses potential usability disadvantages. First, clutter and occlusion problems are spread across the FOV. Second, information that is spread apart may require more scan area to be sampled in order for the observer to retrieve the desired information. Scanning more area may take more time. Third, information cannot be easily moved within the display FOV without creating consistency and interpretation problems. A new symbology was designed to address these problems: The Non Distributed Flight Reference (NDFR) includes a unique feature to allow directional awareness and spatial orientation to be maintained at extremely high angles of climb and dive. Also, because the symbology forms a composite `information stamp', it has potential application for head-up display and head-down display media. A `first look' evaluation of the NDFR concept is discussed.


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    Title :

    Nondistributed flight reference symbology for helmet-mounted display use during off-boresight viewing: development and evaluation


    Contributors:

    Conference:

    Helmet- and Head-Mounted Displays V ; 2000 ; Orlando,FL,USA


    Published in:

    Publication date :

    2000-06-23





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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