The emphasis on aviator workload has been of primary concern to the U.S. Army aviation community since the incorporation of low altitude terrain flight techniques into the helicopter tactics repertory. Since navigation is a particularly acute problem at low altitudes, this project examined the visual workload of the navigator/copilot during terrain flight (nap-of-the-earth, contour and low level) in a UH-1H helicopter. The navigator's task was to: (1) perform a map study of the prescribed course, (2) direct the pilot during the flight as to the direction of flight, altitude and airspeed desired to traverse the course, and (3) identify hover points and checkpoints along the route which were given to the navigator in terms of six digit grid coordinates. Visual performance was measured via a modified NAC Eye Mark Recorder used in conjunction with a LOCAM high speed camera. This technique provided the means to objectively record and analyze the navigator's visual performance through the examination of: (1) visual time inside the cockpit on flight and engine instruments, (2) time inside the cockpit on the map or other navigation aids, and (3) time outside the cockpit in various windscreen sectors.


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    Title :

    Visual Workload of the Copilot/Navigator During Terrain Flight


    Contributors:

    Publication date :

    1977


    Size :

    33 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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