Superimposing Instrument Symbology on a Night Vision Goggle Display During Simulated Contour Flight.
Final rept. Feb 92-Jan 93,
DYNAMICS RESEARCH CORP WILMINGTON MA
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This experiment examined the effect of superimposing helmet-mounted display HMD flight information symbology on the aviator night vision goggle ANVIS. Twenty-five rated helicopter pilots with no previous HMD experience were assigned to either an ANVIS-HMD group or a goggles-only group ANVIS-only. All pilots flew familiarization flights and an hour-long reconnaissance mission on the Simulator Training Research Advanced Testbed for Aviation STRATA, a high fidelity simulator. HMD symbology and the night vision goggle effects were integrated into the out-the-window images. Performance of the ANVIS-HMD group was comparable to that of the ANVIS-only group with respect to maintaining airspeed and altitude, detecting targets, detecting wire obstacles, and landing in a confined area. Although ANVIS-HMD users visual activity was in the horizon area of the field of view 85 of the time compared to 63 for the ANVIS-only group, they did not scan more effectively. No evidence of cognitive capture on the symbology was found. pilot experience level and handedness were not associated with flight performance or target detections but eye dominance was.
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