The Effect of HUD (Head-Up-Display) Symbology Size on Operator Performance Under Various Luminance Conditions
Summary rept. Oct 1986-Nov 1987
HARRY G ARMSTRONG AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OH
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A study was conducted to determine the amount of reduction that could be imposed upon the size of symbology and scales used on the A-10 aircraft head-up-display HUD. Four symbology and scale sizes were selected for study 1 the current A-10 HUD display size 2 a 15 reduction of the current display size 3 a 30 reduction and 4 a 45 reduction of the current display size. Twelve subjects flew 15 two-minute, air-to-ground missions under three ambient background conditions -- 5 missions at 3000 foot-Lamberts ft-l 5 missions at 2000 ft-L and 5 at 0.001 ft-L. During a given mission, the subject performed an information call out task primary and a compensatory tracking task secondary . Findings from this study indicate that within the range of symbology sizes used, no significant differences in performance were noted. Subjects responded rapidly and accurately, regardless of the symbology size used. Keywords Attack bombers Human factors engineering Head-up display symbology Operator performance Luminance.
- Electrooptical and Optoelectronic Devices
- Human Factors Engineering and Man Machine Systems