Document Page: First | Prev | Next | All | Image | This Release | Search
File: aaaaf_03.txtUNCLASSIFIED 03 06 AUG 90 RR RR UUUU DOSSL/43063 A. AIRCREWS MAY EXPECT TO HAVE DIFFICULTIES INTERPRETING HUD AND OTHER SIMILARLY LIGHTED DISPLAYS. THERE ARE TWO MAIN REASONS FOR THIS OCCURRENCE: (l) THE DISPLAYS APPEAR TO BE WASHED-OUT BECAUSE PART OF THE LIGHT SPECTRUM IS REMOVED BY THE VISOR, AND (2) ON BRIGHT DAYS, IT IS HARD FOR THE EYES OF AIRCREW MEMBERS TO READJUST TO THE LIGHT AVAILABLE INSIDE THE COCKPIT BECAUSE OF SHADOWS. CROSS-CHECK FROM OUTSIDE TO REFOCUSING INSIDE ON COCKPIT DISPLAYS WAS REPORTED BY THE AIRCREWS AS CAUSING EYE STRAIN AND, IN A FEW CASES, HEADACHES. C. TWENTY-SEVEN PERCENT OF THE AIRCREWS SURVEYED FELT THAT THE BARNES VISOR DID NOT PROVIDE ADEQUATE SUN PROTECTION. AIRCREW MEMBERS WERE UNABLE TO TRACK OTHER AIRCRAFT WITHIN 30 TO 40 DEGREES OF THE SUN. DURING PERIODS OF BRIGHT SUNLIGHTI AIRCREW MEMBERS NOTICED THEY WERE FORCED TO SQUINT THROUGHOUT THE MISSION, WHICH CAUSED EYE STRAIN AND HEADACHES. FOR THOSE AIRCREW MEMBERS THAT REQUIRED ADDED PROTECTION, IT IS AN ACCEPTABLE PROCEDURE TO WEAR THE AIR FORCE-ISSUED SUNGLASSES BENEATH THE VISOR TO RECEIVE INCREASED SUN PROTECTION. 6- IN ADDITIONI THE MAJORITY OF THE AIRCREWS NOTICED A CHANGE IN THE COLOR SPECTRUM, REDS LOOK ORANGE AND GREENS LOOK BLUE. THE AIRCREW MEMBERS DID NOT CONSIDER THIS AS AFFECTING THEIR PERFORMANCE AND IT UNCLASSIFIED
Document Page: First | Prev | Next | All | Image | This Release | Search