Retired Col. Pete Mapes, a pilot-physician, still uses a typewriter when he sees patients at the Joint Base Andrews, Md., Flight Medicine Clinic, April 7, 2016. Mapes was instrumental to the employment of the Automatic Ground Collision Avoidance System (Auto GCAS) in fighter jets across the Air Force after he discovered an error in the program data while at the Air Force Research Lab at Wright Patterson AFB, Ohio in 2003. The system, which constantly compares the aircraft's speed and position to a digital terrain map and will automatically take control if it detects an imminent ground collision, is credited with saving the lives of four pilots. (U.S. Air Force photo/Master Sgt. Brian Ferguson)
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