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Betty "Tack" Blake, 91, holds a model of a P-51 Mustang, her favorite aircraft to fly, in front of her home in Scottsdale, Ariz. Blake joined the first class of WAFs (later named Women Airforce Service Pilots). During World War II, she was assigned as a transport pilot, ferrying 36 different types of aircraft across America. (U.S. Air Force photo by Tech. Sgt. Bennie J. Davis III)