Full FAA Chronology at this link. 19511210: The Kaman K-225, the world’s first turbine-powered helicopter, made its initial flight. The Kaman Aircraft Corporation had developed the K-225 under contract for the U.S. Navy. 19641210: The Airman’s Information Manual (AIM) replaced three basic FAA flight information publications: the Airman’s Guide (see April 1946), the Directory of […]
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