Aircraft
by Nation
United States
Army (1956-1962)
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From 1956 to 1962, the U.S. Army procured its own
aircraft outside of the U.S. Air Force using its own designation
system.
The system used a two character alphabetic code followed
by a model number. The first character designated aircraft (A) or
helicopter (H). The second character denoted the mission...Cargo
(C), Observation (O), or Utility (U).
In 1962, the U.S. Army, Navy and Air Force agreed to
consolidate their designation systems.
