page_title: List of military aircraft of the United States
section_title: Army, 1956–1962
hierarchical_section_title: List of military aircraft of the United States / Army, 1956–1962
caption_attribution_description: A U.S. Army Grumman OV-1A Mohawk (s/n 59-2607) taking off. This aircraft crashed on 16 June 1965.
context_page_description: This list of military aircraft of the United States includes prototype, pre-production, and operational types. Prototypes are normally prefixed with "X" and are often unnamed, while pre-production models are usually prefixed with "Y".
  The United States military employs a designation and naming system to provide identifications to all aircraft types. Until 1962, the United States Army, United States Air Force, and United States Navy all maintained separate systems. In September 1962, these were unified into a single system heavily reflecting the Air Force method. For more complete information on the workings of this system, refer to United States Department of Defense Aerospace Vehicle Designations.
  This list does not include aircraft used by the U.S. military services prior to the establishment of a numerical designation system. It also does not include aircraft designated under the pre-1962 United States Navy designation system.
context_section_description: In 1956, the U.S. Army adopted a new, and relatively simple, designation system for its aviation assets. Aircraft were divided into three different types – 'A' for fixed-wing aircraft, 'H' for helicopters, or 'V' for V/STOL aircraft, and then were given a mission modifier, which, unlike the USAF system, came after the type code: 'C' for transports, 'O' for observation and reconnaissance aircraft, 'U' for utility types, and 'Z' for experimental aircraft. Aircraft types designated in this system were numbered sequentially.
caption: AO-1 Mohawk
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