Aircraft by Nation

United States
Navy/Marine Corps (1922)

In 1922, the Navy introduced a designation system that identified the aircraft's manufacturer and mission.  The first letter identified the manufacturer, the next the aircraft's mission.  For example, the Douglas Torpedo aircraft was designated the DT.  The second design by a manufacturer would add a number to the designation...for example Martin's second observation aircraft was the M2O.  This system only lasted one year before the Navy decided that the aircraft's mission was more important than the manufacturer and reversed the  sequence.

At this point, there no aircraft on this site under this designation system.

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