The United States Military Aircraft Designation System was first designed in 1919 when the US Army's Aeronautical Division became the United States Army Air Service. Before this aircraft were put into service under their manufacturers designation.[1]
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History [link]
United States Army Air Service 1919 to 1924 [link]
During this period Type Designations used by the United States Army Air Service were allotted, using two or three letters, which were an abbreviation of the aircraft's purpose. Examples include GA for Ground Attack aircraft; NO for Night Observation aircraft and NBS for Night Bombardment, Short Distance aircraft.[2]
Army aviation 1924 to 1962 [link]
From 1924 to 1947 the Air Service, United States Army Air Corps, United States Army Air Forces and United States Air Force used a designation system based on mission category, with each model in a category numbered sequentially.[1] In 1947, the designation system was extensively overhauled, with several categories being dispensed with, and others renamed[3] For instance, the Lockheed P-80 Shooting Star (Pursuit) was redesignated as F-80 (Fighter), while the A-26 medium bomber/attack aircraft was redesignated as the B-26, reusing the designation, the Martin B-26 having retired in the meantime.[4]
US Navy system 1922 to 1962 [link]
From 29 March 1922 to 18 September 1962 the United States Navy (including United States Marine Corps and United States Coast Guard) used a completely separate designation system, based on both mission and manufacturer.[4]
Tri-service system (Air Force/Navy/Army) 1962 to date [link]
Since 18 September 1962 a joint system of mission-based designations has been used, with most of these restarting from 1.[5] Various previously-designated models from the pre-1962 Army-Air Force system (such as the F-111) were not redesignated.[6]
All in-use USN/USMC aircraft from the pre-1962 system were redesignated within the new system. An attempt was made to retain the original Type Sequence numbers for as many aircraft as possible. Thus, the F2H Banshee became the F-2, the F4H Phantom II became the F-4 and the F8U Crusader became the F-8.[6]
In the US Air Force, these designations are commonly referred to as "Model Design Series" or MDS. In the US Navy, US Marine Corps and US Coast Guard, they are referred to as Type/Model/Series or T/M/S.
Individual system pages [link]
- 1924 United States Army Air Service aircraft designation system also applied to aircraft of the United States Army Air Corps, United States Army Air Forces and United States Air Force
- 1956 United States Army Air Forces aircraft designation system
- United States Department of Defense Aerospace Vehicle Designations
See also [link]
References [link]
- ^ a b Angelucci, 1987. p. 9.
- ^ Danby 1977, pp. 10–11
- ^ Danby 1977, pp. 9–10
- ^ a b Angelucci, 1987. p. 10.
- ^ Angelucci, 1987. p. 11.
- ^ a b Danby 1976, p. 9
Bibliography [link]
- Angelucci, Enzo (1987). The American Fighter from 1917 to the present. New York: Orion Books.
- Danby, Peter A. (1976). United States Navy Serials 1941 to 1976. Merseyside Aviation Society. ISBN 0-902420-17-8.
- Danby, Peter A. (1977). United States Air Force Serials 1946 to 1977. Merseyside Aviation Society. ISBN 0-902420-22-4.
External links [link]
A comprehensive explanation can be found at Systems of Designation.
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F4
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4 Of 2
by: They Might Be GiantsUnderneath a big clock
At the corner of 5th Avenue and 22nd Street
I stood and waited for a girl I knew
At the spot where we agreed to meet
It was four minutes of two
At four of two, I stood waiting for the girl
I was four minutes early for the date we had planned
I was planning to say I was in love with her
Just as soon as she showed for a two o'clock date
And the clock said four of two
At four of two, I was staring into space
She was not yet late, according to the clock
I was feeling nervous so I kept looking up
At the clock sticking out of the side of the building
And it still said four of two
At four of two, I began to feel tired
And I rubbed my eyes, and again I checked the time
It seemed as if the sky was growing dark
But I felt reassured when I looked at the clock
And it still said four of two
I lay my head down on the sidewalk
So in case she were coming I would have a better view
But no one was there so I stretched out
And closed my eyes for a second or two
It was four minutes of two
At once I awoke to a futuristic world
There were flying cars and gigantic metal bugs
I'd grown a beard, it was long and white
But I knew that the girl would be coming very soon
For though everything had changed, there was still that clock