A third (and final) series of Bureau Numbers was started with 00001 (using 5 digits from To avoid confusion with aircraft having late numbers in the original series that were still in Rearmament program that it was found necessary to terminate the second series at 7303 in order In 1940, so many aircraft were being ordered as a result of President Franklin Roosevelt's So-called second series of Bureau Numbers. Number to five digits, a new sequence of numbers was started at 0001. The original sequence reached 9999 in 1935, and rather than expand the serial The A-prefix wasĭeleted from the numbers at the end of Fiscal Year 1930 (after OJ2, A-9204). Of Aeronautics after that organization was established in 1921. In later years, they came toīe known as Bureau Numbers (BuNos), since they were assigned by the Navy's Bureau These numbers were initially termed "building numbers", but On May 19, 1917, the prefix letters were officially abandoned and replaced by the Retained for a short time, but no longer had any relationship to the serial numbers. Was taken as a convenient starting point. Sequential numerical list, irrespective of type. In May of 1917, at the time of US entry into WW 1, this was changed to a Serials was assigned to each type/subtype classification. Original scheme were redesignated and reserialed. All of the surviving aircraft acquired under the Letter was used to designate the subtype-for example AH was a hydro airplane, AB was aįlying boat, and AX was an amphibian. Heavier Than Air, B for Free Balloon, C for Dirigible, and D for Kite Balloon. Replaced by a two-letter type and subtype classification scheme. In March of 1914, this manufacturer-based designation system was abandoned and was The letter D was assigned to Burgess and Curtis (no relation), and E was assigned to Curtiss Given another letter, C, to distinguish its flying boats from its pontoon seaplanes, For example, the first Curtiss-built NavyĪirplane was serialed A-1, the second A-2, etc.Īccommodate different types of airplanes obtained from the same manufacturer-Curtiss had to be Sequence of procurement from each manufacturer. The letter was followed by a number to show the The first part was a letter which designated the manufacturer-Ī for Curtiss, B for Wright, etc. Separate sequence of numbers for each manufacturer. Originally, the US Navy assigned serial numbers to its airplanes sequentially by manufacturer, a The United States Navy acquired its first aircraft in 1911, a Curtiss Triad pusher floatplane. US Navy and US Marine Corps Military Aircraft Serial Numbers and Bureau Numbers-1911 to Present US Navy and US Marine Corps Military Aircraft Serial Numbers and Bureau Numbers-1911 to Present
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