Just for nitpicking purposes, but perhaps someone here (like I did) will learn something new:
Quote:
Buzz Numbers
In the years immediately following World War 2, many USAAF/USAF aircraft used markings that would make it possible to identify low-flying aircraft from the ground. This was intended to discourage the unsafe practice of pilots of high-performance aircraft making low passes (colloquially known as "buzzing") over ground points. Consequently, these numbers came to be known as buzz numbers.
The system used two letters and three numbers, painted as large as practically feasible on each side of the fuselage and on the underside of the left wing. The two letter code identified the type and model of the aircraft, and the three digits consisted of the last three numbers of the serial number. For example, all fighters were identified by the letter P (later changed to F), and the second letter identified the fighter type. For example, the buzz number code for the F-86 Sabre was FU, for the F-100 Super Sabre it was FW. The buzz number for F-100A 53-1551 was FW-551, the buzz number for F-86D 53-1020 was FU-020.
On occasion, two planes of the same type and model would have the same last three digits in their serial numbers. When this happened, the two aircraft were distinguished by adding the suffix letter A to the buzz number of the later aircraft, preceded by a dash.
The system was in wide use throughout the 1950s, but was gradually phased out during the 1960s. The last use of buzz numbers was in 1971.
Shay
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