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Companies could allocate and re-use the identities as they liked, some ran in sequence from 1 and others used the aircraft manufacturers serial number as part of the marking, for example G-51-200 was a Britten Norman Islander with a manufacturers serial number of 200. [1] Allocations of codes from defunct companies have been reallocated.
Dating a Vintage Sheridan Model C (Streak) 1949 - 1976 (be aware that changes often cannot be pinpointed exactly, so most changes will only be list by year they first appeared) Date stamps on 1964 to 1971 and serial numbers on 1972- 1985 easily pinpoint manufacture dates for these years. This change chronology is most useful for identifying ...
A model/batch number of the form nnnnHmmmm where 'nnnn' is a batch number and 'mmmm' is a model number ('6072H950' for example would be an H950 model). They were also date stamped using an 'F' for instruments manufactured during the first half of the year and an 'S' for those built in the second half, and a 2 digit year code.
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The first part (NN) is the serial number, next the Manufacturer's 2 or 3 letter code, followed by a four digit number that indicates the two-digit month and two-digit year it was manufactured. For example, 123-JOP-0554 means it was Lot 123, made by Joliet Ordnance Plant (JOP) in May 1954.
This nomenclature was introduced in 1978 under Perkins' new engine numbering scheme, where the family type is encoded in each unique serial number. Engines that went out of production prior to 1978 may have been retroactively assigned a family type to expedite parts support (this is the case with the Perkins 4.107).
The Scottish Aviation Bulldog is a British two-seat side-by-side (with optional third seat) training aircraft designed by Beagle Aircraft as the B.125 Bulldog. The prototype Bulldog flew on 19 May 1969 at Shoreham Airport. The first order for the type was for 78 from the Swedish Air Board.
The legal requirement for affixing a serial number to firearms is a relatively recent requirement, and usually applies to firearms manufactured domestically or which are imported. [4] Gun serial numbers are used in gun registration and are usually linked to an owner who is usually required to hold a firearms license . [ 5 ]