United Kingdom military aircraft serials


United Kingdom military aircraft serials

Infobox Aviation
name=United Kingdom military aircraft serials


caption=XR220 a BAC TSR-2

In the United Kingdom to identify individual aircraft, all military aircraft are allocated and display a serial number. A unified serial number system, maintained by the Air Ministry, and its successor the Ministry of Defence, is used for aircraft operated by the Royal Air Force, Fleet Air Arm and Army Air Corps. Military aircraft operated by government agencies and civilian contractors (for example QinetiQ) are also assigned serials from this system.

When the Royal Flying Corps was formed in 1912 aircraft were identified by a letter/number system related to the manufacturer. Before the end of the first year a unified serial number system was introduced for both Army and Naval aircraft.

The serials are allocated when the contract is placed with the manufacturer or supplier.

1 to 10000

This first series ran from 1 to 10000 with blocks allocated to each service. The first serial was allocated to a Short S.34 for the Royal Naval Air Service.

A1 to Z9999

By 1916 the first sequence had reached 10000 (allocated to a Royal Aircraft Factory BE.2 and it was decided to start an alpha-numeric system from A1 (allocated to a Royal Aircraft Factory BE.2d) to A9999 then starting again at B1. The letters A, B, C, D, E, F, H, and J were allocated to the Royal Flying Corps and N1 to N9999 and S1 to S9999 to the Royal Naval Air Service. When the sequence reached the prefix K it was decided to start at K1000 for all subsequent letters instead of K1.

Although the N and S series had earlier been used by RNAS aircraft, the sequence N1000 to N9999 was again used by the Air Ministry for both RAF and RN aircraft. The 'Naval' S sequence had reached only S1865, a Fairey IIIF, but when R9999 was reached in 1939, the next serial allocations did not run on from that point, but instead commenced at T1000.

From 1937 not all aircraft serials were allocated to hide the true number of aircraft in production and service. Gaps in the serial number sequence were referred to as "blackout blocks". The first example of this practice was an early 1937 order for 200 Avro Manchester bombers which were allotted the serials L7276-7325, L7373-7402, L7415-7434, L7453-7497, L7515-7549 and L7565-7584, covering a range of 309 possible serial numbers, and thus possibly leading an enemy to over-estimate British military aircraft strength.

AA100 to ZZ999

By 1940 the serial Z9978 had been allocated to a Bristol Blenheim and it was decided to restart the sequence with a two-letter prefix, starting at AA100. This sequence is still in use today.

Some letters have not been used to avoid confusion, C confusion with G, I confusion with 1, O and Q confusion with 0, U confusion with V and Y confusion with X.

During the Second World War RAF aircraft carrying secret equipment or that were in themselves secret had "/G" suffix added to the end of the serial, [http://www.airliners.net/photo/UK---Navy/De-Havilland-Sea/1312997/L/&width=1200&height=812&sok=WHERE__(reg_%3D_%27LZ551%27)_&sort=_order_by_photo_id_DESC_&photo_nr=1&prev_id=&next_id=1188987] the "G" signifying "Guard", denoting that the aircraft was to have an armed guard at all times while on the ground (for example LZ548/G, the prototype de Havilland Vampire, or ML926/G, a de Havilland Mosquito XVI experimentally fitted with H2S radar).

As of 2008, serials allocations have reached the ZKnnn range. However, in recent years, serials have increasingly been allocated out-of-sequence. For example the first RAF C-17 Globemaster was given the serial ZZ171 in 2001, and a batch of Britten-Norman Defenders for the AAC were given serials in the ZGnnn range in 2003 (the last ZG serial being allocated more than 14 years previously). Also, some recent serials allocations have had a numeric part in the previously-unused 001 to 099 range.

Maintenance serials

Distinct serial numbering systems are used to identify non-flying airframes used for ground training. The RAF have used a numeric sequence with an 'M' suffix denoting the 'Maintenance' series. Known allocations, made between 1921 and 2000, ranged from 540M to 9344M, when this sequence was terminated. The main series of single letter serials did not use 'M' to avoid confusion with the suffix 'M'. The Fleet Air Arm use an 'A'-prefixed sequence (eg. A2606) and the Army Air Corps issue 'TAD' numbers to their instructional airframes (eg. TAD015).

Display

The serial numbers are normally worn in four places on each aircraft, on either side of the aircraft on a vertical surface and on the underside of each wing. The underwing serials have not been displayed since the 1960s. The serial on each side is usually on the rear fuselage, but this can vary depending on the aircraft type, for instance the delta winged Gloster Javelin had the serial on the forward engine nacelle, and the Avro Vulcan had the serial on the tail. Helicopters have only carried serials on each side, either on the tailboom or rear fuselage.

ee also

* British military aircraft designation systems
* Royal Air Force roundels
* United States military aircraft serials

External links

* [http://www.ukserials.com UK Serials Resource Centre]

References

* "Royal Air Force Aircraft L1000-N9999", J.J.Halley, Air-Britain, 1993, ISBN 0-85130-208-4 and other similar volumes covering all serial allocations from J1000 to XZ999.
* "British Military Aircraft and Markings" Second Edition, British Aviation Research Group, 1983, ISBN 0 906339 04 9
* "British Military Aircraft Serials 1912-1969", Bruce Robertson, Ian Allan, 1969, SBN 7110-0091-3
* "Aircraft Markings of the World 1912-1967", Bruce Robertson, Harleyford Publications, 1967.


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