WT722 was built at Kingston-upon-Thames by Hawker Aircraft Ltd, as part of a contract to built 85 Hunter F.4 aeroplanes for the Royal Air Force. It took its first flight on 4th February 1955, flown by Hugh Merewether, and it was handed over to its new owners three months later. The aeroplane was initially issued to RAF 54(F) Sqn at RAF Odiham, and also later saw service with RAF 26(F) Sqn based at RAF Oldenburg in West Germany as aeroplane 'S'. It was returned to the UK during May 1957, as it arrived at 5MU (Maintenance Unit) Kemble for maintenance and storage.
The aeroplane was later transferred to the Royal Navy with prospects of further RAF service looking unlikely.

WT722 was selected for conversion to T.8 specification, and the Royal Navy contracted Hawker Aircraft Ltd to carry out the work, who in turn sub-contracted this process to Armstrong-Whitworth at Coventry. WT722 was completed as a two seat Hunter in the summer of 1959, arriving at RNAS Lossiemouth on 1st July.
Following preparation for military Fleet Air Arm service, the aeroplane was issued to 764NAS (Navy Air Squadron) at Lossiemouth, adopting the identity '702' in March 1960. As with many of the Fleet Air Arm's Hunters it suffered the occasional bird strike, and also had some problems with engine vibrations. Its second spell with 764NAS, following a period of maintenance between March and May 1962, was even more eventful - as it was sent to Hawker Aircraft Ltd at Dunsfold for investigation and repair in April 1963, following a flight where 9G was inadvertently pulled on the airframe. Following the completion of the repairs, WT722 arrived back at 764NAS in March 1965 via Shorts Brothers at Belfast, and was re-issued with the identity '689'. Two years later on 9th June 1967, the aeroplane was transferred to RNAS Brawdy's 759NAS, where it was operated on training duties as '807' with a 'BY' shore code applied on the tail fin. It remained here for the next two years.

On 2nd December 1969 WT722 was ferried to 5MU for maintenance and storage, but within six months it had been ferried to RNAS Yeovilton where it was issued to the ADTU (Air Direction Training Unit) as aeroplane '742'. Its paint was refinished at the end of 1970, returning to ADTU service in February 1971, and was later fitted with a Harley light at RNAS Lee-on-Solent during May 1972.
On 1st December 1972, WT722 became a member of the FRADTU (Fleet Requirements and Air Direction Training Unit) fleet, following the merger of the ADTU with the Fleet Requirements Unit (FRU). It shed its '742' identity in favour of '872' and was operated as such until another refinish at Kemble between December 1974 and February 1975. On its return to FRADU (the 'Training' part had been dropped from the title) service, WT722 adopted the call-sign '873' and was operated on military taskings, aside from short spells receiving maintenance and paint re-finishes until January 1982, when it was grounded for six months receiving an overhaul at Kemble.
On 2nd September 1982, WT722 returned as '878', an identity it would keep for the remainder of its FRADU career. A major airframe inspection, carried out by Lovaux at Hurn (now Bournemouth Airport) occurred between April and October 1986, where it received its dark sea grey paint re-finish which was gradually being adopted throughout the fleet. The aeroplane was placed in store at RAF Shawbury for 15 months (September 1990-December 1991) and was given a thorough overhaul by FLS Aerospace/Lovaux at Hurn between February 1992 and March 1993, which assured its long-term future as a flying aeroplane with FRADU. However, due to the earlier than expected retirement of the Hunter from FRADU service, WT722 only remained in use for a further two years, being retired in April 1995 and flown to RAF Shawbury for storage, with an impressive tally of over 9,500 flying hours and over 12,500 landings in its logbook!

WT722's civilian life

Entered into the July 1995 Phillips auction by the MoD, WT722 was hammered down to Barry Pover and Barry Pearson. Barry Pover and engineers of his Classic Jet Aircraft Company prepared the aeroplane for a one-off ferry flight to Exeter Airport, arriving there in February 1996 under the civilian registration of G-BWGN. The aeroplane received a full permit to fly but was only flown occasionally for the next two years, and was placed in store in 1998. Ownership of the aeroplane was transferred outright to Barry Pearson, and over the next few years a share scheme was advertised to get the aeroplane restored to flying again. Restoration work was begun at Exeter, but progress was slow due to other projects taking priority (See XF300 and WV256) the aeroplane was later placed in store.

During 2006, WT722 was moved by road to Kemble where it was placed under the care of Delta Jets. Air Atlantique now owns the aeroplane and Delta Jets began a restoration programme on its behalf during the summer of 2007 to restore WT722 to flying condition, but progress eventually ground to a halt. During May 2010, it was moved to Coventry Airport by Historic Aero Services, where it will become an static exhibit in the new Airbase museum currently being formed by Air Atlantique. The process of restoring it to airworthy condition may be restarted in due course.