HFL also rebuilds aircraft to airworthy condition for other operators such as Hawker Hunter Aviation and Northern Lights, the Canadian operator, with whom they have been closely involved. Northern Lights have benefited greatly from HFL's expertise in overhauling and operating the Hunter resulting in a number of joint projects.
    The organisation's aircraft fly mostly during the summer months but this can change depending on the requirements of the aircraft owners. HFL's aircraft participate in many air shows during the summer and recently a two-ship display sequence was devised which was flown at Elvington and Duxford in 2007.
   HFL has celebrated a number of anniversaries connected with the Hunter. These include the 50th anniversary of Neville Duke's speed record, the 50th anniversary of the Hunter's entry into RAF service and the 50th anniversary of the Exeter based FGA Mk 9 XE601's first flight. The most recent celebration was in April 2008 when HFL marked the 50th anniversary of the first flight of another Exeter based aircraft, TMk 7 XL573. This was a special event for HFL because Duncan Simpson, the former Dunsfold Chief Test Pilot who had made the first flight on the aircraft, visited Exeter for the occasion.
    The people behind the name, under Chief Engineer John Sparks, are a mixture of former RAF and RN technicians, together with civilian volunteers whose enthusiasm for helping maintain the aircraft helps make the operation work. The pilots are also a mixture of former RAF and RN officers as well as some current Service pilots. One of the pilots, Brian Grant, has the distinction of having flown the most Hunter hours in the world; over 8,000.
    The Hunter fleet of airworthy aircraft consists of:
    Hunter PRMk 11 WT723. First flown on 11 February 1955 as a Mk 4 by Duncan Simpson it served with No.14 Sqn at RAF Odiham and Oldenberg before conversion to GAMk 11 standard in the early 1960s to serve with 764 NAS (Naval Air Squadron) at RNAS (Royal Naval Air Station) Lossiemouth. Later it was converted to PRMk 11 standard and served for fifteen years with the FRADU (Fleet Requirements and Air Direction Unit) until its retirement to RNAS Culdrose on 23 May 1993. In 1996 it was sold on the civilian market, registered G-PRII, and came to Exeter.
    Hunter TMk 8B WV322. First flown on 1 June 1955 as a Mk 4, again by Duncan, it served with Nos 43 and 92 Sqns RAF. In 1958 it was converted to a two-seat TMk8 for the Royal Navy to serve with 764 NAS at RNAS Lossiemouth. To fulfil a requirement for Buccaneer training it was converted to TMk 8B standard and transferred to the RAF to serve with 208 Sqn and 237 OCU (Operational Conversion Unit) whose markings are carried today. The aircraft was sold in November 2000, registered G-BZSE and based at Exeter.
    Hunter FGAMk 9 XE601. First flown on 2 May 1956 as a Mk 6 by Frank Bullen it was converted to FGAMk 9 standard in 1965 and flew with 'A' Squadron, A&AEE. Later it chased target drones at Llanbedr, was withdrawn from flying in 2000, joined the Boscombe Down Museum, was sold in 2004, transported to Exeter, purchased by Skyblue Aviation and registered as G-ETPS.
    Hunter GAMk 11 XE685. First flown as an FMk 4 on 30 June 1955 by Duncan Simpson it served with 93 and 98 Sqns in the 2 TAF (Tactical Air Force) in Germany at Jever. In 1963 it was converted to GAMk 11 standard and served with 764 NAS at RNAS Lossiemouth, the FRADU at Yeovilton and flew with the 'Blue Herons' aerobatic team. It was retired in 1994, bought by Barry Pover, registered G-GAII and flown to Exeter.
    Hunter FMk 6 XF515. First flown on 24 May 1956 it served with 247 and 43 Sqns and subsequently, after modification to 6A standard (brake 'chute and 230 gal drop tanks), went to the TWU (Tactical Weapons Unit) at RAF Brawdy until retirement in the 1980s. After a period at RAF Scampton as a ground instructional airframe it was sold, registered as G-KAXF and arrived at Exeter in 2007.
    Hunter TMk 7 XL600. First flown by Duncan Simpson on 7 October 1958, it served with 65 Sqn at RAF Duxford, 111 Sqn at RAF Wattisham, 4FTS (Flying Training School) at RAF Valley, 237 OCU at RAF Honington and finally was with the RAF Laarbruch Station Flight, retiring in December 1983. Via the TMTS at RAF Scampton and RNAS Fleetlands it was sold in 1992, registered G-VETA and based at Exeter.
    Hunter TMk 7 XL573. First flown by Duncan Simpson on 17 April 1978, it served with the DFLS (Day Fighter Leader School) at RAF West Raynham, 229 OCU at RAF Chivenor, 4 FTS at RAF Valley, 237 OCU and 12 Sqn at RAF Honington and RAF Lossiemouth, and finally 573 Sqn at Lossie'. It was sold from storage at RAF Shawbury to Barry Pover, registered G-BVGH, and based at Exeter.
    Hunter Mk 58A (Swiss) J-4104. Built as Mk 4 XF947 and delivered to the RAF in April 1956, it served with 3 Sqn at RAF Geilenkirchen, 229 OCU at RAF Chivenor before purchase by HSA for conversion to Mk 58A for the Swiss Air Force with whom it served until retirement in 1994 with only 1659 hours flying hours. It was bought by Jonathon Whaley, registered G-PSST and based at Exeter.
    Two further Hunters are being restored by HFL at Exeter:
    Hunter TMk 8M XL602. First flown on 18 November 1958 as a TMk 8 by....Duncan Simpson on 18 November 1958 it served with 764, 738 and 759 NASs at RNAS Lossiemouth. In 1977/8 it was converted at Brough to incorporate the Blue Fox radar, HUD and other avionics for  Sea Harrier nav-attack system development at Dunsfold. Later it served at RNAS Yeovilton as a Sea Harrier systems trainer and with the FRADU before being sold and registered G-BWFT.
    Hunter TMk 7 XL612. First flown on 12 December 1958 by Frank Bullen it served with 402 Sqn at Sylt (Germany), 1417 Flt at RAF Khormaksar (Aden), 8 Sqn, RAE Bedford and the ETPS at Boscombe Down. Retired into storage in 2001 the aircraft was moved to Exeter in 2004.