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Folland Fo.144 Gnat
 Gnat Trainer (nearest), Farnborough, 1959
The OR.946 flight instrumentation occupied space on the instrument panel than in the earlier Gnat by the deletion of the gun-sight and bullet-proof windscreen framing. OR.946 concentrates all essential flight information on two display units occupying the entire centre of the panel. On the left is the roller-blind F.4 attitude indicator, which takes the place of the normal artificial horizon, and provides a non-toppling reference in all flight conditions, while on the right is the Mk.1 display unit for TACAN and other navigational equipment.
Following the finalisation of the design, a contract for fourteen development aircraft to spec‑ T.185P was placed 7 January 1958, and the first prototype Fo.144 Gnat trainer made its initial flight in the hands of Sqdn. Ldr. E. A. Termant on August 31, 1959from Chilbolton airfield. The first eight of these aircraft were mainly employed for performance testing and development of the various systems, including improved longitudinal control. The Ministry did not at first place a production order as they were concerned about the size and ability of the company to take on a large order. Following the take-over of Folland by Hawker Siddeley Aviation (becoming the Hamble division), after successful evaluation by the various official bodies concerned, a production order was placed in July 1960 for thirty aircraft for use as advanced trainers, and an additional twenty were ordered a year later. A further order for forty‑one followed in March, 1962. These were being turned out at the requested rate of four per month. The last Gnat T.1 for the RAF was delivered in May 1965.The Gnat trainer was then being offered on the overseas sales market.
Yugoslavia ordered two Gnat F.1s for evaluation; the first aircraft flew on 7 June 1958 and both were delivered to Yugoslavia by rail. The aircraft were flown by the flight test centre but no further aircraft were ordered. One aircraft was destroyed in a crash in October 1958 while the other is preserved and on display in Serbia.
Contracts for 30, 20 and 41 aircraft were awarded in February 1960, July 1961 and March 1962 respectively.
The last production Gnat T.Mk 1 flew on 9 April 1965 and was delivered to the RAF on 14 May, in the all-red scheme of the Red Arrows team. The Central Flying School, then at Little Rissington, first introduced the type in February 1962 but the major operator was No. 4 Flying Training School at Valley, which took its first aircraft on strength in November 1962 and which, in 1964, introduced the Gnat to the formation aerobatic scene, operating five all-yellow Gnats known as the Yellowjacks.
 The team reformed as the Red Arrows in 1965, under the control of the Central Flying School, and its Gnats were withdrawn finally at the end of the 1979 display season, to be replaced in 1980 by the British Aerospace Hawk T.Mk 1. No. 4 FTS retired its Gnats on 24 November 1978.
Once pilots graduated from basic training on the BAC Jet Provost and gained their wings they were selected for one of three streams: fast jet, multi-engined, or helicopter. Those selected for fast jets were posted to RAF Valley for advanced training on the Gnat T.1, typically 70 hours of flying. Students would then move on to operational training using the Hawker Hunter, followed by a posting to an operational conversion unit for the type of aircraft to be flown.
 Gnat T.1 XS105 60 4 FTS
Following the introduction of the Hawker Siddeley Hawk into the training role as a replacement the Gnats were withdrawn from service. The largest operator 4 FTS retired its last Gnat in November 1978. Most of the retired Gnats were delivered to No. 1 School of Technical Training at RAF Halton and other training establishments to be used as ground training airframes. When the RAF had no need for the Gnats as training airframes they were sold off. Many were bought by private operators and are still flying in 2014.
Including licence built models, India received 238 plus 79 similar Ajeets. The first 13 aircraft for the Indian Air Force (IAF) were assembled at Hamble-le-Rice, they were followed by partly completed aircraft and then sub-assemblies as Hindustan Aircraft slowly took over first assembly, and then production of the aircraft. The first flight of an Indian Air Force Gnat was in the United Kingdom on 11 January 1958, it was delivered to India in the hold of a C-119, and accepted by the Air Force on 30 January 1958. The first Gnat squadron was the No. 23 (Cheetah), which converted from Vampire FB.52 on 18 March 1960 using six Folland-built Gnats. The first aircraft built from Indian-built parts first flew in May 1962. The last Indian-built Gnat F.1 was delivered on 31 January 1974.
 IAF Folland Gnat “Sabre Slayers”
The Gnat is credited by many independent and Indian sources as having shot down seven Pakistani Canadair Sabres in the 1965 war, while two Gnats were downed by PAF fighters. During the initial phase of the 1965 war, an IAF Gnat, piloted by Squadron Leader Brij Pal Singh Sikand, mistakenly landed at an abandoned Pakistani airstrip at Pasrur and was captured by the PAF. Two Lockheed F-104 Starfighters claimed to have forced the Gnat down. This Gnat is displayed as a war trophy in the Pakistan Air Force Museum, Karachi. After the ceasefire, one Pakistani Cessna O-1 was shot down on 16 December 1965 by a Gnat.
 Flying Officer Nirmal Jit Singh Sekhon and his Gnat
The Gnats were used again by India in the Indo-Pakistani War of 1971 against Pakistan. The most notable action was the Battle of Boyra where the first dogfights over East Pakistan (Bangladesh) took place. The Indian Air Force (IAF) Gnats downed two PAF Canadair Sabres in minutes and badly damaged one. The Pakistan Air Force claims that one Gnat was shot down, which was proved incorrect. Another notable dogfight involving a Gnat was over Srinagar airfield where a lone Indian pilot held out against six Sabres, scoring hits on two of the Sabres in the process, before being shot down. Gnat pilot Nirmal Jit Singh Sekhon was posthumously honoured with the Param Vir Chakra (India’s highest gallantry award), becoming the only member of the IAF to be given the award.
 By the end of 1971, the Gnat proved to be a frustrating opponent for the larger, heavier and older Sabre. The Gnat was referred to as a “Sabre Slayer” by the IAF since most of its combat “kills” during the two wars were against Sabres. The Canadair Sabre Mk 6 was widely regarded as the best dogfighter of its era. Tactics called for Gnats taking on the Sabres in the vertical arena, where the Sabres were at a disadvantage. As the Gnat was lightweight and compact in shape, it was hard to see, especially at the low levels where most dogfights took place. Apart from air defence operations, they performed multiple roles in the Bangladesh Liberation War, including anti-shipping operations, ground attack, bomber/transport escort and close air support.
 Folland Gnat – Jawaharlal Nehru Museum
The IAF was impressed by the Gnat’s performance in the two wars, but the aircraft had problems including hydraulics and unreliable control systems. To address these issues, the IAF issued a requirement for an improved “Gnat II” in 1972, at first specifying that the new version was to be optimized as an interceptor, but then expanding the specification to include the ground-attack role. Over 175 of the Hindustan Aeronautics Limited-built licensed version, the Ajeet (“Unconquerable”), were produced in Bangalore. Several Gnats remain in use in private hands. Some IAF Gnats, one of which had participated in the 1971 war in East Pakistan (present day Bangladesh), were presented to the Bangladesh Air Force.
 E2016 Folland Gnat Indian Air Force
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