The Praga E.114 was designed by Jaroslav Slechta in Czechoslovakia and initially built by CKD Praga, where it became known as the Air Baby.

The brothers, Leo Austin Walsh was born in Bradford, Yorkshire, in 1881 the family emigrating to Auckland in 1883. His brother, Vivian Claude Walsh was born in New Zealand in 1888.

The Krishak was manufactured by Hindustan Aeronautics Ltd of Bangalore as the HAOP-27 air-observation post and liaison monoplane for the Indian Air Force to replace the Auster AOP-9.

The 304 MS Shark is one of a range of high performance gliders designed in Germany and built by HpH Ltd in the Czech Republic and is a single-seater of composite construction available in the 15-metre Class up to the two-seat 20-metre Open Class and was developed from the German

The HT-2 was designed by Dr V M Ghatge, Chief Designers of Hindustan Aircraft Ltd at Bangalore, India.

In 1916 the Societe Anonyme de Appareils d’Aviation Hanriot built a fighter for operations in World War I, this aircraft, the HD-1, being designed by Emile Dupont and it was the company’s first fighter design.

The Heinkel He 114 was a two-seat twin float shipboard reconnaissance seaplane built for the German Navy.

The lack of potent fighter aircraft was evident in the United Kingdom in 1930 when, during exercises, the Hawker Hart bombers of the RAF were too fast for the then RAF fighter aircraft, the Armstrong Whitworth Siskin, to intercept.

The Hs 126 was designed by Henschel Flugwerke AG at Schonefeld as an Army co-operation aircraft and was eventually used in the multi-role tactical aircraft role.

The Hawker Sea Fury was the last piston-engine fighter-bomber to be manufactured in quantity in the United Kingdom.

The Hs 129 was one of a number of designs put forward to the German State Ministry of Aviation in 1937 for a dedicated close air support aircraft, becoming known as the “winged can-opener.

After many years of research into vertical take-off and landing (VTOL), on 21 October 1960 Hawker Siddeley flew, tethered, the P.1127 (XP831), a single-seat fighter designed around the Bristol Siddeley Pegasus engine which had four rotating exhaust nozzles to provide vertical and horizontal flight.

In 1934 the British Air Ministry foresaw the problems that may later occur in Europe and decided upon a major expansion programme for its military services, one of the fruits of this plan being the Hawker Hind light bomber, designed as an interim replacement for the Hawker Hart, which had

Following the cessation of hostilities in World War II, Hawker initiated design of a private project single-seat fighter (known as the P-1067) powered by a 6,500 lbst Rolls Royce AJ65 axial flow turbojet fitted with two 30 mm Aden cannon.

In 1954 Hawker chose to develop a two-seat variant of the Hunter, the prototype (XJ615) flying for the first time on 8 June 1955, a production order being placed for 55 aircraft with the designation Hunter T.7.

The Hurricane was designed by Sydney Camm to Air Ministry specification F36/34, the prototype (K5083) built at Kingston making its first flight on 6 November 1935, the first production aircraft flying on 12 October 1937, and the first unit to receive the aircraft being No 111 squadron at Northolt.

In 1950 the Australian Government expressed interest in obtaining a new variant of the Hawker P.1052 single seat fighter then under test at the Hawker facility at Kingston.

The Tempest was a development of the Typhoon designed by a team lead by Sydney Camm, being a logical development of the earlier aircraft with the Napier Sabre IV engine

The Hawker Typhoon was designed by Sydney Camm as an interceptor fighter to replace the Hurricane.

The Halberstadter Flugzeugwerke, formerly the German office of the Bristol & Colonial Aeroplane Company, produced a series of fighter aircraft for the German Airforce prior to and during World War I.

One of the most important bombers of World War II, a total of 6,179 Handley Page Halifax’s had been built by time the production ended, having been built by Handley Page (1,592), English Electric (2,145), London Aircraft Production Group – LAPG (710); Rootes Securities (1,071) and Fairey Aviation (662).

The O/400 (Handley Page HP.12) was a development of the O/100, which was built to the requirements of the British Admiralty

The prototype of the HP.80 Victor (WB771) made its first flight on 24 December 1952 but the programme suffered a setback when, on 14 July 1954, during a low-level run at Cranfield the ‘structural rigidity of the tail was slightly reduced by a minor fatigue failure’ causing the tailplane to

Prior to World War I Hannoversche Waggonfabric AG was known for building railway rolling stock for the various railway in Europe, and in 1915 it was directed by the German Government to commence production of aeroplanes for the armed services.

The Baby Bullet high-performance racing monoplane was one of a range of light aircraft designed by Edward Heath, including the Heath Parasol.

The Heath Parasol was designed in 1925 in Chicago, USA, by Edward B Heath as an ultra-light aircraft suitable for amateur construction.

Whilst working in France with Avions Pierre Robin, Mr M Heintz, a professional aeronautical engineer, participated in the design of several light aircraft.

The Courier utility aircraft was built for the Helio Aircraft Corp at the Pittsburg, Kansas, facility of Mid-States Manufacturing Corp.

The CB-1 is a two-seat light aerobatic biplane produced in kit form for the American Hatz Association of Gurnea, Illinois.

Developed by Martin Hollmann of Orlando, Florida, a senior design engineer in the aerospace industry, the HA-2M Sportster [also known as the Hollmann Sportster] was claimed to be the first two-seat gyroplane designed for the homebuilder who has access to a minimum of power tools.

The Series 600 was introduced to the market in 1971 and was powered by two 3,750 lbst Viper 600 series engines with a two-stage turbine.

The de Havilland DH-125 series was intended as a jet-engined replacement for the de Havilland DH-104 Dove executive aircraft, the project being announced in February 1961.

Over the years development of the series continued, one variant being the Series 900XP which was a model which combined the airframe, operating weights and systems of the 850XP model, including the winglets, but which was fitted with the new Honeywell TFE731-50R turbofan which provided a five percent reduction in

The Hastings was designed as a replacement for the Avro York transport in RAF service, and the prototype (TE580) made its first flight at Wittering on 7 May 1946, the second prototype (TE583) being flown for the first time on 30 December that year.

Once the Hawker 800 series was placed in production British Aerospace looked at a further development of the type and, despite being the most capable model of all the various models, only 52 examples were completed.

The prototype of the Handley Page W series of commercial airliners (G-EAPJ – c/n W8-1) was first flown on 2 December 1919.

The Royal Aero club of Great Britain in 1924 organised a competition amongst the designers of the time to build a light aircraft suitable for weekend pilots.

The Harbin Y-12 was a development of the piston engined C-11 built in some numbers by the State Aircraft Factory of the Chinese People’s Republic at Shenyang.

During the early 1960s the RAF issued a requirement for a medium tactical freighter, and the Avro design team developed a variant of the Avro 748 (later Hawker Siddeley 748 series 2).

Lawrence Hargrave (1850 - 1915) has been described as an engineer, explorer, astronomer and aeronautical pioneer.