|
Pobjoy
Pobjoy Airmotors and Aircraft was a British manufacturer of small aircraft engines. The company was purchased by Short Brothers shortly before the start of World War II, production continuing until the end of the war. History Douglas Rudolf Pobjoy started in the engine business working with Roy Fedden at Cosmos Engineering just after the end of World War I. Cosmos went bankrupt shortly after the war, and its assets were picked up by the Bristol Aeroplane Company, where Fedden would go on to produce a line of extremely successful engines. Pobjoy also spent time in the RAF as an education officer. Here he met Flt. Lt. Nicholas Comper who went on to design the Comper Swift, that would later fly from London to Australia in 9 days 2 hours. Pobjoy partnered with Parnall to develop an engine for the Swift. Although they felt that a cast-block inline engine like the ones being produced by Cirrus and de Havilland would always be less expensive, they nevertheless selected the radial layou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pobjoy Niagara
The Pobjoy Niagara is a British seven-cylinder, air-cooled, radial, aero-engine first produced in 1934. The design ran at higher speeds than conventional engines, and used reduction gearing to lower the speed of the propeller. This led to a noticeable off-centre mounting for the propeller. The Niagara was a popular engine for light and experimental aircraft, well regarded due to its small diameter, smooth operation, low noise and innovative engineering. Variants ;Niagara I :Bore/stroke 77 x 87 mm (3.03 x 3.43 in), swept volume 2,835 cc (173 cu in). Compression 6.25:1, gearing 0.47:1. Normal continuous power 84 hp (63 kW) at 3,200 rpm at sea level. ;Niagara II :Bore/stroke 77 x 87 mm (3.03x3.43 in), swept volume 2,835 cc (173 cu in). Compression 6.0:1, gearing 0.39:1. Normal continuous power 84 hp (63 kW) at 3,200 rpm at sea level. ;Niagara III :Bore/stroke 77 x 87 mm (3.03x3.43 in), swept volume 2,835 cc (173 cu in). Gearing 0.47:1. Normal continuous power 88 hp (66 kW) at 3,3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pobjoy P
The Pobjoy P was a British seven-cylinder, air-cooled, aircraft engine designed by Douglas Rudolf Pobjoy and built by Pobjoy Airmotors. It became the progenitor of the Pobjoy R/ Niagara/Cataract family of small radial engines. A notable feature of the Pobjoy P was the propeller reduction gear which allowed the small engine to operate at more desirable higher speeds. Applications * Comper C.L.A.7 Swift * Parnall Imp The Parnall Imp was an unusual single-engined, two-seat British biplane built in 1927. It had a straight cantilever lower wing which supported the markedly swept upper wing. Only one was built. Design and development The unusual appearance o ... Specifications (Pobjoy P) References {{Pobjoy aeroengines P 1920s aircraft piston engines Aircraft air-cooled radial piston engines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pobjoy R
The Pobjoy R is a British seven-cylinder air-cooled radial aircraft engine designed and built by Pobjoy Airmotors. Introduced in 1926, it was a popular engine for ultralight and small aircraft in the 1930s. A notable feature of the Pobjoy R was the propeller reduction gear which allowed the small engine to operate at more desirable higher speeds. The engine was license produced in Czechoslovakia by Walter Aircraft Engines as the Walter Mira. Retrieved: 27 November 2021 Variants ;Walter Mira R :License produced version of Pobjoy R. ;Walter Mi ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comper Swift
The Comper C.L.A.7 Swift is a British 1930s single-seat sporting aircraft produced by Comper Aircraft Company Ltd of Hooton Park, Cheshire. Design and development In March 1929 Flight Lieutenant Nicholas Comper left the Royal Air Force and formed the Comper Aircraft Company to build an aircraft he had designed, the Comper Swift. He had previously designed and flown three aircraft for the Cranwell Light Aeroplane Club: the C.L.A.2, C.L.A.3 and C.L.A.4. The prototype Swift (registered G-AARX) first flew at Hooton Park in January 1930.Meaden (2003) The aircraft was a small single-seat, braced high-wing monoplane constructed of fabric-covered spruce wood frames.Riding (2003) The first Swift was powered by a 40 hp (30 kW) ABC Scorpion piston engine. After successful tests, seven more aircraft were built in 1930, powered by a 50 hp Salmson A.D.9 radial engine. Trials with Pobjoy P radial engine for use in air racing resulted in all the subsequent aircraft being pow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Aircraft Fleet Shadower
The General Aircraft G.A.L.38 Fleet Shadower was a British long-range patrol aircraft design of the immediate pre-Second World War period. The Fleet Shadower was a highly specialized aircraft intended to follow enemy naval task forces over long times and radio back position information. However, the concept produced an ungainly and ultimately unsuccessful type. The Airspeed Fleet Shadower, built to the same requirement and of broadly similar appearance, also did not progress past the prototype stage. Design and development The G.A.L.38 Fleet Shadower and the Airspeed A.S.39 Fleet Shadower were produced to meet Specification S.23/37, which came from the Royal Navy's "Operational Requirement OR.52" for an aircraft that could shadow enemy fleets at night. Three other companies were also involved initially: Percival, Short Brothers and Fairey Aviation. Following evaluation of the designs General Aircraft and Airspeed were contracted to build two prototypes each, General Aircraft con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Aircraft Monospar
The General Aircraft Monospar was a 1930s United Kingdom, British family of touring and utility aircraft built by General Aircraft Ltd (GAL). Design and development In 1929, the Monospar Company Ltd was formed to pursue new techniques of designing cantilever#Aircraft, cantilever wings, based on the work of Switzerland, Swiss engineer Helmuth J. Stieger, who headed the company. Helmuth John Stieger was born in Zurich in 1902, and educated at the Swiss Federal Polytechnic, and then at the Imperial College of Science in London. While working as a designer for William Beardmore and Company, he formed his own ideas about wing design, and evolved an improved method of building and stressing wings, for which he was later granted a British Patent in December 1927. The principle behind this Patent No. 306,220 was that the wing needed only one spar with torsion loads resisted by an efficient system of strong compression struts, with triangulated bracing in the form of thin wires. The des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hooton Park
Royal Air Force Hooton Park or more simply RAF Hooton Park, on the Wirral Peninsula, Cheshire, is a former Royal Air Force station originally built for the Royal Flying Corps in 1917 as a training aerodrome for pilots in the First World War. During the early/mid-1930s, it was one of the two airfields (with Liverpool Speke) handling scheduled services for the Merseyside region. Hooton Park was home to No. 610 (County of Chester) Squadron and, post Second World War, to No. 611 (West Lancashire) and No. 663 (AOP) Squadron. The airfield closed in 1957 after the disbandment of the Royal Auxiliary Air Force, but the three pairs of Belfast Truss hangars erected in 1917 survived the closure. The site was bought by Vauxhall Motors, who built their Vauxhall Ellesmere Port plant there, which today produces the Vauxhall Astra. A small remaining section of the airfield site is now owned and managed by The Hooton Park Trust. The hangars are also home to The Griffin Trust and an aircraft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airspeed Fleet Shadower
The Airspeed AS.39 Fleet Shadower was a British long-range patrol aircraft design that did not go beyond the prototype stage. A similar aircraft, the General Aircraft Fleet Shadower, was also built to the extent of prototypes. While the concept of a fleet shadower had some promise, the resulting designs were soon overtaken by wartime developments in airborne radar. Design and development The Royal Navy envisaged a need (Operational Requirement OR.52) for an aircraft that could shadow enemy fleets at night and the resulting Specification S.23/37 called for a slow-flying low-noise aircraft with a long range, capable of operating from an aircraft carrier's flight deck. The specified performance was to be a speed of at for not less than six hours.Jarrett ''Aeroplane Monthly'' April 1992, pp. 16–19. Five companies showed interest: Percival, Short Brothers, Fairey Aviation, General Aircraft Ltd and Airspeed. General Aircraft submitted the G.A.L.38, of very similar general desig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Short Stirling
The Short Stirling was a British four-engined heavy bomber of the Second World War. It has the distinction of being the first four-engined bomber to be introduced into service with the Royal Air Force (RAF). The Stirling was designed during the late 1930s by Short Brothers to conform with the requirements laid out in Air Ministry Specification B.12/36. Prior to this, the RAF had been primarily interested in developing increasingly capable twin-engined bombers, but had been persuaded to investigate a prospective four-engined bomber as a result of promising foreign developments in the field. Out of the submissions made to the specification, Supermarine proposed the Type 317, which was viewed as the favourite, whereas Short's submission, named the S.29, was selected as an alternative. When the preferred Type 317 had to be abandoned, the S.29, which later received the name Stirling, proceeded to production. In early 1941, the Stirling entered squadron service. During its use as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Short Brothers
Short Brothers plc, usually referred to as Shorts or Short, is an aerospace company based in Belfast, Northern Ireland. Shorts was founded in 1908 in London, and was the first company in the world to make production aeroplanes. It was particularly notable for its flying boat designs manufactured into the 1950s. In 1943, Shorts was nationalised and later denationalised, and in 1948 moved from its main base at Rochester, Kent to Belfast. In the 1960s, Shorts mainly produced turboprop airliners, major components for aerospace primary manufacturers, and missiles for the British Armed Forces. Shorts was primarily government-owned until being bought by Bombardier in 1989, and is today the largest manufacturing concern in Northern Ireland. In November 2020, Bombardier sold its Belfast operations to Spirit AeroSystems. The company's products include aircraft components, engine nacelles and aircraft flight control systems for its parent company Bombardier Aerospace, and for Boeing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Short Scion Senior
The Short S.22 Scion Senior was a 1930s United Kingdom, British four-engined nine-passenger floatplane built by Short Brothers. Design and development The Scion Senior was developed as an enlarged version of the Short Scion, Scion light transport for nine passengers. Unfortunately, the aircraft failed to win orders from internal airline operators, who had already adopted the De Havilland Dragon and de Havilland Dragon Rapide, Dragon Rapide; instead it proved attractive as a seaplane for survey and river transport purposes overseas, and the first order came from the Irrawaddy River, Irrawaddy Flotilla Co. in Burma, with a promise of further orders if the first seaplane proved satisfactory. So the Scion Senior was designed basically as a seaplane with an alternative land chassis. The first two aircraft, built as floatplanes, were shipped to Rangoon as soon as they had received their Certificate of Airworthiness; the third aircraft was built as a landplane for Shorts to use as a dem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland
The de Havilland Aircraft Company Limited () was a British aviation manufacturer established in late 1920 by Geoffrey de Havilland at Stag Lane Aerodrome Edgware on the outskirts of north London. Operations were later moved to Hatfield in Hertfordshire. Known for its innovation, de Havilland was responsible for a number of important aircraft, including the Moth biplane which revolutionised aviation in the 1920s; the 1930s Fox Moth, a commercial light passenger aircraft; the wooden World War II Mosquito multirole aircraft; and the pioneering passenger jet airliner Comet. The de Havilland company became a member of the Hawker Siddeley group in 1960, but lost its separate identity in 1963. Later, Hawker Siddeley merged into what is eventually known today as BAE Systems, the British aerospace and defence business. The de Havilland name lives on in De Havilland Canada, which owns the rights to the name and the aircraft produced by de Havilland's former Canadian subsidiary, inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
