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Sir Roy Fedden
Sir Alfred Hubert Roy Fedden MBE, FRAeS (6 June 1885 – 21 November 1973) was an engineer who designed most of Bristol Engine Company's successful piston aircraft engine designs. Early life Fedden was born in the Bristol area to fairly wealthy and influential parents. His older brother was the artist Romilly Fedden. Fedden's family was the first in the area to own a car, an interesting parallel with fellow engine designer, Harry Ricardo. This early influence almost certainly led to his future career. Fedden attended Clifton College, but did not do well scholastically and was known primarily for sports. After leaving, he declined to enter the Army, and announced he would apprentice as an engineer. Apprenticeship His apprenticeship was completed in 1906, and he immediately designed a complete car. He managed to convince the local firm of Brazil Straker to hire him, and the design was produced as the successful Shamrock. He remained at Brazil Straker over the following years, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristol
Bristol () is a city, ceremonial county and unitary authority in England. Situated on the River Avon, it is bordered by the ceremonial counties of Gloucestershire to the north and Somerset to the south. Bristol is the most populous city in South West England. The wider Bristol Built-up Area is the eleventh most populous urban area in the United Kingdom. Iron Age hillforts and Roman villas were built near the confluence of the rivers Frome and Avon. Around the beginning of the 11th century, the settlement was known as (Old English: 'the place at the bridge'). Bristol received a royal charter in 1155 and was historically divided between Gloucestershire and Somerset until 1373 when it became a county corporate. From the 13th to the 18th century, Bristol was among the top three English cities, after London, in tax receipts. A major port, Bristol was a starting place for early voyages of exploration to the New World. On a ship out of Bristol in 1497, John Cabot, a Venetia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolls-Royce Hawk
The Rolls-Royce Hawk was a British aero engine designed by Rolls-Royce in 1915. Derived from one bank of six cylinders of the Rolls-Royce Eagle, it produced 75 horsepower at 1,370 rpm. Power was progressively increased to 91 hp by February 1916, and 105 hp by October 1918. After Rolls-Royce made the prototypes, the Hawk was manufactured under licence by Brazil Straker in Bristol between 1915 and 1918. During this period 204 engines were built, and the Hawk earned a reputation for high reliability. Many engines of this type were used to power the SSZ class coastal patrol airships of which 76 were built. Applications * Avro 504F *Farman MF.7 * Royal Aircraft Factory B.E.2 *SS class blimp (1 example) * SSP class blimp * SSZ class blimp *SST class blimp Post war one engine (serial number 332) was fitted into a specially built hull and launched on Windermere in 1922 with the name ''Canfly''. With a flywheel added it was directly connected to the boat's propeller witho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristol Filton Airport
Filton Airport or Filton Aerodrome was a private airport in Filton and Patchway, within South Gloucestershire, north of Bristol, England. Description The airfield was bounded by the A38 road to the east, and the former London to Avonmouth railway line to the south. To the north it was bounded by the Filton Bypass. A major road now crosses this bypass, running across former airfield land and linking Filton and Patchway to Cribbs Causeway. The housing development of Charlton Hayes is being built on the section of the airfield that is in the town of Patchway. The airfield had a United Kingdom Civil Aviation Authority Ordinary Licence (number P741) allowing flights for the public transport of passengers or for flying instruction as authorised by the licensee. Several private jets had the airfield as their home. Filton's runway was wider than most, at 91 m (300 ft), and had a considerable length of 2,467 m (8,094 ft), having been extended for the maiden fligh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sir George White, 1st Baronet
Sir George White, 1st Baronet (1854–1916), was an English businessman and stockbroker based in Bristol. He was instrumental in the construction of the Bristol tramways and became a pioneer in the construction of electric tramways in England. In 1910 he formed, with his brother Samuel, the Bristol Aeroplane Company. He had many other interests, particularly in transport companies. Early life White was born in Kingsdown, Bristol, on 28 March 1854, the son of James White, a painter and decorator, and his wife Eliza who had been a domestic servant before marrying. He attended St Michaels Boys' School, and in 1869 joined Stanley & Wasbrough (a Bristol firm of solicitors) as a junior clerk. In 1874 the firm was involved in the promotion of the Bristol Tramways Company, following the passage of the Tramways Act 1870, and White played a major part. In 1875 he left the company and established a stockbroking firm, George White & Co. Tramways, cabs and omnibuses In 1875 Wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Ministry
The Air Ministry was a department of the Government of the United Kingdom with the responsibility of managing the affairs of the Royal Air Force, that existed from 1918 to 1964. It was under the political authority of the Secretary of State for Air. Organisations before the Air Ministry The Air Committee On 13 April 1912, less than two weeks after the creation of the Royal Flying Corps (which initially consisted of both a naval and a military wing), an Air Committee was established to act as an intermediary between the Admiralty and the War Office in matters relating to aviation. The new Air Committee was composed of representatives of the two war ministries, and although it could make recommendations, it lacked executive authority. The recommendations of the Air Committee had to be ratified by the Admiralty Board and the Imperial General Staff and, in consequence, the Committee was not particularly effective. The increasing separation of army and naval aviation from 191 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ABC Dragonfly
The ABC Dragonfly was a British radial engine developed towards the end of the First World War. It was expected to deliver excellent performance for the time and was ordered in very large numbers. It proved, however, to be extremely unreliable and was abandoned when its faults were unable to be corrected. Design and development ABC Motors was founded in 1911 by Granville Bradshaw, who was also the company's chief designer. In 1917, after initial promising tests of the ABC Wasp air-cooled radial, Bradshaw produced a design for a larger and more powerful engine, the nine-cylinder Dragonfly. The engine was simple and easy to produce, and was predicted to give 340 hp (254 kW) for a weight of 600 lb (273 kg). One distinctive feature was the use of copper-plated cooling fins, which were claimed by Bradshaw to be so effective that water would not boil on the surface of the radiators.Bruce 1974, p.292 On the basis of the promised performance, Sir William Weir, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristol Badger
The Bristol Badger was designed to meet a British need for a two-seat fighter-reconnaissance aeroplane at the end of the First World War. Three Badgers were delivered to the Air Board to develop air-cooled radial engines, particularly that which became the Bristol Jupiter; two other Badgers were also built. Development The Bristol Badger had its roots in the Type 22 F.2C, a proposed upgrade of the Bristol F.2B using a 200 hp (150 kW) Salmson radial (Type 22), a 300 hp (220 kW) ABC Dragonfly radial (Type 22A), or a 230 hp (170 kW) Bentley B.R.2 rotary (Type 22B). The Type 23 Badger was a new design using the Dragonfly engine, drawn up at the end of 1917 to meet a two-seat fighter-reconnaissance role and owing a good deal to the Bristol Scout F. It was a single-bay biplane with strongly staggered, unswept and unequal-span wings. The pilot and observer sat in tandem, the pilot in front under the upper-wing trailing edge and the observer behind w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunbeam Arab
The Sunbeam Arab was a British First World War era aero engine. Design and development By 1916 the demand for aero-engines was placing huge demands on manufacturing. To help ease the pressure the War Office standardised on engines of about ; one of these was a V-8 water-cooled engine from Sunbeam known as the Arab. Using cast aluminium alloy cylinder blocks and heads with die-cast aluminium alloy pistons, the Arab had a bore of and stroke of for a capacity of , developing at 2,000 rpm. First bench-run in 1916, the Arab was obviously inspired by the Hispano-Suiza V-8 engines but with very little in common when examined in detail. After submission to the Internal Combustion Engine Committee of the National Advisory Committee Sunbeam received an order for 1,000 in March 1917, increased to 2,000 in June 1917 as well as another 2,160 to be built by Austin Motors (1,000), Lanchester Motor Company (300), Napier & Son (300), and Willys Overland (560) in the United States of Amer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristol Scout
The Bristol Scout was a single-seat rotary-engined biplane originally designed as a racing aircraft. Like similar fast, light aircraft of the period it was used by the RNAS and the RFC as a "scout", or fast reconnaissance type. It was one of the first single-seaters to be used as a fighter aircraft, although it was not possible to fit it with an effective forward-firing armament until the first British-designed gun synchronizers became available later in 1916, by which time the Scout was obsolescent. Single-seat fighters continued to be called "scouts" in British usage into the early 1920s. Design and development The Bristol Scout was designed in the second half of 1913 by Frank Barnwell and Harry Busteed, Bristol's chief test pilot, who thought of building a small high-performance biplane while testing the Bristol X.3 seaplane, a project which had been designed by a separate secret design department headed by Barnwell. The design was initially given the works number SN.183 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radial Engine
The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel. It resembles a stylized star when viewed from the front, and is called a "star engine" in some other languages. The radial configuration was commonly used for aircraft engines before gas turbine engines became predominant. Engine operation Since the axes of the cylinders are coplanar, the connecting rods cannot all be directly attached to the crankshaft unless mechanically complex forked connecting rods are used, none of which have been successful. Instead, the pistons are connected to the crankshaft with a master-and-articulating-rod assembly. One piston, the uppermost one in the animation, has a master rod with a direct attachment to the crankshaft. The remaining pistons pin their connecting rods' attachments to rings around the edge of the master rod. Extra "rows" of radial cylinders can be added i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leonard Butler
Leonard or ''Leo'' is a common English masculine given name and a surname. The given name and surname originate from the Old High German ''Leonhard'' containing the prefix ''levon'' ("lion") from the Greek Λέων ("lion") through the Latin '' Leo,'' and the suffix ''hardu'' ("brave" or "hardy"). The name has come to mean "lion strength", "lion-strong", or "lion-hearted". Leonard was the name of a Saint in the Middle Ages period, known as the patron saint of prisoners. Leonard is also an Irish origin surname, from the Gaelic ''O'Leannain'' also found as O'Leonard, but often was anglicised to just Leonard, consisting of the prefix ''O'' ("descendant of") and the suffix ''Leannan'' ("lover"). The oldest public records of the surname appear in 1272 in Huntingdonshire, England, and in 1479 in Ulm, Germany. Variations The name has variants in other languages: * Leen, Leendert, Lenard (Dutch) * Lehnertz, Lehnert (Luxembourgish) * Len (English) * :hu:Lénárd (Hungarian) * Lenart ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Technical Drawing
Technical drawing, drafting or drawing, is the act and Academic discipline, discipline of composing Plan (drawing), drawings that Visual communication, visually communicate how something functions or is constructed. Technical drawing is essential for communicating ideas in Manufacturing, industry and engineering. To make the drawings easier to understand, people use familiar symbols, Perspective (graphical), perspectives, units of measurement, notation systems, visual styles, and page layout. Together, such Convention (norm), conventions constitute a visual language and help to ensure that the drawing is unambiguous and relatively easy to understand. Many of the symbols and principles of technical drawing are codified in an international standard called ISO 128. The need for precise communication in the preparation of a functional document distinguishes technical drawing from the expressive drawing of the visual arts. Artistic drawings are subjectively interpreted; their meanin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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