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Hawker Siddeley HS 748
The Hawker Siddeley HS 748 (formerly Avro HS 748) is a medium-sized turboprop airliner originally designed and initially produced by the British aircraft manufacturer Avro. It was the last aircraft to be developed by Avro prior to its absorption into Hawker Siddeley. The HS 748 was developed during the late 1950s as a move to re-orient the company towards the civil and export markets. Powered by the popular Rolls-Royce Dart turboprop engine, it was specifically designed as a modern feederliner to act as a replacement for the aging Douglas DC-3s then in widespread service. Originally intended to seat a smaller number of passengers, market research indicated that a seating capacity of around 40 passengers would be optimal for the type. As a means to differentiate the new airliner from competitors, it was designed to possess a high level of performance, including its STOL, short takeoff and landing (STOL) capabilities and overall ruggedness. First flying on 24 June 1960, the series ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air North
Air North Charter and Training Ltd., operating as , is a Canadian airline based in Whitehorse, Yukon. It operates scheduled passenger and cargo flights throughout Yukon, as well as between Yukon and the Northwest Territories, British Columbia, Alberta, and Ontario. The airline also operates charter flights throughout Canada and Alaska. The airline further provides ground handling services and fuel services to other airlines throughout Yukon, and it provides ground handling services at Calgary International Airport Vancouver International Airport and Edmonton International Airport. Its main base is Erik Nielsen Whitehorse International Airport. History The airline was established by Joe Sparling and Tom Woods, and started flight training and general purpose charter operations in 1977 with a single Cessna 206. Throughout the 1980s, the company grew and acquired several aircraft including Douglas DC-3s, a Douglas DC-4, and a variety of Cessnas, de Havillands and other airc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hindustan Aeronautics Limited
Hindustan Aeronautics Limited (HAL) is an Indian public sector aerospace and defence company, headquartered in Bengaluru. Established on 23 December 1940, HAL is one of the oldest and largest aerospace and defence manufacturers in the world. HAL began aircraft manufacturing as early as 1942 with licensed production of Harlow PC-5, Curtiss P-36 Hawk and Vultee A-31 Vengeance for the Indian Air Force. HAL currently has 11 dedicated Research and development (R&D) centres and 21 manufacturing divisions under 4 production units spread across India. HAL is managed by a board of directors appointed by the President of India through the Ministry of Defence (India), Ministry of Defence, Government of India. In 2024, the company was given Public Sector Undertakings in India, Maharatna status. HAL is currently involved in the designing and manufacturing of fighter jets, helicopters, jet engine and marine gas turbine engine, avionics, hardware development, spares supply, overhauling and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Safe-life Design
In safe-life design, products are intended to be removed from service at a specific design life. Safe-life is particularly relevant to simple metal aircraft, where airframe components are subjected to alternating loads over the lifetime of the aircraft which makes them susceptible to metal fatigue. In certain areas such as in wing or tail components, structural failure in flight would be catastrophic. The safe-life design technique is employed in critical systems which are either very difficult to repair or whose failure may cause severe damage to life and property. These systems are designed to work for years without requirement of any repairs. The disadvantage of the safe-life design philosophy is that serious assumptions must be made regarding the alternating loads imposed on the aircraft, so if those assumptions prove to be inaccurate, cracks may commence prior to the component being removed from service. To counter this disadvantage, alternative design philosophies like fai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fail-safe
In engineering, a fail-safe is a design feature or practice that, in the event of a failure causes, failure of the design feature, inherently responds in a way that will cause minimal or no harm to other equipment, to the environment or to people. Unlike inherent safety to a particular hazard, a system being "fail-safe" does not mean that failure is naturally inconsequential, but rather that the system's design prevents or mitigates unsafe consequences of the system's failure. If and when a "fail-safe" system fails, it remains at least as safe as it was before the failure. Since many types of failure are possible, failure mode and effects analysis is used to examine failure situations and recommend safety design and procedures. Some systems can never be made fail-safe, as continuous availability is needed. Redundancy (engineering), Redundancy, fault tolerance, or contingency plans are used for these situations (e.g. multiple independently controlled and fuel-fed engines). Examples ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airworthiness
In aviation, airworthiness is the measure of an aircraft's suitability for Air safety, safe flight. Initial airworthiness is demonstrated by a certificate of airworthiness issued by the civil aviation authority in the state in which the aircraft is registered, and continuing airworthiness is achieved by performing the required Aircraft maintenance, maintenance actions. Certification is based on standards applied by civil aviation authorities. Interoperability is served when national benchmarks adopt standards from international civil and military organizations such as International Civil Aviation Organization (ICAO), European Aviation Safety Agency (EASA), NATO and European Defence Agency (EDA). In the U.S., Title 14, Code of Federal Regulations, Subchapter F, Part 91.7 states: "a) No person may operate an aircraft unless it is in an airworthy condition. b) The pilot in command of a civil aircraft is responsible for determining whether that aircraft is in condition for safe fli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States asserts sovereignty over five Territories of the United States, major island territories and United States Minor Outlying Islands, various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's List of countries and dependencies by area, third-largest land area and List of countries and dependencies by population, third-largest population, exceeding 340 million. Its three Metropolitan statistical areas by population, largest metropolitan areas are New York metropolitan area, New York, Greater Los Angeles, Los Angel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fokker F27 Friendship
The Fokker F27 Friendship is a turboprop airliner developed and manufactured by the Dutch aircraft manufacturer Fokker. It is the most numerous post-war aircraft manufactured in the Netherlands; the F27 was also one of the most successful European airliners of its era. The F27 was developed during the early 1950s with the intent of producing a capable successor to the earlier piston engine-powered airliners that had become commonplace on the market, such as the Douglas DC-3. A key innovation of the F27 was the adoption of the Rolls-Royce Dart turboprop engine, which produced substantially less vibration and noise which provided improved conditions for passengers; another major comfort feature was cabin pressurisation. Innovative manufacturing techniques were also employed in the aircraft's construction. On 24 November 1955, the F27 made its maiden flight; on 19 November 1958, the type was introduced to revenue service. Shortly after its introduction, the F27 was recognised as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flight International
''Flight International'', formerly ''Flight'', is a monthly magazine focused on aerospace. Published in the United Kingdom and founded in 1909 as "A Journal devoted to the Interests, Practice, and Progress of Aerial Locomotion and Transport", it is the world's oldest continuously published aviation news magazine. ''Flight International'' is published by DVV Media Group. Competitors include Jane's Information Group and '' Aviation Week''. Former editors of, and contributors include H. F. King, Bill Gunston, John W. R. Taylor and David Learmount. History The founder and first editor of ''Flight'' was Stanley Spooner. He was also the creator and editor of ''The Automotor Journal'', originally titled ''The Automotor Journal and Horseless Vehicle''.Guide To British Industrial His ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vickers Viscount
The Vickers Viscount is a retired British medium-range turboprop airliner first flown in 1948 by Vickers-Armstrongs. A design requirement from the Brabazon Committee, it entered service in 1953 and was the first turboprop-powered airliner. The Viscount was well received by the public for its cabin conditions, which included Cabin pressurization, pressurisation, reductions in vibration and noise, and panoramic windows. It became one of the most successful and profitable of the first postwar transport aircraft; 445 Viscounts were built for a range of international customers, including in North America. Development Origins The Viscount was a response to the 1943 Brabazon Committee's proposed Type II design for a postwar, small, medium-range, Cabin pressurization, pressurised aircraft to fly less-travelled routes, carrying 24 passengers up to 1,750 mi (2,816 km) at 200 mph (320 km/h).Cacutt 1989, pp. 323–333. During discussions between the committee and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avro Tudor
The Avro Type 688 Tudor was a British piston-engined airliner based on Avro's four-engine Avro Lincoln, Lincoln bomber, itself a descendant of the famous Avro Lancaster, Lancaster heavy bomber, and was Britain's first pressurised airliner. Customers saw the aircraft as little more than a pressurised Douglas DC-4, DC-4, and few orders were forthcoming, important customers preferring to buy US aircraft. The Conventional landing gear, tailwheel undercarriage layout was also dated and a disadvantage. Development Avro began work on the Type 688 Tudor in 1943, following List of Air Ministry specifications, Specification 29/43 for a commercial adaptation of the Lancaster IV bomber, which was later renamed Avro Lincoln, Lincoln. The specification was based on recommendations of the Brabazon Committee, which issued specifications for nine types of commercial aircraft for postwar use. Avro first proposed to build the Avro 687 (Avro XX), which was a Lincoln bomber with a new circular sec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duncan Sandys
Duncan Edwin Duncan-Sandys, Baron Duncan-Sandys (; 24 January 1908 – 26 November 1987), was a British politician and minister in successive Conservative governments in the 1950s and 1960s. He was a son-in-law of Winston Churchill and played a key role in promoting European unity after World War II. Early life Sandys, born on 24 January 1908 at the Manor House, Sandford Orcas, Dorset, was the son of George John Sandys, a Conservative Member of Parliament (1910–1918), and Mildred Helen Cameron. Sandys's parents divorced in January 1921 when he was 12 years old. His mother married Frederick Hamilton Lister in October that year, becoming Mildred Helen Lister. He was educated at Eton College and Magdalen College, Oxford. Early career Sandys entered the diplomatic service in 1930, serving at the Foreign Office in London as well as at the embassy in Berlin. He became Conservative Party Member of Parliament (MP) for Norwood in south London in a by-election in March 1935, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minister Of Defence (United Kingdom)
The post of Minister of Defence was responsible for co-ordination of defence and security from its creation in 1940 until its abolition in 1964. The post was a Cabinet of the United Kingdom, Cabinet-level post and generally ranked above the three service ministers, some of whom, however, continued to also serve in Cabinet. The Ministry of Defence (1947–1964), Ministry of Defence was created in 1947. History Prior to the outbreak of the Second World War, concerns about British forces being understrength led in 1936 to the creation of the post of Minister for Coordination of Defence by Prime Minister Stanley Baldwin. The post was abolished by Baldwin's successor Neville Chamberlain in April 1940. On his appointment as Prime Minister in May 1940, Winston Churchill created for himself the new post of Minister of Defence. The post was created in response to previous criticism that there had been no clear single minister in charge of the prosecution of the World War II, war. In 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
