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1952 Farnborough Airshow Crash
On 6 September 1952, a prototype de Havilland DH.110 jet fighter crashed during an aerial display at the Farnborough Airshow in Hampshire, England. The jet disintegrated mid-air during an aerobatic manoeuvre, causing the death of pilot John Derry and onboard flight test observer Anthony Richards. Debris from the aircraft fell onto a crowd of spectators, killing 29 people and injuring 60. The cause of the break-up was later determined to be structural failure due to a design flaw in the wing's leading edge. All DH.110s were initially grounded, but after modification to its design, the type entered service with the Royal Navy as the Sea Vixen. Stricter safety procedures were subsequently enacted for UK air shows and there were no further spectator fatalities until the 2015 Shoreham Airshow crash in which 11 people died. Incident Crew The aircraft had a crew of two, pilot John Derry and onboard flight test observer Anthony Richards. Thirty-year-old Derry had served in the Roya ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Structural Failure
Structural integrity and failure is an aspect of engineering that deals with the ability of a structure to support a designed structural load (weight, force, etc.) without breaking and includes the study of past structural failures in order to prevent failures in future designs. Structural integrity is the ability of an item—either a structural component or a structure consisting of many components—to hold together under a load, including its own weight, without breaking or deforming excessively. It assures that the construction will perform its designed function during reasonable use, for as long as its intended life span. Items are constructed with structural integrity to prevent catastrophic failure, which can result in injuries, severe damage, death, and/or monetary losses. ''Structural failure'' refers to the loss of structural integrity, or the loss of load-carrying capacity in either a structural component or the structure itself. Structural failure is initiated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distinguished Flying Cross (United Kingdom)
The Distinguished Flying Cross (DFC) is the third-level military decoration awarded to officers, and since 1993 to other ranks, of the United Kingdom's Royal Air Force and other services, and formerly to officers of other Commonwealth countries, for "an act or acts of valour, courage or devotion to duty whilst flying in active operations against the enemy". History The award was established on 3 June 1918, shortly after the formation of the Royal Air Force (RAF), with the Royal Warrant published on 5 December 1919. It was originally awarded to RAF commissioned and warrant officers, including officers in Commonwealth and allied forces. In March 1941 eligibility was extended to Naval Officers of the Fleet Air Arm, and in November 1942 to Army officers, including Royal Artillery officers serving on attachment to the RAF as pilots-cum-artillery observers. Posthumous awards were permitted from 1979. Since the 1993 review of the honours system as part of the drive to remove disti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Today (BBC Radio 4)
''Today'', colloquially known as ''the Today programme'', is a long-running British morning news and current-affairs radio programme on BBC Radio 4. Broadcast on Monday to Saturday from 6:00 am to 9:00 am, it is produced by BBC News and is the highest-rated programme on Radio 4 and one of the BBC's most popular programmes across its radio networks. In-depth political interviews and reports are interspersed with regular news bulletins, as well as ''Thought for the Day''. It has been voted the most influential news programme in Britain in setting the political agenda, with an average weekly listening audience around 7 million. History ''Today'' was launched on the BBC's Home Service on 28 October 1957 as a programme of "topical talks" to give listeners an alternative to listening to light music. The programme's founders were Isa Benzie and Janet Quigley. Benzie gave the programme its name, and served as its first ''de facto'' editor. It was initially broadcast as two 20-minute ed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BBC Four
BBC Four is a British free-to-air public broadcast television channel owned and operated by the BBC. It was launched on 2 March 2002"Culture, controversy and cutting edge documentary: BBC FOUR prepares to launch" BBC Press Office, 14 February 2002. Retrieved 2 April 2010. and shows a wide variety of programmes including arts, documentaries, music, international film and drama, and current affairs. It is required by its licence to air at least 100 hours of new arts and music programmes, 110 hours of new factual programmes, and to premiere twenty foreign films each year. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballistic Trajectory
Projectile motion is a form of motion experienced by an object or particle (a projectile) that is projected in a gravitational field, such as from Earth's surface, and moves along a curved path under the action of gravity only. In the particular case of projectile motion of Earth, most calculations assume the effects of air resistance are passive and negligible. The curved path of objects in projectile motion was shown by Galileo to be a parabola, but may also be a straight line in the special case when it is thrown directly upwards. The study of such motions is called ballistics, and such a trajectory is a ballistic trajectory. The only force of mathematical significance that is actively exerted on the object is gravity, which acts downward, thus imparting to the object a downward acceleration towards the Earth’s center of mass. Because of the object's inertia, no external force is needed to maintain the horizontal velocity component of the object's motion. Taking other f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hatfield, Hertfordshire
Hatfield is a town and civil parish in Hertfordshire, England, in the borough of Welwyn Hatfield. It had a population of 29,616 in 2001, and 39,201 at the 2011 Census. The settlement is of Saxon origin. Hatfield House, home of the Marquess of Salisbury, forms the nucleus of the old town. From the 1930s when de Havilland opened a factory until the 1990s when British Aerospace closed it, aircraft design and manufacture employed more people there than any other industry. Hatfield was one of the post-war New Towns built around London and has much modernist architecture from the period. The University of Hertfordshire is based there. Hatfield lies north of London beside the A1(M) motorway and has direct trains to London King's Cross railway station, Finsbury Park and Moorgate. There has been a strong increase in commuters who work in London moving into the area. In 2022, TV property expert Phil Spencer named Hatfield as the second best place to live for regular commuters to Lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supersonic Speed
Supersonic speed is the speed of an object that exceeds the speed of sound ( Mach 1). For objects traveling in dry air of a temperature of 20 °C (68 °F) at sea level, this speed is approximately . Speeds greater than five times the speed of sound (Mach 5) are often referred to as hypersonic. Flights during which only some parts of the air surrounding an object, such as the ends of rotor blades, reach supersonic speeds are called transonic. This occurs typically somewhere between Mach 0.8 and Mach 1.2. Sounds are traveling vibrations in the form of pressure waves in an elastic medium. Objects move at supersonic speed when the objects move faster than the speed at which sound propagates through the medium. In gases, sound travels longitudinally at different speeds, mostly depending on the molecular mass and temperature of the gas, and pressure has little effect. Since air temperature and composition varies significantly with altitude, the speed of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Night Fighter
A night fighter (also known as all-weather fighter or all-weather interceptor for a period of time after the Second World War) is a fighter aircraft adapted for use at night or in other times of bad visibility. Night fighters began to be used in World War I and included types that were specifically modified to operate at night. During the Second World War, night fighters were either purpose-built night fighter designs, or more commonly, heavy fighters or light bombers adapted for the mission, often employing radar or other systems for providing some sort of detection capability in low visibility. Many night fighters of the conflict also included instrument landing systems for landing at night, as turning on the runway lights made runways into an easy target for opposing intruders. Some experiments tested the use of day fighters on night missions, but these tended to work only under very favourable circumstances and were not widely successful. Avionics systems were greatly mini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Kingdom Military Aircraft Serial Numbers
United Kingdom military aircraft serial numbers are aircraft registration numbers used to identify individual military aircraft in the United Kingdom (UK). All UK military aircraft are allocated and display a unique registration number. A unified registration number system, maintained initially by the Air Ministry (AM), and its successor the Ministry of Defence (MoD), is used for aircraft operated by the Royal Air Force (RAF), Fleet Air Arm (FAA), and Army Air Corps (AAC). Military aircraft operated by government agencies and civilian contractors (for example QinetiQ) are also assigned registration numbers from this system. When the Royal Flying Corps (RFC) was formed in 1912, its aircraft were identified by a letter/number system related to the manufacturer. The prefix 'A' was allocated to balloons of No.1 Company, Air Battalion, Royal Engineers, the prefix 'B' to aeroplanes of No.2 Company, and the prefix 'F' to aeroplanes of the Central Flying School.Bruce 1956, p.922 T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Aeronautical Society
The Royal Aeronautical Society, also known as the RAeS, is a British multi-disciplinary professional institution dedicated to the global aerospace community. Founded in 1866, it is the oldest aeronautical society in the world. Members, Fellows, and Companions of the society can use the post-nominal letters MRAeS, FRAeS, or CRAeS, respectively. Function The objectives of The Royal Aeronautical Society include: to support and maintain high professional standards in aerospace disciplines; to provide a unique source of specialist information and a local forum for the exchange of ideas; and to exert influence in the interests of aerospace in the public and industrial arenas, including universities. The Royal Aeronautical Society is a worldwide society with an international network of 67 branches. Many practitioners of aerospace disciplines use the Society's designatory post-nominals such aFRAeS CRAeS, MRAeS, AMRAeS, and ARAeS (incorporating the former graduate grade, GradRAeS). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cairns
Cairns (, ) is a city in Queensland, Australia, on the tropical north east coast of Far North Queensland. The population in June 2019 was 153,952, having grown on average 1.02% annually over the preceding five years. The city is the 5th-most-populous in Queensland, and 15th in Australia. The city was founded in 1876 and named after Sir William Wellington Cairns, following the discovery of gold in the Hodgkinson river. Throughout the late 19th century, Cairns prospered from the settlement of Chinese immigrants who helped develop the region's agriculture. Cairns also served as a port for blackbirding ships, bringing slaves and indentured labourers to the sugar plantations of Innisfail. During World War II, the city became a staging ground for the Allied Forces in the Battle of the Coral Sea. By the late 20th century the city had become a centre of international tourism, and in the early 21st century has developed into a major metropolitan city. Cairns is a popular tourist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Cairns Post
''The Cairns Post'' is a major News Corporation newspaper in Far North Queensland, Australia, that exclusively serves the Cairns area. It has daily coverage on local, state, national and world news, plus a wide range of sections and liftouts covering health, beauty, cars and lifestyle. ''The Cairns Post'' is published every weekday and a weekend edition which is called ''The Weekend Post'' which is published on Saturdays. It is the oldest business in Cairns and has been operating continuously for more than a century. In 2013, ''The Cairns Post'' won the Pacific Area Newspaper Publishers’ Association (PANPA) Award for best regional Newspaper of the Year Dailies (5-6-7 days) circulation 10,000-25,000. In March 2015, Jennifer Spilsbury was appointed editor, becoming the first female editor in the paper's 132-year history. She replaced editor Andy Van Smeerdijk. History A prior newspaper that was also called ''The Cairns Post'' was first published on 10 May 1883. It was founde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
