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Melvill Jones
Sir Bennett Melvill Jones, (28 January 1887 – 31 October 1975) was Francis Mond Professor of Aeronautical Engineering at the University of Cambridge from 1919 to 1952. He demonstrated the importance of streamlining in aircraft design. It had been known since the time of Aristotle, that a moving body passing through air or another fluid encounters resistance ( aerodynamic drag), but Jones developed the ideas of Louis Charles Breguet into a refined theory to demonstrate emphatically the importance of drag to the performance of aircraft. Origin and education He was the eldest of the three children of Benedict Jones, a barrister, and Henrietta Cornelia Melvill, the South African widow of George William Bennett. His father served as mayor of Birkenhead. Jones was born in Rock Ferry, a suburb of Birkenhead. After attending a preparatory school in Rock Ferry, he was educated at Birkenhead School from 1898–1906. He recalled having great admiration for the headmaster who allowed him ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francis Mond Professor Of Aeronautical Engineering
The Francis Mond Professor of Aeronautical Engineering is a professorship in the University of Cambridge. It was established in 1919 as a result of a benefaction from Emile Mond, in memory of his son Francis who had been educated at Peterhouse and was killed in action on 15 May 1918 whilst serving with the RAF The Royal Air Force (RAF) is the United Kingdom's air and space force. It was formed towards the end of the First World War on 1 April 1918, becoming the first independent air force in the world, by regrouping the Royal Flying Corps (RFC) and ... on the Western Front. Incumbents of the Francis Mond Professorship of Aeronautical Engineering * Bennett Melvill Jones, 1919–1952 * William Austyn Mair, 1952–1983 * Michael Gaster, 1986–1995 * Bill Dawes, 1996–current See also * List of Professorships at the University of Cambridge References {{DEFAULTSORT:Professor of Aeronautical Engineering, Mond, Francis, Cambridge Aeronautical Engineering, Mond, Francis Sch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knight Bachelor
The title of Knight Bachelor is the basic rank granted to a man who has been knighted by the monarch but not inducted as a member of one of the organised orders of chivalry; it is a part of the British honours system. Knights Bachelor are the most ancient sort of British knight (the rank existed during the 13th-century reign of King Henry III), but Knights Bachelor rank below knights of chivalric orders. A man who is knighted is formally addressed as "Sir irst Name urname or "Sir irst Name and his wife as "Lady urname. Criteria Knighthood is usually conferred for public service; amongst its recipients are all male judges of His Majesty's High Court of Justice in England. It is possible to be a Knight Bachelor and a junior member of an order of chivalry without being a knight of that order; this situation has become rather common, especially among those recognized for achievements in entertainment. For instance, Sir Michael Gambon, Sir Derek Jacobi, Sir Anthony Hopkins, Sir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1942 New Year Honours
The 1942 New Year Honours were appointments by King George VI to various orders and honours to reward and highlight good works by citizens of the United Kingdom and British Empire. They were announced on 30 December 1941.United Kingdom and British Empire: The recipients of honours are displayed here as they were styled before their new honour. United Kingdom and British Empire Baron *The Right Honourable Sir (Albert) Charles Clauson, C.B.E., a Judge of the High Court. 1926–38. A Lord Justice of Appeal, 1938–41. *Brigadier-General The Right Honourable Sir Auckland Campbell Geddes, G.C.M.G., K.C.B., T.D., M.D., LL.D. For public services. Baronet *Commander Sir Charles Worthington Craven, O.B.E., R.N. (Retd.), Controller General, Ministry of Aircraft Production, Chairman and Managing Director, Vickers-Armstrongs, Limited. * Sir Ralph Lewis Wedgwood, C.B., C.M.G., lately Chairman of the Railway Executive Committee. Knight Bachelor *Alderman Frank Samuel Alexander, lately ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commander Of The Most Excellent Order Of The British Empire
The Most Excellent Order of the British Empire is a British order of chivalry, rewarding contributions to the arts and sciences, work with charitable and welfare organisations, and public service outside the civil service. It was established on 4 June 1917 by King George V and comprises five classes across both civil and military divisions, the most senior two of which make the recipient either a knight if male or dame if female. There is also the related British Empire Medal, whose recipients are affiliated with, but not members of, the order. Recommendations for appointments to the Order of the British Empire were originally made on the nomination of the United Kingdom, the self-governing Dominions of the Empire (later Commonwealth) and the Viceroy of India. Nominations continue today from Commonwealth countries that participate in recommending British honours. Most Commonwealth countries ceased recommendations for appointments to the Order of the British Empire when they cre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1938 Birthday Honours
The King's Birthday Honours 1938 were appointments in many of the Commonwealth realms of King George VI to various orders and honours to reward and highlight the meritorious work of his subjects in those countries. The appointments were made to celebrate the King's official birthday and for the United Kingdom and Colonies were announced on 7 June 1938. The recipients of honours are displayed here as they were styled before their new honour, and arranged by honour, with classes (Knight, Knight Grand Cross, ''etc.'') and then divisions (Military, Civil, ''etc.'') as appropriate. United Kingdom and Colonies Viscount * The Right Honourable John Lawrence, Baron Stonehaven, . Governor-General and Commander-in-Chief, Commonwealth of Australia, 1925–30. Chairman of the Conservative and Unionist Party Organisation, 1931–1936. For political and public services. * The Right Honourable William Douglas, Baron Weir, . For public services. Baron * Vivian Hugh Smith. For political and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeronautical Research Committee
The Advisory Committee for Aeronautics (ACA) was a UK agency founded on 30 April 1909, to undertake, promote, and institutionalize aeronautical research. In 1919 it was renamed the Aeronautical Research Committee, later becoming the Aeronautical Research Council. Following the establishment of this committee, other countries created similar agencies, notably the French ''L’Etablissement Central de l’Aérostation Militaire'' in Meudon (now ''ONERA''), the Russian "Aerodynamic Institute of Koutchino" and the U.S.A.'s National Advisory Committee for Aeronautics, founded in 1915. The Aeronautical Research Council was disbanded in 1979. Origins The idea for the creation of the ACA originated with the then Secretary of State for War, R.B.Haldane (later First Viscount Haldane), who was supported in his efforts by the Prime Minister of the United Kingdom H. H. Asquith. Asquith announced the committee's appointment in a statement to the House of Commons on 5 May 1909, in which h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ministry Of Aircraft Production
Ministry may refer to: Government * Ministry (collective executive), the complete body of government ministers under the leadership of a prime minister * Ministry (government department), a department of a government Religion * Christian ministry, activity by Christians to spread or express their faith ** Minister (Christianity), clergy authorized by a church or religious organization to perform teaching or rituals ** Ordination, the process by which individuals become clergy * Ministry of Jesus, activities described in the Christian gospels * ''Ministry'' (magazine), a magazine for pastors published by the Seventh-day Adventist Church Music * Ministry (band), an American industrial metal band * Ministry of Sound, a London nightclub and record label Fiction * Ministry (comics), a horror comic book created by writer-artist Lara J. Phillips * Ministry of Magic, governing body in the ''Harry Potter'' series * Ministry of Darkness, a professional wrestling stable led by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carnot Cycle
A Carnot cycle is an ideal thermodynamic cycle proposed by French physicist Sadi Carnot in 1824 and expanded upon by others in the 1830s and 1840s. By Carnot's theorem, it provides an upper limit on the efficiency of any classical thermodynamic engine during the conversion of heat into work, or conversely, the efficiency of a refrigeration system in creating a temperature difference through the application of work to the system. In a Carnot cycle, a system or engine transfers energy in the form of heat between two thermal reservoirs at temperatures T_H and T_C (referred to as the hot and cold reservoirs, respectively), and a part of this transferred energy is converted to the work done by the system. The cycle is reversible, and there is no generation of entropy. (In other words, entropy is conserved; entropy is only transferred between the thermal reservoirs and the system without gain or loss of it.) When work is applied to the system, heat moves from the cold to hot reser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landing Gear
Landing gear is the undercarriage of an aircraft or spacecraft that is used for takeoff or landing. For aircraft it is generally needed for both. It was also formerly called ''alighting gear'' by some manufacturers, such as the Glenn L. Martin Company. For aircraft, Stinton makes the terminology distinction ''undercarriage (British) = landing gear (US)''. For aircraft, the landing gear supports the craft when it is not flying, allowing it to take off, land, and taxi without damage. Wheeled landing gear is the most common, with skis or floats needed to operate from snow/ice/water and skids for vertical operation on land. Faster aircraft have retractable undercarriages, which fold away during flight to reduce drag. Some unusual landing gear have been evaluated experimentally. These include: no landing gear (to save weight), made possible by operating from a catapult cradle and flexible landing deck: air cushion (to enable operation over a wide range of ground obstacles and wat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drag (physics)
In fluid dynamics, drag (sometimes called air resistance, a type of friction, or fluid resistance, another type of friction or fluid friction) is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid. This can exist between two fluid layers (or surfaces) or between a fluid and a solid surface. Unlike other resistive forces, such as dry friction, which are nearly independent of velocity, the drag force depends on velocity. Drag force is proportional to the velocity for low-speed flow and the squared velocity for high speed flow, where the distinction between low and high speed is measured by the Reynolds number. Even though the ultimate cause of drag is viscous friction, turbulent drag is independent of viscosity. Drag forces always tend to decrease fluid velocity relative to the solid object in the fluid's path. Examples Examples of drag include the component of the net aerodynamic or hydrodynamic force acting opposite to the di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stall (flight)
In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack increases.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', p. 486. Aviation Supplies & Academics, 1997. This occurs when the critical angle of attack of the foil is exceeded. The critical angle of attack is typically about 15°, but it may vary significantly depending on the fluid, foil, and Reynolds number. Stalls in fixed-wing flight are often experienced as a sudden reduction in lift as the pilot increases the wing's angle of attack and exceeds its critical angle of attack (which may be due to slowing down below stall speed in level flight). A stall does not mean that the engine(s) have stopped working, or that the aircraft has stopped moving—the effect is the same even in an unpowered glider aircraft. Vectored thrust in aircraft is used to maintain altitude or controlled flight with wings stalled by replacing lost wing lift with engine or propeller t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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