|
Frank Irving
Frank Irving (7 April 1925 – August 2005) was a British aeronautical engineer, glider pilot, author and university lecturer. Early life and education Francis George Irving was born in Liverpool, United Kingdom. He attended St. Edward's College, and then Liverpool University. Aeronautics Irving graduated from Liverpool University in 1944 with a First in Engineering. After graduation, he worked as a civilian flight test observer at the Aeroplane and Armament Experimental Establishment at Boscombe Down, Wiltshire. In 1945 he completed the course for civilian observers at the Empire Test Pilots School. He began lecturing in aeronautical engineering at Imperial College London in 1947 and continued until his retirement. He was Warden of Beit Hall, a hall of residence for students of Imperial College, from 1950 to 1975. He eventually became a Senior Lecturer in the field of performance, stability and control of aircraft. He authored ''An Introduction to the Longitudinal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gliding
Gliding is a recreational activity and competitive air sport in which pilots fly unpowered aircraft known as gliders or sailplanes using naturally occurring currents of rising air in the atmosphere to remain airborne. The word ''soaring'' is also used for the sport. Gliding as a sport began in the 1920s. Initially the objective was to increase the duration of flights but soon pilots attempted cross-country flights away from the place of launch. Improvements in aerodynamics and in the understanding of weather phenomena have allowed greater distances at higher average speeds. Long distances are now flown using any of the main sources of rising air: ridge lift, thermals and lee waves. When conditions are favourable, experienced pilots can now fly hundreds of kilometres before returning to their home airfields; occasionally flights of more than are achieved. Some competitive pilots fly in races around pre-defined courses. These gliding competitions test pilots' abilities to mak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calais
Calais ( , , traditionally , ) is a port city in the Pas-de-Calais department, of which it is a subprefecture. Although Calais is by far the largest city in Pas-de-Calais, the department's prefecture is its third-largest city of Arras. The population of the city proper is 72,929; that of the urban area is 149,673 (2018).Comparateur de territoire: Aire d'attraction des villes 2020 de Calais (073), Commune de Calais (62193) INSEE Calais overlooks the Strait of Dover, the narrowest point in the |
British Aerospace Engineers
British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, the English language as spoken and written in the United Kingdom or, more broadly, throughout the British Isles * Celtic Britons, an ancient ethno-linguistic group * Brittonic languages, a branch of the Insular Celtic language family (formerly called British) ** Common Brittonic, an ancient language Other uses *''Brit(ish)'', a 2018 memoir by Afua Hirsch *People or things associated with: ** Great Britain, an island ** United Kingdom, a sovereign state ** Kingdom of Great Britain (1707–1800) ** United Kingdom of Great Britain and Ireland (1801–1922) See also * Terminology of the British Isles * Alternative names for the British * English (other) * Britannic (other) * British Isles * Brit (other) * B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alumni Of The University Of Liverpool
Alumni (singular: alumnus (masculine) or alumna (feminine)) are former students of a school, college, or university who have either attended or graduated in some fashion from the institution. The feminine plural alumnae is sometimes used for groups of women. The word is Latin and means "one who is being (or has been) nourished". The term is not synonymous with "graduate"; one can be an alumnus without graduating ( Burt Reynolds, alumnus but not graduate of Florida State, is an example). The term is sometimes used to refer to a former employee or member of an organization, contributor, or inmate. Etymology The Latin noun ''alumnus'' means "foster son" or "pupil". It is derived from PIE ''*h₂el-'' (grow, nourish), and it is a variant of the Latin verb ''alere'' "to nourish".Merriam-Webster: alumnus .. Separate, but from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ann Welch
Ann Courtenay Welch OBE, née Edmonds, (20 May 1917 – 5 December 2002) was a pilot who received the Gold Air Medal from Fédération Aéronautique Internationale (FAI) for her contributions to the development of four air sports - gliding, hang gliding, paragliding and microlight flying. She flew as a ferry pilot in the Air Transport Auxiliary during the Second World War. Early life Welch was born in London; the daughter of a railway engineer. As a child, Ann (Edmonds) kept a diary listing every aeroplane that flew over the house. She first flew with Alan Cobham in 1930. After she had acquired a motorbike to visit the local aerodrome, she learned to fly, earning her pilot's licence in 1934 one month after her seventeenth birthday. From an early age she excelled in drawing and painting, and was a painter of note. Pre-war and World War II Welch started gliding in 1937 and attended an Anglo-German Fellowship Camp at the London Gliding Club meeting Wolf Hirth and Hanna Reitsch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sigma (sailplane)
The Sigma is an experimental glider developed in Britain from 1966 by a team led by Nicholas Goodhart. After disappointing performance during flight testing the Sigma was passed on to a Canadian group which carried out modifications, making the Sigma more competitive. Design and development Designed to compete in the 1970 World Championships, the team aimed to develop a wing that would climb well through a high lift coefficient and a large wing area, but equally had the "maximum possible reduction of area for cruise at low lift coefficients". At the same time for the minimum possible drag they aimed for "extensive" laminar flow. To achieve this they employed flaps that would alter both wing area and wing camber. Based on analysis of the nature of thermals encountered in cross-country flying, they reasoned that by having a slow turning circle, their sailplane could stay close to the central (and strongest) part of the thermal and gain maximum benefit. Its unusual feature is its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variometer
In aviation, a variometer – also known as a rate of climb and descent indicator (RCDI), rate-of-climb indicator, vertical speed indicator (VSI), or vertical velocity indicator (VVI) – is one of the flight instruments in an aircraft used to inform the pilot of the rate of descent or climb.Federal Aviation Administration, ''Glider Flying Handbook'', Skyhorse Publishing Inc., 2007 pages 4-7 and 4-8 It can be calibrated in metres per second, feet per minute (1 ft/min = 0.00508 m/s) or knots (1 kn ≈ 0.514 m/s), depending on country and type of aircraft. It is typically connected to the aircraft's external static pressure source. In powered flight, the pilot makes frequent use of the VSI to ascertain that level flight is being maintained, especially during turning maneuvers. In gliding, the instrument is used almost continuously during normal flight, often with an audible output, to inform the pilot of rising or sinking air. It is usual for gliders to be e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variometer
In aviation, a variometer – also known as a rate of climb and descent indicator (RCDI), rate-of-climb indicator, vertical speed indicator (VSI), or vertical velocity indicator (VVI) – is one of the flight instruments in an aircraft used to inform the pilot of the rate of descent or climb.Federal Aviation Administration, ''Glider Flying Handbook'', Skyhorse Publishing Inc., 2007 pages 4-7 and 4-8 It can be calibrated in metres per second, feet per minute (1 ft/min = 0.00508 m/s) or knots (1 kn ≈ 0.514 m/s), depending on country and type of aircraft. It is typically connected to the aircraft's external static pressure source. In powered flight, the pilot makes frequent use of the VSI to ascertain that level flight is being maintained, especially during turning maneuvers. In gliding, the instrument is used almost continuously during normal flight, often with an audible output, to inform the pilot of rising or sinking air. It is usual for gliders to be e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organisation Scientifique Et Technique Du Vol à Voile
Organisation Scientifique et Technique du Vol à Voile (OSTIV) is a body associated with the FAI Gliding Commission (IGC). The FAI IGC oversees the sport of gliding worldwide and is a department of the Fédération Aéronautique Internationale (FAI). In 1930 the first international soaring organization, ISTUS, (Internationale Studienkommission für den motorlosen Flug) was formed with the objective of the furtherance of development of soaring in science and technical aspects by "exchanging experience and friendly cooperation among the specialists and pilots of all nations engaged in soaring". This objective was continued after World War II by the formation of OSTIV. OSTIV's aim is also the furtherance of the technical development of soaring by the sharing of experience by glider manufacturers and glider pilots. It was formed as the successor of ISTUS on 27 July 1948 at Samedan, Switzerland. Its sections include the Meterorological Panel, the Sailplane Development Panel and the Tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Gliding Association
The British Gliding Association (BGA) is the governing body for gliding in the United Kingdom. Gliding in the United Kingdom operates through 80 gliding clubs (both civilian and service) which have 2,310 gliders and 9,462 full flying members (including service personnel), though a further 17,000 people have gliding air-experience flights each year. History A gliding event first occurred in the UK on a hill at Itford in East Sussex in 1922. The meeting was largely a publicity stunt by the ''Daily Mail'' newspaper which had offered a prize of one thousand pounds for the longest flight. However little gliding happened in the UK for several years after until reports of long flights in thunderstorms in Germany appeared in ''The Aeroplane'' magazine. Douglas Culver suggested a lunch meeting at the Comedy Restaurant in London on 4 December 1929 for anybody who was interested. Fifty-six people attended and a committee was formed. Shortly after the BGA was founded to start the spor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FAI Gliding Commission
The International Gliding Commission (IGC) is the international governing body for the sport of gliding. It is governed by meetings of delegates from national gliding associations. It is one of several Air Sport Commissions (ASC) of the Fédération Aéronautique Internationale (FAI), or "World Air Sports Federation". FAI is the world body for sporting aviation and the certification of world records for aeronautics and astronautics and was founded in 1905. When the IGC was founded in 1932, it was called CIVV (Commission Internationale de Vol à Voile) and has also been called CVSM (Commission de Vol Sans Moteur). It is the FAI commission responsible for the international competitions, records and badges that apply to gliders and motor gliders. The term "sailplanes" is sometimes used. Hang gliders and paragliders have a separate body called the FAI CIVL Commission, which stands for "Commission Internationale de Vol Libre". The World Gliding Championships are organised every tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lee Wave
In meteorology, lee waves are atmospheric stationary waves. The most common form is mountain waves, which are atmospheric internal gravity waves. These were discovered in 1933 by two German glider pilots, Hans Deutschmann and Wolf Hirth, above the Krkonoše. They are periodic changes of atmospheric pressure, temperature and orthometric height in a current of air caused by vertical displacement, for example orographic lift when the wind blows over a mountain or mountain range. They can also be caused by the surface wind blowing over an escarpment or plateau, or even by upper winds deflected over a thermal updraft or cloud street. The vertical motion forces periodic changes in speed and direction of the air within this air current. They always occur in groups on the lee side of the terrain that triggers them. Sometimes, mountain waves can help to enhance precipitation amounts downwind of mountain ranges. Usually a turbulent vortex, with its axis of rotation parallel to the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
