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Edward Fennessy
Sir Edward Fennessy CBE (17 January 1912 – 21 November 2009) was an English electronics engineer who helped lead several developments of early radar systems under Robert Watson-Watt and went on to lead development of a variety of radio navigation systems. In the post-war era he led the development of the Decca Navigator System and the company's subsequent expansion to become a leader in maritime radar systems. He later worked for Plessey before becoming a managing director of British Telecommunications Research and then becoming deputy chairman of the General Post Office. He is also known as the recruiter of Arthur C Clarke as a radar technician during the war. Before the war Fennessy was born in West Ham, Essex and educated at St Bonaventure's Grammar School in Forest Gate. His early academic career was not spectacular, and he graduated with a second-class degree from East London College in 1934. He had been active experimenting with electrical equipment starting at the ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Fennessy
Sir Edward Fennessy CBE (17 January 1912 – 21 November 2009) was an English electronics engineer who helped lead several developments of early radar systems under Robert Watson-Watt and went on to lead development of a variety of radio navigation systems. In the post-war era he led the development of the Decca Navigator System and the company's subsequent expansion to become a leader in maritime radar systems. He later worked for Plessey before becoming a managing director of British Telecommunications Research and then becoming deputy chairman of the General Post Office. He is also known as the recruiter of Arthur C Clarke as a radar technician during the war. Before the war Fennessy was born in West Ham, Essex and educated at St Bonaventure's Grammar School in Forest Gate. His early academic career was not spectacular, and he graduated with a second-class degree from East London College in 1934. He had been active experimenting with electrical equipment starting at the ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Air Force
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 the Royal Naval Air Service (RNAS). Following the Allied victory over the Central Powers in 1918, the RAF emerged as the largest air force in the world at the time. Since its formation, the RAF has taken a significant role in British military history. In particular, it played a large part in the Second World War where it fought its most famous campaign, the Battle of Britain. The RAF's mission is to support the objectives of the British Ministry of Defence (MOD), which are to "provide the capabilities needed to ensure the security and defence of the United Kingdom and overseas territories, including against terrorism; to support the Government's foreign policy objectives particularly in promoting international peace and security". The R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BIGOT List
A BIGOT list (or bigot list) is a list of personnel possessing appropriate security clearance and who are cleared to know details of a particular operation, or other sensitive information. Etymology There are two slightly differing, but related, etymologies for the origin of the term: One common etymology is that BIGOT is a reversal of the codewords "TO GIB", meaning "To Gibraltar". The context of this etymology is the Allied invasion of North Africa in November 1942: "TO GIB" was stamped on the orders of military and intelligence staff travelling from Britain to North Africa to prepare for the operation. The majority of personnel made a dangerous journey by sea, through areas patrolled by German U-boats, however certain individuals whose contribution to the campaign or whose mission was vital were classified "BIGOT", and were flown to Africa on a safer route via Gibraltar. Several sources state that BIGOT was a codeword for Operation Overlord, the Western Allies' plan to invade ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Provost Marshal
Provost marshal is a title given to a person in charge of a group of Military Police (MP). The title originated with an older term for MPs, '' provosts'', from the Old French ''prévost'' (Modern French ''prévôt''). While a provost marshal is now usually a senior commissioned officer, they may be a person of any rank who commands any number of MPs; historically, the title was sometimes applied to civilian officials, especially under conditions of martial law, or when a military force had day-to-day responsibility for some or all aspects of civilian law enforcement (such as some British colonies). A provost marshal may also oversee security services, imprisonment, fire/emergency services and ambulances. British Armed Forces In the British Armed Forces, the provost marshal is the head of the military police of each service, with the senior military police officers at lower levels being titled deputy or assistant provost marshals. In many cases the provost marshal is in charge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Normandy
Normandy (; french: link=no, Normandie ; nrf, Normaundie, Nouormandie ; from Old French , plural of ''Normant'', originally from the word for "northman" in several Scandinavian languages) is a geographical and cultural region in Northwestern Europe, roughly coextensive with the historical Duchy of Normandy. Normandy comprises mainland Normandy (a part of France) and the Channel Islands (mostly the British Crown Dependencies). It covers . Its population is 3,499,280. The inhabitants of Normandy are known as Normans, and the region is the historic homeland of the Norman language. Large settlements include Rouen, Caen, Le Havre and Cherbourg. The cultural region of Normandy is roughly similar to the historical Duchy of Normandy, which includes small areas now part of the departments of Mayenne and Sarthe. The Channel Islands (French: ''Îles Anglo-Normandes'') are also historically part of Normandy; they cover and comprise two bailiwicks: Guernsey and Jersey, which are B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Coastal Command
RAF Coastal Command was a formation within the Royal Air Force (RAF). It was founded in 1936, when the RAF was restructured into Fighter, Bomber and Coastal Commands and played an important role during the Second World War. Maritime Aviation had been neglected in the inter-war period, due to disagreements between the Royal Navy (RN) and RAF over the ownership, roles and investment in maritime air power. The Admiralty's main concern until 1937 was the return of the Fleet Air Arm to the Royal Navy while the RAF prioritised the development of a bombing force to provide a deterrent. Coastal Command was referred to as the "Cinderella Service" by A V Alexander, the First Lord of the Admiralty in November 1940. Soon after RAF Coastal Area was elevated to Coastal Command, its headquarters moved from Lee-on-Solent to Northwood in northwest London. During the Second World War, Coastal Command's most important contribution was the protection of Allied convoys from attacks by the Germ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luftwaffe
The ''Luftwaffe'' () was the aerial-warfare branch of the German ''Wehrmacht'' before and during World War II. Germany's military air arms during World War I, the ''Luftstreitkräfte'' of the Imperial Army and the '' Marine-Fliegerabteilung'' of the Imperial Navy, had been disbanded in May 1920 in accordance with the terms of the 1919 Treaty of Versailles which banned Germany from having any air force. During the interwar period, German pilots were trained secretly in violation of the treaty at Lipetsk Air Base in the Soviet Union. With the rise of the Nazi Party and the repudiation of the Versailles Treaty, the ''Luftwaffe''s existence was publicly acknowledged on 26 February 1935, just over two weeks before open defiance of the Versailles Treaty through German rearmament and conscription would be announced on 16 March. The Condor Legion, a ''Luftwaffe'' detachment sent to aid Nationalist forces in the Spanish Civil War, provided the force with a valuable testing grou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonne (navigation)
Sonne (German for "sun") was a radio navigation system developed in Germany during World War II. It was developed from an earlier experimental system known as ''Elektra'', and therefore the system is also known as Elektra-sonnen. When the British learned of the system they started using it as well, under the name Consol, meaning "by the sun". Elektra was an updated version of the beam-based low-frequency radio range (LFR) used in the United States during the 1930s. This was further modified to create Sonne by electronically rotating the signal to create a series of beams sweeping across the sky. Using simple timing of the signal, the navigator could determine the angle to the station. Two such measurements then provided a radio fix. Accuracy and range were excellent, with fixes around ¼ of a degree being possible at range. Sonne was so useful that it found widespread use by UK forces as well, and they took over operation after the war. The system was used for long-range navigatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oboe (navigation)
Oboe was a British bomb aiming system developed to allow their aircraft to bomb targets accurately in any type of weather, day or night. Oboe coupled radar tracking with radio transponder technology. The guidance system used two well separated radar stations to track the aircraft. Each Oboe tracking station used radio ranging to define a circle, the radius of which was the distance from the station to the target, the third point in the triangulation. The two circles intersected at the target. Radar pulses from each station were picked up by a transponder mounted in the aircraft. The aircraft transponder transmitted the signals back to the stations, after a slight delay. By assessing the time it took for the signal to return the distance between the station and the aircraft could be determined. One tracking station, the Cat station, was used to adjust the aircraft's flight path. The other station, the Mouse, was used to key the bomb release point. Oboe, in essence, was a ground- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gee (navigation)
Gee, sometimes written GEE, was a radio navigation system used by the Royal Air Force during World War II. It measured the time delay between two radio signals to produce a fix, with accuracy on the order of a few hundred metres at ranges up to about . It was the first hyperbolic navigation system to be used operationally, entering service with RAF Bomber Command in 1942. Gee was devised by Robert Dippy as a short-range blind landing system to improve safety during night operations. During development by the Telecommunications Research Establishment (TRE) at Swanage, the range was found to be far better than expected. It then developed into a long-range, general navigation system. For large, fixed targets, such as the cities that were attacked at night, Gee offered enough accuracy to be used as an aiming reference without the need to use a bombsight or other external references. Jamming reduced its usefulness as a bombing aid, but it remained in use as a navigational aid in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malvern, Worcestershire
Malvern is a spa town and civil parish in Worcestershire, England. It lies at the foot of the Malvern Hills, a designated Area of Outstanding Natural Beauty. The centre of Malvern, Great Malvern, is a historic conservation area, which grew dramatically in Victorian times due to the natural mineral water springs in the vicinity, including Malvern Water. At the 2011 census it had a population of 29,626. It includes Great Malvern on the steep eastern flank of the Malvern Hills, as well as the former independent urban district of Malvern Link. Many of the major suburbs and settlements that comprise the town are separated by large tracts of open common land and fields, and together with smaller civil parishes adjoining the town's boundaries and the hills, the built up area is often referred to collectively as The Malverns. Archaeological evidence suggests that Bronze Age people had settled in the area around 1000 BC, although it is not known whether these settlements were permane ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications Research Establishment
The Telecommunications Research Establishment (TRE) was the main United Kingdom research and development organization for radio navigation, radar, infra-red detection for heat seeking missiles, and related work for the Royal Air Force (RAF) during World War II and the years that followed. It was regarded as "the most brilliant and successful of the English wartime research establishments" under "Rowe, who saw more of the English scientific choices between 1935 and 1945 than any single man." The name was changed to Radar Research Establishment in 1953, and again to the Royal Radar Establishment in 1957. This article covers the precursor organizations and the Telecommunications Research Establishment up to the time of the name change. The later work at the site is described in the separate article about RRE. History TRE is best known for work on defensive and offensive radar. TRE also made substantial contributions to radio-navigation and to jamming enemy radio-navigation. Rad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
