A circularly disposed antenna array ( CDAA ), sometimes referred to as a circularly disposed dipole array ( CDDA ) or a wullenweber , is a large circular antenna array used for radio direction finding . They are used by military and government agencies to triangulate radio signals for radio navigation, intelligence gathering, search and rescue, and enforcement of broadcasting laws. Because their huge circular reflecting screens look like circular fences, some antennas have been colloquially referred to as " elephant cages ". The term " wullenwever " was the World War II German cover term used to identify their secret CDAA research and development program; its name is unrelated to any person involved in the program.
69-441: CDDA may refer to: Circularly disposed dipole array , a large circular antenna used by the military Compact Disc Digital Audio (CD-DA), an audio recording format Company Directors Disqualification Act 1986 , a piece of UK company law, which sets out the procedureschdc for company directors to be disqualified in certain cases of misconduct. Common Database on Designated Areas ,
138-664: A Technical Director for the northern Germany official broadcast ( Norddeutscher Rundfunk (NDR) ). Technical team leaders were Dr. Joachim Pietzner, Dr. Hans Schellhoss, and Dr. Maximilian Wächtler. The last was a founder of Plath GmbH in 1954 and later a consultant to both Plath and Telefunken. The first Wullenwever was built during the war at Skibsby, north-east of the city of Hjørring (in German: Hjörring), Denmark ( 57°29′10″N 10°00′38″E / 57.48611°N 10.01056°E / 57.48611; 10.01056 ). It used 40 vertical radiator elements, placed on
207-536: A contract to build a larger CDAA — the AN/FLR-9 antenna receiving system — was awarded by the U.S. Air Force to GT&E Sylvania Electronics Systems (now General Dynamics Mission Systems). The first FLR-9 was installed at RAF Chicksands ( 52°02′39″N 0°23′21″W / 52.0443°N 0.389182°W / 52.0443; -0.389182 ) in the United Kingdom in 1962. The second FLR-9
276-1186: A crucial role in the establishment of NASA and the success of the Apollo missions to the Moon. Operation Paperclip was part of a broader strategy by the US to harness German scientific talent in the face of emerging Cold War tensions, and ensuring this expertise did not fall into the hands of the Soviet Union or other nations. The operation's legacy has remained controversial in subsequent decades. In February 1945, Supreme Headquarters Allied Expeditionary Force (SHAEF) set up T-Force , or Special Sections Subdivision, which grew to over 2,000 personnel by June. T-Force examined 5,000 German targets, seeking expertise in synthetic rubber and oil catalysts, new designs in armored equipment, V-2 (rocket) weapons, jet and rocket propelled aircraft, naval equipment, field radios, secret writing chemicals, aero medicine research, gliders, and "scientific and industrial personalities". When large numbers of German scientists began to be discovered by
345-527: A database of the European Environment Agency (EEA) about nationally designated sites, nature protection sites such as national parks and nature reserves Cataclysm: Dark Days Ahead , an open source post-apocalyptic survival roguelike video game Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title CDDA . If an internal link led you here, you may wish to change
414-430: A few miles southwest of Bondville, IL. The array consisted of a ring of 120 vertical monopoles covering 2–20 MHz. Tall wood poles supported a 1,000-foot diameter (300 m) circular screen of vertical wires located within the ring of monopoles. His research is still used today to guide the design and site selection of HF/DF arrays. Records of his research are available in the university's archives. Hayden
483-542: A member in 2006. Other closely related members include Willy Ley (1976), a German-American science writer, and Hermann Oberth (1976), a German scientist who advised von Braun's rocket team in the U.S. from 1955 to 1958; neither Ley, nor Oberth moved to the US via the Operation Paperclip. Two lunar craters are named after Paperclip scientists: Debus after Kurt Debus , the first director of NASA's Kennedy Space Center , and von Braun . Dr. Adolf Busemann
552-633: A program to resettle the evacuees in the Third World , which the Germans referred to as General Walsh's Urwald-Programm ("jungle program"); but the program was not carried out. In 1948, the evacuees received settlements of 69.5 million Reichsmarks from the U.S., a settlement that soon became severely devalued during the currency reform that introduced the Deutsche Mark as the official currency of western Germany. John Gimbel concludes that
621-479: A wealth of scientific talent and advanced research that had contributed to Germany's wartime technological advancements. The U.S. Joint Chiefs of Staff officially established Operation Overcast (operations "Overcast" and "Paperclip" were related, and the terms are often used interchangeably) on July 20, 1945, with the dual aims of leveraging German expertise for the ongoing war effort against Japan and to bolster U.S. postwar military research. The operation, conducted by
690-523: A young engineer in the University of Illinois Radio Direction Finding Research Group, led the reassembly of the Wullenweber , studied the design and performance of HF/DF arrays and researched the physics of HF/DF under contract to the U.S. Navy from 1947 through 1960. Hayden led the design and development of a large circularly disposed array at the university's Bondville Road Field Station,
759-844: Is known for developing rocket and space-flight technology, including the V-2 missile . In late 1932, he worked for the German army to develop new liquid propulsion -based missiles. He received a doctorate in physics in 1934 from the Friedrich-Wilhelms University of Berlin . He and his team then surrendered to the Allies at the end of World War II, shortly after Hitler's suicide in 1945. They were brought to America through Operation Paperclip and assimilated into NASA 's space program, where they worked on missile technology at Fort Bliss before transferring to Huntsville, Alabama . He became
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#1732787107502828-705: The Japanese war and to aid our postwar military research". The term "Overcast" was the name first given by the German scientists' family members for the housing camp where they were held in Bavaria . In late summer 1945, the JCS established the JIOA, a subcommittee of the Joint Intelligence Community, to directly oversee Operation Overcast and later Operation Paperclip. The JIOA representatives included
897-565: The Joint Intelligence Objectives Agency (JIOA), was largely actioned by special agents of the U.S. Army 's Counterintelligence Corps (CIC). Many selected scientists were involved in the Nazi rocket program, aviation, or chemical/biological warfare. The Soviet Union conducted a similar program, called Operation Osoaviakhim , that emphasized many of the same fields of research. The operation, characterized by
966-775: The Lunar Roving Vehicle . However, the main projects from the Marshall Space Flight Center were the V-2 rocket and the Apollo missions. The V-2 rocket was developed in Germany at the Peenemünde military research center. Wernher von Braun was the director of Peenemünde and worked with a team of engineers, physicists, and chemists. The Nazis used the V-2 missile during World War II to attack Paris,
1035-518: The Office of Military Government, United States (OMGUS), which had jurisdiction over the western part of occupied Germany, held a conference to consider the status of the evacuees, the monetary claims that the evacuees had filed against the United States, and the "possible violation by the U.S. of laws of war or Rules of Land Warfare ". The OMGUS director of Intelligence Robert L. Walsh initiated
1104-459: The USSR after the war. At least 30 Krug (Russian for circle) arrays were installed all over the Soviet Union and allied countries in the 1950s, well before the U.S. military became interested and developed their CDAAs. Several Krugs were installed in pairs less than 10 kilometers from each other, apparently for radio navigation purposes. At least four Krugs were installed near Moscow; just to
1173-778: The intellectual reparations owed to the US and the UK, valued at US$ 10 billion in patents and industrial processes. The NASA Distinguished Service Medal is the highest award which may be bestowed by the National Aeronautics and Space Administration (NASA). After more than two decades of service and leadership in NASA, four Nazi members from Operation Paperclip were awarded the NASA Distinguished Service Medal in 1969: Kurt Debus , Eberhard Rees, Arthur Rudolph , and Wernher von Braun. Ernst Geissler
1242-598: The Allies (Hall 2022). In March 1946, a V-2 was test-fired in New Mexico, followed by the first launch of a captured V-2 in April of the same year. After months of adaptation, a V-2 missile was fired in White Sands Proving Ground, New Mexico that broke a record with an altitude of 116 miles (186.68 km). The V-2 rockets were used to test the effects of cosmic rays on fruit flies and seeds. They also took
1311-587: The Braunschweig Laboratory. He gave a speech in 1935 at the Volta Congress, an international meeting on the problems of high-speed aeronautics. At this conference, he presented his first theory of how the angle of sweep of a plane wing reduces drag at supersonic speed. After the war, he traveled to the United States to assist them with the war tensions with Russia, where he continued his work on his theory of wing sweep. Wernher von Braun
1380-602: The British and then destroyed following the war in accordance with the Geneva Convention. Dr. Wächtler arranged to have a second array built, at Telefunken expense, at Langenargen/Bodensee, for further experimentation after the war. In the years following the war, the U.S. disassembled the Langenargen / Bodensee array and brought it back to the U.S., where it became known as the " Wullenweber " array. One of
1449-580: The CIOS was responsible for scouting and kidnapping high-profile individuals to block technological advancements in nations hostile to the U.S. Much U.S. effort was focused on Saxony and Thuringia , which on July 1, 1945, would become part of the Soviet Occupation zone . Many German research facilities and personnel had been evacuated to these states, particularly from the Berlin area. Fearing that
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#17327871075021518-608: The German antenna researchers, Dr. Rolf Wundt, was one of hundreds of German scientists taken to the U.S. by the Army after the war under Operation Paperclip . He arrived in New York in March ;1947 on the same ship as Wernher Von Braun and his wife and parents. He was first employed by the U.S. Air Force and then GT&E Sylvania Electronics Systems on CDAA and other antenna projects. Professor Edgar Hayden, then
1587-694: The German government began recalling from combat a number of scientists, engineers, and technicians to work in research and development to bolster German defense for a protracted war with the USSR. The recall from frontline combat included 4,000 rocketeers returned to Peenemünde , in northeast coastal Germany. Overnight, Ph.D.s were liberated from KP duty , masters of science were recalled from orderly service, mathematicians were hauled out of bakeries, and precision mechanics ceased to be truck drivers. The Nazi government's recall of their now-useful intellectuals for scientific work first required identifying and locating
1656-563: The Hanza array was decommissioned in 2006, the Canadian Armed Forces became the operators of one of the last two existing FRD-10 arrays. Later in the 1970s, Plessey (now Roke Manor Research Limited ) of the United Kingdom developed the smaller, more economical Pusher CDAA array. At least 25 Pusher CDAAs were installed in many countries around the world. Several Pusher arrays were installed in U.S. military facilities, where
1725-875: The Marshall Space Flight Center (MSFC) in Huntsville, Alabama after taking control of the Development Operations Division from the Army's Redstone Arsenal . The Redstone Arsenal was led by the Army Ballistic Missile Agency . Wernher von Braun became the first director of the MSFC. The MSFC's development team was formed by American engineers from the Redstone Arsenal and 118 German migrants who came from Peenemünde through Operation Paperclip. Von Braun worked with Operation Paperclip to get scientists from his team to
1794-840: The NSS receiver site at the Naval Communications Station in Cheltenham, Maryland. The Elmendorf array was decommissioned in May 2016 due to its age and unavailable repair parts. The U.S. Army awarded a contract in 1968 to F&M Systems to build AN/FLR-9 systems for USASA Field Station Augsburg , Germany, and Ramasun Station in Udon Thani , Thailand ( 17°17′31″N 102°52′06″E / 17.2919°N 102.8682°E / 17.2919; 102.8682 ). Both were installed in 1970. The Ramasun Station array
1863-460: The Nazi affiliations of many recruits, and the ethics of assimilating individuals associated with war crimes into American society. The operation was not solely focused on rocketry; efforts were directed toward synthetic fuels, medicine, and other fields of research. Notable advances in aeronautics fostered rocket and space-flight technologies pivotal in the Space Race . The operation played
1932-711: The Ordnance Rocket Center, its facility for rocket research and development. On April 1, 1950, the Fort Bliss missile development operation, including von Braun and his team of over 130 Paperclip members, was transferred to Redstone Arsenal. In early 1950, legal U.S. residency for some of the Project Paperclip specialists was effected through the U.S. consulate in Ciudad Juárez , Chihuahua , Mexico; thus, German scientists legally entered
2001-797: The Osenberg List stuffed in a toilet; the list subsequently reached MI6 , who transmitted it to U.S. intelligence . Then U.S. Army Major Robert B. Staver, Chief of the Jet Propulsion Section of the Research and Intelligence Branch of the United States Army Ordnance Corps , used the Osenberg List to compile his list of German scientists to be captured and interrogated; Wernher von Braun , Germany's best rocket scientist, headed Major Staver's list. In Operation Overcast, Major Staver's original intent
2070-647: The Rocket Branch of the Research and Development Division of the U.S. Army's Ordnance Corps, offered initial one-year contracts to the rocket scientists; 127 of them accepted. In September 1945, the first group of seven rocket scientists (aerospace engineers) arrived at Fort Strong on Long Island in Boston harbor: Wernher von Braun , Erich W. Neubert, Theodor A. Poppel, William August Schulze , Eberhard Rees , Wilhelm Jungert, and Walter Schwidetzky. Beginning in late 1945, three rocket-scientist groups arrived in
2139-495: The Soviet takeover would limit U.S. ability to exploit German scientific and technical expertise, and not wanting the Soviet Union to benefit from it, the United States instigated an "evacuation operation" of scientific personnel from Saxony and Thuringia, issuing orders such as: On orders of Military Government you are to report with your family and baggage as much as you can carry tomorrow noon at 1300 hours (Friday, 22 June 1945) at
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2208-569: The Space Camp Hall of Fame (which began in 2007): Wernher von Braun (2007), Georg von Tiesenhausen (2007), and Oscar Holderer (2008). The New Mexico Museum of Space History includes the International Space Hall of Fame. Two Operation Paperclip members are members of the International Space Hall of Fame: Wernher von Braun (1976) and Ernst Steinhoff (1979). Hubertus Strughold was inducted in 1978 but removed as
2277-741: The United States for duty at Fort Bliss , Texas, and at White Sands Proving Grounds , New Mexico , as "War Department Special Employees". In 1946, the United States Bureau of Mines employed seven German synthetic fuel scientists at a Fischer–Tropsch chemical plant in Louisiana , Missouri . On June 1, 1949, the Chief of Ordnance of the United States Army designated Redstone Arsenal in Huntsville, Alabama , as
2346-553: The United States from Latin America. Between 1945 and 1952, the United States Air Force sponsored the largest number of Paperclip scientists, importing 260 men, of whom 36 returned to Germany, and one, Walter Schreiber , emigrated to Argentina. The United States Army Signal Corps employed 24 specialists—including the physicists Georg Goubau , Gunter Guttwein, Georg Hass, Horst Kedesdy, and Kurt Lehovec ;
2415-677: The United States held some of Germany's best minds for three years, therefore depriving the German recovery of their expertise. In May 1945, the U.S. Navy "received in custody" Herbert A. Wagner , the inventor of the Hs 293 missile; for two years, he first worked at the Special Devices Center, at Castle Gould and at Hempstead House, Long Island, New York; in 1947, he moved to the Naval Air Station Point Mugu . In August 1945, Colonel Holger Toftoy , head of
2484-611: The United States. They began work at Fort Bliss in El Paso, Texas in September 1945, and most of the team had arrived by 1946. Von Braun and his team worked as consultants for the military until 1950 when they began transferring to Huntsville. Originally, the center focused on weaponry and further development of the V-2 rocket line but later became one of NASA's main development centers for space flight project. The team also worked on missions that related to Moon landing missions, such as
2553-547: The V-2 rocket. After capturing them, the Allies initially housed them and their families in Landshut , Bavaria, in southern Germany. Beginning on July 19, 1945, the U.S. Joint Chiefs managed the captured ARC rocketeers under Operation Overcast. However, when the "Camp Overcast" name of the scientists' quarters became locally known, the program was renamed Operation Paperclip in November 1945. Despite these attempts at secrecy,
2622-728: The advancing Allied forces in late April 1945, the Special Sections Subdivision set up the Enemy Personnel Exploitation Section to manage and interrogate them. The Enemy Personnel Exploitation Section established a detention center, Camp Dustbin , first near Paris and later in Kransberg Castle outside Frankfurt. The U.S. Joint Chiefs of Staff (JCS) established the first secret recruitment program, called Operation Overcast, on July 20, 1945, initially "to assist in shortening
2691-565: The arc of a circle with a diameter of 120 metres (390 ft). In an inner circle, 40 reflecting elements were placed behind the radiator elements, suspended from a structure of circular wooden support poles with a diameter of 112.5 meters. To more easily obtain true geographic bearings, the north and south elements were placed exactly on the north–south meridian. Although Pietzner, Schellhoss, and Wächtler retired in West Germany, some of their second-echelon technicians were taken to
2760-480: The army's director of intelligence, the chief of naval intelligence, the assistant chief of Air Staff-2 (air force intelligence), and a representative from the State Department . In November 1945, Operation Overcast was renamed Operation Paperclip by Ordnance Corps officers, who would attach a paperclip to the folders of those rocket experts whom they wished to employ in the United States. The project
2829-695: The array is known as the AN/FRD-13. In 1998 the Augsburg array ( 48°27′04″N 10°51′46″E / 48.45121°N 10.86275°E / 48.45121; 10.86275 )—located in Gablingen, a town in the north of Augsburg—was turned over to the Bundesnachrichtendienst . Technology enthusiasts, reporters, and even local politicians are still not admitted to the complex and there are few official statements about its purpose. The area
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2898-439: The director of the Marshall Space Flight Center in 1960. Von Braun is also a controversial figure for his involvement with the Nazi party and the slave labor involved in developing the V-2 rocket in Germany before it began to be developed in the United States. He became a member of the Nazi party in 1937 and was made a junior SS officer in 1940. In July 1960, the National Aeronautics and Space Administration (NASA) established
2967-426: The east closer to the American forces, to avoid the advancing Soviet army. A project to halt the research was codenamed "Project Safehaven"; it was not initially targeted against the Soviet Union but addressed the concern that German scientists might emigrate and continue their research in countries that had remained neutral during the war. To avoid the complications involved with the emigration of German scientists,
3036-458: The end of the war, particularly from the Berlin area. The USSR then relocated more than 2,200 Nazi specialists and their families—more than 6,000 people—with Operation Osoaviakhim during one night on October 22, 1946. In a secret directive circulated on September 3, 1946, President Truman officially approved Operation Paperclip and expanded it to include 1,000 German scientists under "temporary, limited military custody". News media revealed
3105-434: The field of astronautics by the American Institute of Aeronautics and Astronautics (AIAA). For their service, three Operation Paperclip members were awarded the Goddard Astronautics Award: Wernher von Braun (1961), Hans von Ohain (1966), and Krafft Arnold Ehricke (1984). The U.S. Space & Rocket Center in Huntsville, Alabama, owns and operates the U.S. Space Camp . Several Operation Paperclip members are members of
3174-404: The former Soviet Union and modern-day Russia , Germany , the United Kingdom , and the United States . CDAA technology was developed by the German navy communication research command, Nachrichtenmittelversuchskommando (NVK) and Telefunken , working on the Wullenweber during the early years of World War II . The inventor was NVK group leader Dr. Hans Rindfleisch, who worked after the war as
3243-418: The last completed in 1964 at NRRF Imperial Beach, CA. (Silver Strand) which was demolished in 2014. Due to their immense size, the location of the Bondville array ( 40°02′58″N 88°22′51″W / 40.0494°N 88.3807°W / 40.0494; -88.3807 ) and the other post-war antenna arrays are clearly visible in high-resolution aerial photography now available on the internet. Also in 1959,
3312-430: The later part of World War II, Germany was at a logistical disadvantage, having failed to conquer the USSR with Operation Barbarossa (June–December 1941), and its drive for the Caucasus (June 1942 – February 1943). The failed conquest had depleted German resources, and its military–industrial complex was unprepared to defend the Greater Germanic Reich against the Red Army's westward counterattack. By early 1943,
3381-435: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=CDDA&oldid=1188328700 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Circularly disposed dipole array Many such CDAA systems are used by many nations, such as
3450-420: The north, east and south ( 55°27′51″N 37°22′11″E / 55.46408°N 37.3698°E / 55.46408; 37.3698 ) of the city. The Krugs were used to track the early Sputnik satellites, using their 10 and 20 MHz beacons, and were instrumental in locating re-entry vehicles. The Soviet Krug arrays also use the 40-element CDAA configuration. The array in Skibsby was extensively studied by
3519-447: The physical chemists Rudolf Brill, Ernst Baars [ de ] , and Eberhard Both; the geophysicist Helmut Weickmann; the optician Gerhard Schwesinger; and the engineers Eduard Gerber, Richard Guenther, and Hans Ziegler . In 1959, 94 Operation Paperclip men went to the United States, including Friedwardt Winterberg and Friedrich Wigand. Overall, through its operations to 1990, Operation Paperclip imported 1,600 men as part of
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#17327871075023588-424: The port of Antwerp, and Great Britain, among many other targets. Roughly five thousand people died in these attacks. The location of V-2 production moved to Mittelwerk in Nordhausen after a British raid on Peenemünde on August 17, 1943. Mittelwerk was supplemented with slave labor from Dora, a nearby concentration camp. Production of the V-2 missile moved to the United States after Wernher von Braun surrendered to
3657-429: The press interviewed several of the scientists later that year. Early on, the United States created the Combined Intelligence Objectives Subcommittee (CIOS). This provided the information on targets for the T-Forces that went in and targeted scientific, military, and industrial installations (and their employees) for their know-how. Initial priorities were advanced technology, such as infrared , that could be used in
3726-505: The program as early as December 1946. On April 26, 1946, the Joint Chiefs of Staff issued directive JCS 1067/14 to General Eisenhower instructing that he "preserve from destruction and take under your control records, plans, books, documents, papers, files and scientific, industrial and other information and data belonging to ... German organizations engaged in military research"; and that, excepting war-criminals , German scientists be detained for intelligence purposes as required. In
3795-517: The recruitment of German specialists and their families, relocated more than 6000 experts to the US. It has been valued at US$ 10 billion in patents and industrial processes. Recruits included such notable figures as Wernher von Braun , a leading rocket-technology scientist. Those recruited were instrumental in the development of the U.S. space program and military technology during the Cold War . Despite its contributions to American scientific advances, Operation Paperclip has been controversial because of
3864-562: The scientists were gathered as a part of Operation Overcast, but most were transported to villages in the countryside where there were neither research facilities nor work; they were provided with stipends, and required to report twice weekly to police headquarters to prevent them from leaving. The Joint Chiefs of Staff directive on research and teaching stated that technicians and scientists should be released "only after all interested agencies were satisfied that all desired intelligence information had been obtained from them". On November 5, 1947,
3933-444: The scientists, engineers, and technicians, then ascertaining their political and ideological reliability. Werner Osenberg [ de ] , the engineer-scientist heading the Wehrforschungsgemeinschaft (Defense Research Association), recorded the names of the politically cleared men to the Osenberg List, thus reinstating them to scientific work. In March 1945, at Bonn University , a Polish laboratory technician found pieces of
4002-771: The town square in Bitterfeld . There is no need to bring winter clothing. Easily carried possessions, such as family documents, jewelry, and the like should be taken along. You will be transported by motor vehicle to the nearest railway station. From there you will travel on to the West. Please tell the bearer of this letter how large your family is. By 1947, this evacuation operation had netted an estimated 1,800 technicians and scientists and 3,700 family members. Those with special skills or knowledge were taken to detention and interrogation centers, such as one code-named " Dustbin " (located first at Chesnay , near Versailles and then moved to Kransberg Castle outside Frankfurt ) to be held and interrogated, in some cases for months. A few of
4071-441: The war against Japan; finding out what technology had been passed on to Japan; and finally to halt research elsewhere. Von Braun and more than a thousand of his colleagues decided to surrender to Americans in 1945. One of the engineers later recalled their options: "We despise the French, we are mortally afraid of the Soviets, we do not believe the British can afford us. So that leaves the Americans." On June 20, 1945, they moved from
4140-399: Was a secret United States intelligence program in which more than 1,600 German scientists, engineers, and technicians were taken from former Nazi Germany to the U.S. for government employment after the end of World War II in Europe , between 1945 and 1959; several were former members of the Nazi Party . The effort began in earnest in 1945, as the Allies advanced into Germany and discovered
4209-442: Was awarded the medal in 1973. The Department of Defense Distinguished Civilian Service Award is the highest civilian award given by the United States Department of Defense . After two decades of service, Nazi member from Operation Paperclip Siegfried Knemeyer was awarded the Department of Defense Distinguished Civilian Service Award in 1966. The Goddard Astronautics Award is the highest honor bestowed for notable achievements in
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#17327871075024278-439: Was born in Lubeck, Germany, in 1902. He graduated from the Carolo Wilhelmina Technical University in Braunschweig and received a Ph.D. in engineering in 1924. In 1925, the Max-Planck Institute invited him to become an official aeronautical research scientist, and in 1930, he became a professor at Georgia Augusta University in Goettingen. Busemann spent many years working for the German government, most notably directing research at
4347-619: Was closed and array was dismantled in 1977 in retribution for the suspension of U.S. military aid to Turkey. The Clark AB array was decommissioned after the Mt. Pinatubo volcano eruption in 1991. It was later converted into an outdoor amphitheater which is part of the Nayong Pilipino Clark theme park. Demolition of the Misawa FLR-9 began in October 2014. A pair of FRD-10s not equipped for HF/DF were installed in 1969 at NAVRADSTA(R) Sugar Grove, WV ( 38°30′46″N 79°16′44″W / 38.5129°N 79.2790°W / 38.5129; -79.2790 ), for naval HF communications, replacing
4416-547: Was dismantled in 1975 following base closure. During the 1970s, the Japanese government installed two large antenna arrays, similar to the FRD-10, at Chitose and Miho . The last two FRD-10 HF/DF arrays were installed in 1971 for the Canadian Forces in Gander, Newfoundland ( 48°57′04″N 54°31′31″W / 48.9511°N 54.5252°W / 48.9511; -54.5252 ) and Masset, British Columbia ( 54°01′44″N 132°03′55″W / 54.0288°N 132.0654°W / 54.0288; -132.0654 ). After
4485-493: Was greyed out in the map layers of Google Maps and Bing Maps. Therefore, it is believed to be still in service being used by BND and NSA as part of a larger complex of combined informational technology. Currently, the Strategic Reconnaissance Command of the German Armed Forces operates a circularly disposed array in Bramstedtlund with a diameter of 410 metres (1,350 ft) as one of its three stationary Sigint battalions. Operation Paperclip Operation Paperclip
4554-557: Was installed at San Vito dei Normanni Air Station ( 40°38′49″N 17°50′20″E / 40.64700°N 17.83900°E / 40.64700; 17.83900 ), Italy also in 1962. Following base closures, the arrays at Chicksands and San Vito were dismantled in 1996 and 1993, respectively. A second contract was awarded to Sylvania to install AN/FLR-9 systems at Misawa AB , Japan; Clark AB , Philippine Islands; Pakistan (never built); Elmendorf AFB , Alaska; and Karamürsel AS, Turkey. The last two were completed in 1966. The Karamürsel AS
4623-419: Was later employed by Southwest Research Institute where he continued to contribute to HF direction finding technology. In 1959, the U.S. Navy contracted with ITT Federal Systems to deploy a worldwide network of AN/FRD-10 HF/DF arrays based on lessons learned from the Bondville experimental array. The FRD-10 at NSGA Hanza, Okinawa was the first installed, in 1962, followed by eleven additional arrays, with
4692-407: Was not initially targeted against the Soviet Union; rather the concern was that German scientists might emigrate and continue their research in countries that remained neutral during the war. Much U.S. effort was focused on Saxony and Thuringia , which on July 1, 1945, became part of the Soviet occupation zone . Many German research facilities and personnel had been evacuated to these states before
4761-438: Was only to interview the scientists, but what he learned changed the operation's purpose. On May 22, 1945, he transmitted to the U.S. Department of War Colonel Joel Holmes' telegram urging the evacuation to America of 100 of the 400 German scientists in his custody, as most "important for [the] Pacific war " effort. Most of the Osenberg List engineers worked at the Baltic coast German Army Research Center Peenemünde , developing
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