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SAM-N-2 Lark
The Lark project was a solid-fuel boosted, liquid-fueled surface-to-air missile developed by the United States Navy to meet the kamikaze threat. It was developed as a crash program to introduce a medium-range defensive layer that would attack targets between the long-range combat air patrols and short-range anti-aircraft artillery. This produced a design with roughly maximum range and subsonic performance, suitable for attacks against Japanese aircraft. With the ending of the war, interest in Lark waned. But critical was the introduction of jet-powered medium bombers that Lark would be incapable of effectively countering. By this time, several hundred Larks had been built to test various guidance systems, and these were mostly expended in various test programs. During one of these, a Convair-built airframe scored the first successful United States surface-to-air missile interception of a flying target in January 1950. History Concept The US Navy and Royal Navy were subjec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Air Station Point Mugu
Naval Air Station Point Mugu was a United States naval air station near Oxnard, California, which operated as an independent base from 1941 to 2000, when it merged with nearby Naval Construction Battalion Center Port Hueneme to form Naval Base Ventura County. History The facility in Point Mugu, California, started as a United States Navy anti-aircraft training center during World War II and was developed in the late 1940s as the Navy's major missile development and test facility. This was where most of the Navy's missiles were developed and tested during the 1950/1960 era, including the AIM-7 Sparrow family and the AIM-54 Phoenix air-to-air, Bullpup air-to-surface, and Regulus surface-to-surface missiles. Pt. Mugu has dominated the area since the 1940s, and is one of the few places in the area that is not agricultural. The base has been home to many ordnance testing programs, and the test range extends offshore to the Navy-owned San Nicolas Island in the Channel Island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of its active battle fleet alone exceeding the next 13 navies combined, including 11 allies or partner nations of the United States as of 2015. It has the highest combined battle fleet tonnage (4,635,628 tonnes as of 2019) and the world's largest aircraft carrier fleet, with eleven in service, two new carriers under construction, and five other carriers planned. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the United States Navy is the third largest of the United States military service branches in terms of personnel. It has 290 deployable combat vessels and more than 2,623 operational aircraft . The United States Navy traces its origins to the Continental Navy, which was established during the American R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nose Cone Design
Given the problem of the aerodynamic design of the nose cone section of any vehicle or body meant to travel through a compressible fluid medium (such as a rocket or aircraft, missile, shell or bullet), an important problem is the determination of the nose cone geometrical shape for optimum performance. For many applications, such a task requires the definition of a solid of revolution shape that experiences minimal resistance to rapid motion through such a fluid medium. Nose cone shapes and equations General dimensions In all of the following nose cone shape equations, is the overall length of the nose cone and is the radius of the base of the nose cone. is the radius at any point , as varies from , at the tip of the nose cone, to . The equations define the two-dimensional profile of the nose shape. The full body of revolution of the nose cone is formed by rotating the profile around the centerline . While the equations describe the 'perfect' shape, practical nose cones ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bureau Of Aeronautics
The Bureau of Aeronautics (BuAer) was the U.S. Navy's material-support organization for naval aviation from 1921 to 1959. The bureau had "cognizance" (''i.e.'', responsibility) for the design, procurement, and support of naval aircraft and related systems. Aerial weapons, however, were under the cognizance of the Navy's Bureau of Ordnance (BuOrd). Origins The USN's first attempt for naval aviation began in 1908 when it conducted observations of the Wright Brothers aircraft at Fort Myer, Virginia.https://www.history.navy.mil/content/dam/nhhc/research/histories/naval-aviation/pdf/History%20(1).pdf First tests and Naval Aviation Corps The first test of an aircraft from naval vessel was in 1910 when a Curtiss Model D flown by Eugene Burton Ely took off from the USS Birmingham (CL-2) and again on USS Pennsylvania (ACR-4) in early 1911. These test was enough for the USN to establish naval aviation units in the summer of 1911. The purchase of the first naval aircraft in May 191 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvard Business School
Harvard Business School (HBS) is the graduate business school of Harvard University, a private research university in Boston, Massachusetts. It is consistently ranked among the top business schools in the world and offers a large full-time MBA program, management-related doctoral programs, and many executive education programs. It owns Harvard Business Publishing, which publishes business books, leadership articles, case studies, and the monthly ''Harvard Business Review''. It is also home to the Baker Library/Bloomberg Center. History The school was established in 1908. Initially established by the humanities faculty, it received independent status in 1910, and became a separate administrative unit in 1913. The first dean was historian Edwin Francis Gay (1867–1946). Yogev (2001) explains the original concept: :This school of business and public administration was originally conceived as a school for diplomacy and government service on the model of the French ''Ecole d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederic M
Frederic may refer to: Places United States * Frederic, Wisconsin, a village in Polk County * Frederic Township, Michigan, a township in Crawford County ** Frederic, Michigan, an unincorporated community Other uses * Frederic (band), a Japanese rock band * Frederic (given name), a given name (including a list of people and characters with the name) * Hurricane Frederic, a hurricane that hit the U.S. Gulf Coast in 1979 * Trent Frederic, American ice hockey player See also * Frédéric * Frederick (other) * Fredrik Fredrik is a masculine Germanic given name derived from the German name '' Friedrich'' or Friederich, from the Old High German ''fridu'' meaning "peace" and ''rîhhi'' meaning "ruler" or "power". It is the common form of Frederick in Norway, Finla ... * Fryderyk (other) {{disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whiz Kids (Department Of Defense)
Whiz Kids was a name given to a group of experts from RAND Corporation with which Robert McNamara surrounded himself in order to turn around the management of the United States Department of Defense (DoD) in the 1960s. The purpose was to shape a modern defense strategy in the Nuclear Age by bringing in economic analysis, operations research, game theory, computing, as well as implementing modern management systems to coordinate the huge dimension of operations of the DoD with methods such as the Planning, Programming, and Budgeting System ( PPBS). They were called the Whiz Kids recalling the group at Ford Motor Company that McNamara was part of a decade earlier. The group included (among others): * Harold Brown * Alain Enthoven * Steven Fenster * Patrick Gross * William Kaufmann * Jan Lodal * Howard Margolis * Frank Nicolai * Merton Joseph Peck * Charles O. Rossotti * Henry Rowen * John H. Rubel * Ivan Selin * Pierre Sprey * David Staiger * Adam Yarmolinsky * Richard Z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supersonic
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D-Day
The Normandy landings were the landing operations and associated airborne operations on Tuesday, 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as D-Day, it was the largest seaborne invasion in history. The operation began the liberation of France (and later western Europe) and laid the foundations of the Allied victory on the Western Front. Planning for the operation began in 1943. In the months leading up to the invasion, the Allies conducted a substantial military deception, codenamed Operation Bodyguard, to mislead the Germans as to the date and location of the main Allied landings. The weather on D-Day was far from ideal, and the operation had to be delayed 24 hours; a further postponement would have meant a delay of at least two weeks, as the invasion planners had requirements for the phase of the moon, the tides, and the time of day that meant only a few days each month wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Superiority
Aerial supremacy (also air superiority) is the degree to which a side in a conflict holds control of air power over opposing forces. There are levels of control of the air in aerial warfare. Control of the air is the aerial equivalent of command of the sea. Air power has increasingly become a powerful element of military campaigns; military planners view having an environment of at least air superiority as a necessity. Air supremacy allows increased bombing efforts, tactical air support for ground forces, paratroop assaults, airdrops and simple cargo plane transfers, which can move ground forces and supplies. Air power is a function of the degree of air superiority and numbers or types of aircraft, but it represents a situation that defies black-and-white characterization. The degree of a force's air control is a zero-sum game with its opponent's; increasing control by one corresponds to decreasing control by the other. Air forces unable to contest for air superiority or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operation Bumblebee
Operation Bumblebee was a US Navy effort to develop surface to air missiles (SAMs) to provide a mid-range layer of anti-aircraft defence, between anti-aircraft guns in the short range and fighter aircraft operating at long range. A major reason for the Bumblebee efforts was the need to attack bombers before they could launch standoff anti-shipping weapons, as these aircraft might never enter the range of the shipboard guns. Bumblebee originally concentrated on a ramjet powered design, and the initial Applied Physics Lab PTV-N-4 Cobra/BTV (Propulsion Test Vehicle/Burner Test Vehicle) was flown in October 1945. Cobra eventually emerged as the RIM-8 Talos, which entered service on 28 May 1958 aboard the light cruiser USS ''Galveston''. As part of the development program, several other vehicles were also developed. One of these developed into the RIM-2 Terrier, which entered operational status on 15 June 1956, two years before Talos; Terrier was first installed aboard the heavy cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allied Invasion Of Italy
The Allied invasion of Italy was the Allied amphibious landing on mainland Italy that took place from 3 September 1943, during the Italian campaign of World War II. The operation was undertaken by General Sir Harold Alexander's 15th Army Group (comprising General Mark W. Clark's American Fifth Army and General Bernard Montgomery's British Eighth Army) and followed the successful Allied Invasion of Sicily. The main invasion force landed around Salerno on 9 September on the western coast in Operation Avalanche, while two supporting operations took place in Calabria (Operation Baytown) and Taranto (Operation Slapstick). Background Allied plan Following the defeat of the Axis Powers in North Africa in May 1943, there was disagreement between the Allies about the next step. British Prime Minister Winston Churchill wanted to invade Italy, which in November 1942 he had called "the soft underbelly of the axis" (American General Mark W. Clark would later call it "one tough gut"). C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
