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LTV A-7P Corsair II
The Portuguese Air Force (PoAF) operated 50 LTV A-7 Corsair II aircraft in the anti-ship, air interdiction and air defense roles between 1981 and 1999. The Portuguese government acquired the Corsair II to replace the PoAF's North American F-86 Sabre fighters, with two orders being placed for a total of 50 A-7P and TA-7P. As part of the program one TA-7C belonging to the United States Navy was also loaned to the PoAF. During its 18 years of service in the PoAF the A-7 fleet suffered 14 accidents and suffered from numerous maintenance and logistic problems in its last years of service due to the lack of spare parts and financial problems. Nevertheless, the program was seen as a success due to the evolution that it allowed the Air Force in aircraft maintenance, with focus in modern computer and electronic systems, and in the qualification of technicians and the modernization of the Portuguese military aviation industry. Acquisition The acquisition of the A-7P Corsair II was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Attack Aircraft
An attack aircraft, strike aircraft, or attack bomber is a tactical military aircraft that has a primary role of carrying out airstrikes with greater precision than bombers, and is prepared to encounter strong low-level air defenses while pressing the attack.Mortensen 1987, pp. 24–25. This class of aircraft is designed mostly for close air support and naval air-to-surface missions, overlapping the tactical bomber mission. Designs dedicated to non-naval roles are often known as ground-attack aircraft.Gunston 2009, p. 73. Fighter aircraft often carry out the attack role, although they would not be considered attack aircraft ''per se'', although fighter-bomber conversions of those same aircraft would be considered part of the class. Strike fighters, which have effectively replaced the fighter-bomber and light bomber concepts, also differ little from the broad concept of an attack aircraft. The dedicated attack aircraft as a separate class existed primarily during and after Wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dassault Mirage 5
The Dassault Mirage 5 is a French supersonic attack aircraft designed by Dassault Aviation during the 1960s and manufactured in France and a number of other countries. It was derived from Dassault's popular Mirage III fighter and spawned several variants of its own, including the IAI Kfir. Pakistani Mirage 5s are capable of nuclear weapons delivery. Design and development Early development The Mirage 5 grew out of a request to Dassault from the Israeli Air Force. Since the weather over the Middle East is clear and sunny most of the time, the Israelis suggested removing avionics, normally located behind the cockpit, from the standard Mirage IIIE to reduce cost and maintenance, and replacing them with more fuel storage for attack missions.Jackson 1985, pp. 32–34. In September 1966, the Israelis placed an order for 50 of the new aircraft. Mirage 5 The first Mirage 5 flew on 19 May 1967.Jackson 1985, p. 34. It looked much like the Mirage III, except that it had a long slender ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Nations
The United Nations (UN) is an intergovernmental organization whose stated purposes are to maintain international peace and international security, security, develop friendly relations among nations, achieve international cooperation, and be a centre for harmonizing the actions of nations. It is the world's largest and most familiar international organization. The UN is headquarters of the United Nations, headquartered on extraterritoriality, international territory in New York City, and has other main offices in United Nations Office at Geneva, Geneva, United Nations Office at Nairobi, Nairobi, United Nations Office at Vienna, Vienna, and Peace Palace, The Hague (home to the International Court of Justice). The UN was established after World War II with Dumbarton Oaks Conference, the aim of preventing future world wars, succeeding the League of Nations, which was characterized as ineffective. On 25 April 1945, 50 governments met in San Francisco for United Nations Conference ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sal, Cape Verde
Sal (Portuguese for "salt") is an island in Cape Verde. Sal is a tourist destination with white sandy beaches and over 350 days of sunshine a year. It is one of the three sandy eastern islands of the Cape Verde archipelago in the central Atlantic Ocean, off the west coast of Africa. Cabo Verde is known for year-round kiteboarding, for the large reserve of Caretta turtles which hatch from July to September, and the music of Cesaria Evora. History For Europeans , the island was discovered on 3 December 1460 and named ''Llana'' ("flat"). This name was changed into the current "Sal" when the two large salt ponds (Pedra de Lume and Santa Maria) were discovered. The first three centuries after its discovery, the island was only sparsely inhabited; in 1720 there was a small fishing village near present Palmeira. This changed when the salt industry was developed at the end of the 18th century, starting in Pedra de Lume. Santa Maria was founded in the south of the island in 1830 by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mainland Portugal
Continental Portugal ( pt, Portugal continental, ) or mainland Portugal comprises the bulk of the Portuguese Republic, namely that part on the Iberian Peninsula and so in Continental Europe, having approximately 95% of the total population and 96.6% of the country's land. Mainland Portugal is therefore commonly called by residents of the Portuguese archipelagos of the Azores and Madeira the continent ( pt, o continente) in all respects including minor elements of combined governance from Lisbon, the country's capital. Before 1975, when the Portuguese territory also stretched to several now-independent states in Africa, the designation ''metropolis'' ( pt, metrópole) was also used. Context The designation ''mainland Portugal'' is used to differentiate the continental territory of Portugal from its insular territory. The latter comprises the archipelagos of Madeira and Azores in the Atlantic Ocean. The Azores and Madeira are also commonly referred to as the autonomous regions ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rate Of Climb
In aeronautics, the rate of climb (RoC) is an aircraft's vertical speed, that is the positive or negative rate of altitude change with respect to time. In most ICAO member countries, even in otherwise metric countries, this is usually expressed in feet per minute (ft/min); elsewhere, it is commonly expressed in metres per second (m/s). The RoC in an aircraft is indicated with a vertical speed indicator (VSI) or instantaneous vertical speed indicator (IVSI). The temporal rate of decrease in altitude is referred to as the rate of descent (RoD) or sink rate. A negative rate of climb corresponds to a positive rate of descent: RoD = −RoC. Speed and rate of climb There are a number of designated airspeeds relating to optimum rates of ascent, the two most important of these are ''VX'' and ''VY''. ''VX'' is the indicated forward airspeed for best angle of climb. This is the speed at which an aircraft gains the most altitude in a given horizontal , typically used to avoid a colli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portuguese Empire
The Portuguese Empire ( pt, Império Português), also known as the Portuguese Overseas (''Ultramar Português'') or the Portuguese Colonial Empire (''Império Colonial Português''), was composed of the overseas colonies, factories, and the later overseas territories governed by Portugal. It was one of the longest-lived empires in European history, lasting almost six centuries from the conquest of Ceuta in North Africa, in 1415, to the transfer of sovereignty over Macau to China in 1999. The empire began in the 15th century, and from the early 16th century it stretched across the globe, with bases in North and South America, Africa, and various regions of Asia and Oceania. The Portuguese Empire originated at the beginning of the Age of Discovery, and the power and influence of the Kingdom of Portugal would eventually expand across the globe. In the wake of the Reconquista, Portuguese sailors began exploring the coast of Africa and the Atlantic archipelagos in 1418–1419, u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communist State
A communist state, also known as a Marxist–Leninist state, is a one-party state that is administered and governed by a communist party guided by Marxism–Leninism. Marxism–Leninism was the state ideology of the Soviet Union, the Comintern after Bolshevisation and the communist states within the Comecon, the Eastern Bloc and the Warsaw Pact. Marxism–Leninism currently still remains the ideology of a few parties around the world. After its peak when many communist states were established, the Revolutions of 1989 brought down most of the communist states, however, it is still the official ideology of the ruling parties of China, Cuba, Laos, and Vietnam. During most of the 20th century, before the Revolutions of 1989, around one-third of the world's population lived under communist states. Communist states are typically authoritarian and are typically administered through democratic centralism by a single centralised communist party apparatus. These parties are usually M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Escort Fighter
The escort fighter was a concept for a fighter aircraft designed to escort bombers to and from their targets. An escort fighter needed range long enough to reach the target, loiter over it for the duration of the raid to defend the bombers, and return. A number of twin-engined heavy fighters with high fuel capacity were designed for escort duties prior to the outbreak of World War II. Such heavy fighters largely failed in their intended escort role during the war, as they were commonly outmaneuvered by more agile single-engined fighters. As the war progressed, longer-range fighter designs and the use of drop tanks allowed single-engined fighters to perform escort duties. In the post-war era the introduction of jet engines and their inherent short range made escort fighters very difficult to build. The related concept of a penetration fighter emerged briefly in the 1950s and again in the 1960s, but did not result in any production aircraft. The escort role has been diminished as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portuguese Guinea
Portuguese Guinea ( pt, Guiné), called the Overseas Province of Guinea from 1951 until 1972 and then State of Guinea from 1972 until 1974, was a West African colony of Portugal from 1588 until 10 September 1974, when it gained independence as Guinea-Bissau. Slave trade The Portuguese Crown commissioned its navigators to explore the Atlantic coast of West Africa in the 1430s, to find sources of gold. At that time the gold trade was controlled by Morocco. Muslim caravans across the Sahara also carried salt, kola, textiles, fish, grain, and slaves. The navigators first passed the obstruction of Cape Bojador in 1437 and were able to explore the West African coast as far as Sierra Leone by 1460 and colonize the Portuguese Cape Verde, Cape Verde islands beginning in 1456.C.R. Boxer, (1977). The Portuguese seaborne empire, 1415–1825, pp. 26–7, 30 London, Hutchinson & Co. The gold ultimately came from the upper reaches of the Niger and Volta Rivers and the Portuguese crown wanted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strela 2
The 9K32 Strela-2 (russian: Cтрела, "arrow"; NATO reporting name SA-7 Grail) is a light-weight, shoulder-fired, surface-to-air missile (or MANPADS) system. It is designed to target aircraft at low altitudes with passive infrared homing guidance and destroy them with a high explosive warhead. Broadly comparable in performance with the US Army FIM-43 Redeye, the Strela-2 was the first Soviet man-portable SAM – full-scale production began in 1970. While the Redeye and 9K32 Strela-2 were similar, the missiles were not identical. The Strela-2 was a staple of the Cold War and was produced in huge numbers for the Soviet Union and their allies, as well as revolutionary movements. Though since surpassed by more modern systems, the Strela and its variants remain in service in many countries, and have seen widespread use in nearly every regional conflict since 1972. Development The end of World War II led to a major shift in Soviet defence policy. The advent of long range, hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
F-84 Thunderjet
The Republic F-84 Thunderjet was an American turbojet fighter-bomber aircraft. Originating as a 1944 United States Army Air Forces (USAAF) proposal for a "day fighter", the F-84 first flew in 1946. Although it entered service in 1947, the Thunderjet was plagued by so many structural and engine problems that a 1948 U.S. Air Force review declared it unable to execute any aspect of its intended mission and considered canceling the program. The aircraft was not considered fully operational until the 1949 F-84D model and the design matured only with the definitive F-84G introduced in 1951. In 1954, the straight-wing Thunderjet was joined by the swept-wing F-84F Thunderstreak fighter and RF-84F Thunderflash photo reconnaissance aircraft. The Thunderjet became the USAF's primary strike aircraft during the Korean War, flying 86,408 sorties and destroying 60% of all ground targets in the war as well as eight Soviet-built MiG fighters. Over half of the 7,524 F-84s produced served with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
