|
Bengali Air Force
The Bangladesh Air Force (BAF) ( bn, বাংলাদেশ বিমান বাহিনী, Bangladesh Biman Bahini) is the aerial warfare branch of the Bangladesh Armed Forces. The Air Force is primarily responsible for air defence of Bangladesh's sovereign territory as well as providing air support to the Bangladesh Army and Bangladesh Navy. Furthermore, the BAF has a territorial role in providing tactical and strategic air transport and logistics capability for the country. Since its establishment on 28 September 1971, the Air Force has been involved in various combat and humanitarian operations, from the Bangladesh Liberation War in which it was born, to supporting international efforts including United Nations peacekeeping missions. Operation Kilo Flight was a famous operation conducted by the Bangladesh Air Force during the Bangladesh Liberation War. History Foundation The Bangladesh Air Force was officially formed on 28 September 1971 consisting of the revolting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crest (heraldry)
A crest is a component of a heraldic display, consisting of the device borne on top of the helm. Originating in the decorative sculptures worn by knights in tournaments and, to a lesser extent, battles, crests became solely pictorial after the 16th century (the era referred to by heraldists as that of "paper heraldry"). A normal heraldic achievement consists of the shield, above which is set the helm, on which sits the crest, its base encircled by a circlet of twisted cloth known as a torse. The use of the crest and torse independently from the rest of the achievement, a practice which became common in the era of paper heraldry, has led the term "crest" to be frequently but erroneously used to refer to the arms displayed on the shield, or to the achievement as a whole. Origin The word "crest" derives from the Latin ''crista'', meaning "tuft" or "plume", perhaps related to ''crinis'', "hair". Crests had existed in various forms since ancient times: Roman officers wore fans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AgustaWestland AW139
The AgustaWestland AW139 is a medium-lift twin-engined helicopter developed and produced by the Anglo-Italian helicopter manufacturer AgustaWestland, later wholly owned by Leonardo S.p.A. It is marketed at several different roles, including VIP/corporate transport, offshore transport, fire fighting, law enforcement, search and rescue, emergency medical service, disaster relief, and maritime patrol."US Corporate Operator Signs Contract For Two AW139 Helicopters." ''AgustaWestland'', 18 June 2014. The AW139 was originally designed jointly by the Italian helicopter manufacturer Agusta and the American company |
Mil Mi-17
The Mil Mi-17 (NATO reporting name: Hip) is a Soviet-designed Russian military helicopter family introduced in 1975 (Mi-8M), continuing in production at two factories, in Kazan and Ulan-Ude. It is known as the Mi-8M series in Russian service. The helicopter is mostly used as a medium twin-turbine transport helicopter, as well as an armed gunship version. Development Developed from the basic Mi-8 airframe, the Mi-17 was fitted with the larger Klimov TV3-117MT engines, rotors, and transmission developed for the Mi-14, along with fuselage improvements for heavier loads. Optional engines for " hot and high" conditions are the 1545 kW (2070 shp) Isotov TV3-117VM. Recent exports to China and Venezuela for use in high mountains have the new Klimov VK-2500 version of the Klimov TV3-117 engine with FADEC control. The designation Mi-17 is for export; Russian armed forces call it Mi-8MT. The Mi-17 can be recognized because it has the tail rotor on the port side instead of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bell 212
The Bell 212 (also known as the ''Twin Two-Twelve'') is a two-blade, medium helicopter that first flew in 1968. Originally manufactured by Bell Helicopter in Fort Worth, Texas, United States, production was moved to Mirabel, Quebec, Canada in 1988, along with all Bell commercial helicopter production after that plant opened in 1986. The 212 was marketed to civilian operators and has up to a 15-seat capacity, with one pilot and fourteen passengers. In cargo-carrying configuration the 212 has an internal capacity of 220 ft3 (6.23 m3). An external load of up to 5,000 lb (2,268 kg) can be carried. Development Based on the stretched fuselage Bell 205, the Bell 212 was originally developed for the Canadian Forces as the ''CUH-1N'' and later redesignated as the '' CH-135''. The Canadian Forces took delivery of 50 starting in May 1971. At the same time the United States military services ordered 294 Bell 212s under the designation UH-1N. By 1971, the Bell 212 ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chengdu F-7
The Chengdu J-7 ( Chinese: 歼-7; third generation export version F-7; NATO reporting name: Fishcan) is a People's Republic of China fighter aircraft. It is a license-built version of the Soviet Mikoyan-Gurevich MiG-21, and thus shares many similarities with the MiG-21. The aircraft is armed with short-range, infrared homing air-to-air missiles and mainly designed for short range air-to-air combat. The aircraft is also used for close air support. On 30 March 1962, the Soviet Union and China signed a technology transference arrangement pertaining to the MiG-21. Allegedly, while various kits, components, completed aircraft and associated documents were delivered to the Shenyang Aircraft Factory, the design documentation was incomplete, and Chinese designers made efforts to reverse engineer the aircraft. While the two aircraft are greatly similar, areas of difference include the hydraulic systems and internal fuel arrangements. During March 1964, domestic production of the J-7 r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MiG-29
The Mikoyan MiG-29 (russian: Микоян МиГ-29; NATO reporting name: Fulcrum) is a twin-engine fighter aircraft designed in the Soviet Union. Developed by the Mikoyan design bureau as an air superiority fighter during the 1970s, the MiG-29, along with the larger Sukhoi Su-27, was developed to counter new U.S. fighters such as the McDonnell Douglas F-15 Eagle and the General Dynamics F-16 Fighting Falcon.Gordon and Davison 2005, p. 9. The MiG-29 entered service with the Soviet Air Forces in 1983. While originally oriented towards combat against any enemy aircraft, many MiG-29s have been furnished as multirole fighters capable of performing a number of different operations, and are commonly outfitted to use a range of air-to-surface armaments and precision munitions. The MiG-29 has been manufactured in several major variants, including the multirole Mikoyan MiG-29M and the navalised Mikoyan MiG-29K; the most advanced member of the family to date is the Mikoyan MiG-3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fin Flash
Military aircraft insignia are insignia applied to military aircraft to identify the nation or branch of military service to which the aircraft belong. Many insignia are in the form of a circular roundel or modified roundel; other shapes such as stars, crosses, squares, or triangles are also used. Insignia are often displayed on the sides of the fuselage, the upper and lower surfaces of the wings, as well as on the fin or rudder of an aircraft, although considerable variation can be found amongst different air arms and within specific air arms over time. History France The first use of national insignia on military aircraft was before the First World War by the French ''Aéronautique Militaire'', which mandated the application of roundels in 1912.Kershaw, Andrew: ''The First War Planes, Friend Or Foe, National Aircraft Markings'', pages 41–44. BCP Publishing, 1971. The chosen design was the French national cockade, which consisted of a blue-white-red emblem, going outwards ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flag Of Bangladesh
The national flag, national flag of Bangladesh, was adopted officially on 17 January 1972. It consists of a red disc or sun on top of a dark green banner. The red disc is offset slightly toward the hoist so that it appears centered when the flag is flying. While there are many interpretations, according to Shib Narayan Das who put the map on the first flag design, green on the flag represented the landscape and the red circle represented the sun, symbolising a new day and end of oppression. The flag is based on a similar flag used during the Bangladesh Liberation War of 1971, which had a yellow map of the country inside the red disc. In 1972 this map was removed from the flag. One reason given was the difficulty for rendering the map correctly on both sides of the flag. The civil ensign and naval ensign place it in the Flag terminology, canton of a red or white field, respectively. Origin The first version of the flag was designed and made by a section of student leaders and activ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roundel Of Bangladesh
A roundel is a circular disc used as a symbol. The term is used in heraldry, but also commonly used to refer to a type of national insignia used on military aircraft, generally circular in shape and usually comprising concentric rings of different colours. Other symbols also often use round shapes. Heraldry In heraldry, a ''roundel'' is a circular charge. ''Roundels'' are among the oldest charges used in coats of arms, dating from at least the twelfth century. Roundels in British heraldry have different names depending on their tincture. Thus, while a roundel may be blazoned by its tincture, e.g., ''a roundel vert'' (literally "a roundel green"), it is more often described by a single word, in this case ''pomme'' (literally "apple", from the French) or, from the same origins, ''pomeis''—as in "Vert; on a cross Or five pomeis". One special example of a named roundel is the fountain, depicted as ''a roundel barry wavy argent and azure'', that is, containing alternating horizo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Aircraft Insignia
Military aircraft insignia are insignia applied to military aircraft to identify the nation or branch of military service to which the aircraft belong. Many insignia are in the form of a circular roundel or modified roundel; other shapes such as stars, crosses, squares, or triangles are also used. Insignia are often displayed on the sides of the fuselage, the upper and lower surfaces of the wings, as well as on the fin or rudder of an aircraft, although considerable variation can be found amongst different air arms and within specific air arms over time. History France The first use of national insignia on military aircraft was before the First World War by the French ''Aéronautique Militaire'', which mandated the application of roundels in 1912.Kershaw, Andrew: ''The First War Planes, Friend Or Foe, National Aircraft Markings'', pages 41–44. BCP Publishing, 1971. The chosen design was the French national cockade, which consisted of a blue-white-red emblem, going outward ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Force Ensign Of Bangladesh
The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing for liquid water to exist on the Earth's surface, absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation). By mole fraction (i.e., by number of molecules), dry air contains 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere. Air composition, temperature, and atmospheric pressure vary with altitude. Within the atmosphere, air suitable for use in photosynthesis by terrestrial plants and breathing of terrestrial animals is found only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
