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Avia BH-33
The Avia BH-33 was a biplane fighter aircraft built in Czechoslovakia in 1927. It was based on the BH-21J which demonstrated promising results by combining the original BH-21 airframe with a licence-built Bristol Jupiter radial engine. Other than the peculiar Avia hallmark of having an upper wing with a shorter span than the lower, it was utterly conventional, even featuring a tail fin for the first time in a Pavel Beneš and Miroslav Hajn design (previous aircraft had a rudder but no fin). Design and development Initial tests of the first prototype were disappointing, displaying performance only marginally better than the BH-21, even when fitted with a more powerful version of the Jupiter. Two further prototypes followed, both designated BH-33-1, each with an increasingly powerful Jupiter variant – one a Jupiter VI, the other a Jupiter VII. The performance of the latter example was finally acceptable for the Czechoslovakian defence ministry to order a small production run ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudder
A rudder is a primary control surface used to steer a ship, boat, submarine, hovercraft, aircraft, or other vehicle that moves through a fluid medium (generally aircraft, air or watercraft, water). On an aircraft the rudder is used primarily to counter adverse yaw and p-factor and is not the primary control used to turn the airplane. A rudder operates by redirecting the fluid past the hull (watercraft), hull or fuselage, thus imparting a turning or yaw (rotation), yawing motion to the craft. In basic form, a rudder is a flat plane or sheet of material attached with hinges to the craft's stern, tail, or after end. Often rudders are shaped so as to minimize Drag (physics), hydrodynamic or aerodynamic drag. On simple watercraft, a tiller—essentially, a stick or pole acting as a lever arm—may be attached to the top of the rudder to allow it to be turned by a helmsman. In larger vessels, cables, pushrods, or hydraulics may be used to link rudders to steering wheels. In typical air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hellenic Air Force
, colours = , colours_label = , march = , mascot = , anniversaries = 8 November , equipment = , equipment_label = , battles = * Balkan Wars * World War I * Greco-Turkish War (1919–1922) * World War II * Air operations during the Greek Civil War * Korean War * Turkish invasion of Cyprus * Operation Desert Storm * War on Terror * 2011 military intervention in Libya , decorations = , battle_honours = , battle_honours_label = , flying_hours = , website = , commander1 = Lieutenant General Themistoklis Bourolias , commander1_label = Chief of Air Force General Staff , notable_commanders = , identification_symbol = , identification_symbol_label = Roundel , identific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Czechoslovakian Air Force
The Czechoslovak Air Force (''Československé letectvo'') or the Czechoslovak Army Air Force (''Československé vojenské letectvo'') was the air force branch of the Czechoslovak Army formed in October 1918. The armed forces of Czechoslovakia ceased to exist on 31 December 1992. By the end of the year, all aircraft of the Czechoslovak Air Force were divided between the Czech Air Force and the Slovak Air Force. Organization On 30 October 1918, the establishment of Aviation Corps (''Letecký sbor'') marked the beginning of the Czechoslovak Air Force. Under the First Republic, the air force was an integral service of the Czechoslovak army. During peacetime, the army aviation was a subordinate agency of the Ministry of National Defence within its 3rd Department of Aviation (''III. odbor (letecký) Ministerstva národní obrany'') under the command of divisional general Jaroslav Fajfr (as of October 1938). It was anticipated that individual squadrons and flights would be attached ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Force Of The Independent State Of Croatia
The Air Force of the Independent State of Croatia ( hr, Zrakoplovstvo Nezavisne Države Hrvatske; ZNDH), was the air force of the Independent State of Croatia (NDH), a puppet state established with the support of the Axis Powers on the territory of the Kingdom of Yugoslavia during World War II. The ZNDH was founded under German authority in April 1941, following the German-led Axis invasion of Yugoslavia. Although it could not be considered a large air arm in the wider context of World War II, the ZNDH nonetheless had on its charge at one time or another some 650 aircraft between April 1941 and May 1945, as well as anti-aircraft and paratroop units. From humble beginnings in 1941, the ZNDH was still providing some measure of air-support (fighter, attack and transport) until the last days of World War II in Europe. The ZNDH maintained a flying training school equipped with gliders and trainers, originally at Rajlovac airfield near Sarajevo and then at Velika Gorica and Pleso airf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belgian Air Force
The Belgian Air Component ( nl, Luchtcomponent, french: Composante air) is the air arm of the Belgian Armed Forces, and until January 2002 it was officially known as the Belgian Air Force ( nl, Belgische Luchtmacht; french: Force aérienne belge). The Belgian military aviation was founded in 1909 and is one of the world's oldest air services. The commander is Major General Thierry Dupont, appointed on 17 September 2020. History Foundation and early years The Belgian military aviation was founded in 1909 as a branch of the Belgian Army, carrying the name . King Albert's interest in the military use of aircraft was the main impetus for its formation. Coincidentally, in the civil aviation sector, Baron Pierre de Caters earned the first civil pilot's brevet that same year. De Caters would promptly establish an aviation school. At approximately the same time, the War Ministry followed the French military's example and had pilots earn a civil pilot's brevet before their military one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Messerschmitt Bf 109
The Messerschmitt Bf 109 is a German World War II fighter aircraft that was, along with the Focke-Wulf Fw 190, the backbone of the Luftwaffe's fighter force. The Bf 109 first saw operational service in 1937 during the Spanish Civil War and was still in service at the end of World War II in 1945. It was one of the most advanced fighters when it first appeared, with an all-metal monocoque construction, a closed canopy, and retractable landing gear. It was powered by a liquid-cooled, inverted-V12 aero engine. It was called the Me 109 by Allied aircrew and some German aces, even though this was not the official German designation. It was designed by Willy Messerschmitt and Robert Lusser who worked at Bayerische Flugzeugwerke during the early to mid-1930s. It was conceived as an interceptor, although later models were developed to fulfill multiple tasks, serving as bomber escort, fighter-bomber, day-, night-, all-weather fighter, ground-attack aircraft, and reconnaissance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pratt & Whitney Hornet
The Pratt & Whitney R-1690 Hornet was a widely used American aircraft engine. Developed by Pratt & Whitney, 2,944 were produced from 1926 through 1942. It first flew in 1927. It was a single-row, 9-cylinder air-cooled radial design. Displacement was 1,690 cubic inches (27.7 L). It was built under license in Italy as the Fiat A.59. In Germany, the BMW 132 was a developed version of this engine. The R-1860 Hornet B was an enlarged version produced from 1929. Variants ;R-1690-3: ;R-1690-5: ;R-1690-11: ;R-1690-13: ;R-1690-S5D1G: ;R-1690-52: ;R-1690-SDG: ;R-1690-S1EG: ;R-1690-S2EG: ;R-1690-25: ;R-1690-S1C3G: ;Fiat A.59 R.: License built in Italy with reduction gearing. ;Fiat A.59 R.C.: License built in Italy with reduction gearing and supercharger. ;BMW Hornet:License production of the Hornet in Germany, independently developed as the BMW 132. Applications * Bach Air Yacht * Bellanca 31-40 * Boeing 80 * Boeing Model 95 * Boeing Model 299 * Burnelli UB-14 * Douglas O-38 * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Škoda L
Škoda means ''pity'' in the Czech and Slovak languages. It may also refer to: Czech brands and enterprises * Škoda Auto, automobile and previously bicycle manufacturer in Mladá Boleslav ** Škoda Motorsport, the division of Škoda Auto responsible for motorsport activities * Škoda Transportation, engineering company that manufactures rail vehicles, based in Plzeň * Škoda Works, engineering company, predecessor of Škoda Transportation * Doosan Škoda Power, subsidiary of the Doosan Group, based in Plzeň People * Škoda (surname) * Skoda (Portuguese footballer) (born 1960) Art * ''Škoda lásky'', the original Czech title of the "Beer Barrel Polka" Other * British Rail Class 90, an electric locomotive nicknamed Skoda * ''Skoda'' (barquentine), sailing vessel built in Kingsport, Nova Scotia, in 1893 * Skoda Xanthi F.C., former name of the Greek football club Xanthi F.C. (sponsored by Škoda Auto in 1991–2016) ** Skoda Xanthi Arena, former name of the club's stadium * S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Union
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national republics; in practice, both its government and its economy were highly centralized until its final years. It was a one-party state governed by the Communist Party of the Soviet Union, with the city of Moscow serving as its capital as well as that of its largest and most populous republic: the Russian SFSR. Other major cities included Leningrad (Russian SFSR), Kiev (Ukrainian SSR), Minsk ( Byelorussian SSR), Tashkent (Uzbek SSR), Alma-Ata (Kazakh SSR), and Novosibirsk (Russian SFSR). It was the largest country in the world, covering over and spanning eleven time zones. The country's roots lay in the October Revolution of 1917, when the Bolsheviks, under the leadership of Vladimir Lenin, overthrew the Russian Provisional Government ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kingdom Of Yugoslavia
The Kingdom of Yugoslavia ( sh-Latn-Cyrl, separator=" / ", Kraljevina Jugoslavija, Краљевина Југославија; sl, Kraljevina Jugoslavija) was a state in Southeast Europe, Southeast and Central Europe that existed from 1918 until 1941. From 1918 to 1929, it was officially called the Kingdom of Serbs, Croats and Slovenes ( sh-Latn-Cyrl, separator=" / ", Kraljevina Srba, Hrvata i Slovenaca, Краљевина Срба, Хрвата и Словенаца; sl, Kraljevina Srbov, Hrvatov in Slovencev), but the term "Yugoslavia" (literally "Land of South Slavs") was its colloquial name due to its origins."Kraljevina Jugoslavija! Novi naziv naše države. No, mi smo itak med seboj vedno dejali Jugoslavija, četudi je bilo na vseh uradnih listih Kraljevina Srbov, Hrvatov in Slovencev. In tudi drugi narodi, kakor Nemci in Francozi, so pisali že prej v svojih listih mnogo o Jugoslaviji. 3. oktobra, ko je kralj Aleksander podpisal "Zakon o nazivu in razdelitvi kraljevine n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
