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PZL.50 Jastrząb
The PZL.50 Jastrząb (''hawk'') was a Polish pre-war fighter aircraft design by Wsiewołod Jakimiuk of the PZL works. The single-seat low-wing monoplane was to serve as a multi-purpose fighter and escort to replace all other fighters in the Polish Air Force. Designed after 1936, its prototype first flew in February 1939. A further two prototypes were under construction by the time of the Invasion of Poland, but the fighter never entered mass production. Design and development In early 1930s the Polish Air Force was equipped with the then state-of-the-art PZL P.11 all-metal high-wing monoplanes, the latest of a family of fighter aircraft designed by Zygmunt Puławski. However, by the end of decade they had become obsolete, as new fighter and bomber aircraft with higher performance started to appear. There was no development carried out on other fighters, apart from PZL P.24 export variants of Puławski's P.11 design. By the mid-1930s, the Polish Air Force Command led by Gen. Ludo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fighter Aircraft
Fighter aircraft are fixed-wing military aircraft designed primarily for air-to-air combat. In military conflict, the role of fighter aircraft is to establish air superiority of the battlespace. Domination of the airspace above a battlefield permits bombers and attack aircraft to engage in tactical and strategic bombing of enemy targets. The key performance features of a fighter include not only its firepower but also its high speed and maneuverability relative to the target aircraft. The success or failure of a combatant's efforts to gain air superiority hinges on several factors including the skill of its pilots, the tactical soundness of its doctrine for deploying its fighters, and the numbers and performance of those fighters. Many modern fighter aircraft also have secondary capabilities such as ground attack and some types, such as fighter-bombers, are designed from the outset for dual roles. Other fighter designs are highly specialized while still filling the ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Józef Zając
Józef Ludwik Zając (pron. Za-YANTz) (1891–1963) was a Polish general and pilot. Biography Born on 14 March 1891 in Rzeszów, Józef Zając studied at the Jagiellonian University in Kraków, graduating with a PhD in philosophy in 1915. He joined the Polish pro-independence organization of that time; in 1912 he joined the Riflemen's Association where he took the course to gain the qualifications of a military officer. In 1914 he joined the Polish Legions in First World War; he commanded the 3rd, 6th, 5th and again 3rd regiments (''pułk''s). In 1918 he joined the Blue Army of general Józef Haller; until mid-1920 he spent most of his time in France (among other things, he attended the École Supérieure de Guerre). He took part in the last phase of the Polish-Soviet War: on 17 August 1920 he became the chief of staff of an Operational Group 'Wisła' of the Polish 5th Army, later, Operational Group 'North' of the 2nd Army, and finally, of the 3rd Army. In the interwar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brewster F2A Buffalo
The Brewster F2A Buffalo is an American fighter aircraft which saw service early in World War II. Designed and built by the Brewster Aeronautical Corporation, it was one of the first U.S. monoplanes with an arrestor hook and other modifications for aircraft carriers. The Buffalo won a competition against the Grumman F4F Wildcat in 1939 to become the U.S. Navy's first monoplane fighter aircraft. Although superior to the Grumman F3F biplane it replaced, and the early F4Fs,Wheeler 1992, p. 58. the Buffalo was largely obsolete when the United States entered the war, being unstable and overweight, especially when compared to the Japanese Mitsubishi A6M Zero. Several nations, including Finland, Belgium, Britain and the Netherlands, ordered the Buffalo. The Finns were the most successful with their Buffalos, flying them in combat against early Soviet fighters with excellent results.Ethell 1995, p. 212. During the Continuation War of 1941–1944, the B-239s (de-navalized F2A-1s) operate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bloch MB
Bloch is a surname of German origin. Notable people with this surname include: A–F * (1859-1914), French rabbi *Adele Bloch-Bauer (1881-1925), Austrian entrepreneur *Albert Bloch (1882–1961), American painter * (born 1972), German motor journalist and presenter * (1878–?), Russian lawyer, journalist, lawyer, and revolutionary * Alexandre Bloch (1857–1919), French painter *Alfred Bloch (born 1877), French footballer * (1915–1983), Swiss linguist * (1904–1979), German-British engineer * Aliza Bloch (born 1957), First female mayor of Bet Shemesh, Israel * (1768–1838), Swiss Benedictine monk *André Bloch (composer) (1873–1960), French composer and music educator *André Bloch (mathematician) (1893–1948), French mathematician * (1914–1942), French agent of the Special Operations Executive * Andreas Bloch (1860–1917), Norwegian painter, illustrator and costume designer * Andy Bloch (born 1969), American poker player *Anna Bloch (1868–1953), Danish actress *Armand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Machine Gun
A machine gun is a fully automatic, rifled autoloading firearm designed for sustained direct fire with rifle cartridges. Other automatic firearms such as automatic shotguns and automatic rifles (including assault rifles and battle rifles) are typically designed more for firing short bursts rather than continuous firepower, and are not considered true machine guns. As a class of military kinetic projectile weapon, machine guns are designed to be mainly used as infantry support weapons and generally used when attached to a bipod or tripod, a fixed mount or a heavy weapons platform for stability against recoils. Many machine guns also use belt feeding and open bolt operation, features not normally found on other infantry firearms. Machine guns can be further categorized as light machine guns, medium machine guns, heavy machine guns, general purpose machine guns and squad automatic weapons. Similar automatic firearms of caliber or more are classified as autocannons, rat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PWU Wz
PWU may refer to: *Pacific Western University (California) *Pacific Western University (Hawaii) * Państwowe Wytwórnie Uzbrojenia or State Arms Factories *Paranur railway station, Tamil Nadu, India (station code) *Pennsylvania Western University or Penn West *Philippine Women's University The Philippine Women's University (PWU) is a tertiary education school which has its main campus in Manila, Philippines. An institution exclusive for girls from its inception until the 1970s, the PWU admits both women and men as its students. ... (Manila, Philippines) * Powerloom Workers Union {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristol Mercury VIII
The Bristol Mercury is a British nine-cylinder, air-cooled, single-row, piston radial engine. Designed by Roy Fedden of the Bristol Aeroplane Company it was used to power both civil and military aircraft of the 1930s and 1940s. Developed from the earlier Jupiter engine, later variants could produce 800 horsepower (600 kW) from its capacity of 1,500 cubic inches (25 L) by use of a geared supercharger. Almost 21,000 engines were produced, with a number also being built under license elsewhere in Europe. Several examples remain airworthy, with other preserved examples on public display in aviation museums. Design and development The Mercury was developed by the Bristol Aeroplane Company in 1925 as their Bristol Jupiter was reaching the end of its lifespan. Although the Mercury initially failed to attract much interest, the Air Ministry eventually funded three prototypes and it became another winner for the designer Roy Fedden. With the widespread introduction of superchar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jerzy Cynk
Jerzy Bogdan Cynk (11 May 1925 – 18 November 2016) was a Polish- British historian, journalist and writer, author of numerous English and Polish language publications on aviation of Poland. During World War II he was a soldier of the Szare Szeregi and the Home Army. Arrested by the Gestapo in 1943, he was imprisoned in the infamous Pawiak prison and then sent to Auschwitz concentration camp. Transferred to Sachsenhausen-Oranienburg he was liberated by American forces on 3 May 1945. In September of that year he joined the Polish II Corps and briefly served in counter-intelligence in Northern Italy. In 1947 he moved to Bodney in the United Kingdom and then settled in London. Working for various BOC branches, he devoted most of his spare time to studies on Polish aviation history, notably the history of Polish armed forces during World War II. Since 1953 he started publishing articles in '' Flight'' and numerous other journals, including ''L'Fanatique de l'Aviation'', ''Aerospace ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rawa Ruska
Rava-Ruska (, translit. ''Rava-Rus'ka''; ; , Rave) is a city in Lviv Raion, Lviv Oblast of western Ukraine. It is a border town between Ukraine and Poland. The border checkpoint is situated west of the city, along the international autoroute Warsaw - Lviv. Rava-Ruska hosts the administration of Rava-Ruska urban hromada, one of the hromadas of Ukraine. Its population is approximately . History Rawa-Ruska was founded in 1455 by the Polish prince Władysław I of Płock, Duke of Bełz and Mazovia, who named the settlement after his regional seat, Rawa Mazowiecka located further west. Due to a convenient location along the merchant trail from Lublin to Lviv, the newly located town quickly developed. For centuries, Rawa was part of the Kingdom of Poland and the Polish–Lithuanian Commonwealth. It remained in private hands of several consecutive szlachta families, such as the Głogowski, Suchodolski, Rzeczycki and Bogusz. In 1622, the town received permission of the King of Pola ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lwów
Lviv ( uk, Львів) is the largest city in western Ukraine, and the seventh-largest in Ukraine, with a population of . It serves as the administrative centre of Lviv Oblast and Lviv Raion, and is one of the main cultural centres of Ukraine. It was named in honour of Leo, the eldest son of Daniel, King of Ruthenia. Lviv emerged as the centre of the historical regions of Red Ruthenia and Galicia in the 14th century, superseding Halych, Chełm, Belz and Przemyśl. It was the capital of the Kingdom of Galicia–Volhynia from 1272 to 1349, when it was conquered by King Casimir III the Great of Poland. From 1434, it was the regional capital of the Ruthenian Voivodeship in the Kingdom of Poland. In 1772, after the First Partition of Poland, the city became the capital of the Habsburg Kingdom of Galicia and Lodomeria. In 1918, for a short time, it was the capital of the West Ukrainian People's Republic. Between the wars, the city was the centre of the Lwów Voivodeship in the Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristol Hercules
The Bristol Hercules is a 14-cylinder two-row radial aircraft engine designed by Sir Roy Fedden and produced by the Bristol Engine Company starting in 1939. It was the most numerous of their single sleeve valve ( Burt-McCollum, or Argyll, type) designs, powering many aircraft in the mid-World War II timeframe. The Hercules powered a number of aircraft types, including Bristol's own Beaufighter heavy fighter design, although it was more commonly used on bombers. The Hercules also saw use in civilian designs, culminating in the 735 and 737 engines for such as the Handley Page Hastings C1 and C3 and Bristol Freighter. The design was also licensed for production in France by SNECMA. Design and development Shortly after the end of World War I, the Shell company, Asiatic Petroleum, commissioned Harry Ricardo to investigate problems of fuel and engines. His book was published in 1923 as “The Internal Combustion Engine”. Ricardo postulated that the days of the poppet valve were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pratt & Whitney R-1830
The Pratt & Whitney R-1830 Twin Wasp is an American air-cooled radial aircraft engine. It displaces and its bore and stroke are both . The design traces its history to 1929 experiments at Pratt & Whitney on twin-row designs. Production began in 1932 and it was widely used during the 1930s. It was selected as the power plant for both the four-engined Consolidated B-24 Liberator heavy bomber and the twin-engined Douglas DC-3 transport, two of the most-produced aircraft. The production run of 173,618 R-1830 examples makes it the most-produced aviation engine in history. A further developed version, the R-2000, was produced starting in 1942. The R-2000 was "bored-out" to and had a number of other minor changes to improve fuel economy and allow it to run at higher power ratings on lower-octane fuel. The primary user of the R-2000 was the Douglas DC-4. Mostly retired today, the R-1830 is still used on Douglas DC-3 and various museum aircraft and warbirds seen at airshows. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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