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PWS-24
The PWS-24 was a Polish single-engine passenger aircraft for 4 passengers, built in PWS (aircraft manufacturer), PWS factory, used from 1933 in aviation, 1933 to 1936 in aviation, 1936 by LOT Polish Airlines. In spite of its limited capacity, it was the only series-built airliner of domestic design ever used by the LOT.PZL.4, PZL.27, PZL.44 Wicher and PZL MD-12 were evaluated by LOT, being prototypes. Development The aircraft was a development of an unsuccessful PWS-21, utilizing its lightweight construction wing (weight 300 kg). A fuselage and stabilizers were new. The main designer was Stanisław Cywiński. The prototype (markings SP-AGR) first flew in August 1931 in aviation, 1931 in Biała Podlaska. After trials and some modifications, it won a Ministry of Communication's contest for a successor of Junkers F-13 in LOT airlines, against Lublin R-XVI. In June 1932 it took the first place in a passenger aircraft race at the international air meeting in Warsaw. Polish Minist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LOT Polish Airlines
LOT Polish Airlines, legally Polskie Linie Lotnicze LOT S.A. (, ''flight''), is the flag carrier of Poland. A founding member of IATA, it is one of the world's oldest airlines. With a fleet of 87 aircraft as of June 2025, LOT is Europe's 16th largest operator, serving 96 destinations across Europe, Asia and North America. The airline was founded on 29 December 1928 by the Polish government during the Second Polish Republic as a self-governing limited liability corporation, taking over existing domestic airlines Aerolot (founded in 1922) and Aero (founded in 1925). LOT officially commenced operations on 1 January 1929. In the 1930s, LOT expanded its domestic and international routes, leading to a network spanning over 10,250km by 1939. It also expanded its fleet, acquiring Douglas DC-2 and Lockheed Electra aircraft, amongst others. The airline moved its operations to the new Warsaw Okęcie Airport in 1934. However, the outbreak of World War II in 1939, led to the suspension ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PWS-21
The PWS-21 was a Polish passenger aircraft for 4 passengers, built in PWS (aircraft manufacturer), PWS factory in 1930, that remained a prototype. Development The aircraft was developed for a contest for a successor of Junkers F-13 in LOT Polish Airlines. The first design of 1929, named PWS-21, developed by Stanisław Cywiński and Jarosław Naleszkiewicz, was a braced high-wing plane, but it was not realized because LOT demanded bigger passenger cab. The next design, named PWS-21bis, was a cantilever high-wing plane, similar to Fokker F.VIIa/1m design. The only prototype (markings SP-AEC) first flew in the spring, probably April 1930 in Biała Podlaska. Its counterpart was Lublin R-XI. The plane appeared not successful. It was too heavy, what resulted in poor speed, ceiling and range, and long take off. In 1931 it was evaluated in LOT airlines, but after a test flight it was returned to the factory. However, at that time there was its development, PWS-24 built, sharing the same ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pratt And Whitney Wasp Junior
The Pratt & Whitney R-985 Wasp Junior is a series of nine-cylinder, air-cooled, radial aircraft engines built by the Pratt & Whitney Aircraft Company from the 1930s to the 1950s. These engines have a displacement of ; initial versions produced , while the most widely used versions produce . Wasp Juniors have powered numerous smaller civil and military aircraft, including small transports, utility aircraft, trainers, agricultural aircraft, and helicopters. Over 39,000 engines were built, and many are still in service today. Design and development Pratt & Whitney developed the R-985 Wasp Junior as a smaller version of the R-1340 Wasp to compete in the market for medium-sized aircraft engines. Like its larger brother, the Wasp Junior was an air-cooled, nine-cylinder radial, with its power boosted by a gear-driven single-speed centrifugal type supercharger. Its cylinders were smaller, however, with a bore and stroke of , giving a 27% lesser total displacement. The Wasp Junior use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lublin R-XVI
The Lublin R-XVI was a Polish passenger and air ambulance aircraft, designed in the 1930s in the Plage i Laśkiewicz factory in Lublin and built in a small series. Design and development The Lublin R-XVI was conceived as a small 4-seater passenger plane, ordered by the Polish Ministry of Communications. It was a development of an unsuccessful Lublin R-XI design. The main designer was Jerzy Rudlicki. The new plane was lighter and introduced a trapezoid-shaped wing instead of an elliptical one. Both designs were partly modeled on a construction of Fokker F.VII, produced under licence by Plage i Laśkiewicz. The first prototype was flown in February 1932. In the same year it was evaluated by the LOT Polish Airlines, flying 12,500 km. The R-XVI took part in a contest for a successor of Junkers F.13 planes in LOT airlines. The contest was won by PWS-24, because the construction of the R-XVI had to be strengthened, what reduced its payload to 546 kg. This had to reduce it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pratt & Whitney Wasp Junior
The Pratt & Whitney R-985 Wasp Junior is a series of nine-cylinder, air-cooled, radial aircraft engines built by the Pratt & Whitney Aircraft Company from the 1930s to the 1950s. These engines have a displacement of ; initial versions produced , while the most widely used versions produce . Wasp Juniors have powered numerous smaller civil and military aircraft, including small transports, utility aircraft, trainers, agricultural aircraft, and helicopters. Over 39,000 engines were built, and many are still in service today. Design and development Pratt & Whitney developed the R-985 Wasp Junior as a smaller version of the R-1340 Wasp to compete in the market for medium-sized aircraft engines. Like its larger brother, the Wasp Junior was an air-cooled, nine-cylinder radial, with its power boosted by a gear-driven single-speed centrifugal type supercharger. Its cylinders were smaller, however, with a bore and stroke of , giving a 27% lesser total displacement. The Wasp Junior use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lorraine Algol
The Lorraine 9N Algol was a French 9-cylinder radial aeroengine built and used in the 1930s. It was rated at up to , but more usually in the range. Design and development The Algol was a conventionally laid out radial engine, with nine cylinders in a single row. The crankcase was a barrel-shaped aluminium alloy casting, with an internal integral diaphragm which held the front crankshaft bearing. Forward of the diaphragm there was an integrally cast cam-gear case for the double track cam-ring. The reduction gear was housed under a domed casing attached to the front of the crankcase. Flange-mounted steel barrels were bolted to the crankcase and enclosed with cast aluminium alloy, screwed-on, cylinder head with integral cooling fins. The pistons were also made of aluminium alloy and had floating gudgeon pins. The nine pistons drove the single throw crankshaft via one channel-section master rod and eight circular section auxiliary rods. The master rod had an integral, spli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1939 In Aviation
This year also marks the start of the Second World War, the largest and deadliest conflict in human history. Events Events related to World War II have a "WWII" prefix. January * January 1 ** Coming into effect in Nazi Germany of: *** The Protection of Young Persons Act, passed on April 30, 1938, the Working Hours Regulations. *** The small businesses obligation to maintain adequate accounting. *** The Jews name change decree. ** With his traditional call to the New Year in Nazi Germany, Führer and Reich Chancellor Adolf Hitler addresses the members of the National Socialist German Workers' Party (NSDAP). ** The Hewlett-Packard technology and scientific instruments manufacturing company is founded by Bill Hewlett and David Packard, in a garage in Palo Alto, California, considered the birthplace of Silicon Valley. ** Philipp Etter takes over as President of the Swiss Confederation. ** The Third Soviet Five Year Plan is launched. * January 5 – Pioneering U.S. a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invasion Of Poland (1939)
The invasion of Poland, also known as the September Campaign, Polish Campaign, and Polish Defensive War of 1939 (1 September – 6 October 1939), was a joint attack on the Second Polish Republic, Republic of Poland by Nazi Germany, the Slovak Republic (1939–1945), Slovak Republic, and the Soviet Union, which marked the beginning of World War II. The German invasion began on 1 September 1939, one week after the signing of the Molotov–Ribbentrop Pact between Germany and the Soviet Union, and one day after the Supreme Soviet of the Soviet Union had approved the pact. The Soviet invasion of Poland, Soviets invaded Poland on 17 September. The campaign ended on 6 October with Germany and the Soviet Union dividing and annexing the whole of Poland under the terms of the German–Soviet Frontier Treaty. The aim of the invasion was to disestablish Poland as a sovereign country, with its citizens destined for The Holocaust, extermination. German and Field Army Bernolák, Slovak forces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romania
Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to the east, and the Black Sea to the southeast. It has a mainly continental climate, and an area of with a population of 19 million people. Romania is the List of European countries by area, twelfth-largest country in Europe and the List of European Union member states by population, sixth-most populous member state of the European Union. Europe's second-longest river, the Danube, empties into the Danube Delta in the southeast of the country. The Carpathian Mountains cross Romania from the north to the southwest and include Moldoveanu Peak, at an altitude of . Bucharest is the country's Bucharest metropolitan area, largest urban area and Economy of Romania, financial centre. Other major urban centers, urban areas include Cluj-Napoca, Timiș ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TAROM
TAROM (; legally ''Compania Națională de Transporturi Aeriene Române TAROM S.A.'') is the flag carrier and oldest currently operating airline of Romania, based in Otopeni near Bucharest. Its headquarters and its main hub are at Henri Coandă International Airport. It is currently the first and largest airline operating in Romania based on international destinations, international flights and the second-largest measured by fleet size and passengers carried. The brand name is an acronym of the (Romanian Air Transport). Over ninety-seven percent (97.22%) of TAROM is owned by the Romanian Government (Ministry of Transport). The airline transported almost 2.75 million passengers in 2018, with an average load factor of 74%. The airline joined SkyTeam on 25 June 2010. History The beginnings The history of the Romanian National Air Transport Company can be traced back to 1920, when CFRNA - (''French-Romanian Company for Air Navigation'') was founded. On 13 April 1920, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polish Air Force
The Polish Air Force () is the aerial warfare Military branch, branch of the Polish Armed Forces. Until July 2004 it was officially known as ''Wojska Lotnicze i Obrony Powietrznej'' (). In 2014 it consisted of roughly 26,000 military personnel and about 475 aircraft, distributed among ten bases throughout Poland. The Polish Air Force can trace its origins to the second half of 1917 and was officially established in the months following the end of World War I in 1918. During the invasion of Poland by Nazi Germany in 1939, 70% of its aircraft were destroyed. Most pilots, after the Soviet invasion of Poland on 17 September, escaped via Romania and Hungary to continue fighting throughout World War II in allied air forces, first in France, then in Britain, and later also the Soviet Union. History Polish Air Force backline Origins Military aviation in Poland started even before the officially recognised date of regaining independence (11 November 1918). The first independent units of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
