Praga B2
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Praga B2
The Praga B2 was a low powered aero engine suitable for very light aircraft. It dates from the mid-1930s. Design The Praga B2 was a dual ignition, air-cooled horizontal twin producing 40 horsepower (30 kW) aimed at lightweight aircraft. It was a higher compression version (6.7:1 from the earlier 5.72:1) of the original and otherwise very similar Praga B, which provided 36 hp (27 kW). Its cylinders were machined from alloy steel forgings and had aluminium alloy heads. The pistons were of aluminium alloy, with three compression rings and one scraper ring. The connecting rods were of nitrided steel, with divided big ends and bronze bushes at the little ends. The one piece crankshaft was also formed from nitrided steel and had two main roller bearings and a single ball thrust bearing. The single piece crankcase was cast from an aluminium alloy. 135 units in all, including B and B2 variants were built.
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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 ...
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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 ...
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List Of Aircraft Engines
This is an alphabetical list of aircraft engines by manufacturer. 0–9 2si *2si 215 *2si 230 * 2si 430 * 2si 460 *2si 500 * 2si 540 * 2si 690 3W ''Source: RMV'' *3W 106iB2 *3W-110 *3W-112 *3W-170 *3W-210 *3W-220 A Abadal (Francisco Serramalera Abadal) *Abadal Y-12 350/400 hp ABC ''Source: Lumsden.'' * ABC 8 hp * ABC 30hp V-4 * ABC 45hp V-6 * ABC 60hp V-8 * ABC 85hp V-6 * ABC 100hp V-8 * ABC 115 hp * ABC 170hp V-12 * ABC 225hp V-16 *ABC Dragonfly *ABC Gadfly *ABC Gnat *ABC Hornet * ABC Mosquito *ABC Scorpion *ABC Wasp *ABC type 10 APU *ABC type 11 APU ABECO ''Source: RMV'' *ABECO GEM Aberg ''Source: RMV'' *Type Sklenar ABLE ''Source: RMV'', Able Experimental Aircraft Engine Co. (Able Experimental Aircraft Engine Co., Altimizer, Hoverhawk (US)) *ABLE 2275 *ABLE 2500 *ABLE VW x 2 Geared Drive Accurate Automation Corp *Accurate Automation AT-1500 *Accurate Automation AT-1700 Ace (Ace American Engr Corp, Horace Keane Aeroplane Co, North Beac ...
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Praga E
Praga is a district of Warsaw, Poland. It is on the east bank of the river Vistula. First mentioned in 1432, until 1791 it formed a separate town with its own city charter. History The historical Praga was a small settlement located at the eastern bank of the Vistula river, directly opposite the towns of Old Warsaw and Mariensztat, both being parts of Warsaw now. First mentioned in 1432, it derived its name from the Polish verb ''prażyć'', meaning ''to burn'' or ''to roast'', as it occupied a forested area that was burnt out to make place for the village. Separated from Warsaw by a wide river, it developed independently of the nearby city, and on 10 February 1648 king Władysław IV of Poland granted Praga with a city charter. However, as it was mostly a suburb and most buildings were wooden, the town was repeatedly destroyed by fires, floods and foreign armies. Currently the only surviving historical monument from that epoch is the Church of Our Lady of Loreto. Altho ...
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Flying Flea
The Flying Flea (french: Pou du Ciel, lit=Louse of the Sky) is a large family of light homebuilt aircraft first flown in 1933. The odd name comes from the French nickname for the Ford Model T automobile: ''Pou de la Route'', or "Louse of the Road", because Henry Ford's economy car was so common. Henri Mignet dreamed of creating a Model T of the air, an airplane for the common man, hence the term ''Pou du Ciel''. In English, the term became Flying Flea. Originally applied only to the HM.14 model, the name has now come to describe the family of aircraft of similar configuration designed by Mignet and others. Development The Flying Flea family of aircraft was designed by Frenchman Henri Mignet.Plane and Pilot (1977), p. 142 Between 1920 and 1928, Mignet built various prototypes from the HM.1 to the HM.8, a monoplane that was the first of his designs that really flew. Instructions for building the HM.8 Avionnette were published by Mignet in a self-published book—he hand wrote th ...
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Hillson Pennine
__NOTOC__ The Hillson Pennine was a 1930s United Kingdom two-seat cabin monoplane designed by Norman Sykes and built by F Hills & Sons of Trafford Park. Design and development The Pennine was a small high-wing braced monoplane powered by a Praga B two-cylinder piston engine, though originally designed for an Aspin engine. It was wooden-built and had fixed tailwheel landing gear. The Pennine, designed to be simple, had an unconventional control system with a normal elevator and spoilers on the leading edge of the mainplane, but had a fixed rudder with just a trim tab and no ailerons. Started in 1936 and completed in 1937 it was moved to Barton Aerodrome City Airport is an airport in Barton-upon-Irwell, Greater Manchester, England, west of Manchester. Formerly known as Barton Aerodrome and City Airport Manchester, It is known by the Civil Aviation Authority (CAA) as Manchester/Barton. The U .... The Penine became airborne during a high-speed taxi test on 4 February 193 ...
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De Schelde Scheldemusch
The de Schelde Scheldemusch was a single-seat pusher biplane designed in the Netherlands to be easy and safe to fly. It was one of the first light aircraft to use a tricycle undercarriage. Despite a sales campaign in the UK, only six were built, one being briefly tested by the RAF. A single example of a flying boat version, one of the smallest of this class, was also built. Design and development In 1935 the Dutch dockyard ''NV Koninklijke Maatschappij De Schelde'', based at Vlissingen (Flushing) on the Schelde (Scheldt) estuary moved into aircraft manufacture with the acquisition of the staff of the Pander Company. Under their designer Theodor E. Slot, de Schelde produced several different aircraft, the second of which was the Scheldemusch. In pre-war Dutch "musch" translated to English as "sparrow", though modern Dutch would use "mus" and the name sometimes appears as Scheldemus. It was also sometimes anglicized to Scheldt Sparrow. The unconventional appearance of the pusher ...
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AVEX Yakstas Racer
is a Japanese entertainment conglomerate led by founder Max Matsuura and headquartered in Tokyo, Japan. Founded in 1988, the company manages J-pop talents like Ayumi Hamasaki and internet sensation PikoTaro. It has also shifted into other business domains like anime, video games and live music events, partnering with Ultra Music Festival and hosting the annual A-nation. The company is a member of the Mitsubishi UFJ Financial Group (MUFG) ''keiretsu''. Name Avex is an acronym of the English words Audio Visual Expert. Since its foundation, its corporate name was Avex D.D., Incorporated, and ten years later it was changed to Avex, Incorporated. The current name, Avex Group Holdings, Incorporated, was adopted in 2004 as part of reconstruction process after Tom Yoda's resignation. Avex Group Holdings, Incorporated was used for the main subsidiaries, while the old name (Avex, Incorporated) was for entertainment components of the Group. In 2005, Avex, Incorporated became Avex Enter ...
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Alaparma A
__NOTOC__ Alaparma was an Italian aircraft manufacturer of the immediate post-World War II period. It was founded in 1945 by designer Capt Adriano Mantelli and Livio Agostini to produce an unusual light aircraft developed by Mantelli during the war, initially as the Tucano and later as the Baldo. See also * List of Italian companies Italy is a unitary parliamentary republic in Europe with the third largest nominal GDP in the Eurozone and the eighth largest in the world. As an advanced economy the country also has the sixth worldwide national wealth and it is ranked third fo ... References * * {{cite book , last= Simpson , first= R. W. , title=Airlife's General Aviation , year=1995 , publisher=Airlife Publishing , location=Shrewsbury , pages=404 Defunct aircraft manufacturers of Italy ...
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Bradford
Bradford is a city and the administrative centre of the City of Bradford district in West Yorkshire, England. The city is in the Pennines' eastern foothills on the banks of the Bradford Beck. Bradford had a population of 349,561 at the 2011 census; the second-largest population centre in the county after Leeds, which is to the east of the city. It shares a continuous built-up area with the towns of Shipley, Silsden, Bingley and Keighley in the district as well as with the metropolitan county's other districts. Its name is also given to Bradford Beck. It became a West Riding of Yorkshire municipal borough in 1847 and received its city charter in 1897. Since local government reform in 1974, the city is the administrative centre of a wider metropolitan district, city hall is the meeting place of Bradford City Council. The district has civil parishes and unparished areas and had a population of , making it the most populous district in England. In the century leadin ...
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