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Mráz Skaut
The Mráz M-2 Skaut was a Czechoslovakian wooden two-seat, single engine, low wing sports aircraft of the late 1940s. In 2005 the design was revisited, resulting in the metal framed, modernised Scout which first flew in 2009 with plans for production and first deliveries in 2011. Design and development The Czechoslovak aircraft factory Mráz introduced several new sport aircraft after World War II. One of them was the M-2 Skaut, designed by Zdeněk Rublič, who later designed the Aero L-29 Delfín trainer jet. His aim was to design an easily flyable and reliable aircraft for basic club pilot training, with moderate operating costs and requiring little maintenance. To simplify production, the wing and tail from his earlier, successful M-1C Sokol design was used. The prototype, first flown in mid-1948, showed that the Skaut was a stable and safe aircraft, pleasantly controllable and with a good field of view. These characteristics together with a side-by-side cockpit and a tricycl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beneš-Mráz
inž. P. Beneš a inž. J. Mráz, továrna na letadla was a Czechoslovak aircraft manufacturer of the 1930s. History Beneš-Mráz was established at Choceň by Pavel Beneš and Jaroslav Mráz on 1 Apr 1935 and manufactured a series of light aircraft of their own design until the Nazi-German occupation. In 1939/40, the company was renamed ''Ing. J. Mráz, továrna na letadla'' - ''Ing. J. Mráz, Flugzeugfabrik''. During the war, the factory was used to produce Fieseler Fi 156 "Storch"s and DFS Kranich training gliders for the German Luftwaffe. Following the war, the company was reconstituted as Ing. J. Mráz, továrna na letadla, národní správa.Gunston, Bill. World Encyclopedia of Aircraft Manufacturers. Naval Institute press. Annapolis. Aircraft See also * Aero Vodochody * Avia * Let Kunovice * Letov Kbely Letov is an aircraft company located in Letňany, Prague, Czech Republic. It is the oldest aircraft company in the region. History Letov was founded in 1918 b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flap (aircraft)
A flap is a high-lift device used to reduce the stalling speed of an aircraft wing at a given weight. Flaps are usually mounted on the wing trailing edges of a fixed-wing aircraft. Flaps are used to reduce the take-off distance and the landing distance. Flaps also cause an increase in drag so they are retracted when not needed. The flaps installed on most aircraft are partial-span flaps; spanwise from near the wing root to the inboard end of the ailerons. When partial-span flaps are extended they alter the spanwise lift distribution on the wing by causing the inboard half of the wing to supply an increased proportion of the lift, and the outboard half to supply a reduced proportion of the lift. Reducing the proportion of the lift supplied by the outboard half of the wing is accompanied by a reduction in the angle of attack on the outboard half. This is beneficial because it increases the margin above the stall of the outboard half, maintaining aileron effectiveness and reduci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beneš-Mráz Aircraft
inž. P. Beneš a inž. J. Mráz, továrna na letadla was a Czechoslovak aircraft manufacturer of the 1930s. History Beneš-Mráz was established at Choceň by Pavel Beneš and Jaroslav Mráz on 1 Apr 1935 and manufactured a series of light aircraft of their own design until the Nazi-German occupation. In 1939/40, the company was renamed ''Ing. J. Mráz, továrna na letadla'' - ''Ing. J. Mráz, Flugzeugfabrik''. During the war, the factory was used to produce Fieseler Fi 156 "Storch"s and DFS Kranich training gliders for the German Luftwaffe. Following the war, the company was reconstituted as Ing. J. Mráz, továrna na letadla, národní správa.Gunston, Bill. World Encyclopedia of Aircraft Manufacturers. Naval Institute press. Annapolis. Aircraft See also * Aero Vodochody * Avia * Let Kunovice * Letov Kbely * Zlin Aircraft Zlin Aircraft a.s. (former well known name Moravan Otrokovice) is a Czech aircraft company. It is located at the Zlín Airfield on the outskirts of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1940s Czechoslovakian Sport Aircraft
Year 194 ( CXCIV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Septimius and Septimius (or, less frequently, year 947 ''Ab urbe condita''). The denomination 194 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus and Decimus Clodius Septimius Albinus Caesar become Roman Consuls. * Battle of Issus: Septimius Severus marches with his army (12 legions) to Cilicia, and defeats Pescennius Niger, Roman governor of Syria. Pescennius retreats to Antioch, and is executed by Severus' troops. * Septimius Severus besieges Byzantium (194–196); the city walls suffer extensive damage. Asia * Battle of Yan Province: Warlords Cao Cao and Lü Bu fight for control over Yan Province; the battle lasts for over 100 day ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Civil Aircraft
List of civil aircraft is a list of articles on civilian aircraft with descriptions, which excludes aircraft operated by military organizations in civil markings, warbirds, warbirds used for racing, replica warbirds and research aircraft. A ABC Motors *ABC Robin single-seat cabin monoplane Abraham * Abraham Iris I & II two-seat parasol monoplane Abrams *Abrams P-1 Explorer pusher survey aircraft Ace Aircraft Manufacturing Company *Ace Baby Ace single-seat parasol monoplane ultralight homebuilt *Ace Junior Ace single-seat parasol monoplane ultralight homebuilt *Ace Scooter single-seat parasol monoplane ultralight homebuilt Acro Sport *Acro Sport I single-seat aerobatic biplane *Acro Sport II two-seat aerobatic biplane *Pober Pixie single-seat parasol monoplane *Pober Super Ace single-seat parasol monoplane Adam Aircraft Industries *Adam A500 twin piston engined executive passenger aircraft * Adam A700 executive jet Adcox *Adcox Student Prince two-seat open biplane Advanced ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zlín 22
The Zlin 22 Junak was a 1940s two-seat cabin monoplane, developed from the Zlin 381 (a licence-built Bücker Bü 181). Development Although based on the Zlin 381, the Junak had side-by-side seating for two. It was a low-wing cantilever monoplane with a conventional tailwheel landing gear. It was powered by a nose-mounted 75 hp (56 kW) Praga D engine, although the prototype had a 57 hp (43 kW) Persy III engine. A three-seat variant, the Zlin 22M, was developed and two prototypes of a three/four-seat tourer variant, the Zlin 122, were built. Variants ;Zlin Z 22 :Prototype with a Persy III engine. ;Zlin Z 22D :Production two-seat variant with a Praga D engine. ;Zlin Z 22M :Three-seat variant with a ) Walter Minor, Walter Minor 4-III engine. ;Zlin Z 122 :Three/four seat development with a 105hp (78kW) Zlin Toma 4 engine, two prototypes only. Operators The 50 pcs Zlín Z-22 was exported into Romania and other 25 pcs to other WE states. ; *Czechoslovakian Air Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Praga D
The Praga Hostivař D was a four-cylinder, air-cooled, horizontally opposed aircraft engine first produced in Czechoslovakia in 1936 but which enjoyed its greatest success after World War II due to the explosion in popularity of sports flying. A version for helicopters was produced post World War II as the Praga DH Applications *Mráz M-2 Skaut *Aero XE-II * IFIL-Reghin RG-6 __NOTOC__ The IFIL-Reghin RG-6 was a light aircraft built in Romania in 1957 for aeroclub use.Taylor 1989, 577 It was designed by Vladimir Novichi at the request of the national sport flying association AVSAP, which specified the use of the Pra ... (1957) Specifications (Praga D) See also References * Further reading * {{cite book , title=Jane's all the World's Aircraft 1947 , editor1-last=Bridgman , editor1-first=Leonard , year=1947 , publisher=Sampson Low, Marston & Co , location=London , page=37d Boxer engines 1930s aircraft piston engines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vrchlabí
Vrchlabí (; german: Hohenelbe, la, Albipolis) is a town in Trutnov District in the Hradec Králové Region of the Czech Republic. It has about 12,000 inhabitants. It lies at the foot of the Giant Mountains on the river Elbe. The town centre with the castle complex, monastery complex and town park is well preserved and is protected by law as an Cultural monument (Czech Republic)#Monument zones, urban monument zone. Administrative parts Vrchlabí is made up of town parts of Vrchlabí, Hořejší Vrchlabí and Podhůří. Etymology The name of the town is closely related with the location on the river Elbe, the oldest name is Latin ''Albipolis'' (''Albi'' = Elbe, ''polis'' = city). Both Czech and German name can be translated as ''Upper Elbe Area''. Geography Vrchlabí is located about northwest of Trutnov and north of Hradec Králové. About half of the municipal territory lies in the Giant Mountains, and its northern part lies in the Krkonoše National Park. The seat of the adm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blade Pitch
Blade pitch or simply pitch refers to the angle of a blade in a fluid. The term has applications in aeronautics, shipping, and other fields. Aeronautics In aeronautics, blade pitch refers to the angle of the blades of an aircraft propeller or helicopter rotor. Blade pitch is measured relative to the aircraft body. It is usually described as "fine" or "low" for a more vertical blade angle, and ,# "coarse" or "high" for a more horizontal blade angle. * i n Blade pitch is normally described as a ratio of forward distance per rotation assuming no slip. Blade pitch acts much like the gearing of the final drive of a car. Low pitch yields good low speed acceleration (and climb rate in an aircraft) while high pitch optimizes high speed performance and fuel economy. It is quite common for an aircraft to be designed with a variable-pitch * propeller, to give maximum thrust over a larger speed range. A fine pitch would be used during take-off and landing, whereas a coarser pitch is u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flat Four
A flat-four engine, also known as a horizontally opposed-four engine, is a four-cylinder piston engine with two banks of cylinders lying on opposite sides of a common crankshaft. The most common type of flat-four engine is the boxer-four engine, each pair of opposed pistons moves inwards and outwards at the same time. A boxer-four engine has perfect primary and secondary balance, however, the two cylinder heads means the design is more expensive to produce than an inline-four engine. Boxer-four engines have been used in cars since 1897, especially by Volkswagen and Subaru. They have also occasionally been used in motorcycles and frequently in aircraft. Cessna and Piper use flat four engines from Lycoming and Continental in the most common civil aircraft in the world - the Cessna 172, and Piper Cherokee, while many ultralight and LSA planes use versions of the Rotax 912. Design Most flat-four engines are designed so that each pair of opposing pistons moves inwards and outw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotax 912ULS
The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. It features liquid-cooled cylinder heads and air-cooled cylinders. Originally equipped with carburetors, later versions are fuel injected. Dominating the market for small aircraft and kitplanes, Rotax produced its 50,000th 912-series engine in 2014. Originally available only for light sport aircraft, ultralight aircraft, autogyros and drones, the 912-series engine was approved for certified aircraft in 1995. Design and development The Rotax 912 was first sold in 1989 in non- certificated form for use in ultralights and motorgliders. The original 912 UL engine has a capacity of and a compression ratio of 9.1:1. The engine differs from previous generation aircraft engines (such as the Lycoming O-235) in that it has air-cooled cylinders with liquid-cooled heads and uses a 2.43:1 PSRU reduction gearbox to reduce the engine's relatively high 5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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