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Herbert A. Wagner
Herbert Alois Wagner (22 May 1900 – 28 May 1982) was an Austrian scientist who developed numerous innovations in the fields of aerodynamics, aircraft structures and guided weapons. He is most famous for Wagner's function describing unsteady lift on wings and developing the Henschel Hs 293 glide bomb. Early life Wagner attended the Austrian Naval Academy from 1914 to 1917 and served as an Ensign in the Austrian Navy during World War I. He survived the sinking of his ship after it was struck by an enemy torpedo. After the war he returned to his studies, earning a doctorate from ''Technische Hochschule Berlin'' (today Technische Universität Berlin) when he was only 23. His doctoral thesis entitled "Origin of the dynamic lift of wings" contained the solution of one of fundamental unsteady aerodynamics problems concerned with lift force on wings that are suddenly set into motion. The result later became known as "Wagner's function". In the mid-1920s he worked for Rohrbach Metall- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graz
Graz () is the capital of the Austrian Federal states of Austria, federal state of Styria and the List of cities and towns in Austria, second-largest city in Austria, after Vienna. On 1 January 2025, Graz had a population of 306,068 (343,461 including secondary residence). In 2023, the population of the Graz larger urban zone (LUZ) stood at 660,238. Graz is known as a city of higher education, with four colleges and four universities. Combined, the city is home to more than 60,000 students. Its historic centre (''Altstadt'') is one of the best-preserved city centres in Central Europe. In 1999, the city's historic centre was added to the UNESCO list of World Heritage Sites and in 2010 the designation was expanded to include Eggenberg Palace, Graz, Eggenberg Palace () on the western edge of the city. Graz was designated the Cultural Capital of Europe in 2003 and became a City of Culinary Delights in 2008. In addition, the city is recognized as a "Design Cities (UNESCO), Design City ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glide Bomb
A glide bomb or stand-off bomb is a standoff weapon with flight control surfaces to give it a flatter, gliding flight path than that of a conventional bomb without such surfaces. This allows it to be released at a distance from the target rather than right over it, allowing a successful attack without exposing the launching aircraft to anti-aircraft defenses near the target. Glide bombs can accurately deliver warheads in a manner comparable to cruise missiles at a fraction of the cost—sometimes by installing flight control kits on simple unguided bombs—and they are very difficult for surface-to-air missiles to intercept due to their tiny radar signatures and short flight times. The only effective countermeasure in most cases is to shoot down enemy aircraft before they approach within launching range, making glide bombs very potent weapons where wartime exigencies prevent this. World War II-era glide bombs like the German Fritz X and Henschel Hs 293 pioneered the use o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMT Rohna
HMT ''Rohna'' was a British India Steam Navigation Company passenger and cargo liner that was built on Tyneside in 1926 as SS ''Rohna'' and requisitioned as a troop ship in 1940. ("HMT" stands for His Majesty's Transport.) ''Rohna'' was sunk in the Mediterranean in November 1943 by a Henschel Hs 293 guided glide bomb launched by a ''Luftwaffe'' aircraft. More than 1,100 people were killed, most of whom were US troops. Building In 1925, British India Line ordered two new ships for its Madras– Nagapatam–Singapore service. They were sister ships but were built by different shipyards and had different engines. Hawthorn Leslie and Company built ''Rohna'' at its shipyard at Hebburn on Tyneside. Barclay, Curle and Company built in Glasgow on Clydeside. Both ships were launched and completed in 1926. ''Rohna'' was launched on 24 August 1926 and completed on 5 November. She was named after a village in Sonipat, Punjab, India. She had 15 corrugated furnaces that heated five single- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS Egret (L75)
HMS ''Egret'' was a sloop of the British Royal Navy, the lead ship of her class. She was built by J. Samuel White at Cowes, Isle of Wight, was launched on 31 May 1938, and entered service on 11 November that year. ''Egret'' served as a convoy escort with the Western Approaches Command from 1940 until her loss in August 1943: She was on anti-submarine patrol in the Bay of Biscay when she was sunk by a guided missile in combat, the first ship to be lost in this manner. Construction On 5 March 1937, the British Admiralty ordered two sloops-of-war of a new class, ''Egret'' and as part of the 1936 construction programme. ''Egret'' was laid down at J. Samuel White's Cowes, Isle of Wight shipyard on 21 September 1937. The ship was launched on 31 May 1938 and completed on 10 November 1938. Service history At the outbreak of the Second World War ''Egret'' was at Laurenco Marques in East Africa. She was briefly employed in hunting for raiders in the Indian Ocean before returning to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guided Missile
A missile is an airborne ranged weapon capable of Propulsion, self-propelled flight aided usually by a propellant, jet engine or rocket motor. Historically, 'missile' referred to any projectile that is thrown, shot or propelled towards a target; this usage is still recognized today with any unguided jet- or rocket-propelled weapons generally described as rocket artillery. Airborne explosive devices without propulsion are referred to as shell (projectile), shells if fired by an artillery piece and Aerial bomb, bombs if dropped by an aircraft. Missiles are also generally missile guidance, guided towards specific targets termed as guided missiles or guided Rocket (weapon), rockets. Missile systems usually have five system components: targeting (warfare), targeting, guidance system, flight system, engine, and warhead. Missiles are primarily classified into different types based on firing source and target such as surface-to-surface missile, surface-to-surface, air-to-surface missi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hs 293
The Henschel Hs 293 was a World War II German radio-guided glide bomb. It is the first operational anti-shipping missile, first used unsuccessfully on 25 August 1943 and then with increasing success over the next year, damaging or sinking at least 25 ships. Allied efforts to jam the radio control link were increasingly successful despite German efforts to counter them. The weapon remained in use through 1944 when it was also used as an air-to-ground weapon to attack bridges to prevent the Allied breakout after D-Day, but proved almost useless in this role. Development The Hs 293 project started in 1940, based on the "Gustav Schwartz Propellerwerke" pure glide bomb designed in 1939. The Schwartz design did not have a terminal guidance system; instead, it used an autopilot to maintain a straight course. It was intended to be launched from a bomber at sufficient distance to keep the aircraft out of range of anti-aircraft fire. A Henschel team, under Herbert Wagner, developed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ministry Of Aviation (Germany)
The Ministry of Aviation (, abbreviated RLM) was a government department during the period of Nazi Germany (1933–45). It is also the original name of the Detlev-Rohwedder-Haus building on the Wilhelmstrasse in central Berlin, Germany, which houses the modern German Finance Ministry (). The Ministry was in charge of development and production of all aircraft developed, designed, and built in Germany during the existence of the Third Reich, overseeing all matters concerning both military and civilian designs – it handled military aviation matters as its top priority, particularly for the Luftwaffe. As was characteristic of government departments in the Nazi era, the Ministry was personality-driven and formal procedures were often ignored in favour of the whims of the Minister, ''Reichsmarschall'' Hermann Göring. As a result, early successes in aircraft development progressed only slowly and erratically during World War II. History The Ministry was formed on 27 April 1933 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Konrad Zuse
Konrad Ernst Otto Zuse (; ; 22 June 1910 – 18 December 1995) was a German civil engineer, List of pioneers in computer science, pioneering computer scientist, inventor and businessman. His greatest achievement was the world's first programmable computer; the functional program-controlled Turing completeness, Turing-complete Z3 (computer), Z3 became operational in May 1941. Thanks to this machine and its predecessors, Zuse is regarded by some as the inventor and father of the modern computer. Zuse was noted for the S2 computing machine, considered the first process control computer. In 1941, he founded one of the earliest computer businesses, producing the Z4 (computer), Z4, which became the world's first commercial computer. From 1943 to 1945 he designed Plankalkül, the first high-level programming language. In 1969, Zuse suggested the concept of a digital physics, computation-based universe in his book (''Calculating Space''). Much of his early work was financed by his f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henschel & Son
Henschel & Son () was a German company, located in Kassel, best known during the 20th century as a maker of transportation equipment, including locomotives, trucks, buses and trolleybuses, and armoured fighting vehicles and weapons. Georg Christian Carl Henschel founded the factory in 1810 at Kassel. His son Carl Anton Henschel founded another factory in 1837. In 1848, the company began manufacturing locomotives. The factory became the largest locomotive manufacturer in Germany by the 20th century. Henschel built 10 articulated steam trucks, using Doble steam car, Doble steam designs, for Deutsche Reichsbahn-Gesellschaft, Deutsche Reichsbahn railways as delivery trucks. Several cars were built as well, one of which became Hermann Göring's staff car. In 1935 Henschel was able to upgrade its various steam locomotives to a high-speed Streamliner type with a maximum speeds of up to by the addition of a removable shell over the old steam locomotive. In 1918, Henschel began the pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Engine
A jet engine is a type of reaction engine, discharging a fast-moving jet (fluid), jet of heated gas (usually air) that generates thrust by jet propulsion. While this broad definition may include Rocket engine, rocket, Pump-jet, water jet, and hybrid propulsion, the term typically refers to an internal combustion airbreathing jet engine, air-breathing jet engine such as a turbojet, turbofan, ramjet, pulse jet engine, pulse jet, or scramjet. In general, jet engines are internal combustion engines. Air-breathing jet engines typically feature a Axial compressor, rotating air compressor powered by a turbine, with the leftover power providing thrust through the propelling nozzle—this process is known as the Brayton cycle, Brayton thermodynamic cycle. Jet aircraft use such engines for long-distance travel. Early jet aircraft used turbojet engines that were relatively inefficient for subsonic flight. Most modern subsonic jet aircraft use more complex High-bypass turbofan, high-bypas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Von Ohain
Hans Joachim Pabst von Ohain (14 December 191113 March 1998) was a German physicist, engineer, and the designer of the first aircraft to use a turbojet engine. Together with Frank Whittle and Anselm Franz, he has been described as the co-inventor of the turbojet engine. However, the historical timelines show that von Ohain was still a university student when, in January 1930, Whittle filed his first patent for a turbojet engine and successfully tested his first engine in April 1937, some 6 months before von Ohain. Additionally, prior to building his engine and filing his own patent in 1935, von Ohain had read and critiqued Whittle's patents.Margaret Conner, Hans von Ohain: Elegance in Flight (Reston, Virginia: American Institute for Aeronautics and Astronautics, Inc., 2001), page 31 Von Ohain stated in his biography that "My interest in jet propulsion began in the fall of 1933 when I was in my seventh semester at Göttingen University. I didn't know that many people before me had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Junkers
Junkers Flugzeug- und Motorenwerke AG (JFM, earlier JCO or JKO in World War I, English language, English: Junkers Aircraft and Motor Works) more commonly Junkers , was a major German aircraft manufacturer, aircraft and aircraft engine manufacturer. It was founded in Dessau, Germany, in 1895 by Hugo Junkers, initially manufacturing boilers and radiator (heating), radiators. During World War I and following the war, the company became famous for its pioneering all-metal aircraft. During World War II the company produced the Luftwaffe, German air force's planes, as well as piston engine, piston and jet engine, jet aircraft engines, albeit in the absence of its founder who had been removed by the Nazis in 1934. History Early inter-war period In the immediate post-war era, Junkers used their J8 layout as the basis for the F-13, first flown on 25 June 1919 and certified airworthy in July of the same year. This four passenger monoplane was the world's first all-metal airliner. Of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
