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Motorjet
A motorjet is a rudimentary type of jet engine which is sometimes referred to as ''thermojet'', a term now commonly used to describe a particular and completely unrelated pulsejet design. Design At the heart the motorjet is an ordinary piston engine (hence, the term ''motor''), but instead of (or sometimes, as well as) driving a propeller, it drives a compressor. The compressed air is channeled into a combustion chamber, where fuel is injected and ignited. The high temperatures generated by the combustion cause the gases in the chamber to expand and escape at high velocity from the exhaust, creating a thermal reactive force that provides useful thrust. Motorjet engines provide greater thrust than a propeller alone mounted on a piston engine; this has been successfully demonstrated in a number of different aircraft. A jet engine also can provide thrust at higher speeds where a propeller becomes less efficient or even ineffective; in fact, a jet engine gains efficiency as spee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sukhoi Su-5
The Sukhoi Su-5 or I-107 was a Soviet mixed-power (propeller and motorjet) prototype fighter aircraft built toward the end of World War II. Development The appearance of the German turbojet-powered Messerschmitt Me 262 The Messerschmitt Me 262, nicknamed ''Schwalbe'' (German: "Swallow") in fighter versions, or ''Sturmvogel'' (German: "Procellariidae, Storm Bird") in fighter-bomber versions, is a fighter aircraft and fighter-bomber that was designed and produc ... near the end of World War II prompted the Soviet Union to develop faster fighter aircraft. Since the USSR lacked a production-ready turbojet engine, development efforts were directed toward mixed-power aircraft utilizing a conventional piston engine-driven propeller for the majority of propulsion with a small rocket or jet engine for bursts of speed. The Su-5 (initially I-107) and the conceptually similar Mikoyan-Gurevich I-250 were designed in 1944. The aircraft first flew on 6 April 1945 and underwent limited f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mikoyan-Gurevich I-250
The Mikoyan-Gurevich I-250 (''Samolet N''), aka MiG-13, was a Soviet fighter aircraft developed as part of a crash program in 1944 to develop a high-performance fighter to counter German turbojet-powered aircraft such as the Messerschmitt Me 262. The Mikoyan-Gurevich design bureau decided to focus on a design that used something more mature than the jet engine, which was still at an experimental stage in the Soviet Union, and chose a mixed-power solution with the VRDK (''Vozdushno-Reaktivny Dvigatel Kompressornyi'' – air reaction compressor jet) motorjet powered by the Klimov VK-107 V12 engine. While quite successful when it worked, with a maximum speed of being reached during trials, production problems with the VRDK fatally delayed the program and it was canceled in 1948 as obsolete. Design and development By January 1944 the Soviets were aware of successful British and American jet aircraft projects and that the Germans were about to deploy jet and rocket-propelled aircra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caproni Campini N
Caproni, also known as ''Società de Agostini e Caproni'' and ''Società Caproni e Comitti'', was an Italian aircraft manufacturer. Its main base of operations was at Taliedo, near Linate Airport, on the outskirts of Milan. Founded by Giovanni Battista "Gianni" Caproni during 1908, the company produced several successful heavy bombers during the First World War. Following the acquisition of several other aviation firms throughout the interwar period, Caproni transformed into a sizable aviation-orientated syndicate, the ''Società Italiana Caproni, Milano''. The majority of its aircraft were bombers and transport aircraft. It played a pioneering role in the development of the Caproni Campini N.1, an experimental aircraft powered by a thermo-jet. It provided large numbers of combat aircraft for the Axis during the Second World War. The firm did not prosper in the postwar era, the Società Italiana Caproni collapsing during 1950. Many of the company's former assets were subseq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsu-11
The Ishikawajima Tsu-11 was a motorjet produced in small numbers in Japan in the closing stages of World War II. It was principally designed to propel the Japanese Yokosuka MXY7 Ohka flying bomb, a kamikaze weapon. Design and development The Tsu-11 used a four-cylinder inverted inline Hitachi Hatsukaze ''Toku'' Model 13 piston engine — a license-built version of the German Hirth HM 504 inverted, inline-four cylinder air-cooled engine, with the "model 13" version indicating its adaptation to drive a single-stage compressor. A fuel injection system was fitted behind the compressor. In operation, fuel would be mixed with the compressed air and the resulting mixture ignited, creating thrust. The engine was designed to overcome the major shortcoming of the Ohka Type 11 weapons, that of limited range. The Type 11 was powered by solid-fuel rocket motors, which provided tremendous acceleration, but had a very short burn time. The upshot of this was that the Ohka's carrier aircraf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastman Jacobs
Eastman Jacobs (1902–1987) was a leading aerodynamicist who worked for NACA's Langley Memorial Aeronautical Laboratory (renamed NASA Langley Research Center in 1958) from the 1920s to the 1940s. He was responsible for advancing many fields in aerodynamics, dealing particularly with wind tunnels, airfoils, turbulence, boundary layers, and Schlieren photography. Biography Eastman Jacobs joined NACA in 1925 after earning a bachelor's degree in Electrical Engineering at the University of California, Berkeley. He applied at the Bell Labs but was not accepted and opted for his second choice Langley. His knowledge of complex analysis was key to current airfoil design techniques at the time. He quickly became one of the leading scientists at the Langley Research Center due to his work with optimizing airfoils using a variable density wind tunnel that could operate with high Reynolds numbers. He was also officially the head of the Variable Density Wind Tunnel Division from 1928-1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stipa-Caproni
The Stipa-Caproni, also known as the Caproni Stipa, was an experimental Italian aircraft designed in 1932 by Luigi Stipa (1900–1992) and built by Caproni. It featured a hollow, barrel-shaped fuselage with the engine and propeller completely enclosed by the fuselage—in essence, the whole fuselage was a single ducted fan. Although the ''Regia Aeronautica'' (Italian Royal Air Force) was not interested in pursuing development of the Stipa-Caproni, its design influenced the development of jet propulsion. Stipa's design Stipa’s basic idea, which he called the " intubed propeller", was to mount the engine and propeller inside a fuselage that itself formed a tapered duct, or venturi tube, and compressed the propeller's airflow and the engine exhaust before it exited the duct at the trailing edge of the aircraft, essentially applying Bernoulli's principle of fluid movements to make the aircraft's propeller more efficient. This is a similar principle as is used in turbofan engines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luigi Stipa
Luigi Stipa (30 November 1900 – 9 January 1992) was an Italian aeronautical, hydraulic, and civil engineer and aircraft designer who invented the "intubed propeller" for aircraft, a concept that some aviation historians view as the predecessor of the turbofan engine. Early life and career Stipa was born in Appignano del Tronto, Italy in 30 November 1900. He left school to serve in the Italian Army's Bersaglieri Corps during World War I. After the war, he earned academic degrees in aeronautical engineering, hydraulic engineering and civil engineering. He went to work for the Italian Air Ministry, where he rose to the position of general inspector of the Engineering Division of the ''Regia Aeronautica'' (Italian Royal Air Force). Intubed propeller In the 1920s, Stipa applied his study of hydraulic engineering to develop a theory of how to make aircraft more efficient as they traveled through the air. Noting that in fluid dynamics—in accordance with Bernoulli's principle� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohka
The Yokosuka MXY-7 was a purpose-built, rocket-powered human-guided ''kamikaze'' attack aircraft employed by Japan against Allied ships towards the end of the Pacific War during World War II. Although extremely fast, the very short range of the ''Ohka'' meant that it had to be carried into action as a parasite aircraft by a much larger bomber, which was itself vulnerable to carrier-borne fighters. In action during the Battle of Okinawa in 1945, ''Ohkas'' were able to sink or damage some escort vessels and transport ships but no major warships were ever sunk. Improved versions which attempted to overcome the aircraft's shortcomings were developed too late to be deployed. Allied troops referred to the aircraft as "Baka Bombs". Design and development The MXY-7 Navy Suicide Attacker ''Ohka'' was a manned flying bomb that was usually carried underneath a Mitsubishi G4M2e Model 24J "Betty" bomber to within range of its target. On release, the pilot would first glide towards the tar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Secondo Campini
Secondo Campini (August 28, 1904 – February 7, 1980) was an Italian engineer and one of the pioneers of the jet engine. Campini was born at Bologna, Emilia-Romagna. In 1931 he wrote a proposal for the Italian Air Ministry on the value of jet propulsion, and in 1932 demonstrated a jet-powered boat in Venice. With support of the Air Ministry, he began work with Italian aircraft manufacturer Caproni to develop a jet aircraft, the Caproni Campini C.C.2, which first flew in 1940. The "motorjet" that Campini developed to propel the C.C.2 is substantially different from the jet engines of today. Campini's engine used a conventional piston engine to compress air, which was then mixed with fuel and ignited. Modern jets are based on the turbojet principle, but Campini's engine was nevertheless a true jet, since it was the reactive force of the burning exhaust gases that pushed the aircraft along. After World War II, Campini emigrated to the US at the request of Preston Tucker (noted f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WRDK
WRDK (90.7 FM) was a radio station licensed to serve Bladenboro, North Carolina, United States. The station was owned by Richburg Educational Broadcasters, Inc. The station surrendered its license on March 12, 2018; the Federal Communications Commission The Federal Communications Commission (FCC) is an independent agency of the United States federal government that regulates communications by radio, television, wire, satellite, and cable across the United States. The FCC maintains jurisd ... cancelled it on March 22. References External links RDK Radio stations established in 2011 2011 establishments in North Carolina Radio stations disestablished in 2018 2018 disestablishments in North Carolina Defunct radio stations in the United States RDK {{NorthCarolina-radio-station-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas Turbine
A gas turbine, also called a combustion turbine, is a type of continuous flow internal combustion engine. The main parts common to all gas turbine engines form the power-producing part (known as the gas generator or core) and are, in the direction of flow: * a rotating gas compressor * a combustor * a compressor-driving turbine. Additional components have to be added to the gas generator to suit its application. Common to all is an air inlet but with different configurations to suit the requirements of marine use, land use or flight at speeds varying from stationary to supersonic. A propelling nozzle is added to produce thrust for flight. An extra turbine is added to drive a propeller ( turboprop) or ducted fan (turbofan) to reduce fuel consumption (by increasing propulsive efficiency) at subsonic flight speeds. An extra turbine is also required to drive a helicopter rotor or land-vehicle transmission ( turboshaft), marine propeller or electrical generator (power turbine). Grea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 World War II by country, vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies of World War II, Allies and the Axis powers. World War II was a total war that directly involved more than 100 million Military personnel, 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. Air warfare of World War II, Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the Atomic bombings of Hiroshima and Nagasaki, only two nuclear weapons ever used in war. World War II was by far the List of wars by death toll, deadliest conflict in hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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