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Asymmetrical Aircraft
Asymmetrical aircraft have left- and right-hand sides which are not exact mirror images of each other. Although most aircraft are symmetrical, there is no fundamental reason why they must be, and design goals can sometimes be best achieved with an asymmetrical aircraft. Types of asymmetry Asymmetry arises from a number of design decisions. Some are inherent in the type of aircraft, while others are consciously introduced. Engine torque On a powerful propeller-driven aircraft, the engine torque driving the propeller creates an equal and opposite torque on the engine itself. Because the engine is fixed to the airframe, this reactive torque is transmitted to the aircraft, causing a tendency to roll in the opposite direction to the propeller. On some early types, especially during the pioneer years, a single engine drove twin propellers and the drive was arranged to turn the propellers in opposite directions to cancel their torque. Examples include the Wright Flyer and the early desi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torque
In physics and mechanics, torque is the rotational equivalent of linear force. It is also referred to as the moment of force (also abbreviated to moment). It represents the capability of a force to produce change in the rotational motion of the body. The concept originated with the studies by Archimedes of the usage of levers, which is reflected in his famous quote: "''Give me a lever and a place to stand and I will move the Earth''". Just as a linear force is a push or a pull, a torque can be thought of as a twist to an object around a specific axis. Torque is defined as the product of the magnitude of the perpendicular component of the force and the distance of the line of action of a force from the point around which it is being determined. The law of conservation of energy can also be used to understand torque. The symbol for torque is typically \boldsymbol\tau, the lowercase Greek letter ''tau''. When being referred to as moment of force, it is commonly denoted by . In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gotha G
''Gothaer Waggonfabrik'' (''Gotha'', GWF) was a German manufacturer of rolling stock established in the late nineteenth century at Gotha. During the two world wars, the company expanded into aircraft building. World War I In World War I, Gotha was the manufacturer of a highly successful series of bombers based on a 1914 design by Oskar Ursinus, but heavily reimagined by Hans Burkhard. From 1917, the Burkhard-designed twin pusher biplane bomber aircraft were capable of carrying out strategic bombing missions over England, the first heavier-than-air aircraft used in this role. Several dozen of these bombers were built in a number of subtypes - the Ursinus-based Gotha G.I, and the succeeding Burkhard-designed G.II, G.III, G.IV, and G.V. This last variant was the most prolific, with thirty-six in squadron service at one point. Inter war years Whilst Germany was prohibited from military aircraft manufacture by the Treaty of Versailles, Gotha returned to its railway endeavou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scaled Composites ARES
The Scaled Composites ARES is a demonstrator aircraft built by Scaled Composites. ARES is an acronym for ''Agile Responsive Effective Support''. Development In 1981, U.S. Army Aviators Jim Kreutz and Milo Burroughs undertook a study for a ''low cost battlefield attack aircraft'' (LCBAA), as they felt the close air support aircraft available were inadequate to support the U.S. Army operations. They decided that a fixed-wing aircraft with excellent maneuvering capabilities at very low altitudes and resistance to stall would be necessary. Burt Rutan joined their study to design an aircraft to meet the requirements with a two-phase program. The first phase was the preliminary design of LCBAA, while in the second phase the Long EZ aircraft was modified to serve as a technology demonstrator. The original layout was of a low wing canard configuration, aircraft powered by a pusher turboprop, and built around a 30 mm Gatling gun capable of destroying light armored vehicles. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rutan Boomerang
__NOTOC__ The Rutan Model 202 Boomerang is an aircraft designed and built by Burt Rutan. The design was intended to be a multi-engine aircraft that in the event of failure of a single engine would not become dangerously difficult to control due to asymmetric thrust. The result is an asymmetrical aircraft with a very distinct appearance. Design and development The Boomerang was designed around the specifications of the Beechcraft Baron 58, one of the best known and most numerous twin-engine civilian aircraft. The use of the asymmetrical design allows the Boomerang to fly faster and farther than the Baron using smaller engines, and seating the same number of occupants. The Boomerang is powered by two engines, with the right engine producing 10 hp (8 kW) more power than the left one (the engines are in fact the same model, just rated differently). The wings are forward-swept.Schapiro, Steve.Burt Rutan's Favorite Ride, Air & Space/Smithsonian, September 2012. Retrieved: 11 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Napier Sabre
The Napier Sabre is a British H-24-cylinder, liquid-cooled, sleeve valve, piston aero engine, designed by Major Frank Halford and built by D. Napier & Son during World War II. The engine evolved to become one of the most powerful inline piston aircraft engines in the world, developing from in its earlier versions to in late-model prototypes. The first operational aircraft to be powered by the Sabre were the Hawker Typhoon and Hawker Tempest; the first aircraft powered by the Sabre was the Napier-Heston Racer, which was designed to capture the world speed record. Other aircraft using the Sabre were early prototype and production variants of the Blackburn Firebrand, the Martin-Baker MB 3 prototype and a Hawker Fury prototype. The rapid introduction of jet engines after the war led to the quick demise of the Sabre, as there was less need for high power military piston aero engines and because Napier turned its attention to developing turboprop engines such as the Naiad and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Messerschmitt P
Messerschmitt AG () was a German share-ownership limited, aircraft manufacturing corporation named after its chief designer Willy Messerschmitt from mid-July 1938 onwards, and known primarily for its World War II fighter aircraft, in particular the Bf 109 and Me 262. The company survived in the post-war era, undergoing a number of mergers and changing its name from Messerschmitt to Messerschmitt-Bölkow-Blohm before being bought by Deutsche Aerospace (DASA, now part of Airbus) in 1989. History Background In February 1916, the south German engineering company MAN AG and several banks purchased the unprofitable aircraft builder Otto-Flugzeugwerke, starting a new company, ''Bayerische Flugzeugwerke AG'' (abbreviated ''B.F.W.''). The articles of association were drawn up on 19 and 20 February, and completed on 2 March 1916. Details of the company were recorded in the Commercial Register with an equity capital of RM 1,000,000 on 7 March 1916. 36% of the capital was provided ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oblique Wing
An oblique wing (also called a slewed wing) is a variable geometry wing concept. On an aircraft so equipped, the wing is designed to rotate on center pivot, so that one tip is swept forward while the opposite tip is swept aft. By changing its sweep angle in this way, drag can be reduced at high speed (with the wing swept) without sacrificing low speed performance (with the wing perpendicular). This is a variation on the classic swing-wing design, intended to simplify construction and retain the center of gravity as the sweep angle is changed. History The oldest examples of this technology are the unrealized German aircraft projects Blohm & Voss P.202 and Messerschmitt Me P.1009-01 from the year 1944, based on a Messerschmitt patent. After the war, constructor Dr. Richard Vogt was brought to the US during Operation Paperclip. The oblique wing concept was resurrected by Robert T. Jones, an aeronautical engineer at the NASA Ames Research Center, Moffett Field, California. Analytic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blohm & Voss P 202
The Blohm & Voss P.202 was an unusual design study for a variable-geometry jet fighter during World War II. It was the first design to incorporate a slewed wing (also known as an oblique or scissor wing) in which one side swept forward and the other back. The P.202 was never built or flown. Design The high speeds attainable by jet aeroplanes led German workers to develop the swept wing, in order to minimise the problems met as the speed of sound was approached. But sweeping the wings causes problems of its own, especially at the low speeds used for takeoff and landing. A variable-sweep mechanism was one possible solution but it would be complex, heavy and expensive. It also has problems with movement of the centre of lift. Both backwards and forwards sweep were investigated and they proved to have opposite disadvantages. Sweeping one wing forwards and the other back would balance out the aerodynamic problems and a one-piece slewed wing approach would not need such a complex sweep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blohm & Voss P
Blohm is a surname. Notable people with the surname include: *Hans Blohm C.M. (born 1927), photographer and author *Hermann Blohm (1848–1930), German businessman and co-founder of German company Blohm+Voss *Linn Blohm (born 1992), Swedish handball player for IK Sävehof and the Swedish national team *Robert Blohm (born 1948), American and Canadian investment banker, economist and statistician, professor in China's Central University of Finance and Economics *Tom Blohm (1920–2000), Norwegian football player See also *Blohm + Voss, a German shipbuilding and engineering works *Blom *Bohm (other) Bohm may refer to: * Bohm (surname) * Bohm Dialogue, free-flowing group conversation Physics * Aharonov–Bohm effect of electromagnetic potential on a particle * Bohm sheath criterion for a Debye sheath plasma layer * Bohm diffusion of plasma in ... {{surname de:Blohm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blohm & Voss P 178
The Blohm & Voss P 178 was a German jet-powered dive bomber/fighter-bomber of unusual asymmetric form, proposed during World War II. Overview This asymmetrically-designed dive bomber had one Junkers Jumo 004B turbojet located under the wing to the starboard side of the fuselage. The pilot sat in a cockpit in the forward fuselage, with a large fuel tank located to the rear of the cockpit. Beneath the fuel tank, there was a deep recess in which an SC 500 bomb could be carried within the fuselage, or an SC 1000 bomb which would protrude slightly out of the fuselage. Two solid-fuel auxiliary rockets extended from the rear, used for take-off. Two 15 mm (.60 in) MG 151 cannons were located in the nose.Jean-Denis Lepage, ''Aircraft of the Luftwaffe, 1935-1945: An Illustrated Guide'' Specifications See also *List of German aircraft projects, 1939–45 A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blohm & Voss BV 237
The Blohm & Voss BV 237 was a German proposed dive bomber with an unusual asymmetric design based on the Blohm & Voss BV 141. Design and development In 1942, the ''Luftwaffe'' was interested in replacing the venerable but ageing Junkers Ju 87, and Dr. Richard Vogt's design team at Blohm & Voss began work on project P 177. The dive bomber version would have had a one-man crew with two fixed forward firing MG 151 cannon and two rear firing MG 131 machine guns, carrying of bombs. A two-seat ground attack version was also proposed with two fixed forward firing MG 151 cannon, three forward firing MK 103 cannon with six bombs. A final B-1 type was to incorporate a Junkers Jumo 004B turbojet engine in a third nacelle slung underneath the wing, between the piston engine and the cockpit. In early 1943 the B&V design, now called the BV 237, was shown to Hitler and he ordered it into production. However the order was not carried out.Hans Amtmann; "Blohm und Voss Remembered", Part 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blohm & Voss BV 141
The Blohm & Voss BV 141 was a World War II German tactical reconnaissance aircraft, notable for its uncommon structural asymmetry. Although the Blohm & Voss BV 141 performed well, it was never ordered into full-scale production, for reasons that included the unavailability of the preferred engine and competition from another tactical reconnaissance aircraft, the Focke-Wulf Fw 189. Development In 1937, the German Air Ministry – the ''Reichsluftfahrtministerium'' (RLM) – issued a specification for a single-engine reconnaissance aircraft with optimal visual characteristics. The preferred contractor was Arado with the Ar 198, but the prototype proved unsuccessful.. The eventual winner was the Focke-Wulf Fw 189 ''Uhu''; even though its twin-boom design using two smaller engines did not match the requirement of a single engined aircraft. Blohm & Voss ( Hamburger Flugzeugbau) although not invited to participate, pursued as a private venture something far more radical. The proposa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
