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Negative Stagger
In aviation, stagger is the relative horizontal fore-aft positioning of stacked wings in a biplane, triplane, or multiplane. An aircraft is said to have ''positive stagger'', or simply ''stagger'', when the upper wing is positioned forward of the lower (bottom) wing,NACA technical report No.310 ''Wind Tunnel Pressure Distribution Tests on a Series of Biplane Wing Models'' (July 1929), p.17. Retrieved on 8 February 2009. Examples include the de Havilland Tiger Moth or Stearman. Conversely, an aeroplane is said to have ''negative stagger'' in unusual cases where the upper wing is pos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sopwith Dolphin
The Sopwith 5F.1 Dolphin was a British fighter aircraft manufactured by the Sopwith Aviation Company. It was used by the Royal Flying Corps and its successor, the Royal Air Force, during the World War I, First World War. The Dolphin entered service on the Western Front (World War I), Western Front in early 1918 and proved to be a formidable fighter. The aircraft was not retained in the postwar inventory and was retired shortly after the war. Design and development In early 1917, the Sopwith chief engineer, Herbert Smith, began designing a new fighter (internal Sopwith designation 5F.1) powered by the geared 200 hp Hispano-Suiza 8B.Franks 2002, p. 7. The resulting Dolphin was a two-bay, single-seat biplane, with the upper wings attached to an open steel cabane strut, cabane frame above the cockpit. To maintain the correct centre of gravity, the lower wings were positioned forward of the upper wings, creating the Dolphin's distinctive negative wing Stagger (aeronautics) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flight Dynamics
Flight dynamics in aviation and spacecraft, is the study of the performance, stability, and control of vehicles flying through the air or in outer space. It is concerned with how forces acting on the vehicle determine its velocity and attitude with respect to time. For a fixed-wing aircraft, its changing orientation with respect to the local air flow is represented by two critical angles, the angle of attack of the wing ("alpha") and the angle of attack of the vertical tail, known as the sideslip angle ("beta"). A sideslip angle will arise if an aircraft yaws about its centre of gravity and if the aircraft sideslips bodily, i.e. the centre of gravity moves sideways.Flightwise - Volume 2 - Aircraft Stability And Control, Chris Carpenter 1997, Airlife Publishing Ltd., , p.145 These angles are important because they are the principal source of changes in the aerodynamic forces and moments applied to the aircraft. Spacecraft flight dynamics involve three main forces: propulsive (ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Center Of Pressure (fluid Mechanics)
In fluid mechanics, the center of pressure is the point where the total sum of a pressure field acts on a body, causing a force to act through that point. The total force vector acting at the center of pressure is the surface integral of the pressure vector field across the surface of the body. The resultant force and center of pressure location produce an equivalent force and moment on the body as the original pressure field. Pressure fields occur in both static and dynamic fluid mechanics. Specification of the center of pressure, the reference point from which the center of pressure is referenced, and the associated force vector allows the moment generated about any point to be computed by a translation from the reference point to the desired new point. It is common for the center of pressure to be located on the body, but in fluid flows it is possible for the pressure field to exert a moment on the body of such magnitude that the center of pressure is located outside the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gloster TSR
Gloster may refer to: People with the surname * Elizabeth Gloster (born 1949), English judge * J. Gary Gloster (born 1936), American bishop in The Episcopal Church * John Gloster (born before 1998), Australian physiotherapist who works with cricket teams * Tracey Gloster, British biochemist People with the given name * Gloster Richardson (born 1942), American football player * Gloster Udy (19182003), Australian Uniting Church minister and author Places * Actis, California (formerly Highberg, Rummington, and Gloster), an unincorporated community in Kern County * Gloster, Georgia, an unincorporated community * Gloster, Louisiana, an unincorporated community and census-designated place in DeSoto Parish * Gloster, Mississippi, a town in Amite County * Gloster River, in the Marlborough region of New Zealand Other uses * Gloster Aircraft Company, British aircraft manufacturer 191763 ** :Gloster aircraft * Gloster Southern Railroad, in Mississippi and Louisiana * Gloster, an app ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vickers Vildebeest
The Vickers Vildebeest and the similar Vickers Vincent were two very large two- to three-seat single-engined British biplanes designed and built by Vickers and used as light bombers, torpedo bombers and in army cooperation roles. First flown in 1928, it remained in service at the start of the Second World War, with the last Vildebeests flying against Japanese forces over Singapore and Java in 1942. Design and development Vildebeest Designed against Air Ministry Specification 24/25 for the Royal Air Force (RAF), for a land-based torpedo bomber to replace the Hawker Horsley, the prototype Vildebeest, an all-metal fuselage aircraft with single-bay unstaggered fabric-covered wings and tail, was first flown in April 1928 as the Vickers Type 132, powered by a Bristol Jupiter VIII radial engine.Mason 1994, p. 200. After initial evaluation, the Vildebeest was shortlisted for comparison with the Blackburn Beagle and Handley Page Hare. As the Jupiter VIII was prone to vibration, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sopwith Cuckoo
The Sopwith T.1 Cuckoo was a British biplane torpedo bomber used by the Royal Naval Air Service (RNAS), and its successor organization, the Royal Air Force (RAF). The T.1 was the first landplane specifically designed for carrier operations, but it was completed too late for service in the First World War. After the Armistice, the T.1 was named the Cuckoo.Davis 1999, p. 123. Design and development In October 1916, Commodore Murray Sueter, the Air Department's Superintendent of Aircraft Construction, solicited Sopwith for a single-seat aircraft capable of carrying a 1,000 lb torpedo and sufficient fuel to provide an endurance of four hours. The resulting aircraft, designated T.1 by Sopwith,Robertson 1970, p. 125. was a large, three-bay biplane. Because the T.1 was designed to operate from carrier decks, its wings were hinged to fold backwards. The T.1 could take off from a carrier deck in four seconds, but it was not capable of making a carrier landing and no arresting gear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beech Model 17 Staggerwing
The Beechcraft Model 17 Staggerwing is an American biplane with an atypical negative wing stagger (the lower wing is farther forward than the upper wing). It first flew in 1932. Development At the height of the Great Depression, aircraft executive Walter H. Beech and airplane designer Ted A. Wells joined forces to collaborate on a project to produce a large, powerful, and fast cabin biplane built specifically for the business executive. The Beechcraft Model 17, popularly known as the "Staggerwing", was first flown on November 4, 1932. During its heyday, it was used as an executive aircraft, much as the private jet is now, and its primary competition were the Waco Custom Cabin and Waco Standard Cabin series of biplanes. The Model 17's unusual negative stagger wing configuration (the upper wing staggered behind the lower) and unique shape maximized pilot visibility and was intended to reduce interference drag between the wings (although it was later found to have negl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing-Stearman Model 75
The Stearman (Boeing) Model 75 is a biplane formerly used as a military trainer aircraft, of which at least 10,626 were built in the United States during the 1930s and 1940s. Stearman Aircraft became a subsidiary of Boeing in 1934. Widely known as the Stearman, Boeing Stearman, or Kaydet, it served as a primary trainer for the United States Army Air Forces, the United States Navy (as the NS and N2S), and with the Royal Canadian Air Force as the Kaydet throughout World War II. After the conflict was over, thousands of surplus aircraft were sold on the civilian market. In the immediate postwar years, they became popular as crop dusters and sports planes, and for aerobatic and wing walking use in air shows. Design and development The Kaydet was a conventional biplane of rugged construction, with a large, fixed tailwheel undercarriage, and accommodation for the student and instructor in open cockpits in tandem. The radial engine was usually not cowled, although some St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska FAA BE17-b
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., it borders the Canadian province of British Columbia and the Yukon territory to the east; it also shares a maritime border with the Russian Federation's Chukotka Autonomous Okrug to the west, just across the Bering Strait. To the north are the Chukchi and Beaufort Seas of the Arctic Ocean, while the Pacific Ocean lies to the south and southwest. Alaska is by far the largest U.S. state by area, comprising more total area than the next three largest states (Texas, California, and Montana) combined. It represents the seventh-largest subnational division in the world. It is the third-least populous and the most sparsely populated state, but by far the continent's most populous territory located mostly north of the 60th parallel, wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland Tiger Moth
The de Havilland DH.82 Tiger Moth is a 1930s British biplane designed by Geoffrey de Havilland and built by the de Havilland Aircraft Company. It was operated by the Royal Air Force (RAF) and other operators as a primary trainer aircraft. In addition to the type's principal use for ''ab initio'' training, the Second World War had RAF Tiger Moths operating in other capacities, including maritime surveillance and defensive anti-invasion preparations; some aircraft were even outfitted to function as armed light bombers. The Tiger Moth remained in service with the RAF until it was replaced by the de Havilland Chipmunk during the early 1950s. Many of the military surplus aircraft subsequently entered into civilian operation. Many nations have used the Tiger Moth in both military and civilian applications, and it remains in widespread use as a recreational aircraft. It is still occasionally used as a primary training aircraft, particularly for those pilots wanting to gain exper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multiplane (aeronautics)
In aviation, a multiplane is a fixed-wing aircraft-configuration featuring multiple wing planes. The wing planes may be stacked one above another, or one behind another, or both in combination. Types having a small number of planes have specific names and are not usually described as multiplanes: * Biplane - two wings stacked one above the other * Triplane - three wings stacked one above another * Tandem wing - two main planes, one behind the other. The tandem triple or tandem triplet configuration has three lifting surfaces one behind another. While triplane, quadruplane and tandem designs are relatively uncommon, aircraft with more than four sets of wings rarely occur - none have proven successful. Quadruplanes The quadruplane configuration takes the triplane approach a step further, using efficient wings of high aspect ratio and stacking them to allow a compact and light weight design. During the pioneer years of aviation and World War I, a few designers sought these potential ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
