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Vickers Type 253
The Vickers Type 253 was a single-engined two-seat biplane general-purpose military machine built to a 1930 government specification. It won a production contract, but this was transferred to the same company's monoplane equivalent, the Wellesley. Only one Type 253 was built. Development In April 1932 the Air Ministry awarded a contract to Vickers for a single prototype aircraft under Air Ministry specification G.4/31 for a Westland Wapiti replacement, a multi-role aircraft capable of carrying out level bombing, army co-operation, dive bombing, reconnaissance, casualty evacuation and torpedo bombing. Vickers' entrant to this competition was the Type 253, though often known by the specification as the Vickers G.4/31. The Ministry had also ordered prototypes of other designs and some manufacturers had offered private ventures (aircraft built with their own money). The Type 253 was in competition with the Handley Page HP.47. Fairey G.4/31, Westland PV.7, Armstrong Whitworth A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackburn B-7
The Blackburn B-7 was a single-engine two/three-seat biplane built to a United Kingdom, British Air Ministry specification for a general-purpose, multitasking aircraft. It first flew in 1934, but no contracts were issued and only one aircraft was completed. Development List of Air Ministry Specifications#1920-1929, Air Ministry specification G.4/31 called386 for an aircraft to replace the Westland Wapiti and Fairey Gordon. The task list was long: day and night light bomber, light bombing, dive bomber, dive bombing, reconnaissance and army cooperation. The specification attracted interest across the British aircraft industry and eight manufacturers were immediately involved in preparing prototypes, three receiving contracts and the others going forward as private ventures. Blackburn became involved only when the Air Ministry extended the role list to include coastal defence and torpedo bomber, torpedo bombing, Blackburn's speciality. Their contender became known as the ''B-7'' a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeroplane And Armament Experimental Establishment
The Aeroplane and Armament Experimental Establishment (A&AEE) was a research facility for British military aviation from 1918 to 1992. Established at Martlesham Heath, Suffolk, the unit moved in 1939 to Boscombe Down, Wiltshire, where its work continues following privatisation as part of the Qinetiq company. History In 1917, the Experimental Aircraft Flight of the Central Flying School was transferred from Upavon, Wiltshire to a site on the heathland at Martlesham, Suffolk, and on 16 January 1917 Martlesham Heath Airfield was officially opened, as an experimental airfield. The unit was renamed the Aeroplane Experimental Unit, Royal Flying Corps. After the end of World War I the site continued to be used and was, once again, renamed as the Aeroplane and Armament Experimental Establishment of the Royal Air Force. At the outbreak of the Second World War, on 9 September, the A&AEE was removed to RAF Boscombe Down, Wiltshire, owing to the proximity of Martlesham Heath to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brooklands
Brooklands was a motor racing circuit and aerodrome built near Weybridge in Surrey, England, United Kingdom. It opened in 1907 and was the world's first purpose-built 'banked' motor racing circuit as well as one of Britain's first airfields, which also became Britain's largest aircraft manufacturing centre by 1918, producing military aircraft such as the Wellington and civil airliners like the Viscount and VC-10. The circuit hosted its last race in August 1939 and today part of it forms the Brooklands Museum, a major aviation and motoring museum, as well as a venue for vintage car, motorcycle and other transport-related events. History Brooklands motor circuit The Brooklands motor circuit was the brainchild of Hugh Fortescue Locke-King, and was the first purpose-built banked motor race circuit in the world. Following the Motor Car Act 1903, Britain was subject to a blanket speed limit on public roads: at a time when nearly 50% of the world's new cars were produced in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mutt Summers
Captain Joseph "Mutt" Summers, (10 March 1904 – 16 March 1954) was chief test pilot at Vickers-Armstrongs and Supermarine. During his career, Summers flew many first flights on prototype aircraft, (a record of 54 by a test pilot), from the Supermarine Spitfire, to the Vickers Valiant. He also holds the current second place record for 366 general types tested, below Eric "Winkle" Brown's 487. Career Captain Joseph "Mutt" Summers received his nickname "Mutt" during his early days in the RAF from his habit of urinating before takeoff on the small rear wheel or skid of the aircraft he was testing. This led to his being accused of christening his aircraft like a dog marking its territory. He did this because he was aware that during some crashes a full bladder could prove fatal. Paul Brickhill (in ''The Dam Busters'') referred to the two test pilots Joseph Summers and Jeffrey Quill, as "Mutt" and "Jeff", alluding to the characters in the pioneering American comic strip created by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Aircraft Factory
Royal may refer to: People * Royal (name), a list of people with either the surname or given name * A member of a royal family Places United States * Royal, Arkansas, an unincorporated community * Royal, Illinois, a village * Royal, Iowa, a city * Royal, Missouri, an unincorporated community * Royal, Nebraska, a village * Royal, Franklin County, North Carolina, an unincorporated area * Royal, Utah, a ghost town * Royal, West Virginia, an unincorporated community * Royal Gorge, on the Arkansas River in Colorado * Royal Township (other) Elsewhere * Mount Royal, a hill in Montreal, Canada * Royal Canal, Dublin, Ireland * Royal National Park, New South Wales, Australia Arts, entertainment, and media * ''Royal'' (Jesse Royal album), a 2021 reggae album * ''The Royal'', a British medical drama television series * ''The Royal Magazine'', a monthly British literary magazine published between 1898 and 1939 * ''Royal'' (Indian magazine), a men's lifestyle bimonthly * Royal Te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vickers Type 207
The Vickers Type 207 was a single-engined two-seat biplane designed as a shipborne torpedo bomber to an early 1930s specification. Structurally innovative, only one was built. Development The Vickers Type 207 was often known as the Vickers M.1/30, for it was built to Air Ministry specification for a carrier-based torpedo bomber to replace the Blackburn Ripon. The Air Ministry paid Vickers for a single prototype; its competitors were the Blackburn M.1/30 and the Handley Page H.P.46. Like Blackburn, Vickers chose the 825 hp (615 kW) Rolls-Royce H10 engine, later called the Buzzard IIIMS, a liquid cooled V-12 to power their aircraft. The Type 207 was a single-bay biplane, without sweep or stagger and with wings of almost equal span. The upper wing carried Handley Page slots and Frise ailerons; the lower wing alone had dihedral. Both wings used the relatively thick and still novel Raf34 airfoil section; they folded for storage. The rudder was balanced and the b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longerons
In engineering, a longeron and stringer is the load-bearing component of a framework. The term is commonly used in connection with aircraft fuselages and automobile chassis. Longerons are used in conjunction with stringers to form structural frameworks. Aircraft In aircraft fuselage, stringers are attached to formers (also called frames) and run in the longitudinal direction of the aircraft. They are primarily responsible for transferring the aerodynamic loads acting on the skin onto the frames and formers. In the wings or horizontal stabilizer, longerons run spanwise (from wing root to wing tip) and attach between the ribs. The primary function here also is to transfer the bending loads acting on the wings onto the ribs and spar. Sometimes the terms "longeron" and "stringer" are used interchangeably. Historically, though, there is a subtle difference between the two terms. If the longitudinal members in a fuselage are few in number (usually 4 to 8) and run all along the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geodetic Airframe
A geodetic airframe is a type of construction for the airframes of aircraft developed by British aeronautical engineer Barnes Wallis in the 1930s (who sometimes spelt it "geodesic"). Earlier, it was used by Prof. Schütte for the Schütte Lanz Airship SL 1 in 1909. It makes use of a space frame formed from a spirally crossing basket-weave of load-bearing members.Buttler, p.93 The principle is that two geodesic arcs can be drawn to intersect on a curving surface (the fuselage) in a manner that the torsional load on each cancels out that on the other.Buttler, p.94 Early examples The "diagonal rider" structural element was used by Joshua Humphreys in the first US Navy sail frigates in 1794. Diagonal riders are viewable in the interior hull structure of the preserved USS ''Constitution'' on display in Boston Harbor. The structure was a pioneering example of placing "non-orthogonal" structural components within an otherwise conventional structure for its time. The "diagonal rid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leading Edge Slats
Slats are aerodynamic surfaces on the leading edge of the wing of a fixed-wing aircraft which, when deployed, allow the wing to operate at a higher angle of attack. A higher coefficient of lift is produced as a result of angle of attack and speed, so by deploying slats an aircraft can fly at slower speeds, or take off and land in shorter distances. They are used during takeoff and landing or while performing low speed maneuvers which may take the aircraft close to a stall, they are retracted in normal flight to minimize drag. Slats are one high-lift device used on high speed turbojet aircraft, trailing edge flap systems running along the trailing edge of the wing are common on all aircraft. Types Types include: ;Automatic: The spring-loaded slat lies flush with the wing leading edge, held in place by the force of the air acting on them. As the aircraft slows down, the aerodynamic force is reduced and the springs extend the slats. Sometimes referred to as Handley-Page slat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dihedral (aircraft)
In aeronautics, dihedral is the angle between the left and right wings (or tail surfaces) of an aircraft. "Dihedral" is also used to describe the effect of sideslip on the rolling of the aircraft. Dihedral angle is the upward angle from horizontal of the wings or tailplane of a fixed-wing aircraft. "Anhedral angle" is the name given to negative dihedral angle, that is, when there is a ''downward'' angle from horizontal of the wings or tailplane of a fixed-wing aircraft. Dihedral angle has a strong influence on dihedral effect, which is named after it. Dihedral effect is the amount of roll moment produced in proportion to the amount of sideslip. Dihedral effect is a critical factor in the stability of an aircraft about the roll axis (the spiral mode). It is also pertinent to the nature of an aircraft's Dutch roll oscillation and to maneuverability about the roll axis. Longitudinal dihedral is a comparatively obscure term related to the pitch axis of an airplane. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Townend Ring
A Townend ring is a narrow- chord cowling ring fitted around the cylinders of an aircraft radial engine to reduce drag and improve cooling. Development The Townend ring was the invention of Dr. Hubert Townend of the British National Physical Laboratory in 1929. Patents were supported by Boulton & Paul Ltd in 1929. In the United States it was often called a "drag ring". It caused a reduction in the drag of radial engines and was widely used in high-speed designs of 1930–1935, before the long-chord NACA cowling came into general use. Despite suggestions of it exploiting the Meredith effect, low airspeeds, low temperature differences and small mass flows make that unlikely, particularly when combined with the lack of flow control as the air exits the cowling.Becker, J.; ''The high-speed frontier: Case histories of four NACA programs, 1920–1950'', SP-445, NASA (1980)Chapter 5: High-speed Cowlings, Air Inlets and Outlets, and Internal-Flow Systems: The ramjet investigati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
