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Hawker Nimrod
The Hawker Nimrod is a British carrier-based single-engine, single-seat biplane fighter aircraft built in the early 1930s by Hawker Aircraft. Design and development In 1926 the Air Ministry specification N.21/26 was intended to produce a successor to the Fairey Flycatcher, then in its fourth year of Naval service. By the time it was replaced by the Nimrod in 1932, the Flycatcher had become so obsolete in terms of its speed that RAF officers who flew it often joked that a sprightly fly might actually give the aircraft a run for its money. None of the aircraft designed to this specification were selected for production after trials in 1928, but the radial-engined Hawker Hoopoe, not actually designed to N.21/26, was considered promising enough to be further developed. Despite the Navy's traditional preference for radial engines, Hawker's designer Sydney Camm was convinced by his experience with the landplane Hawker Fury that the future for shipborne aircraft also lay with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sydney Camm
Sir Sydney Camm, CBE, FRAeS (5 August 189312 March 1966) was an English aeronautical engineer who contributed to many Hawker aircraft designs, from the biplanes of the 1920s to jet fighters. One particularly notable aircraft he designed was the Hawker Hurricane fighter. Early years Sydney Camm was born at 10 Alma Road in Windsor, Berkshire, the eldest child of the twelve children of Frederick Camm, a carpenter/joiner and Mary Smith. The Camm family lived near Windsor & Eton Central railway station. His brother Frederick James Camm became a technical author, and created the ''Practical Wireless'' magazine. In 1901 he began attending the Royal Free School on Bachelors Acre in Windsor (The Royal Free school became the Royal Free Middle School with the secondary school becoming the Princess Margaret Royal Free School on Bourne Avenue). In 1906 he was granted a Foundation Scholarship. In 1908 Camm left school to become an apprentice carpenter. Camm developed an interest in aerona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warren Girder
A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements, usually forming triangular units. The connected elements (typically straight) may be stressed from tension, compression, or sometimes both in response to dynamic loads. The basic types of truss bridges shown in this article have simple designs which could be easily analyzed by 19th and early 20th-century engineers. A truss bridge is economical to construct because it uses materials efficiently. Design The nature of a truss allows the analysis of its structure using a few assumptions and the application of Newton's laws of motion according to the branch of physics known as statics. For purposes of analysis, trusses are assumed to be pin jointed where the straight components meet, meaning that taken alone, every joint on the structure is functionally considered to be a flexible joint as opposed to a rigid joint with strength to maintain its own shape, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spats (aviation)
An aircraft fairing is a structure whose primary function is to produce a smooth outline and reduce drag.Crane, Dale: ''Dictionary of Aeronautical Terms, Third Edition'', page 206. Aviation Supplies & Academics Inc, Newcastle Washington, 1997. These structures are covers for gaps and spaces between parts of an aircraft to reduce form drag and interference drag, and to improve appearance.Bingelis, Tony: ''The Sportplane Builder'', pages 261-265. Experimental Aircraft Association Aviation Foundation, 1979. Types On aircraft, fairings are commonly found on: ; Belly fairing : Also called a "ventral fairing", it is located on the underside of the fuselage between the main wings. It can also cover additional cargo storage or fuel tanks. ; Cockpit fairing : Also called a "cockpit pod", it protects the crew on ultralight trikes. Commonly made from fiberglass, it may also incorporate a windshield.Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page C-17. Cybair ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
803 Naval Air Squadron
803 Naval Air Squadron was a Royal Navy Fleet Air Arm squadron. History Interwar 803 NAS was formed on 3 April 1933 by promoting No 409 (Fleet Fighter) Flight to the status of a squadron, with nine Ospreys. In the same month it embarked on for the Far East, where it remained (transferring to in January 1935) until disbandment on 1 October 1937. 803 Squadron was re-formed on 21 November 1938 at RNAS Worthy Down out of 'B' Flight of No 800 Squadron. Equipped with six Ospreys and three Nimrods, then (from December 1938) six Skuas and three Nimrods, the squadron embarked in in April 1938 as an RAF squadron but was transferred to Admiralty control on 24 May 1939. World War II At the outbreak of World War II, the Skuas and Rocs which formed 803 Squadron were embarked on . Operating out of Scapa Flow, the squadron carried out anti-submarine patrols in the Northwestern Approaches (losing two Skuas in an attack on on 14 September 1939 and defending ) and regular patrols off No ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
802 Naval Air Squadron
802 Naval Air Squadron (802 NAS) was a Naval Air Squadron of the Royal Navy's Fleet Air Arm. Early history 802 Squadron was formed on 3 April 1933 aboard by the merger of two independent Royal Air Force naval units, 408 (Fleet Fighter) Flight and 409 (Fleet Fighter) Flight. By 1939, 802 Squadron was operating from (Dekhelia) in Egypt where, like all Fleet Air Arm units, it was taken over by the Admiralty on 24 May 1939. Aircraft * Nimrod I S1579 571 * Osprey I K2783 * Osprey III K3643 549 * Osprey III Seaplane K3644 590 Second World War In April 1940 802 Squadron was serving aboard ''Glorious'' with twelve Gloster Sea Gladiators when the ship was recalled to participate in the defence of Norway. The squadron ceased to exist after ''Glorious'' was sunk by the German battleships '' Scharnhorst'' and '' Gneisenau'' on 8 June 1940 during the defence of Norway. Reformed from part of 804 Squadron on 21 November 1940 with Martlet Is, the squadron sub-flights embarked on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
801 Naval Air Squadron
801 Naval Air Squadron (NAS) was a Fleet Air Arm squadron of the Royal Navy formed in 1933 which fought in World War II, the Korean War and the Falklands War. Fleet Air Arm of the Royal Air Force The squadron was formed on 3 April 1933 as part of the Fleet Air Arm, with the promotion of No. 401 Flight to squadron status. The squadron was equipped with the Fairey Flycatcher and Hawker Nimrod aboard . The Flycatchers were replaced in 1934 by the Hawker Osprey and the Nimrods were retired in 1936. The squadron was re-equipped with the Blackburn Skua and Gloster Gladiator in 1939 just before the squadron was transferred to the Admiralty. Second World War In January 1940, 801 NAS was based at RNAS Donibristle with the Blackburn Skua, playing a key role in the early part of the war with operations in Norway while deploying from the aircraft carrier . In September, 801 Squadron embarked on for raids on the northerly parts of the Norwegian coast. Following an attack on Trondheim on 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arrestor Hook
A tailhook, arresting hook, or arrester hook is a device attached to the empennage (rear) of some military fixed-wing aircraft. The hook is used to achieve rapid deceleration during routine landings aboard aircraft carrier flight decks at sea, or during emergency landings or aborted takeoffs at properly equipped airports. The tailhook was first demonstrated at sea on 18 January 1911 by the aviator Eugene Ely, having successfully landed aboard the armored cruiser USS ''Pennsylvania'' with the aid of the device. It was not until the early 1920s that a practical system, paired with deck-mounted arresting gear, was devised and put into use. During the 1930s, numerous vessels were thus equipped, permitting the use of increasingly heavy combat aircraft at sea during the Second World War. Following the introduction of jet-powered aircraft during the 1950s, arrestor technology was further advanced to permit aircraft operating at greater speeds and weights to land aboard aircraft carr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Martlesham Heath
Royal Air Force Martlesham Heath or more simply RAF Martlesham Heath is a former Royal Air Force station located southwest of Woodbridge, Suffolk, England. It was active between 1917 and 1963, and played an important role in the development of Airborne Interception radar. History RFC/RAF prewar use Martlesham Heath was first used as a Royal Flying Corps airfield during the First World War. In 1917 it became home to the Aeroplane Experimental Unit, RFC which moved from Upavon with the site named as the Aeroplane Experimental Station which became the Aeroplane Experimental Establishment (Home) in 1920 which became the Aeroplane and Armament Experimental Establishment (A&AEE) in 1924. The A&AEE carried the evaluation and testing of many of the aircraft types and much of the armament and other equipment that would later be used during the Second World War. No. 22 Squadron RAF and No. 15 Squadron RAF were present during the 1920s. No. 64 arrived in the 1930s. RAF Fighter Command ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buenos Aires
Buenos Aires ( or ; ), officially the Autonomous City of Buenos Aires ( es, link=no, Ciudad Autónoma de Buenos Aires), is the capital and primate city of Argentina. The city is located on the western shore of the Río de la Plata, on South America's southeastern coast. "Buenos Aires" can be translated as "fair winds" or "good airs", but the former was the meaning intended by the founders in the 16th century, by the use of the original name "Real de Nuestra Señora Santa María del Buen Ayre", named after the Madonna of Bonaria in Sardinia, Italy. Buenos Aires is classified as an alpha global city, according to the Globalization and World Cities Research Network (GaWC) 2020 ranking. The city of Buenos Aires is neither part of Buenos Aires Province nor the Province's capital; rather, it is an autonomous district. In 1880, after decades of political infighting, Buenos Aires was federalized and removed from Buenos Aires Province. The city limits were enlarged to include t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS Eagle (1918)
HMS ''Eagle'' was an early aircraft carrier of the Royal Navy. Ordered by Chile during the South American dreadnought race as the ''Almirante Cochrane'', she was laid down before World War I. In early 1918 she was purchased by Britain for conversion to an aircraft carrier; this work was finished in 1924. Her completion was delayed by labour troubles and the possibility that she might be repurchased by Chile for reconversion into a battleship, as well as the need for comparative trials to determine the optimum layout for aircraft carriers. The ship was initially assigned to the Mediterranean Fleet and then later to the China Station, spending very little time in home waters other than for periodic refits. ''Eagle'' spent the first nine months of World War II in the Indian Ocean searching for German commerce raiders. During the early part of the war, the Fleet Air Arm was desperately short of fighters and ''Eagle'' was equipped solely with Fairey Swordfish torpedo bombers until l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudder
A rudder is a primary control surface used to steer a ship, boat, submarine, hovercraft, aircraft, or other vehicle that moves through a fluid medium (generally aircraft, air or watercraft, water). On an aircraft the rudder is used primarily to counter adverse yaw and p-factor and is not the primary control used to turn the airplane. A rudder operates by redirecting the fluid past the hull (watercraft), hull or fuselage, thus imparting a turning or yaw (rotation), yawing motion to the craft. In basic form, a rudder is a flat plane or sheet of material attached with hinges to the craft's stern, tail, or after end. Often rudders are shaped so as to minimize Drag (physics), hydrodynamic or aerodynamic drag. On simple watercraft, a tiller—essentially, a stick or pole acting as a lever arm—may be attached to the top of the rudder to allow it to be turned by a helmsman. In larger vessels, cables, pushrods, or hydraulics may be used to link rudders to steering wheels. In typical air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balanced Rudder
Balanced rudders are used by both ships and aircraft. Both may indicate a portion of the rudder surface ahead of the hinge, placed to lower the control loads needed to turn the rudder. For aircraft the method can also be applied to elevators and ailerons; all three aircraft control surfaces may also be mass balanced, chiefly to avoid aerodynamic flutter. Ships A balanced rudder is a rudder in which the axis of rotation of the rudder is behind its front edge. This means that when the rudder is turned, the pressure of water caused by the ship's movement through the water acts upon the forward part to exert a force which increases the angle of deflection, so counteracting the pressure acting on the after part, which acts to reduce the angle of deflection. A degree of semi-balance is normal to avoid rudder instability i.e. the area in front of the pivot is less than that behind. This allows the rudder to be moved with less effort than is necessary with an unbalanced rudder. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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