A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer , used a biplane wing arrangement, as did many aircraft in the early years of aviation . While a biplane wing structure has a structural advantage over a monoplane , it produces more drag than a monoplane wing. Improved structural techniques, better materials and higher speeds made the biplane configuration obsolete for most purposes by the late 1930s.
84-449: The Hawker Horsley was a British single-engined biplane bomber of the 1920s. It was the last all-wooden aircraft built by Hawker Aircraft , and served as a medium day bomber and torpedo bomber with Britain's Royal Air Force between 1926 and 1935, as well as the navies of Greece and Denmark. The Horsley (named after Sir Thomas Sopwith 's home of Horsley Towers ) was originally designed to meet Air Ministry Specification 26/23 for
168-411: A Fifer . In older documents the county was very occasionally known by the anglicisation Fifeshire . Fife is Scotland's 3rd largest local authority area by population . It had a resident population of 371,340 in 2022, over a third of whom live in the three principal settlements, Dunfermline , Kirkcaldy and Glenrothes . On the northeast coast of Fife lies the historic town of St Andrews , home to
252-537: A sheriff . Kinross and Clackmannan were each given their own sheriffs, whilst the rest of the Fife and Fothriff area was placed under the authority of the Sheriff of Fife . Over time, Scotland's shires became more significant than the old provinces, with more administrative functions being given to the sheriffs. The larger earldom of Fife, including Kinross and Clackmannan, was therefore gradually eclipsed in importance by
336-462: A 2,150 lb (980 kg) torpedo . The Horsley's ability to cope with the increased loads required to meet these new specifications led to the design being favoured by the RAF, with an initial order of forty aircraft, consisting of ten wooden Mk Is and 30 Mk IIs of mixed metal and wood construction, being placed. The Horsley was a large single-engined two-bay biplane . It had a crew of two, comprising
420-533: A 650 hp (480 kW) engine, and was delivered to the Aeroplane and Armament Experimental Establishment at Martlesham Heath on 4 May 1925. Meanwhile, the Air Ministry revised its requirements, producing Specification 23/25 which increased the required payload from one to two 550 lb (250 kg) bombs. At the same time, it also issued Specification 24/25 for a torpedo bomber, required to carry
504-653: A W shape cabane, however as it does not connect the wings to each other, it does not add to the number of bays. Large transport and bombing biplanes often needed still more bays to provide sufficient strength. These are often referred to as multi-bay biplanes . A small number of biplanes, such as the Zeppelin-Lindau D.I have no interplane struts and are referred to as being strutless . Because most biplanes do not have cantilever structures, they require rigging wires to maintain their rigidity. Early aircraft used simple wire (either braided or plain), however during
588-412: A biplane aircraft, two wings are placed one above the other. Each provides part of the lift, although they are not able to produce twice as much lift as a single wing of similar size and shape because the upper and the lower are working on nearly the same portion of the atmosphere and thus interfere with each other's behaviour. In a biplane configuration with no stagger from the upper wing to the lower wing,
672-553: A day bomber powered by a single Rolls-Royce Condor engine. While the specification called for any production aircraft to be of metal construction, Hawker proposed to build the prototype of wooden construction, gradually switching to a metal structure during production. This was acceptable to the Air Ministry , and an order for a single prototype was placed. The first prototype was first flown at Brooklands in March 1925, powered by
756-624: A documented jet-kill, as one Lockheed F-94 Starfire was lost while slowing down to 161 km/h (100 mph) – below its stall speed – during an intercept in order to engage the low flying Po-2. Later biplane trainers included the de Havilland Tiger Moth in the Royal Air Force (RAF), Royal Canadian Air Force (RCAF) and others and the Stampe SV.4 , which saw service postwar in the French and Belgian Air Forces. The Stearman PT-13
840-513: A faster and more comfortable successor to the Dragon. As the available engine power and speed increased, the drag penalty of external bracing increasingly limited aircraft performance. To fly faster, it would be necessary to reduce external bracing to create an aerodynamically clean design; however, early cantilever designs were either too weak or too heavy. The 1917 Junkers J.I sesquiplane utilized corrugated aluminum for all flying surfaces, with
924-534: A feature of the Fife coast. The distinctive red clay pan tiles seen on many old buildings in Fife arrived as ballast on trading boats and replaced the previously thatched roofs. In 1598, King James VI employed a group of 11 men from Fife, who became known as the Fife adventurers , to colonise the Isle of Lewis in an attempt to begin the "civilisation" and de-gaelicisation of the region. This endeavour lasted until 1609 when
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#17327802640811008-422: A given wing area. However, interference between the airflow over each wing increases drag substantially, and biplanes generally need extensive bracing, which causes additional drag. Biplanes are distinguished from tandem wing arrangements, where the wings are placed forward and aft, instead of above and below. The term is also occasionally used in biology , to describe the wings of some flying animals . In
1092-760: A high number of modern Silicon Glen companies to the region. Fife Council and Fife Constabulary also centre their operations in Glenrothes. There are numerous notable historical buildings in Fife, some of which are managed by the National Trust for Scotland or Historic Scotland . They include Dunfermline Abbey (the last resting place of Scottish royalty), the palace in Culross, Ravenscraig Castle in Kirkcaldy, Dysart Harbour area, Balgonie Castle near Coaltown of Balgonie, Falkland Palace (hunting palace of
1176-507: A minimum of struts; however, it was relatively easy to damage the thin metal skin and required careful handling by ground crews. The 1918 Zeppelin-Lindau D.I fighter was an all-metal stressed-skin monocoque fully cantilevered biplane, but its arrival had come too late to see combat use in the conflict. By the 1930s, biplanes had reached their performance limits, and monoplanes become increasingly predominant, particularly in continental Europe where monoplanes had been increasingly common from
1260-445: A pilot and a gunner/bomb-aimer/radio operator, who had a .303 in (7.7 mm) Lewis gun mounted in a Scarff ring in the rear cockpit and a prone position for bomb aiming. The rear cockpit was also fitted with dual controls. The payload included two 550 lb (250 kg) bombs, one 1,500 lb (680 kg) bomb or a torpedo weighing 2,800 lb (1,300 kg). The structure was originally all wood, but before production
1344-576: A rebellion in Burma as well as maintaining its torpedo bombing skills. 100 Squadron converted to the torpedo bombing role in 1930 to fill the gap in home-based defences. The Horsley was chosen to attempt a non-stop flight to India, with a specially modified aircraft, carrying much more fuel and taking off at a weight of over 14,000 lb (6,350 kg) took off from RAF Cranwell on 20 May 1927, flown by Flight Lieutenants Roderick Carr and L.E.M Gillman. It ran out of fuel en route , however, ditching in
1428-463: A small degree, but more often was used to improve access to the cockpit. Many biplanes have staggered wings. Common examples include the de Havilland Tiger Moth , Bücker Bü 131 Jungmann and Travel Air 2000 . Alternatively, the lower wing can instead be moved ahead of the upper wing, giving negative stagger, and similar benefits. This is usually done in a given design for structural reasons, or to improve visibility. Examples of negative stagger include
1512-473: A somewhat unusual sesquiplane arrangement, possessing a more substantial lower wing with two spars that eliminated the flutter problems encountered by single-spar sesquiplanes. The stacking of wing planes was suggested by Sir George Cayley in 1843. Hiram Maxim adopted the idea for his steam-powered test rig, which lifted off but was held down by safety rails, in 1894. Otto Lilienthal designed and flew two different biplane hang gliders in 1895, though he
1596-446: A two-tier structure of upper-tier regions and lower-tier districts . Fife region was created covering the same area as the county, divided into three districts : Dunfermline , Kirkcaldy and North-East Fife . In 1996 the district councils were abolished and Fife Regional Council became a unitary authority known as Fife Council. Fife is one of the six local authorities in the city region of Edinburgh and southeast Scotland. There
1680-560: Is better known for his monoplanes. By 1896 a group of young men in the United States, led by Octave Chanute , were flying hang gliders including biplanes and concluded that the externally braced biplane offered better prospects for powered flight than the monoplane. In 1903, the Wright Flyer biplane became the first successful powered aeroplane. Throughout the pioneer years, both biplanes and monoplanes were common, but by
1764-404: Is no longer an island following land reclamation work. Cupar took over as county town from Crail in the early 13th century. Glenrothes is now the administrative centre, after the decision to locate the headquarters of the newly established Fife Regional Council there in 1975. Fife's three major towns are Kirkcaldy , Dunfermline (awarded city status in 2022) and Glenrothes. According to
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#17327802640811848-576: Is recorded as Fib in A.D. 1150 and Fif in 1165. It was often associated with Fothriff . The hill-fort of Clatchard Craig , near Newburgh , was occupied as an important Pictish stronghold between the sixth and eighth centuries AD. Fife was an important royal and political centre from the reign of King Malcolm III onwards, as the leaders of Scotland gradually moved southwards away from their ancient strongholds around Scone. Malcolm had his principal home in Dunfermline and his wife Margaret
1932-560: Is situated between the Firth of Tay and the Firth of Forth , with inland boundaries with Perth and Kinross (i.e., the historic counties of Perthshire and Kinross-shire ) and Clackmannanshire . By custom it is widely held to have been one of the major Pictish kingdoms , known as Fib , and is still commonly known as the Kingdom of Fife within Scotland. A person from Fife is known as
2016-725: The 2015 general election , all four of the MPs constituencies were held by the Scottish National Party . In the 2017 general election , Kirkcaldy and Cowdenbeath was regained by Labour . At the same election, the seat of North East Fife became the closest seat in the country with the SNP holding a majority of 2 over the Liberal Democrats . Three of the Scottish Parliament constituencies are held by
2100-536: The Bristol M.1 , that caused even those with relatively high performance attributes to be overlooked in favour of 'orthodox' biplanes, and there was an allegedly widespread belief held at that time that monoplane aircraft were inherently unsafe during combat. Between the years of 1914 and 1925, a clear majority of new aircraft introduced were biplanes; however, during the latter years of the First World War,
2184-653: The First World War -era Fokker D.VII fighter and the Second World War de Havilland Tiger Moth basic trainer. The larger two-seat Curtiss JN-4 Jenny is a two bay biplane , the extra bay being necessary as overlong bays are prone to flexing and can fail. The SPAD S.XIII fighter, while appearing to be a two bay biplane, has only one bay, but has the midpoints of the rigging braced with additional struts; however, these are not structurally contiguous from top to bottom wing. The Sopwith 1½ Strutter has
2268-477: The Forth and Tay rail bridges linked Fife with Dundee and Edinburgh and allowed the rapid transport of goods. Modern ports were constructed at Methil , Burntisland and Rosyth . Kirkcaldy became the world centre for the production of linoleum . Postwar Fife saw the development of Scotland's second new town , Glenrothes . Originally to provide housing for miners at a new coal mine, the town eventually attracted
2352-703: The Grumman Ag Cat are available in upgraded versions with turboprop engines. The two most produced biplane designs were the 1913 British Avro 504 of which 11,303 were built, and the 1928 Soviet Polikarpov Po-2 of which over 20,000 were built, with the Po-2 being the direct replacement for the Soviet copy of the Avro 504. Both were widely used as trainers. The Antonov An-2 was very successful too, with more than 18,000 built. Although most ultralights are monoplanes,
2436-617: The Lite Flyer Biplane, the Sherwood Ranger , and the Murphy Renegade . The feathered dinosaur Microraptor gui glided, and perhaps even flew, on four wings, which may have been configured in a staggered sesquiplane arrangement. This was made possible by the presence of flight feathers on both forelimbs and hindlimbs, with the feathers on the forelimbs opening to a greater span. It has been suggested that
2520-635: The Lomond Hills which rise above rolling farmland, and Largo Law , a volcanic plug in the east. At 522 metres (1,713 ft), the West Lomond is the highest point in Fife. The coast has fine but small harbours, from the industrial docks in Burntisland and Rosyth to the fishing villages of the East Neuk such as Anstruther and Pittenweem . The large area of flat land to the north of
2604-729: The Napier Lion , Rolls-Royce Buzzard , Rolls-Royce Eagle , the Armstrong Siddeley Leopard radial engine, the Junkers Jumo diesel engine and early versions of the Rolls-Royce Merlin . The first aircraft were delivered to No 100 (Bomber) Squadron of the Royal Air Force at Donibristle , Fife, in September 1927, with two more squadrons, No. 15 and No. 11 Squadrons receiving Horsleys by
Hawker Horsley - Misplaced Pages Continue
2688-556: The Nieuport-Delage NiD 42 / 52 / 62 series, Fokker C.Vd & e, and Potez 25 , all serving across a large number of air forces. In the general aviation sector, aircraft such as the Waco Custom Cabin series proved to be relatively popular. The Saro Windhover was a sesquiplane with the upper wing smaller than the lower, which was a much rarer configuration than the reverse. The Pfalz D.III also featured
2772-833: The Ochil Hills . Almost all road traffic into and out of Fife has to pass over one of four bridges, south on the Forth Road Bridge (public transport and cyclists only) and Queensferry Crossing , west on the Kincardine Bridge or north-east via the Tay Road Bridge , the exception being traffic headed north on the M90 . Tolls were abolished on the Tay Road Bridge and Forth Road Bridge on 11 February 2008. There are extinct volcanic features, such as
2856-519: The Persian Gulf near Bandar Abbas , Iran . Despite this it had covered a distance of 3,420 mi (5,500 km), which was sufficient to set a new world distance record , but was beaten in turn within a few hours by Charles Lindbergh , whose solo Atlantic flight between New York and Paris in the Spirit of St. Louis covered 3,590 mi (5,780 km)). The Horsleys remained in service in
2940-577: The Poppleton manuscript mention the division of the Pictish realm or Albany into seven sub-kingdoms, one being Fife. The earliest known reference to the common epithet The Kingdom of Fife dates from only 1678, in a proposition that the term derives from the quasi-regal privileges of the Earl of Fife . The notion of a kingdom may derive from a misinterpretation of an extract from Wyntoun . The name
3024-605: The Scottish National Party : Cowdenbeath , Dunfermline and Mid Fife and Glenrothes . One is held by the Scottish Liberal Democrats : North East Fife . Fife Council 's administrative headquarters and Police Scotland 's P Division (formerly Fife Constabulary ) are based in Glenrothes . The Council meetings take place in Fife House in the town centre. The west wing of the building was built by
3108-501: The Sopwith Dolphin , Breguet 14 and Beechcraft Staggerwing . However, positive (forward) stagger is much more common. The space enclosed by a set of interplane struts is called a bay (much as the architectural form is used), hence a biplane or triplane with one set of such struts connecting the wings on each side of the aircraft is a single-bay biplane . This provided sufficient strength for smaller aircraft such as
3192-556: The University of St Andrews —the most ancient university of Scotland and one of the oldest universities in the world —and the Old Course at St Andrews , considered the world's oldest golf course . Fife, bounded to the north by the Firth of Tay and to the south by the Firth of Forth , is a natural peninsula whose political boundaries have changed little over the ages. The Pictish king list and De Situ Albanie documents of
3276-419: The lift coefficient is reduced by 10 to 15 percent compared to that of a monoplane using the same airfoil and aspect ratio . The lower wing is usually attached to the fuselage , while the upper wing is raised above the fuselage with an arrangement of cabane struts , although other arrangements have been used. Either or both of the main wings can support ailerons , while flaps are more usually positioned on
3360-514: The CR.42 was able to achieve success in the defensive night fighter role against RAF bombers that were striking industrial targets throughout northern Italy. The British Fleet Air Arm operated the Fairey Swordfish torpedo bomber from its aircraft carriers, and used the type in the anti-submarine warfare role until the end of the conflict, largely due to their ability to operate from
3444-528: The Caribou , performed the first non-stop flight between the Canadian mainland and Britain in 30 hours 55 minutes, although the intended target for this long distance flight had originally been Baghdad , Iraq . Despite its relative success, British production of the Dragon was quickly ended when in favour of the more powerful and elegant de Havilland Dragon Rapide , which had been specifically designed to be
Hawker Horsley - Misplaced Pages Continue
3528-664: The Danish Government. They had a slightly different fuselage, accommodating a third crew member. The Danes also purchased a licence to build a further ten aircraft at the Danish Naval Workshops (Orlogsvaerftet), but these were not built owing to a shortage of funds. Production aircraft were powered by the Condor IIIA, but the Horsley was also much used as a flying testbed for other engines, including
3612-515: The First World War, the British Royal Aircraft Factory developed airfoil section wire named RAFwire in an effort to both increase the strength and reduce the drag. Four types of wires are used in the biplane wing structure. Drag wires inside the wings prevent the wings from being folded back against the fuselage, running inside a wing bay from the forward inboard corner to the rear outboard corner. Anti-drag wires prevent
3696-577: The French Nieuport 17 and German Albatros D.III , offered lower drag than a conventional biplane while being stronger than a monoplane. During the Interwar period , numerous biplane airliners were introduced. The British de Havilland Dragon was a particularly successful aircraft, using straightforward design to could carry six passengers on busy routes, such as London-Paris services. During early August 1934, one such aircraft, named Trail of
3780-661: The Germans had been experimenting with a new generation of monoplanes, such as the Fokker D.VIII , that might have ended the biplane's advantages earlier had the conflict not ended when it had. The French were also introducing the Morane-Saulnier AI , a strut-braced parasol monoplane , although the type was quickly relegated to the advanced trainer role following the resolution of structural issues. Sesquiplane types, which were biplanes with abbreviated lower wings such as
3864-546: The Glenrothes Development Corporation (GDC) as their offices in 1969, which was later used as the headquarters of Fife Regional Council from shortly after its creation in 1975. Fife is a peninsula in eastern Scotland bordered on the north by the Firth of Tay , on the east by the North Sea and by the Firth of Forth to the south. The route to the west is partially blocked by the mass of
3948-682: The Lomond Hills, through which the River Eden flows, is known as the Howe of Fife . North of the Lomond Hills can be found villages and small towns in a primarily agricultural landscape. The areas in the south and west of Fife, including the towns of Dunfermline , Glenrothes , Kirkcaldy and the Levenmouth region are lightly industrial and more densely populated. The only areas which could claim to be heavily industrial are Rosyth , around
4032-544: The Scottish Kings), Kellie Castle near Pittenweem, Hill of Tarvit (a historical house), St. Andrews Castle, St. Andrews Cathedral and St. Rule's Tower . Fife was one of the ancient provinces of Scotland , under the authority of the Mormaer or Earl of Fife . The early province of Fife appears to have covered only that part of the later county lying east of a line from Newburgh to Scoonie . The western part of
4116-407: The biplane naturally has a deep structure and is therefore easier to make both light and strong. Rigging wires on non-cantilevered monoplanes are at a much sharper angle, thus providing less tension to ensure stiffness of the outer wing. On a biplane, since the angles are closer to the ideal of being in direct line with the forces being opposed, the overall structure can then be made stiffer. Because of
4200-616: The colonists, having been opposed by the native population, were bought out by Kenneth Mackenzie , the clan chief of the Mackenzies . Fife became a centre of heavy industry in the 19th century. Coal had been mined in the area since at least the 12th century, but the number of pits increased ten-fold as demand for coal grew in the Victorian period. Previously rural villages such as Cowdenbeath rapidly swelled into towns as thousands moved to Fife to find work in its mines. The opening of
4284-608: The competition aerobatics role and format for such a biplane well-defined by the mid-1930s by the Udet U 12 Flamingo and Waco Taperwing . The Pitts Special dominated aerobatics for many years after World War II and is still in production. The vast majority of biplane designs have been fitted with reciprocating engines . Exceptions include the Antonov An-3 and WSK-Mielec M-15 Belphegor , fitted with turboprop and turbofan engines respectively. Some older biplane designs, such as
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#17327802640814368-619: The day-bombing role until 1934, with 504 Squadron 's Horsleys being replaced by Westland Wallaces at RAF Hucknall in March 1934. No 36 Squadron at Singapore retained the Horsely in the Torpedo bomber role until July 1935. The last Horsley, a Merlin-powered testbed flew its final flight at RAE Farnborough on 7 March 1938. In total, 124 Horsleys were built, including six aircraft for the Hellenic Naval Air Service and
4452-470: The drag from the number of struts used. The structural forces acting on the spars of a biplane wing tend to be lower as they are divided between four spars rather than two, so the wing can use less material to obtain the same overall strength and is therefore lighter. A given area of wing also tends to be shorter, reducing bending moments on the spars, which then allow them to be more lightly built as well. The biplane does however need extra struts to maintain
4536-549: The end of World War I . At the start of World War II , several air forces still had biplane combat aircraft in front line service but they were no longer competitive, and most were used in niche roles, such as training or shipboard operation, until shortly after the end of the war. The British Gloster Gladiator biplane, the Italian Fiat CR.42 Falco and Soviet I-153 sesquiplane fighters were all still operational after 1939. According to aviation author Gianni Cattaneo,
4620-430: The end of the year, replacing the Fairey Fawn . The Horsleys proved greatly superior to the Fawn, carrying up to three times the bomb load over greater ranges and at higher speeds, while also being agile for their size, and were popular with their pilots. In October 1928, No. 36 Squadron formed at Donibristle , Fife , Scotland, as a torpedo-bomber squadron. It was transferred to Singapore in 1930, helping to suppress
4704-465: The functions of the commissioners (which were eventually abolished in 1930). The two burghs of Dunfermline and Kirkcaldy were deemed capable of managing their own affairs and so were excluded from the administrative area of the county council. The 1889 act also led to a review of boundaries, with several exclaves being transferred to a county they actually bordered, and parishes which straddled more than one county being adjusted such that each parish
4788-416: The gap between the wings, which add both weight and drag. The low power supplied by the engines available in the first years of aviation limited aeroplanes to fairly low speeds. This required an even lower stalling speed, which in turn required a low wing loading , combining both large wing area with light weight. Obtaining a large enough wing area without the wings being long, and thus dangerously flexible
4872-478: The highest concentration of second homes and holiday lets in Scotland. The fishing industry , on which the coastal East Neuk settlements were built, has declined in recent years with the main fishing fleet now operating from Pittenweem and the harbour in Anstruther being used as a marina for pleasure craft. There are several islands located off the coast of Fife, such as the Isle of May , Inchkeith and Inchcolm . The former Preston Island south of Valleyfield
4956-399: The hind limbs could not have opened out sideways but in flight would have hung below and slightly behind the fore limbs. Fife Fife ( / f aɪ f / FYFE , Scottish English : [fɐi̯f] ; Scottish Gaelic : Fìobha [ˈfiːvə] ; Scots : Fife ) is a council area , historic county , registration county and lieutenancy area of Scotland . It
5040-435: The later county was in the province of Fothriff , which also covered areas that would later become Kinross-shire and part of Clackmannanshire , including the town of Clackmannan . By the early thirteenth century Fothriff had been joined to the earldom of Fife. Sometime between the reign of David I (reigned 1124–1153) and the mid-thirteenth century, this part of Scotland was divided into shires , being areas administered by
5124-424: The low speeds and simple construction involved have inspired a small number of biplane ultralights, such as Larry Mauro's Easy Riser (1975–). Mauro also made a version powered with solar cells driving an electric motor called the Solar Riser . Mauro's Easy Riser was used by "Father Goose", Bill Lishman . Other biplane ultralights include the Belgian-designed Aviasud Mistral , the German FK12 Comet (1997–),
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#17327802640815208-519: The lower wing. Bracing is nearly always added between the upper and lower wings, in the form of interplane struts positioned symmetrically on either side of the fuselage and bracing wires to keep the structure from flexing, where the wings are not themselves cantilever structures. The primary advantage of the biplane over a monoplane is its ability to combine greater stiffness with lower weight. Stiffness requires structural depth and where early monoplanes had to have this provided with external bracing,
5292-453: The most famed copies was the Siemens-Schuckert D.I . The Albatros D.III and D.V , which had also copied the general layout from Nieuport, similarly provided the backbone of the German forces during the First World War. The Albatros sesquiplanes were widely acclaimed by their aircrews for their maneuverability and high rate of climb. During interwar period , the sesquiplane configuration continued to be popular, with numerous types such as
5376-486: The naval dockyard and perhaps the Mossmorran Natural Gas Liquids fractionation plant on the outskirts of Cowdenbeath. The east corner of Fife, along the string of villages between Earlsferry and Kingsbarns , and along with their hinterland, is known as the East Neuk (corner, or projecting point of land) of Fife; small settlements around sheltered harbours, with distinctive vernacular "Dutch" or corbie (crow) stepped gabled and stone-built architecture. The area has amongst
5460-422: The night ground attack role throughout the Second World War. In the case of the Po-2, production of the aircraft continued even after the end of the conflict, not ending until around 1952. A significant number of Po-2s were fielded by the Korean People's Air Force during the Korean War , inflicting serious damage during night raids on United Nations bases. The Po-2 is also the only biplane to be credited with
5544-438: The outbreak of the First World War biplanes had gained favour after several monoplane structural failures resulted in the RFC's "Monoplane Ban" when all monoplanes in military service were grounded, while the French also withdrew most monoplanes from combat roles and relegated them to training. Figures such as aviation author Bruce observed that there was an apparent prejudice held even against newly-designed monoplanes, such as
5628-424: The reduced stiffness, wire braced monoplanes often had multiple sets of flying and landing wires where a biplane could easily be built with one bay, with one set of landing and flying wires. The extra drag from the wires was not enough to offset the aerodynamic disadvantages from having two airfoils interfering with each other however. Strut braced monoplanes were tried but none of them were successful, not least due to
5712-457: The relatively compact decks of escort carriers . Its low stall speed and inherently tough design made it ideal for operations even in the often severe mid-Atlantic weather conditions. By the end of the conflict, the Swordfish held the distinction of having caused the destruction of a greater tonnage of Axis shipping than any other Allied aircraft. Both the German Heinkel He 50 and the Soviet Polikarpov Po-2 were used with relative success in
5796-442: The series of Nieuport military aircraft—from the Nieuport 10 through to the Nieuport 27 which formed the backbone of the Allied air forces between 1915 and 1917. The performance of the Nieuport sesquiplanes was so impressive that the Idflieg (the German Inspectorate of flying troops) requested their aircraft manufacturers to produce copies, an effort which was aided by several captured aircraft and detailed drawings; one of
5880-446: The smaller shire of Fife. In 1667 Commissioners of Supply were established for each shire, which would serve as the main administrative body for the area until the creation of county councils in 1890. Following the Acts of Union in 1707, the English term "county" came to be used interchangeably with the older term "shire". Elected county councils were established in 1890 under the Local Government (Scotland) Act 1889 , taking most of
5964-505: The stronghold of Clan MacDuff , and was used by successive monarchs of the House of Stuart , who favoured Fife for its rich hunting grounds. King James VI of Scotland described Fife, in Middle Scots , as a: "beggar's mantle fringed wi gowd" the golden fringe being the coast and its chain of little ports with their thriving fishing fleets and rich trading links with the Low Countries . Wool , linen , coal and salt were all traded. Salt pans heated by local coal were historically
6048-415: The structural problems associated with monoplanes, but offered little improvement for biplanes. The default design for a biplane has the wings positioned directly one above the other. Moving the upper wing forward relative to the lower one is called positive stagger or, more often, simply stagger. It can increase lift and reduce drag by reducing the aerodynamic interference effects between the two wings by
6132-670: The two planes when the high pressure air under the top wing and the low pressure air above the lower wing cancel each other out. This means that a biplane does not in practice obtain twice the lift of the similarly-sized monoplane. The farther apart the wings are spaced the less the interference, but the spacing struts must be longer, and the gap must be extremely large to reduce it appreciably. As engine power and speeds rose late in World War I , thick cantilever wings with inherently lower drag and higher wing loading became practical, which in turn made monoplanes more attractive as it helped solve
6216-432: The two related Dantorps built for Denmark. Data from Hawker Aircraft since 1919 General characteristics Performance Armament Related development Aircraft of comparable role, configuration, and era Related lists Biplane Biplanes offer several advantages over conventional cantilever monoplane designs: they permit lighter wing structures, low wing loading and smaller span for
6300-400: The upper and lower wings together. The sesquiplane is a type of biplane where one wing (usually the lower) is significantly smaller than the other. The word, from Latin, means "one-and-a-half wings". The arrangement can reduce drag and weight while retaining the biplane's structural advantages. The lower wing may have a significantly shorter span, or a reduced chord . Examples include
6384-434: The wings from folding up, and run from the underside of the outer wing to the lower wing root. Conversely, landing wires prevent the wings from sagging, and resist the forces when an aircraft is landing, and run from the upper wing centre section to outboard on the lower wings. Additional drag and anti-drag wires may be used to brace the cabane struts which connect the fuselage to the wings, and interplane struts, which connect
6468-421: The wings from moving forward when the aircraft stops and run the opposite direction to the drag wires. Both of these are usually hidden within the wings, and if the structure is sufficiently stiff otherwise, may be omitted in some designs. Indeed many early aircraft relied on the fabric covering of the wing to provide this rigidity, until higher speeds and forces made this inadequate. Externally, lift wires prevent
6552-707: Was a parliamentary constituency of Fife in the House of Commons of the United Kingdom until 1885 and the Fife constituency in the Parliament of Scotland until the Acts of Union 1707 . Fife is represented by five constituency members of the Scottish Parliament (MSPs) and four members of the United Kingdom parliament (MPs) who are sent to Holyrood and the British Parliament respectively. Following
6636-607: Was based at County Buildings in Catherine Street in Cupar , which had been built in 1817 as the county's sheriff court and meeting place for the commissioners of supply, replacing the town's medieval tolbooth which had performed the same functions. Fife County Council was abolished in 1975 under the Local Government (Scotland) Act 1973 , which replaced Scotland's counties, burghs and landward districts with
6720-504: Was complete an all-metal structure was introduced, made in what became the famous Hawker system of metal construction. The three methods of construction were designated: Horsley Mk I for the all-wooden aircraft, Horsley Mk II for the mixed material, and (unofficially) Horsley III for the all-metal aircraft. Some aircraft were fitted with floats. Two aircraft, known as the Hawker Dantorp and powered by Leopard II engines were sold to
6804-518: Was entirely in a single county. These changes saw some adjustments to Fife's boundaries with Kinross-shire and Perthshire, with the most significant change being that Fife gained the two parishes of Culross and Tulliallan , which had previously formed an exclave of Perthshire. Dunfermline and Kirkcaldy were brought within the administrative area of the county council in 1930, but classed as large burghs , allowing them to continue to deliver many local government functions themselves. Fife County Council
6888-404: Was more readily accomplished with a biplane. The smaller biplane wing allows greater maneuverability . Following World War I, this helped extend the era of the biplane and, despite the performance disadvantages, most fighter aircraft were biplanes as late as the mid-1930s. Specialist sports aerobatic biplanes are still made in small numbers. Biplanes suffer aerodynamic interference between
6972-499: Was the main benefactor of Dunfermline Abbey . The Abbey replaced Iona as the final resting place of Scotland's royal elite, with Robert I amongst those to be buried there. The Earl of Fife was until the 15th century considered the principal peer of the Scottish realm, and reserved the right of crowning the nation's monarchs, reflecting the prestige of the area. A new royal palace was gradually constructed at Falkland , formerly
7056-777: Was widely used by the United States Army Air Force (USAAF) while the US Navy operated the Naval Aircraft Factory N3N . In later civilian use in the US, the Stearman became particularly associated with stunt flying such as wing-walking , and with crop dusting, where its compactness worked well at low levels, where it had to dodge obstacles. Modern biplane designs still exist in specialist roles such as aerobatics and agricultural aircraft with
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