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Biplane

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forward inboard corner to the rear outboard corner. Anti-drag wires prevent 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 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 the upper and lower wings together.
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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 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 the drag from the number of struts used.
45: 622: 439: 496: 897: 394: 409: 602: 789: 454: 424: 261: 195: 148: 978: 678:"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 the 1050:
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 the
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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
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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
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Biplanes suffer aerodynamic interference between 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
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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
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In 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
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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, the biplane naturally has a deep structure and is therefore easier to make both light and strong. Rigging wires on
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or, more often, simply stagger. It can increase lift and reduce drag by reducing the aerodynamic interference effects between the two wings by a small degree, but more often was used to improve access to the cockpit. Many biplanes have staggered wings. Common examples include the
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monoplane designs: they permit lighter wing structures, low wing loading and smaller span for 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.
818:. 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 252:, thick cantilever wings with inherently lower drag and higher wing loading became practical, which in turn made monoplanes more attractive as it helped solve the structural problems associated with monoplanes, but offered little improvement for biplanes. 554:, 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. 292:
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 the
682:, 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. 769:, 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 685:
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, the Germans had been experimenting with a new generation of monoplanes, such as the
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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
542:(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 the most famed copies was the 363:
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
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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 the end of
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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
226:, combining both large wing area with light weight. Obtaining a large enough wing area without the wings being long, and thus dangerously flexible was more readily accomplished with a biplane. 593:
also featured a somewhat unusual sesquiplane arrangement, possessing a more substantial lower wing with two spars that eliminated the flutter problems encountered by single-spar sesquiplanes.
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on the spars, which then allow them to be more lightly built as well. The biplane does however need extra struts to maintain the gap between the wings, which add both weight and drag.
725:, 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 749:
aluminum for all flying surfaces, with a minimum of struts; however, it was relatively easy to damage the thin metal skin and required careful handling by ground crews. The 1918
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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
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structures, they require rigging wires to maintain their rigidity. Early aircraft used simple wire (either braided or plain), however during the First World War, the British
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J. A. D. Ackroyd; "Sir George Cayley: The Invention of the Aeroplane near Scarborough at the Time of Trafalgar", Journal of Aeronautical History, Paper No. 2011/6, 2011.
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than a monoplane wing. Improved structural techniques, better materials and higher speeds made the biplane configuration obsolete for most purposes by the late 1930s.
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sesquiplane fighters were all still operational after 1939. According to aviation author Gianni Cattaneo, the CR.42 was able to achieve success in the defensive
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Die Flugzeuge von Otto Lilienthal. Technik - Dokumentation - Rekonstruktion. (The airplanes of Otto Lilienthal. Technique - Documentation - Reconstruction)
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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
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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
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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.
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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
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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.
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which formed the backbone of the Allied air forces between 1915 and 1917. The performance of the Nieuport sesquiplanes was so impressive that the
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including biplanes and concluded that the externally braced biplane offered better prospects for powered flight than the monoplane. In 1903, the
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positioned symmetrically on either side of the fuselage and bracing wires to keep the structure from flexing, where the wings are not themselves
178:, while flaps are more usually positioned on the lower wing. Bracing is nearly always added between the upper and lower wings, in the form of 1022: 992:
are monoplanes, the low speeds and simple construction involved have inspired a small number of biplane ultralights, such as Larry Mauro's
690:, that might have ended the biplane's advantages earlier had the conflict not ended when it had. The French were also introducing the 733:. Despite its relative success, British production of the Dragon was quickly ended when in favour of the more powerful and elegant 515:
and weight while retaining the biplane's structural advantages. The lower wing may have a significantly shorter span, or a reduced
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interfere with each other's behaviour. In a biplane configuration with no stagger from the upper wing to the lower wing, the
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was a sesquiplane with the upper wing smaller than the lower, which was a much rarer configuration than the reverse. The
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hind limbs could not have opened out sideways but in flight would have hung below and slightly behind the fore limbs.
698:, although the type was quickly relegated to the advanced trainer role following the resolution of structural issues. 408: 2061: 2027: 1957: 1938: 1915: 1900: 1837: 1821: 1789: 1560: 368:
has a W shape cabane, however as it does not connect the wings to each other, it does not add to the number of bays.
2085: 233:. Following World War I, this helped extend the era of the biplane and, despite the performance disadvantages, most 1271: 814:
role until the end of the conflict, largely due to their ability to operate from the relatively compact decks of
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in 1895, though he is better known for his monoplanes. By 1896 a group of young men in the United States, led by
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adopted the idea for his steam-powered test rig, which lifted off but was held down by safety rails, in 1894.
2116: 44: 2121: 893:, and with crop dusting, where its compactness worked well at low levels, where it had to dodge obstacles. 882: 839: 621: 889:. In later civilian use in the US, the Stearman became particularly associated with stunt flying such as 375:
biplanes often needed still more bays to provide sufficient strength. These are sometimes referred to as
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with the competition aerobatics role and format for such a biplane well-defined by the mid-1930s by the
581:, all serving across a large number of air forces. In the general aviation sector, aircraft such as the 886: 734: 117: 17: 1496: 939: 473: 737:, which had been specifically designed to be a faster and more comfortable successor to the Dragon. 1065: 870: 792: 670:
Throughout the pioneer years, both biplanes and monoplanes were common, but by the outbreak of the
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The Great Book of Bombers: The World's Most Important Bombers from World War I to the Present Day
1605: 998:(1975–). Mauro also made a version powered with solar cells driving an electric motor called the 862: 757:
fully cantilevered biplane, but its arrival had come too late to see combat use in the conflict.
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bases. The Po-2 is also the only biplane to be credited with a documented jet-kill, as one
174:, although other arrangements have been used. Either or both of the main wings can support 785:
role against RAF bombers that were striking industrial targets throughout northern Italy.
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is reduced by 10 to 15 percent compared to that of a monoplane using the same airfoil and
8: 1060: 989: 750: 718: 561:, the sesquiplane configuration continued to be popular, with numerous types such as the 459: 399: 380: 142: 87: 63: 1715: 1700:"Biplane wing planform and flight performance of the feathered dinosaur Microraptor gui" 710:, offered lower drag than a conventional biplane while being stronger than a monoplane. 359:, the extra bay being necessary as overlong bays are prone to flexing and can fail. The 1734: 1699: 1070: 1042: 916: 858: 691: 675: 674:
biplanes had gained favour after several monoplane structural failures resulted in the
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arrangements, where the wings are placed forward and aft, instead of above and below.
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dominated aerobatics for many years after World War II and is still in production.
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with one set of such struts connecting the wings on each side of the aircraft is a
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Proceedings of the National Academy of Sciences of the United States of America
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F. H. Norton, The effect of staggering a biplane, NACA TN-70, Table, 1 p.3 1921
951: 920: 878: 815: 807: 707: 654: 586: 547: 2100: 78:, used a biplane wing arrangement, as did many aircraft in the early years of 2110: 1996: 924: 834: 826: 800: 782: 687: 51: 1724: 27:
Airplane wing configuration with two vertically stacked main flying surfaces
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types, which were biplanes with abbreviated lower wings such as the French
663: 630: 551: 444: 352: 338: 223: 199: 171: 170:, while the upper wing is raised above the fuselage with an arrangement of 156: 75: 2082: 2012: 1561:"Soviet Polikarpov U-2 bomber, trainer; Polikarpov Po-2 bomber, trainer." 1018: 999: 874: 819: 762: 742: 703: 699: 679: 658: 650: 642: 617:
1909 Voisin biplane, with "curtains" connecting the upper and lower wings
590: 531: 527: 500: 429: 414: 360: 265: 249: 194: 102: 31: 1851:(2nd ed.). Cambridge, UK: Cambridge University Press. p. 606. 1672:. Aircraft in Profile no. 49. Leatherhead, Surrey: Profile Publications. 1805: 994: 908: 843: 574: 479: 298: 238: 230: 183: 94: 877:, which saw service postwar in the French and Belgian Air Forces. The 147: 943: 754: 333:. This provided sufficient strength for smaller aircraft such as the 260: 207: 83: 71: 1796:
Dommasch, Daniel O.; Sherby, Sydney S.; Connolly, Thomas F. (1961).
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interplane struts which reduced the work needed in rigging a biplane
128: 958: 947: 578: 523: 326: 167: 82:. While a biplane wing structure has a structural advantage over a 79: 2020:
Albatros Aces of World War I Part 2 (Aircraft of the Aces No. 77).
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Modern biplane designs still exist in specialist roles such as
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Herts, UK: Harleyford Publications Ltd., 1960, pp. 84–85.
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engines respectively. Some older biplane designs, such as the
1976:"Report on the Junker Armoured Two-Seater Biplane, Type J.1." 778: 1755:(in French). France: FAREWO (French Aviation Research Work). 1349: 957:
The two most produced biplane designs were the 1913 British
1888:. Leatherhead, Surrey, UK: Profile Publications Ltd., 1966. 1694:. Leatherhead, Surrey, UK: Profile Publications Ltd., 1967. 1687:. Leatherhead, Surrey, UK: Profile Publications Ltd., 1967. 954:
are available in upgraded versions with turboprop engines.
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The vast majority of biplane designs have been fitted with
730: 305:. However, positive (forward) stagger is much more common. 113: 70:
stacked one above the other. The first powered, controlled
67: 717:, numerous biplane airliners were introduced. The British 237:
were biplanes as late as the mid-1930s. Specialist sports
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The de Havilland Rapide: Profile Publications Number 144
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has smaller chord, but similar span, than the upper wing
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Carrollton, Texas: Squadron/Signal Publications, 1991.
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Other biplane ultralights include the Belgian-designed
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biplane became the first successful powered aeroplane.
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have no interplane struts and are referred to as being
1952:. London: Putnam & Company Ltd. pp. 125–130. 1795: 1664:. Leatherhead, Surrey, UK: Profile Publications, 1965. 1910:. St. Paul, Minnesota: MBI Publishing Company, 2002. 1886:
The de Havilland Tiger Moth: Aircraft Profile No. 132
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was very successful too, with more than 18000 built.
903:, of which over 20,000 were built by the Soviet Union 810:
from its aircraft carriers, and used the type in the
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Biplanes offer several advantages over conventional
1985:Riding, Richard (June 1980). "The Black Dragons". 1753:Nieuport 17 Analyse détaillée des premières series 846:, inflicting serious damage during night raids on 1363:. Newark, Ohio, U.S. 28 December 1903. p. 7. 609:in Lichterfelde (near Berlin) on October 19, 1895 2108: 1971:. Leatherhead, Surrey, UK: Profile Publications. 961:of which 11,303 were built, and the 1928 Soviet 1816:. Botley, Oxford, UK: Osprey Publishing, 2003. 189: 1782:Sopwith Fighters in Action (Aircraft No. 110). 1515:Armando François: Biplane fighter aces Italy." 1991:. Vol. 8, no. 6. pp. 284–290. 1685:The Bristol M.1 (Aircraft in Profile no. 193) 1106: 833:were used with relative success in the night 637:The stacking of wing planes was suggested by 1893:British Civil Aircraft since 1919: Volume II 1868:The Cambridge Aerospace Dictionary Cambridge 1832:. Hertfordshire, UK: Albatros Publications. 1698:Chatterjee S, Templin RJ (30 January 2007). 1692:The Fiat CR.42 (Aircraft in Profile no. 170) 535: 206:The primary advantage of the biplane over a 1931:British Racing and Record-Breaking Aircraft 1450: 1196: 1187: 1139: 1121: 795:PT-13D biplane trainer from the 30s and 40s 1870:. Cambridge University Press. p. 34. 1814:B-29 Superfortress units of the Korean War 1640: 1595:, Air Force Association, June 2011, p. 57. 1210: 1208: 1178: 1169: 1130: 379:. A small number of biplanes, such as the 241:biplanes are still made in small numbers. 166:The lower wing is usually attached to the 2083:Bird wings evolved from biplane dinosaurs 2054:Swordfish: The Story of the Taranto Raid. 1733: 1723: 1420: 1249: 1247: 822:shipping than any other Allied aircraft. 2056:London: Weidenfeld and Nicolson, 2003. 1750: 1545: 1148: 976: 895: 787: 649:designed and flew two different biplane 620: 612: 600: 494: 432:single-bay biplane with auxiliary struts 259: 248:As engine power and speeds rose late in 229:The smaller biplane wing allows greater 193: 146: 127: 43: 1865: 1846: 1830:Dornier D.I Windsock Mini datafile # 12 1759: 1667: 1527: 1480: 1376: 1367: 1324:. Otto-Lilienthal-Museum Anklam, 2016. 1217: 1205: 885:(USAAF) while the US Navy operated the 753:fighter was an all-metal stressed-skin 14: 2109: 1984: 1947: 1923:Fighter Aircraft of the 1914-1918 War. 1895:. London:Putnam, Second edition 1973. 1459: 1444: 1334: 1290: 1284: 1244: 972: 108:The term is also occasionally used in 2033: 1950:Saunders and Saro Aircraft since 1917 1928: 1827: 1536: 1088: 585:proved to be relatively popular. The 2103:, Octave Chanute biplane hang glider 1966: 1554: 1162: 1160: 474:Bracing (aeronautics) § Rigging 222:speed, which in turn required a low 1800:(3rd ed.). Pitman Publishing. 1497:"Polikarpov I-153 Chaika (Seagull)" 984:electric-powered ultralight biplane 24: 1036: 478:Because most biplanes do not have 123: 25: 2138: 2069: 2022:Oxford: Osprey Publishing, 2007. 1341:"From Lilienthal to the Wrights." 1157: 37:For biplanes in mathematics, see 1662:Profile No 17: The SPAD XIII C.1 452: 437: 422: 407: 392: 101:Biplanes are distinguished from 1653: 1626: 1612: 1598: 1591:Grier, Peter. "15 April 1953". 1585: 1576: 1503: 1489: 1429: 1407: 1385: 1314: 1305: 1296: 1265: 1235: 1226: 522:Examples include the series of 313:The space enclosed by a set of 2005:The Fairey Swordfish Mks. I-IV 1849:Cambridge Aerospace dictionary 1606:"Larry Mauro and Bill Lishman" 1097: 490: 13: 1: 1076: 462:four-bay or multi-bay biplane 325:is used), hence a biplane or 1646:Chatterjee, 2007, pp.1576–80 1573:Retrieved: 30 November 2012. 1272:FAA Registry Search for Waco 1081: 1006:was used by "Father Goose", 883:United States Army Air Force 190:Advantages and disadvantages 39:Block design § Biplanes 7: 1760:Coggins, Edward V. (2000). 1113:"The Beechcraft Biplanes". 1054: 605:Otto Lilienthal flying his 526:military aircraft—from the 10: 2143: 1524:. Retrieved: 22 July 2009. 1346:Retrieved: 8 January 2012. 887:Naval Aircraft Factory N3N 873:(RCAF) and others and the 735:de Havilland Dragon Rapide 596: 471: 467: 255: 36: 29: 2075:Historical Collection of 1361:The Newark Daily Advocate 1262:VanWyngarden 2007, p. 19. 940:WSK-Mielec M-15 Belphegor 934:. Exceptions include the 840:Korean People's Air Force 132:1920s biplane hang glider 2034:Wragg, David W. (1974). 1277:17 February 2012 at the 1066:Multiplane (aeronautics) 871:Royal Canadian Air Force 793:Boeing-Stearman Model 75 583:Waco Custom Cabin series 30:Not to be confused with 1967:Moss, Peter W. (1966). 1751:Chassard, Marc (2018). 1725:10.1073/pnas.0609975104 1668:Andrews, C. F. (1966). 1518:surfcity.kund.dalnet.se 1344:Otto Lilienthal Museum. 1241:Andrews 1966, pp. 3, 7. 881:was widely used by the 863:de Havilland Tiger Moth 346:de Havilland Tiger Moth 308: 279:de Havilland Tiger Moth 1948:London, Peter (1988). 1866:Gunston, Bill (2004). 1847:Gunston, Bill (2009). 1477:18 March 1920, p. 317. 1426:Lamberton 1960, p. 84. 1415:Fokker's Flying Razors 1393:"Bristol M1 Monoplane" 1281:accessed 12 June 2009. 1253:Andrews 1966, pp. 7–8. 1145:Andrews 1965, pp. 6–7. 1136:Jackson 1966, pp. 3–4. 985: 904: 852:Lockheed F-94 Starfire 812:anti-submarine warfare 796: 634: 618: 610: 563:Nieuport-Delage NiD 42 536: 504: 499:The lower wing of the 484:Royal Aircraft Factory 417:single-bay sesquiplane 323:the architectural form 303:Beechcraft Staggerwing 283:Bücker Bü 131 Jungmann 269: 203: 202:biplane from the 1940s 163: 133: 55: 2038:. Osprey Publishing. 1929:Lewis, Peter (1971). 1828:Grosz, Peter (1998). 1798:Airplane Aerodynamics 1533:Cattaneo 1967, p. 10. 1435:Jackson 1973, p. 122. 1223:Gunston 2009, p. 606. 1127:Cooksley 1991, p. 34. 980: 932:reciprocating engines 913:agricultural aircraft 899: 791: 773:biplane, the Italian 745:sesquiplane utilized 624: 616: 604: 544:Siemens-Schuckert D.I 498: 263: 197: 150: 131: 47: 2117:Aircraft wing design 2036:Flight before flying 2018:VanWyngarden, Greg. 1620:"Lite Flyer Biplane" 1522:Håkans aviation page 1486:Coggins 2000, p. 20. 1232:Chassard 2018, p. 1. 1202:Gunston, 2004, p.375 1193:Gunston, 2004, p.382 1175:Gunston, 2004, p.210 1103:Berriman, 1913, p.26 723:Trail of the Caribou 371:Large transport and 351:The larger two-seat 2122:Wing configurations 1716:2007PNAS..104.1576C 1542:Wragg 2003, p. 142. 1509:Gustavsson, Håkan. 1456:Lewis 1971, p. 265. 1413:Connors, John F., " 1311:Wragg 1974, p. 206. 1184:Gunston, 2004, p.51 1061:History of aviation 973:Ultralight aircraft 751:Zeppelin-Lindau D.I 719:de Havilland Dragon 460:Handley Page V/1500 400:Zeppelin-Lindau D.I 381:Zeppelin-Lindau D.I 366:Sopwith 1½ Strutter 86:, it produces more 64:fixed-wing aircraft 2088:2007-01-27 at the 1933:. London: Putnam. 1763:Wings That Stay on 1690:Cattaneo, Gianni. 1593:Air Force Magazine 1566:2014-07-03 at the 1551:Stott 1971, p. 21. 1513:Tenente Colonnello 1320:Schwipps, Werner. 1293:, pp. 125–130 1214:Wragg 1974, p. 54. 1071:Wing configuration 1043:feathered dinosaur 986: 917:Udet U 12 Flamingo 905: 797: 765:. At the start of 692:Morane-Saulnier AI 635: 619: 611: 505: 377:multi-bay biplanes 331:single-bay biplane 270: 264:Wing stagger on a 204: 164: 134: 112:, to describe the 56: 1988:Aeroplane Monthly 1858:978-0-521-19165-4 1780:Cooksley, Peter. 1582:Dorr 2003, p. 50. 1571:wwiivehicles.com. 1382:Bruce 1967, p. 6. 1373:Bruce 1967, p. 3. 1330:978-3-941681-88-0 1166:Grosz 1998, p. 0. 1154:Lake 2002, p. 40. 982:Mauro Solar Riser 771:Gloster Gladiator 696:parasol monoplane 694:, a strut-braced 639:Sir George Cayley 402:strutless biplane 315:interplane struts 180:interplane struts 153:Gloster Gladiator 16:(Redirected from 2134: 2077:Biplane Pictures 2049: 2000: 1981:, 18 March 1920. 1972: 1963: 1944: 1921:Lamberton, W.M. 1881: 1862: 1843: 1812:Dorr, Robert F. 1809: 1777: 1756: 1747: 1737: 1727: 1680:, Methuen, 1913. 1676:Berriman, A.E.; 1673: 1647: 1644: 1638: 1637: 1630: 1624: 1623: 1616: 1610: 1609: 1602: 1596: 1589: 1583: 1580: 1574: 1558: 1552: 1549: 1543: 1540: 1534: 1531: 1525: 1507: 1501: 1500: 1493: 1487: 1484: 1478: 1472: 1466: 1465:Moss 1966, p. 3. 1463: 1457: 1454: 1448: 1442: 1436: 1433: 1427: 1424: 1418: 1411: 1405: 1404: 1402: 1400: 1389: 1383: 1380: 1374: 1371: 1365: 1364: 1353: 1347: 1338: 1332: 1318: 1312: 1309: 1303: 1300: 1294: 1288: 1282: 1269: 1263: 1260: 1254: 1251: 1242: 1239: 1233: 1230: 1224: 1221: 1215: 1212: 1203: 1200: 1194: 1191: 1185: 1182: 1176: 1173: 1167: 1164: 1155: 1152: 1146: 1143: 1137: 1134: 1128: 1125: 1119: 1118: 1110: 1104: 1101: 1095: 1092: 825:Both the German 805:Fairey Swordfish 775:Fiat CR.42 Falco 741:heavy. The 1917 627:Fiat CR.42 Falco 541: 456: 441: 426: 411: 396: 343:Second World War 341:fighter and the 274:positive stagger 235:fighter aircraft 139:lift coefficient 21: 2142: 2141: 2137: 2136: 2135: 2133: 2132: 2131: 2107: 2106: 2090:Wayback Machine 2072: 2067: 2046: 1960: 1941: 1878: 1859: 1840: 1774: 1670:The Nieuport 17 1656: 1651: 1650: 1645: 1641: 1632: 1631: 1627: 1618: 1617: 1613: 1604: 1603: 1599: 1590: 1586: 1581: 1577: 1568:Wayback Machine 1559: 1555: 1550: 1546: 1541: 1537: 1532: 1528: 1508: 1504: 1495: 1494: 1490: 1485: 1481: 1473: 1469: 1464: 1460: 1455: 1451: 1443: 1439: 1434: 1430: 1425: 1421: 1412: 1408: 1398: 1396: 1391: 1390: 1386: 1381: 1377: 1372: 1368: 1355: 1354: 1350: 1339: 1335: 1319: 1315: 1310: 1306: 1301: 1297: 1289: 1285: 1279:Wayback Machine 1270: 1266: 1261: 1257: 1252: 1245: 1240: 1236: 1231: 1227: 1222: 1218: 1213: 1206: 1201: 1197: 1192: 1188: 1183: 1179: 1174: 1170: 1165: 1158: 1153: 1149: 1144: 1140: 1135: 1131: 1126: 1122: 1117:. January 1961. 1112: 1111: 1107: 1102: 1098: 1093: 1089: 1084: 1079: 1057: 1047:Microraptor gui 1039: 1037:Avian evolution 1031:Murphy Renegade 1027:Sherwood Ranger 1015:Aviasud Mistral 975: 963:Polikarpov Po-2 901:Polikarpov Po-2 867:Royal Air Force 831:Polikarpov Po-2 829:and the Soviet 816:escort carriers 715:Interwar period 672:First World War 647:Otto Lilienthal 599: 559:interwar period 530:through to the 493: 476: 470: 463: 457: 448: 447:two-bay biplane 442: 433: 427: 418: 412: 403: 397: 357:two bay biplane 348:basic trainer. 335:First World War 311: 295:Sopwith Dolphin 287:Travel Air 2000 268:primary trainer 258: 231:maneuverability 192: 126: 124:Characteristics 49:First World War 42: 35: 28: 23: 22: 15: 12: 11: 5: 2140: 2130: 2129: 2124: 2119: 2105: 2104: 2098: 2081:Jacqui Hayes: 2079: 2071: 2070:External links 2068: 2066: 2065: 2052:Wragg, David. 2050: 2045:978-0850451658 2044: 2031: 2016: 2003:Stott, Ian G. 2001: 1982: 1973: 1964: 1958: 1945: 1939: 1926: 1919: 1904: 1891:Jackson, A.J. 1889: 1884:Jackson, A.J. 1882: 1877:978-0521841405 1876: 1863: 1857: 1844: 1838: 1825: 1810: 1793: 1778: 1773:978-1681621760 1772: 1757: 1748: 1710:(5): 1576–80. 1695: 1688: 1681: 1674: 1665: 1660:Andrews, C.F. 1657: 1655: 1652: 1649: 1648: 1639: 1634:"Pilotmix.com" 1625: 1611: 1597: 1584: 1575: 1553: 1544: 1535: 1526: 1502: 1488: 1479: 1467: 1458: 1449: 1447:, p. 289. 1437: 1428: 1419: 1406: 1384: 1375: 1366: 1348: 1333: 1313: 1304: 1295: 1283: 1264: 1255: 1243: 1234: 1225: 1216: 1204: 1195: 1186: 1177: 1168: 1156: 1147: 1138: 1129: 1120: 1115:Sport Aviation 1105: 1096: 1086: 1085: 1083: 1080: 1078: 1075: 1074: 1073: 1068: 1063: 1056: 1053: 1038: 1035: 988:Although most 974: 971: 952:Grumman Ag Cat 942:, fitted with 921:Waco Taperwing 879:Stearman PT-13 857:Later biplane 848:United Nations 808:torpedo bomber 708:Albatros D.III 657:, were flying 655:Octave Chanute 598: 595: 587:Saro Windhover 548:Albatros D.III 492: 489: 472:Main article: 469: 466: 465: 464: 458: 451: 449: 443: 436: 434: 428: 421: 419: 413: 406: 404: 398: 391: 310: 307: 257: 254: 191: 188: 125: 122: 118:flying animals 66:with two main 26: 9: 6: 4: 3: 2: 2139: 2128: 2125: 2123: 2120: 2118: 2115: 2114: 2112: 2102: 2101:Spicerweb.org 2099: 2097: 2096: 2091: 2087: 2084: 2080: 2078: 2074: 2073: 2063: 2062:0-297-84667-1 2059: 2055: 2051: 2047: 2041: 2037: 2032: 2029: 2028:1-84603-179-6 2025: 2021: 2017: 2014: 2010: 2006: 2002: 1998: 1994: 1990: 1989: 1983: 1980: 1977: 1974: 1970: 1965: 1961: 1959:0-85177-814-3 1955: 1951: 1946: 1942: 1940:0-370-00067-6 1936: 1932: 1927: 1924: 1920: 1917: 1916:0-7603-1347-4 1913: 1909: 1905: 1902: 1901:0-370-10010-7 1898: 1894: 1890: 1887: 1883: 1879: 1873: 1869: 1864: 1860: 1854: 1850: 1845: 1841: 1839:9780948414923 1835: 1831: 1826: 1823: 1822:1-84176-654-2 1819: 1815: 1811: 1807: 1803: 1799: 1794: 1791: 1790:0-89747-256-X 1787: 1783: 1779: 1775: 1769: 1765: 1764: 1758: 1754: 1749: 1745: 1741: 1736: 1731: 1726: 1721: 1717: 1713: 1709: 1705: 1701: 1696: 1693: 1689: 1686: 1682: 1679: 1675: 1671: 1666: 1663: 1659: 1658: 1643: 1635: 1629: 1621: 1615: 1607: 1601: 1594: 1588: 1579: 1572: 1569: 1565: 1562: 1557: 1548: 1539: 1530: 1523: 1519: 1516: 1514: 1506: 1498: 1492: 1483: 1476: 1471: 1462: 1453: 1446: 1441: 1432: 1423: 1416: 1410: 1395:. BAE Systems 1394: 1388: 1379: 1370: 1362: 1358: 1352: 1345: 1342: 1337: 1331: 1327: 1323: 1317: 1308: 1299: 1292: 1287: 1280: 1276: 1273: 1268: 1259: 1250: 1248: 1238: 1229: 1220: 1211: 1209: 1199: 1190: 1181: 1172: 1163: 1161: 1151: 1142: 1133: 1124: 1116: 1109: 1100: 1091: 1087: 1072: 1069: 1067: 1064: 1062: 1059: 1058: 1052: 1049: 1048: 1044: 1034: 1032: 1028: 1025:Biplane, the 1024: 1021:(1997–), the 1020: 1017:, the German 1016: 1011: 1009: 1005: 1001: 997: 996: 991: 983: 979: 970: 968: 964: 960: 955: 953: 949: 945: 941: 937: 933: 928: 926: 925:Pitts Special 922: 918: 914: 910: 902: 898: 894: 892: 888: 884: 880: 876: 872: 868: 864: 861:included the 860: 855: 853: 849: 845: 841: 836: 835:ground attack 832: 828: 827:Heinkel He 50 823: 821: 817: 813: 809: 806: 803:operated the 802: 801:Fleet Air Arm 794: 790: 786: 784: 783:night fighter 780: 776: 772: 768: 764: 758: 756: 752: 748: 744: 738: 736: 732: 728: 724: 720: 716: 711: 709: 705: 701: 697: 693: 689: 688:Fokker D.VIII 683: 681: 677: 673: 668: 666: 665: 660: 656: 652: 648: 644: 640: 632: 628: 623: 615: 608: 607:Large Biplane 603: 594: 592: 588: 584: 580: 577:& e, and 576: 572: 568: 564: 560: 555: 553: 549: 545: 540: 539: 533: 529: 525: 520: 518: 514: 510: 502: 497: 488: 485: 481: 475: 461: 455: 450: 446: 440: 435: 431: 425: 420: 416: 410: 405: 401: 395: 390: 389: 388: 386: 382: 378: 374: 369: 367: 362: 358: 354: 349: 347: 344: 340: 336: 332: 328: 324: 320: 316: 306: 304: 300: 296: 290: 288: 284: 280: 275: 267: 262: 253: 251: 246: 242: 240: 236: 232: 227: 225: 221: 216: 212: 209: 201: 196: 187: 185: 181: 177: 173: 172:cabane struts 169: 161: 158: 154: 149: 145: 144: 140: 130: 121: 119: 115: 111: 106: 104: 99: 96: 91: 89: 85: 81: 77: 73: 69: 65: 61: 53: 52:Sopwith Camel 50: 46: 40: 33: 19: 2093: 2053: 2035: 2019: 2004: 1986: 1978: 1968: 1949: 1930: 1922: 1907: 1892: 1885: 1867: 1848: 1829: 1813: 1797: 1781: 1762: 1752: 1707: 1703: 1691: 1684: 1683:Bruce, J.M. 1677: 1669: 1661: 1654:Bibliography 1642: 1628: 1614: 1600: 1592: 1587: 1578: 1570: 1556: 1547: 1538: 1529: 1521: 1517: 1512: 1505: 1491: 1482: 1474: 1470: 1461: 1452: 1440: 1431: 1422: 1414: 1409: 1397:. Retrieved 1387: 1378: 1369: 1360: 1351: 1343: 1336: 1321: 1316: 1307: 1298: 1286: 1267: 1258: 1237: 1228: 1219: 1198: 1189: 1180: 1171: 1150: 1141: 1132: 1123: 1114: 1108: 1099: 1090: 1045: 1040: 1012: 1008:Bill Lishman 1003: 993: 987: 967:Antonov An-2 956: 936:Antonov An-3 929: 906: 891:wing-walking 856: 824: 799:The British 798: 767:World War II 759: 739: 722: 712: 684: 669: 664:Wright Flyer 662: 659:hang gliders 651:hang gliders 636: 631:Warren truss 556: 521: 508: 506: 477: 445:Curtiss JN-4 384: 376: 370: 356: 353:Curtiss JN-4 350: 339:Fokker D.VII 330: 318: 317:is called a 312: 291: 271: 247: 243: 228: 224:wing loading 217: 213: 205: 200:Antonov An-2 186:structures. 165: 157:World War II 143:aspect ratio 135: 107: 100: 92: 76:Wright Flyer 74:to fly, the 59: 57: 1906:Lake, Jon. 1445:Riding 1980 1291:London 1988 1000:Solar Riser 990:ultralights 875:Stampe SV.4 842:during the 777:and Soviet 763:World War I 743:Junkers J.I 713:During the 706:and German 704:Nieuport 17 700:Sesquiplane 680:Bristol M.1 643:Hiram Maxim 625:Late 1930s 591:Pfalz D.III 575:Fokker C.Vd 532:Nieuport 27 528:Nieuport 10 509:sesquiplane 501:Nieuport 17 491:Sesquiplane 430:SPAD S.XIII 415:Nieuport 23 361:SPAD S.XIII 355:Jenny is a 266:Fleet Finch 250:World War I 103:tandem wing 32:Tandem wing 2111:Categories 1806:B003YKT5YK 1766:. Turner. 1077:References 1029:, and the 1023:Lite Flyer 1019:FK12 Comet 1004:Easy Riser 1002:. Mauro's 995:Easy Riser 909:aerobatics 844:Korean War 747:corrugated 480:cantilever 299:Breguet 14 184:cantilever 95:cantilever 18:Single bay 1997:0143-7240 1399:30 August 1082:Citations 944:turboprop 755:monocoque 641:in 1843. 385:strutless 321:(much as 239:aerobatic 208:monoplane 84:monoplane 72:aeroplane 2127:Biplanes 2086:Archived 2013:53091961 1744:17242354 1678:Aviation 1564:Archived 1275:Archived 1055:See also 959:Avro 504 948:turbofan 859:trainers 579:Potez 25 573:series, 524:Nieuport 327:triplane 220:stalling 176:ailerons 168:fuselage 116:of some 80:aviation 1735:1780066 1712:Bibcode 869:(RAF), 865:in the 727:Baghdad 597:History 557:During 538:Idflieg 468:Rigging 373:bombing 256:Stagger 198:Soviet 162:biplane 160:fighter 110:biology 60:biplane 54:biplane 2095:Cosmos 2060:  2042:  2026:  2011:  1995:  1979:Flight 1956:  1937:  1914:  1899:  1874:  1855:  1836:  1820:  1804:  1788:  1770:  1742:  1732:  1475:Flight 1328:  923:. The 546:. The 779:I-153 676:RFC's 629:with 517:chord 337:-era 114:wings 68:wings 62:is a 2058:ISBN 2040:ISBN 2024:ISBN 2009:OCLC 1993:ISSN 1954:ISBN 1935:ISBN 1912:ISBN 1897:ISBN 1872:ISBN 1853:ISBN 1834:ISBN 1818:ISBN 1802:ASIN 1786:ISBN 1768:ISBN 1740:PMID 1401:2018 1326:ISBN 1041:The 946:and 938:and 919:and 911:and 820:Axis 731:Iraq 550:and 513:drag 507:The 309:Bays 301:and 285:and 155:, a 151:The 88:drag 1730:PMC 1720:doi 1708:104 552:D.V 319:bay 2113:: 2092:, 1738:. 1728:. 1718:. 1706:. 1702:. 1520:, 1359:. 1246:^ 1207:^ 1159:^ 1033:. 1010:. 729:, 571:62 567:52 519:. 387:. 297:, 289:. 281:, 120:. 58:A 2064:. 2048:. 2030:. 2015:. 1999:. 1962:. 1943:. 1918:. 1903:. 1880:. 1861:. 1842:. 1824:. 1808:. 1792:. 1776:. 1746:. 1722:: 1714:: 1636:. 1622:. 1608:. 1511:" 1499:. 1403:. 569:/ 565:/ 41:. 34:. 20:)

Index

Single bay
Tandem wing
Block design § Biplanes

First World War
Sopwith Camel
fixed-wing aircraft
wings
aeroplane
Wright Flyer
aviation
monoplane
drag
cantilever
tandem wing
biology
wings
flying animals

lift coefficient
aspect ratio

Gloster Gladiator
World War II
fighter
fuselage
cabane struts
ailerons
interplane struts
cantilever

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