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141-476: The Beechcraft Model 17 Staggerwing is an American biplane with an atypical negative wing stagger (the lower wing is farther forward than the upper wing). It first flew in 1932. In 1932, Walter H. Beech , formerly head of the aircraft manufacturer Travel Air , left Curtiss-Wright , which had purchased Travel Air in 1929, to set up a new company, Beech Aircraft Corporation , based in Wichita, Kansas . Beech took

282-842: A German naturalist, Peter Simon Pallas , as a valley that once connected the Black Sea and the Caspian Sea, and subsequently was proposed as a natural boundary between continents. By the mid-19th century, there were three main conventions, one following the Don, the Volga–Don Canal and the Volga, the other following the Kuma–Manych Depression to the Caspian and then the Ural River, and the third abandoning

423-631: A Semitic term for west , this being either Akkadian erebu meaning 'to go down, set' (said of the sun) or Phoenician 'ereb 'evening, west', which is at the origin of Arabic maghreb and Hebrew ma'arav . Martin Litchfield West stated that "phonologically, the match between Europa's name and any form of the Semitic word is very poor", while Beekes considers a connection to Semitic languages improbable. Most major world languages use words derived from Eurṓpē or Europa to refer to

564-646: 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

705-412: 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,

846-791: A boundary along the Terek and Kuban rivers, so southwards from the Kuma and the Manych, but still with the Caucasus entirely in Asia. However, most geographers in the Soviet Union favoured the boundary along the Caucasus crest, and this became the common convention in the later 20th century, although the Kuma–Manych boundary remained in use in some 20th-century maps. Some view the separation of Eurasia into Asia and Europe as

987-567: A common currency, the euro , and participate in the European single market and a customs union . A large bloc of countries, the Schengen Area , have also abolished internal border and immigration controls. Regular popular elections take place every five years within the EU; they are considered to be the second-largest democratic elections in the world after India's . The EU is the third-largest economy in

1128-608: 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

1269-509: 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

1410-422: 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

1551-406: A large land mass completely or almost completely surrounded by water at its borders. Prior to the adoption of the current convention that includes mountain divides, the border between Europe and Asia had been redefined several times since its first conception in classical antiquity , but always as a series of rivers, seas and straits that were believed to extend an unknown distance east and north from

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1692-507: 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

1833-648: A number of Model B17Ls were pressed into service as bombers by the Spanish Republican Air Force , the air forces of the Second Spanish Republic during the Spanish Civil War . China ordered a number of Staggerwings to use as air ambulances in its fight against Imperial Japan . Finland had one C17L as a liaison aircraft between 1940 and 1945. On October 2, 1941, Beech shipped a special camouflaged D17S to Prince Bernhard of Lippe , who

1974-564: A powerful four-passenger luxury aircraft, soon replaced the venerable Staggerwing in the Beech product line, at about a third of the price. The Bonanza was a smaller aircraft with less horsepower, but carried four people at a similar speed to the Staggerwing. Beechcraft sold the 785th and final Staggerwing in 1948 and delivered it in 1949. In March 2003, Plane & Pilot magazine named the Staggerwing one of its Top Ten All-Time Favorite aircraft. In

2115-730: A precise eastern boundary of Europe arises in the Early Modern period, as the eastern extension of Muscovy began to include North Asia . Throughout the Middle Ages and into the 18th century, the traditional division of the landmass of Eurasia into two continents, Europe and Asia, followed Ptolemy, with the boundary following the Turkish Straits , the Black Sea , the Kerch Strait , the Sea of Azov and

2256-701: A residue of Eurocentrism : "In physical, cultural and historical diversity, China and India are comparable to the entire European landmass, not to a single European country. [...]." During the 2.5 million years of the Pleistocene , numerous cold phases called glacials ( Quaternary ice age ), or significant advances of continental ice sheets, in Europe and North America, occurred at intervals of approximately 40,000 to 100,000 years. The long glacial periods were separated by more temperate and shorter interglacials which lasted about 10,000–15,000 years. The last cold episode of

2397-661: A result, the Reconquista took the greater part of eight hundred years, in which period a long list of Alfonsos, Sanchos, Ordoños, Ramiros, Fernandos, and Bermudos would be fighting their Christian rivals as much as the Muslim invaders. During the Dark Ages, the Western Roman Empire fell under the control of various tribes. The Germanic and Slav tribes established their domains over Western and Eastern Europe, respectively. Eventually

2538-817: A short flight test program, the YC-43s went to Europe to serve as liaison aircraft with the air attachés in London , Paris , and Rome . Early in World War II, the need for a compact executive-type transport or courier aircraft became apparent, and in 1942, the United States Army Air Forces ordered the first of 270 Model 17s for service within the United States and overseas as the UC-43 (USAAF designation for Utility , Cargo ). These differed only in minor details from

2679-463: 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

2820-473: 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

2961-622: Is affected by warm Atlantic currents, such as the Gulf Stream , which produce a temperate climate , tempering winters and summers, on much of the continent. Further from the sea, seasonal differences are more noticeable producing more continental climates . European culture consists of a range of national and regional cultures, which form the central roots of the wider Western civilisation , and together commonly reference ancient Greece and ancient Rome , particularly through their Christian successors , as crucial and shared roots. Beginning with

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3102-401: Is also evidence that Homo sapiens arrived in Europe around 54,000 years ago, some 10,000 years earlier than previously thought. The earliest sites in Europe dated 48,000 years ago are Riparo Mochi (Italy), Geissenklösterle (Germany) and Isturitz (France). The European Neolithic period—marked by the cultivation of crops and the raising of livestock, increased numbers of settlements and

3243-547: 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

3384-481: Is closest to Anatolia (or Asia Minor), but is considered part of Europe politically and it is a member state of the EU. Malta was considered an island of North-western Africa for centuries, but now it is considered to be part of Europe as well. "Europe", as used specifically in British English , may also refer to Continental Europe exclusively. The term "continent" usually implies the physical geography of

3525-556: Is generally considered a transcontinental country divided entirely by water, while Russia and Kazakhstan are only partly divided by waterways. France, the Netherlands, Portugal and Spain are also transcontinental (or more properly, intercontinental, when oceans or large seas are involved) in that their main land areas are in Europe while pockets of their territories are located on other continents separated from Europe by large bodies of water. Spain, for example, has territories south of

3666-533: Is sometimes considered to mark the end of antiquity; alternatively antiquity is considered to end with the fall of the Western Roman Empire in 476 CE; the closure of the pagan Platonic Academy of Athens in 529 CE; or the rise of Islam in the early 7th century CE. During most of its existence, the Byzantine Empire was one of the most powerful economic, cultural, and military forces in Europe. During

3807-422: Is somewhat arbitrary and inconsistent compared to any clear-cut definition of the term "continent". The current division of Eurasia into two continents now reflects East-West cultural, linguistic and ethnic differences which vary on a spectrum rather than with a sharp dividing line. The geographic border between Europe and Asia does not follow any state boundaries and now only follows a few bodies of water. Turkey

3948-524: 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,

4089-809: The Carolingian Renaissance of the 9th century. From that time, the term designated the sphere of influence of the Western Church , as opposed to both the Eastern Orthodox churches and to the Islamic world . A cultural definition of Europe as the lands of Latin Christendom coalesced in the 8th century, signifying the new cultural condominium created through the confluence of Germanic traditions and Christian-Latin culture, defined partly in contrast with Byzantium and Islam , and limited to northern Iberia ,

4230-509: The Don (ancient Tanais ). But maps produced during the 16th to 18th centuries tended to differ in how to continue the boundary beyond the Don bend at Kalach-na-Donu (where it is closest to the Volga, now joined with it by the Volga–Don Canal ), into territory not described in any detail by the ancient geographers. Around 1715, Herman Moll produced a map showing the northern part of the Ob River and

4371-557: The European population at the time. The plague had a devastating effect on Europe's social structure; it induced people to live for the moment as illustrated by Giovanni Boccaccio in The Decameron (1353). It was a serious blow to the Roman Catholic Church and led to increased persecution of Jews , beggars and lepers . The plague is thought to have returned every generation with varying virulence and mortalities until

Beechcraft Model 17 Staggerwing - Misplaced Pages Continue

4512-638: 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

4653-508: The Greeks and Phoenicians gave rise to early Mediterranean cities. Early Iron Age Italy and Greece from around the 8th century BCE gradually gave rise to historical Classical antiquity, whose beginning is sometimes dated to 776 BCE, the year of the first Olympic Games . Ancient Greece was the founding culture of Western civilisation. Western democratic and rationalist culture are often attributed to Ancient Greece. The Greek city-state,

4794-684: 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,

4935-503: The Harmon Trophy for her achievement. Jackie Cochran set a women's speed record of 203.9 mph (328 km/h), established an altitude record of over 30,000 feet (9,144 m), and finished third in the 1937 Bendix Trophy Race, all in a special Model D17W Staggerwing. The aircraft made an impressive showing in the 1938 Bendix race, as well. In 1970, due to a dispute with the T-6 racing class,

5076-612: The Inquisition against heretics. In the Iberian Peninsula , the Reconquista concluded with the fall of Granada in 1492 , ending over seven centuries of Islamic rule in the south-western peninsula. In the east, a resurgent Byzantine Empire recaptured Crete and Cyprus from the Muslims, and reconquered the Balkans. Constantinople was the largest and wealthiest city in Europe from the 9th to

5217-764: The Iron Curtain , with NATO in the West and the Warsaw Pact in the East . This divide ended with the Revolutions of 1989 , the fall of the Berlin Wall , and the dissolution of the Soviet Union , which allowed European integration to advance significantly. European integration is being advanced institutionally since 1948 with the founding of the Council of Europe , and significantly through

5358-706: The Irtysh River , a major tributary of the Ob, as components of a series of partly-joined waterways taking the boundary between Europe and Asia from the Turkish Straits, and the Don River all the way to the Arctic Ocean. In 1721, he produced a more up to date map that was easier to read. However, his proposal to adhere to major rivers as the line of demarcation was never taken up by other geographers who were beginning to move away from

5499-595: 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

5640-532: The Mediterranean Sea —namely, Ceuta and Melilla —which are parts of Africa and share a border with Morocco. According to the current convention, Georgia and Azerbaijan are transcontinental countries where waterways have been completely replaced by mountains as the divide between continents. The first recorded usage of Eurṓpē as a geographic term is in the Homeric Hymn to Delian Apollo , in reference to

5781-680: The Megalithic Temples of Malta and Stonehenge , were constructed throughout Western and Southern Europe. The modern native populations of Europe largely descend from three distinct lineages: Mesolithic hunter-gatherers , descended from populations associated with the Paleolithic Epigravettian culture; Neolithic Early European Farmers who migrated from Anatolia during the Neolithic Revolution 9,000 years ago; and Yamnaya Steppe herders who expanded into Europe from

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5922-427: The Neandertal valley in Germany ) appeared in Europe 150,000 years ago (115,000 years ago it is found already in the territory of present-day Poland ) and disappeared from the fossil record about 40,000 years ago, with their final refuge being the Iberian Peninsula. The Neanderthals were supplanted by modern humans ( Cro-Magnons ), who seem to have appeared in Europe around 43,000 to 40,000 years ago. However, there

6063-419: 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

6204-432: The Pechenegs and the Cuman-Kipchaks , caused a massive migration of Slavic populations to the safer, heavily forested regions of the north, and temporarily halted the expansion of the Rus' state to the south and east. Like many other parts of Eurasia , these territories were overrun by the Mongols . The invaders, who became known as Tatars , were mostly Turkic-speaking peoples under Mongol suzerainty. They established

6345-409: The Pontic–Caspian steppe of Ukraine and southern Russia in the context of Indo-European migrations 5,000 years ago. The European Bronze Age began c. 3200 BCE in Greece with the Minoan civilisation on Crete , the first advanced civilisation in Europe. The Minoans were followed by the Myceneans , who collapsed suddenly around 1200 BCE, ushering the European Iron Age . Iron Age colonisation by

6486-406: The Serbian Principality (later Kingdom and Empire ), and the Duchy of Croatia (later Kingdom of Croatia ). To the east, Kievan Rus' expanded from its capital in Kiev to become the largest state in Europe by the 10th century. In 988, Vladimir the Great adopted Orthodox Christianity as the religion of state. Further east, Volga Bulgaria became an Islamic state in the 10th century, but

6627-437: 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

6768-426: The decline of the Roman Empire , Europe entered a long period of change arising from what historians call the " Age of Migrations ". There were numerous invasions and migrations amongst the Ostrogoths , Visigoths , Goths , Vandals , Huns , Franks , Angles , Saxons , Slavs , Avars , Bulgars , Vikings , Pechenegs , Cumans , and Magyars . Renaissance thinkers such as Petrarch would later refer to this as

6909-465: The fall of the Western Roman Empire in 476 CE, Christian consolidation of Europe in the wake of the Migration Period marked the European post-classical Middle Ages . The Italian Renaissance spread in the continent a new humanist interest in art and science which led to the modern era . Since the Age of Discovery , led by Spain and Portugal , Europe played a predominant role in global affairs with multiple explorations and conquests around

7050-432: The last glacial period ended about 10,000 years ago. Earth is currently in an interglacial period of the Quaternary, called the Holocene . Homo erectus georgicus , which lived roughly 1.8 million years ago in Georgia , is the earliest hominin to have been discovered in Europe. Other hominin remains, dating back roughly 1 million years, have been discovered in Atapuerca , Spain . Neanderthal man (named after

7191-419: 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

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7332-517: The polis , was the fundamental political unit of classical Greece. In 508 BCE, Cleisthenes instituted the world's first democratic system of government in Athens . The Greek political ideals were rediscovered in the late 18th century by European philosophers and idealists. Greece also generated many cultural contributions: in philosophy , humanism and rationalism under Aristotle , Socrates and Plato ; in history with Herodotus and Thucydides ; in dramatic and narrative verse, starting with

7473-402: The "Dark Ages". Isolated monastic communities were the only places to safeguard and compile written knowledge accumulated previously; apart from this, very few written records survive. Much literature, philosophy, mathematics, and other thinking from the classical period disappeared from Western Europe, though they were preserved in the east, in the Byzantine Empire. While the Roman empire in

7614-461: The 12th centuries, with a population of approximately 400,000. The Empire was weakened following the defeat at Manzikert , and was weakened considerably by the sack of Constantinople in 1204 , during the Fourth Crusade . Although it would recover Constantinople in 1261, Byzantium fell in 1453 when Constantinople was taken by the Ottoman Empire . In the 11th and 12th centuries, constant incursions by nomadic Turkic tribes, such as

7755-401: The 12th to the 15th centuries, the Grand Duchy of Moscow grew from a small principality under Mongol rule to the largest state in Europe, overthrowing the Mongols in 1480, and eventually becoming the Tsardom of Russia . The state was consolidated under Ivan III the Great and Ivan the Terrible , steadily expanding to the east and south over the next centuries. The Great Famine of 1315–1317

7896-444: The 18th century. During this period, more than 100 plague epidemics swept across Europe. The Renaissance was a period of cultural change originating in Florence , and later spreading to the rest of Europe. The rise of a new humanism was accompanied by the recovery of forgotten classical Greek and Arabic knowledge from monastic libraries, often translated from Arabic into Latin . The Renaissance spread across Europe between

8037-463: The 450 horsepower (336 kilowatt ) Pratt & Whitney R-985 engine. After the war's end, Beech immediately converted its manufacturing capabilities back to civil aircraft production, making one final version of the Staggerwing, the Model G17S. They built 16 aircraft, which they sold for US$ 29,000 apiece. Norway sold one D17S to Finland in 1949, which the Finnish Air Force used from 1950 to 1958. The lightweight V-tail Beechcraft Bonanza ,

8178-400: The 50 years of peace that followed are known as Golden Age of Athens , the seminal period of ancient Greece that laid many of the foundations of Western civilisation. Greece was followed by Rome , which left its mark on law , politics , language , engineering , architecture , government , and many more key aspects in western civilisation. By 200 BCE, Rome had conquered Italy and over

8319-411: The April 2007 issue of AOPA Pilot magazine, it was reported that the Staggerwing was voted by nearly 3000 AOPA members as the Most Beautiful Airplane. "Members said it's the perfect balance between 'muscular strength and delicate grace,' and rated it highly for its 'classic lines and symmetry.'" The November 2012 issue of Aviation History magazine ranked the Staggerwing fifth in their top 12 list of

8460-421: The British Isles, France, Christianised western Germany, the Alpine regions and northern and central Italy. The concept is one of the lasting legacies of the Carolingian Renaissance : Europa often figures in the letters of Charlemagne's court scholar, Alcuin . The transition of Europe to being a cultural term as well as a geographic one led to the borders of Europe being affected by cultural considerations in

8601-400: 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

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8742-417: 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

8883-448: The Don altogether, following the Greater Caucasus watershed to the Caspian. The question was still treated as a "controversy" in geographical literature of the 1860s, with Douglas Freshfield advocating the Caucasus crest boundary as the "best possible", citing support from various "modern geographers". In Russia and the Soviet Union , the boundary along the Kuma–Manych Depression was the most commonly used as early as 1906. In 1958,

9024-427: The Early Middle Ages, and soon spread throughout Europe. A struggle for influence between the nobility and the monarchy in England led to the writing of Magna Carta and the establishment of a parliament . The primary source of culture in this period came from the Roman Catholic Church . Through monasteries and cathedral schools , the Church was responsible for education in much of Europe. The Papacy reached

9165-452: The East, especially relating to areas under Byzantine, Ottoman, and Russian influence. Such questions were affected by the positive connotations associated with the term Europe by its users. Such cultural considerations were not applied to the Americas, despite their conquest and settlement by European states. Instead, the concept of "Western civilization" emerged as a way of grouping together Europe and these colonies. The question of defining

9306-430: 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

9447-421: The Frankish tribes were united under Clovis I . Charlemagne , a Frankish king of the Carolingian dynasty who had conquered most of Western Europe, was anointed " Holy Roman Emperor " by the Pope in 800. This led in 962 to the founding of the Holy Roman Empire , which eventually became centred in the German principalities of central Europe. East Central Europe saw the creation of the first Slavic states and

9588-457: 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

9729-486: 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

9870-404: The Great 's efforts to make Russia more European, ignored the whole boundary question with his claim that neither Russia, Scandinavia, northern Germany, nor Poland were fully part of Europe. Since then, many modern analytical geographers like Halford Mackinder have declared that they see little validity in the Ural Mountains as a boundary between continents. The mapmakers continued to differ on

10011-427: The Levant and North Africa and making inroads into Asia Minor . In the mid-7th century, following the Muslim conquest of Persia , Islam penetrated into the Caucasus region. Over the next centuries Muslim forces took Cyprus , Malta , Crete , Sicily , and parts of southern Italy . Between 711 and 720, most of the lands of the Visigothic Kingdom of Iberia were brought under Muslim rule—save for small areas in

10152-625: The Mediterranean Sea without the inclusion of any mountain ranges. Cartographer Herman Moll suggested in 1715 Europe was bounded by a series of partly-joined waterways directed towards the Turkish straits, and the Irtysh River draining into the upper part of the Ob River and the Arctic Ocean . In contrast, the present eastern boundary of Europe partially adheres to the Ural and Caucasus Mountains, which

10293-537: The Model 17 won the 1933 Texaco Trophy Race. In 1935, a British diplomat , Capt. H.L. Farquhar, successfully flew around the world in a Model B17R, traveling 21,332 miles (34,331 kilometers) from New York to London , by way of Siberia , Southeast Asia , the Middle East , North Africa and back across Europe . Louise Thaden and Blanche Noyes won the 1936 Bendix trophy in a Model C17R Staggerwing. Thaden also won

10434-549: The Reno National Air Races invited five Staggerwings to perform a demonstration race. Two G models and two D17 models raced. The five pilots were Bryant Morris, Bert Jensen, Don Clark, Noel Gourselle, and Phil Livingston, the only pilot to have prior racing experience in the T-6 class. The race was flawless, with ABC Wide World of Sports coverage, but protesting T-6 racers prevented the class from future competition with allegations of safety issues. As World War II loomed,

10575-762: The Soviet Geographical Society formally recommended that the boundary between the Europe and Asia be drawn in textbooks from Baydaratskaya Bay , on the Kara Sea , along the eastern foot of Ural Mountains, then following the Ural River until the Mugodzhar Hills , and then the Emba River ; and Kuma–Manych Depression, thus placing the Caucasus entirely in Asia and the Urals entirely in Europe. The Flora Europaea adopted

10716-500: The Tanais (the modern Don River) as the boundary. The Roman Empire did not attach a strong identity to the concept of continental divisions. However, following the fall of the Western Roman Empire , the culture that developed in its place , linked to Latin and the Catholic church, began to associate itself with the concept of "Europe". The term "Europe" is first used for a cultural sphere in

10857-567: The UK double "l" spelling) through the Lend-Lease arrangement to fill its own critical need for light personnel transports . The production UC-43 differed in minor details from the service test YC-43. Two distinguishing external features of the UC-43 are the circular automatic direction finder antennae mounted between the main landing gear and landing lights near the lower wingtips. They were all powered by

10998-1005: The Worlds Most Beautiful Airplanes. Stating that "Some might think 'the Stag' ungainly, backward wings and all, yet it has become the prime example of vintage beauty" and "...the aftward upper wing led to the big, steeply raked windscreen that is also a key element of what some have called an art deco classic." Numbers operated from Many Staggerwings remain registered with the FAA in flyable condition, or undergoing restoration. Several military versions are on display. Data from Jane's Fighting Aircraft of World War II General characteristics Performance 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

11139-486: The adoption of Christianity ( c. 1000 CE) . The powerful West Slavic state of Great Moravia spread its territory all the way south to the Balkans, reaching its largest territorial extent under Svatopluk I and causing a series of armed conflicts with East Francia . Further south, the first South Slavic states emerged in the late 7th and 8th century and adopted Christianity : the First Bulgarian Empire ,

11280-607: The ailerons and wings. The CAA Bureau of Safety Regulation initially issued an edict to restrict maximum airspeed and instrument flight , which was later replaced by a safety bulletin requiring lead balance weights to be added to the ailerons and flaps, and plywood panels to the outboard portion of the wings to increase torsional stiffness of the wing tip section. Sales began slowly. The first Staggerwings' high price tag (between US$ 14,000 and $ 17,000, depending on engine size) scared off potential buyers in an already depressed civil aircraft market. Only 18 Model 17s were sold during 1933,

11421-497: The airplane designer Ted A. Wells from Curtiss-Wright, and the first project of the new company was the Model 17, a fast biplane with an enclosed cabin designed to meet the needs of business executives. It was based on a design drafted by Wells while at Curtiss-Wright, but rejected by the Curtiss-Wright board. The Beechcraft Model 17, popularly known as the "Staggerwing", was first flown on November 4, 1932. During its heyday, it

11562-625: The basis of many modern legal systems, funded the construction of the Hagia Sophia and brought the Christian church under state control. From the 7th century onwards, as the Byzantines and neighbouring Sasanid Persians were severely weakened due to the protracted, centuries-lasting and frequent Byzantine–Sasanian wars , the Muslim Arabs began to make inroads into historically Roman territory, taking

11703-407: 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

11844-556: The boundary between the lower Don and Samara well into the 19th century. The 1745 atlas published by the Russian Academy of Sciences has the boundary follow the Don beyond Kalach as far as Serafimovich before cutting north towards Arkhangelsk , while other 18th- to 19th-century mapmakers such as John Cary followed Strahlenberg's prescription. To the south, the Kuma–Manych Depression was identified c.  1773 by

11985-682: The commercial model. To meet urgent wartime needs, the government also purchased or leased (impressed) additional "Staggerwings" from private owners, including 118 more for the Army Air Force plus others for the United States Navy . In Navy service, the airplanes were designated as GB-1 and GB-2 (under USN designating convention signifying General (purpose), Beech , 1st or 2nd variant of type). The British Royal Air Force and Royal Navy acquired 106 "Traveller Mk. I" (the British name uses

12126-598: 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

12267-569: The continent The prevalent definition of Europe as a geographical term has been in use since the mid-19th century. Europe is taken to be bounded by large bodies of water to the north, west and south; Europe's limits to the east and north-east are usually taken to be the Ural Mountains , the Ural River , and the Caspian Sea ; to the south-east, the Caucasus Mountains , the Black Sea , and

12408-561: The continent. Chinese, for example, uses the word Ōuzhōu ( 歐洲 / 欧洲 ), which is an abbreviation of the transliterated name Ōuluóbā zhōu ( 歐羅巴洲 ) ( zhōu means "continent"); a similar Chinese-derived term Ōshū ( 欧州 ) is also sometimes used in Japanese such as in the Japanese name of the European Union, Ōshū Rengō ( 欧州連合 ) , despite the katakana Yōroppa ( ヨーロッパ ) being more commonly used. In some Turkic languages,

12549-621: The continents as the lands given by Noah to his three sons; Europe was defined as stretching from the Pillars of Hercules at the Strait of Gibraltar , separating it from Northwest Africa , to the Don, separating it from Asia. The convention received by the Middle Ages and surviving into modern usage is that of the Roman era used by Roman-era authors such as Posidonius , Strabo , and Ptolemy , who took

12690-616: The development of major commercial routes along the coast of the Mediterranean and Baltic Seas . The growing wealth and independence acquired by some coastal cities gave the Maritime Republics a leading role in the European scene. The Middle Ages on the mainland were dominated by the two upper echelons of the social structure: the nobility and the clergy. Feudalism developed in France in

12831-470: 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

12972-542: 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,

13113-635: The end of the 18th century, gave rise to radical economic, cultural, and social change in Western Europe and eventually the wider world. Both world wars began and were fought to a great extent in Europe, contributing to a decline in Western European dominance in world affairs by the mid-20th century as the Soviet Union and the United States took prominence and competed over dominance in Europe and globally. The resulting Cold War divided Europe along

13254-570: The epic poems of Homer ; in drama with Sophocles and Euripides ; in medicine with Hippocrates and Galen ; and in science with Pythagoras , Euclid , and Archimedes . In the course of the 5th century BCE, several of the Greek city states would ultimately check the Achaemenid Persian advance in Europe through the Greco-Persian Wars , considered a pivotal moment in world history, as

13395-437: The first year of production, but sales steadily increased. Each Staggerwing was custom-built by hand. The luxurious cabin, trimmed in leather and mohair , held up to five passengers. Eventually, the Staggerwing captured a substantial share of the passenger aircraft market. By the start of World War II, Beechcraft had sold more than 424 Model 17s. The Staggerwing's speed made it popular with 1930s air racers. An early version of

13536-514: The following two centuries it conquered Greece , Hispania ( Spain and Portugal ), the North African coast, much of the Middle East , Gaul ( France and Belgium ), and Britannia ( England and Wales ). Expanding from their base in central Italy beginning in the third century BCE, the Romans gradually expanded to eventually rule the entire Mediterranean basin and Western Europe by the turn of

13677-416: 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

13818-624: The height of its power during the High Middle Ages. An East-West Schism in 1054 split the former Roman Empire religiously, with the Eastern Orthodox Church in the Byzantine Empire and the Roman Catholic Church in the former Western Roman Empire. In 1095 Pope Urban II called for a crusade against Muslims occupying Jerusalem and the Holy Land . In Europe itself, the Church organised

13959-598: The hind limbs could not have opened out sideways but in flight would have hung below and slightly behind the fore limbs. Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere . It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east. Europe shares

14100-499: The idea of water boundaries as the only legitimate divides between Europe and Asia. Four years later, in 1725, Philip Johan von Strahlenberg was the first to depart from the classical Don boundary. He drew a new line along the Volga , following the Volga north until the Samara Bend , along Obshchy Syrt (the drainage divide between the Volga and Ural Rivers ), then north and east along

14241-571: The landmass of Eurasia with Asia, and of Afro-Eurasia with both Asia and Africa . Europe is commonly considered to be separated from Asia by the watershed of the Ural Mountains , the Ural River , the Caspian Sea , the Greater Caucasus , the Black Sea , and the waterway of the Bosporus Strait . Europe covers about 10.18 million km (3.93 million sq mi), or 2% of Earth's surface (6.8% of land area), making it

14382-589: The latter waterway to its source in the Ural Mountains . At this point he proposed that mountain ranges could be included as boundaries between continents as alternatives to nearby waterways. Accordingly, he drew the new boundary north along Ural Mountains rather than the nearby and parallel running Ob and Irtysh rivers. This was endorsed by the Russian Empire and introduced the convention that would eventually become commonly accepted. However, this did not come without criticism. Voltaire , writing in 1760 about Peter

14523-612: 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–),

14664-519: 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,

14805-689: The mid-1930s, Beech undertook a major redesign of the aircraft, to create the Model D17 Staggerwing . The D17 featured a lengthened fuselage that improved the aircraft's handling characteristics by increasing control leverage, and the ailerons were relocated to the upper wings, eliminating interference with the flaps . Braking was improved with a foot-operated brake linked to the rudder pedals. Between April 1936 through May 1940 there were six Model 17 fatal accidents involving midair breakups that were attributed to weather conditions and structural failures, later determined to be caused by flutter of

14946-567: The millennium. The Roman Republic ended in 27 BCE, when Augustus proclaimed the Roman Empire . The two centuries that followed are known as the pax romana , a period of unprecedented peace, prosperity and political stability in most of Europe. The empire continued to expand under emperors such as Antoninus Pius and Marcus Aurelius , who spent time on the Empire's northern border fighting Germanic , Pictish and Scottish tribes. Christianity

15087-561: 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

15228-588: 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

15369-687: The northwest ( Asturias ) and largely Basque regions in the Pyrenees . This territory, under the Arabic name Al-Andalus , became part of the expanding Umayyad Caliphate . The unsuccessful second siege of Constantinople (717) weakened the Umayyad dynasty and reduced their prestige. The Umayyads were then defeated by the Frankish leader Charles Martel at the Battle of Poitiers in 732, which ended their northward advance. In

15510-479: The originally Persian name Frangistan ("land of the Franks ") is used casually in referring to much of Europe, besides official names such as Avrupa or Evropa . Clickable map of Europe, showing one of the most commonly used continental boundaries Key: blue : states which straddle the border between Europe and Asia ; green : countries not geographically in Europe, but closely associated with

15651-483: 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

15792-444: The poetry devoted to it. An alternative view is that of Robert Beekes , who has argued in favour of a pre-Indo-European origin for the name, explaining that a derivation from eurus would yield a different toponym than Europa. Beekes has located toponyms related to that of Europa in the territory of ancient Greece, and localities such as that of Europos in ancient Macedonia . There have been attempts to connect Eurṓpē to

15933-473: The realisation of the European Union (EU), which represents today the majority of Europe. The European Union is a supranational political entity that lies between a confederation and a federation and is based on a system of European treaties . The EU originated in Western Europe but has been expanding eastward since the dissolution of the Soviet Union in 1991. A majority of its members have adopted

16074-424: 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

16215-634: 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

16356-563: The remote regions of north-western Iberia and the middle Pyrenees the power of the Muslims in the south was scarcely felt. It was here that the foundations of the Christian kingdoms of Asturias , Leon , and Galicia were laid and from where the reconquest of the Iberian Peninsula would start. However, no coordinated attempt would be made to drive the Moors out. The Christian kingdoms were mainly focused on their own internal power struggles. As

16497-425: The second-smallest continent (using the seven-continent model ). Politically, Europe is divided into about fifty sovereign states , of which Russia is the largest and most populous , spanning 39% of the continent and comprising 15% of its population. Europe had a total population of about 745 million (about 10% of the world population ) in 2021; the third-largest after Asia and Africa. The European climate

16638-700: 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

16779-525: The state of the Golden Horde with headquarters in Crimea, which later adopted Islam as a religion, and ruled over modern-day southern and central Russia for more than three centuries. After the collapse of Mongol dominions, the first Romanian states (principalities) emerged in the 14th century: Moldavia and Walachia . Previously, these territories were under the successive control of Pechenegs and Cumans. From

16920-415: 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

17061-665: 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

17202-400: 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

17343-407: The waterways connecting the Black Sea to the Mediterranean Sea . Islands are generally grouped with the nearest continental landmass, hence Iceland is considered to be part of Europe, while the nearby island of Greenland is usually assigned to North America , although politically belonging to Denmark. Nevertheless, there are some exceptions based on sociopolitical and cultural differences. Cyprus

17484-445: The west and the north, transmitting newly acquired skills in producing copper artifacts. In Western Europe the Neolithic period was characterised not by large agricultural settlements but by field monuments, such as causewayed enclosures , burial mounds and megalithic tombs . The Corded Ware cultural horizon flourished at the transition from the Neolithic to the Chalcolithic . During this period giant megalithic monuments, such as

17625-416: The west continued to decline, Roman traditions and the Roman state remained strong in the predominantly Greek-speaking Eastern Roman Empire , also known as the Byzantine Empire . During most of its existence, the Byzantine Empire was the most powerful economic, cultural, and military force in Europe. Emperor Justinian I presided over Constantinople's first golden age: he established a legal code that forms

17766-399: The western shore of the Aegean Sea . As a name for a part of the known world, it is first used in the 6th century BCE by Anaximander and Hecataeus . Anaximander placed the boundary between Asia and Europe along the Phasis River (the modern Rioni River on the territory of Georgia ) in the Caucasus, a convention still followed by Herodotus in the 5th century BCE. Herodotus mentioned that

17907-419: The widespread use of pottery—began around 7000 BCE in Greece and the Balkans , probably influenced by earlier farming practices in Anatolia and the Near East . It spread from the Balkans along the valleys of the Danube and the Rhine ( Linear Pottery culture ), and along the Mediterranean coast ( Cardial culture ). Between 4500 and 3000 BCE, these central European neolithic cultures developed further to

18048-434: 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

18189-421: 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

18330-411: The world had been divided by unknown persons into three parts—Europe, Asia, and Libya (Africa)—with the Nile and the Phasis forming their boundaries—though he also states that some considered the River Don , rather than the Phasis, as the boundary between Europe and Asia. Europe's eastern frontier was defined in the 1st century by geographer Strabo at the River Don. The Book of Jubilees described

18471-410: The world. The place name Evros was first used by the ancient Greeks to refer to their northernmost province, which bears the same name today. The principal river there – Evros (today's Maritsa ) – flows through the fertile valleys of Thrace , which itself was also called Europe, before the term meant the continent. In classical Greek mythology , Europa ( Ancient Greek : Εὐρώπη , Eurṓpē )

18612-452: The world. Between the 16th and 20th centuries, European powers colonised at various times the Americas , almost all of Africa and Oceania , and the majority of Asia. The Age of Enlightenment , the French Revolution , and the Napoleonic Wars shaped the continent culturally, politically, and economically from the end of the 17th century until the first half of the 19th century. The Industrial Revolution , which began in Great Britain at

18753-422: Was legalised by Constantine I in 313 CE after three centuries of imperial persecution . Constantine also permanently moved the capital of the empire from Rome to the city of Byzantium (modern-day Istanbul ) which was renamed Constantinople in his honour in 330 CE. Christianity became the sole official religion of the empire in 380 CE, and in 391–392 CE the emperor Theodosius outlawed pagan religions. This

18894-399: Was a Phoenician princess. One view is that her name derives from the Ancient Greek elements εὐρύς ( eurús ) 'wide, broad', and ὤψ ( ōps , gen. ὠπός , ōpós ) 'eye, face, countenance', hence their composite Eurṓpē would mean 'wide-gazing' or 'broad of aspect'. Broad has been an epithet of Earth herself in the reconstructed Proto-Indo-European religion and

19035-428: Was eventually absorbed into Russia several centuries later. The period between the year 1000 and 1250 is known as the High Middle Ages , followed by the Late Middle Ages until c. 1500. During the High Middle Ages the population of Europe experienced significant growth, culminating in the Renaissance of the 12th century . Economic growth, together with the lack of safety on the mainland trading routes, made possible

19176-462: Was in exile in London after the German invasion of the Netherlands . He used it for refugee work in and around London. The Beech UC-43 Traveler was a slightly modified version of the Staggerwing. In late 1938, the United States Army Air Corps purchased three Model D17Ss to evaluate them for use as light liaison aircraft . These were designated YC-43 ( Y designating a development aircraft or non-standard type, C standing for Cargo ). After

19317-410: Was later found to have negligible effect). The fabric-covered fuselage was faired with wood formers and stringers over a welded, steel tube frame. Construction was complex and took many man-hours to complete. The Staggerwing's retractable conventional landing gear , uncommon at that time, combined with careful streamlining, light weight, and a powerful radial engine , helped it perform well. In

19458-404: 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

19599-495: Was the first crisis that would strike Europe in the late Middle Ages. The period between 1348 and 1420 witnessed the heaviest loss. The population of France was reduced by half. Medieval Britain was afflicted by 95 famines, and France suffered the effects of 75 or more in the same period. Europe was devastated in the mid-14th century by the Black Death , one of the most deadly pandemics in human history which killed an estimated 25 million people in Europe alone—a third of

19740-400: Was used as an executive aircraft, much as the private jet is now, and its primary competition were the Waco Custom Cabin and Waco Standard Cabin series of biplanes. The Model 17's unusual negative stagger wing configuration (the upper wing staggered behind the lower) and unique shape maximized pilot visibility and was intended to reduce interference drag between the wings (although it

19881-457: 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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