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De Schelde Scheldemusch
The de Schelde Scheldemusch was a single-seat pusher biplane designed in the Netherlands to be easy and safe to fly. It was one of the first light aircraft to use a tricycle undercarriage. Despite a sales campaign in the UK, only six were built, one being briefly tested by the RAF. A single example of a flying boat version, one of the smallest of this class, was also built. Design and development In 1935 the Dutch dockyard ''NV Koninklijke Maatschappij De Schelde'', based at Vlissingen (Flushing) on the Schelde (Scheldt) estuary moved into aircraft manufacture with the acquisition of the staff of the Pander Company. Under their designer Theodor E. Slot, de Schelde produced several different aircraft, the second of which was the Scheldemusch. In pre-war Dutch "musch" translated to English as "sparrow", though modern Dutch would use "mus" and the name sometimes appears as Scheldemus. It was also sometimes anglicized to Scheldt Sparrow. The unconventional appearance of the pusher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leading Edge Slot
A leading-edge slot is a fixed aerodynamic feature of the wing of some aircraft to reduce the stall speed and promote good low-speed handling qualities. A leading-edge slot is a spanwise gap in each wing, allowing air to flow from below the wing to its upper surface. In this manner they allow flight at higher angles of attack and thus reduce the stall speed. Purpose and development At an angle of attack above about 15° many airfoils enter the stall. Modification of such an airfoil with a fixed leading-edge slot can increase the stalling angle to between 22° and 25°.Clancy, L.J., ''Aerodynamics'', Section 6.9 Slots were first developed by Handley Page in 1919 and the first aircraft to fly with them was the experimental H.P.17, a modified Airco DH.9A. Their invention is credited jointly to Sir Frederick Handley Page and Gustav Lachmann. The first aircraft fitted with controllable slots was the Handley Page H.P.20. Licensing the design became one of Handley Page's major sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1930s Dutch Sport Aircraft
Year 193 ( CXCIII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Sosius and Ericius (or, less frequently, year 946 ''Ab urbe condita''). The denomination 193 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * January 1 – Year of the Five Emperors: The Roman Senate chooses Publius Helvius Pertinax, against his will, to succeed the late Commodus as Emperor. Pertinax is forced to reorganize the handling of finances, which were wrecked under Commodus, to reestablish discipline in the Roman army, and to suspend the food programs established by Trajan, provoking the ire of the Praetorian Guard. * March 28 – Pertinax is assassinated by members of the Praetorian Guard, who storm the imperial palace. The Empire is auctioned off ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Netherlands Naval Air Service
The Netherlands Naval Aviation Service ( nl, Marineluchtvaartdienst, shortened to MLD) is the naval aviation branch of the Royal Netherlands Navy. History World War I Although the MLD was formed in 1914, with the building of a seaplane base at De Mok, Texel, it developed slowly in the inter-war years due to limited budget. After the graduation of the first pilot group in 1915, on August 18, 1917, the MLD was founded under official decree and De Mok became the main base. At this time, the emphasis was on seaplane operations in the Dutch East Indies where Dornier Wal aircraft enabled patrols of the large archipelago in 1926. The perceived threat from Nazi Germany in the 1930s accelerated the development of air capability and the purchase of new equipment. World War II The German invasion of the Netherlands on May 10, 1940, rapidly overwhelmed Dutch resistance and the MLD aircraft were redeployed to France before the Dutch formally surrendered on 15 May. Shortly after, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dornier Do 24
The Dornier Do 24 is a 1930s German three-engine flying boat designed by the Dornier Flugzeugwerke for maritime patrol and search and rescue. A total of 279 were built among several factories from 1937 to 1945. Design and development The Dornier Do 24 was designed to meet a Royal Netherlands Navy requirement for a replacement of the Dornier Wals being used in the Dutch East Indies, with the Netherlands government signing a contract for six Dornier Do 24s on 3 August 1936. Two more prototypes were built for the German navy to be evaluated against the Blohm & Voss BV 138.Green and Swanborough ''Air Enthusiast'' April–July 1983, pp. 9–10. The Do 24 was an all-metal parasol monoplane with a broad-beamed hull and stabilising sponsons. Twin tails were mounted on the upswept rear of the hull, while three wing-mounted tractor configuration engines powered the aircraft. Fuel was carried in tanks in the sponsons and the wing centre section.Green and Swanborough ''Air Enthusiast'' A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravesend, Kent
Gravesend is a town in northwest Kent, England, situated 21 miles (35 km) east-southeast of Charing Cross (central London) on the south bank of the River Thames and opposite Tilbury in Essex. Located in the diocese of Rochester, it is the administrative centre of the Borough of Gravesham. Its geographical situation has given Gravesend strategic importance throughout the maritime and communications history of South East England. A Thames Gateway commuter town, it retains strong links with the River Thames, not least through the Port of London Authority Pilot Station and has witnessed rejuvenation since the advent of High Speed 1 rail services via Gravesend railway station. The station was recently refurbished and now has a new bridge. Toponymy Recorded as Gravesham in the Domesday Book of 1086 when it belonged to Odo, Earl of Kent and Bishop of Bayeux, the half-brother of William the Conqueror, its name probably derives from ''graaf-ham'': the home of the reeve or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sidcup
Sidcup is an area of south-east London, England, primarily in the London Borough of Bexley. It is south-east of Charing Cross, bordering the London Boroughs of London Borough of Bromley, Bromley and Royal Borough of Greenwich, Greenwich. Before the creation of Greater London in 1965, it was in the Historic counties of England, historical county of Kent. The name is thought to be derived from meaning "seat shaped or flat topped hill"; it had its earliest recorded use in 1254. The population of Sidcup, including its neighbourhoods Foots Cray, North Cray, Albany Park, Bexley, Albany Park, Longlands, Ruxley, Blackfen and Lamorbey, was 43,109 in 2011. History Origins Sidcup originated as a tiny hamlet on the road from Maidstone to London. According to Edward Hasted, "Thomas de Sedcopp was owner of this estate in the 35th year of king Henry VI of England, Henry VI. [i.e. in the 1450s] as appears by his deed." Hasted described Sidcup in the latter part of the 18th century as "a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Praga B2
The Praga B2 was a low powered aero engine suitable for very light aircraft. It dates from the mid-1930s. Design The Praga B2 was a dual ignition, air-cooled horizontal twin producing 40 horsepower (30 kW) aimed at lightweight aircraft. It was a higher compression version (6.7:1 from the earlier 5.72:1) of the original and otherwise very similar Praga B, which provided 36 hp (27 kW). Its cylinders were machined from alloy steel forgings and had aluminium alloy heads. The pistons were of aluminium alloy, with three compression rings and one scraper ring. The connecting rods were of nitrided steel, with divided big ends and bronze bushes at the little ends. The one piece crankshaft was also formed from nitrided steel and had two main roller bearings and a single ball thrust bearing. The single piece crankcase was cast from an aluminium alloy. 135 units in all, including B and B2 variants were built. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pander & Son
Pander & Son was a Dutch aircraft company based in The Hague, founded by Harmen Pander and his son Henk Pander. History Harmen Pander was the managing director of a furniture company which in 1924 bought the assets of the bankrupt ''Vliegtuig Industrie Holland'' (VIH) company, which included the services of designers Theodorus Egbert Slot and H. Van der Kwast. Pander set up the ''Nederlandse Fabriek van Vliegtuigen H. Pander & Zonen'' ("H. Pander and Son Dutch Aircraft Company") and began construction of an improved version of the VIH Holland H.2, renamed the Pander D. In 1929 the German sailplane builder Alexander Lippisch came to the Netherlands prompting Theo Slot to build the first Dutch glider in 1930. This aircraft, the P-1 ''Zögling'', was a copy of the Stamer and Lippisch Z-12 ''Zögling''. The company built a small number of trainer and sporting aircraft, perhaps the most well-known aircraft being the Pander S4 Postjager, designed by Theo Slot. The design was suggeste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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