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Cierva C.30
The Cierva C.30 is an autogyro designed by Juan de la Cierva and built under licence from the Cierva Autogiro Company by A V Roe & Co Ltd (Avro) as the Avro 671, Lioré-et-Olivier as the LeO C.301, and Focke-Wulf. Design and Development Before the experimental Cierva C.19 Mk V, autogyros had been controlled in the same way as fixed-wing aircraft, that is by deflecting the air flowing over moving surfaces such as ailerons, elevators and rudder. At the very low speeds encountered in autogyro flight, particularly during landing, these controls became ineffective. The experimental machine showed that the way forward was a tilting rotor hub fitted with a hanging stick extending to the pilot's cockpit with which he could change the rotor plane. This was known as direct control and was fitted to the C.30. The production variant, called C.30A in England, was preceded by several development machines. The first production design in the series was the C.30, a radial-engined autogyro wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cierva C
The Cierva Autogiro Company was a British firm established in 1926 to develop the autogyro. The company was set up to further the designs of Juan de la Cierva, a Spanish engineer and pilot, with the financial backing of James George Weir, a Scottish industrialist and aviator. History Juan de la Cierva's first British-built autogyro was the C.8 design. It and some other designs were built in conjunction with Avro. The pre-war Cierva C.30 proved popular. Nearly 150 were built under licence in the United Kingdom by Avro, in Germany by Focke-Wulf, and in France by Lioré-et-Olivier. On 9 December 1936, Cierva was killed in the Croydon KLM airliner accident when the aircraft in which he was a passenger crashed after taking off in fog. Dr. James Allan Jamieson Bennett was promoted to Chief Technical Officer of the company and remained in the position until leaving in 1939. In addition to making important contributions to autogyro controls while at Cierva Autogyro, Bennett carried ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seaplane Tender
A seaplane tender is a boat or ship that supports the operation of seaplanes. Some of these vessels, known as seaplane carriers, could not only carry seaplanes but also provided all the facilities needed for their operation; these ships are regarded by some as the first aircraft carriers and appeared just before the First World War. Terminology In maritime parlance a tender is a vessel that is used to support the operation of other vessels. In British usage, the term tender was used for small craft, with the term depot ship being used for large seagoing vessels. Flying boats and float planes even when based at home in ports and harbour had a need for small support vessels to operate.p British tenders were small craft of launch to pinnace size. These were used to ferry crews, stores and supplies between shore and the aircraft, to maintain the buoys used to mark out "taxiways" and "runways" and to keep these clear of debris to prevent foreign object damage, and in the case ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Old Sarum
Old Sarum Airfield is a grass strip airfield north-north-east of Salisbury, in Laverstock parish, Wiltshire, England. The adjacent areas are a mix of vacant land, residential and industrial sites. Residential areas lie to the south and east, occupying the old airfield married quarters and officers' mess, now known as Throgmorton Hall. Industrial/business units occupy a number of the First World War and Second World War airfield buildings, as well as several large modern warehouses, office blocks and car showrooms. Old Sarum is a well-preserved flying field of the First World War period, bounded by one of the most complete suites of technical and hangar buildings of the period. The site has three Grade II* listed hangars and a Grade II listed former workshop, all built in 1918, as well as a Grade II listed Territorial Army Headquarters (the 1935 Station Headquarters). The airfield was designated as a conservation area by Salisbury District Council in February 2007. An avi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
School Of Army Co-operation
The School of Land/Air Warfare was a Royal Air Force school based at Old Sarum in Wiltshire. Its purpose was to encourage greater co-operation between officers in the air and those on the ground. History The School was originally established at Old Sarum in 1920 as the School of Army Co-operation to provide training for air officers supporting troops on the ground. This became the School of Air Support in 1945 when its remit was broadened to cover assistance by air in amphibious operations. It was reformed again in May 1947, within No. 11 Group, as the School of Land/Air Warfare. In March 1963 it merged with the Amphibious Warfare School (formerly based at Poole) to form the Joint Warfare Establishment The Joint Warfare Establishment was a British military training establishment based at Old Sarum in Wiltshire. History The Joint Warfare Establishment was formed at Old Sarum in Wiltshire on 31 March 1963 when the School of Land/Air Warfare (for .... References {{DEFAULTS ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serial Number
A serial number (SN) is a unique identifier used to ''uniquely'' identify an item, and is usually assigned incrementally or sequentially. Despite being called serial "numbers", they do not need to be strictly numerical and may contain letters and other typographical symbols, or may consist entirely of a character (computing), character string (computer science), string. Applications of serial numbering Serial numbers identify otherwise identical individual units, thereby serving various practical uses. Serial numbers are a deterrent against theft and counterfeit products, as they can be recorded, and stolen or otherwise irregular goods can be identified. Banknotes and other transferable documents of value bear serial numbers to assist in preventing counterfeiting and tracing stolen ones. They are valuable in quality control, as once a defect is found in the production of a particular batch of product, the serial number will identify which units are affected. Some items with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helsinki
Helsinki () is the Capital city, capital and most populous List of cities and towns in Finland, city in Finland. It is on the shore of the Gulf of Finland and is the seat of southern Finland's Uusimaa region. About people live in the municipality, with million in the Helsinki capital region, capital region and million in the Helsinki metropolitan area, metropolitan area. As the most populous List of urban areas in Finland by population, urban area in Finland, it is the country's most significant centre for politics, education, finance, culture, and research. Helsinki is north of Tallinn, Estonia, east of Stockholm, Sweden, and west of Saint Petersburg, Russia. Helsinki has significant History of Helsinki, historical connections with these three cities. Together with the cities of Espoo, Vantaa and Kauniainen—and surrounding commuter towns, including the neighbouring municipality of Sipoo to the east—Helsinki forms a Helsinki metropolitan area, metropolitan are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tallinn
Tallinn is the capital city, capital and List of cities in Estonia, most populous city of Estonia. Situated on a Tallinn Bay, bay in north Estonia, on the shore of the Gulf of Finland of the Baltic Sea, it has a population of (as of 2025) and administratively lies in the Harju County, Harju ''Counties of Estonia, maakond'' (county). Tallinn is the main governmental, financial, industrial, and cultural centre of Estonia. It is located northwest of the country's second largest city, Tartu, however, only south of Helsinki, Finland; it is also west of Saint Petersburg, Russia, north of Riga, Latvia, and east of Stockholm, Sweden. From the 13th century until the first half of the 20th century, Tallinn was known in most of the world by variants of its other historical Names of Tallinn in different languages, name Reval. “Reval” received Lübeck law, Lübeck city rights in 1248; however, the earliest evidence of human settlement in the area dates back nearly 5,000 years. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riga
Riga ( ) is the capital, Primate city, primate, and List of cities and towns in Latvia, largest city of Latvia. Home to 591,882 inhabitants (as of 2025), the city accounts for a third of Latvia's total population. The population of Riga Planning Region, Riga metropolitan area, which stretches beyond the city limits, is estimated at 847,162 (as of 2025). The city lies on the Gulf of Riga at the mouth of the Daugava (river), Daugava river where it meets the Baltic Sea. Riga's territory covers and lies above sea level on a flat and sandy plain. Riga was founded in 1201, and is a former Hanseatic League member. Riga's historical centre is a UNESCO World Heritage Site, noted for its Art Nouveau/Jugendstil architecture and 19th century wooden architecture. Riga was the European Capital of Culture in 2014, along with Umeå in Sweden. Riga hosted the 2006 Riga summit, 2006 NATO Summit, the Eurovision Song Contest 2003, the 2013 World Women's Curling Championship, and the 2006 IIHF Wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaunas
Kaunas (; ) is the second-largest city in Lithuania after Vilnius, the fourth largest List of cities in the Baltic states by population, city in the Baltic States and an important centre of Lithuanian economic, academic, and cultural life. Kaunas was the largest city and the centre of a in the Duchy of Trakai of the Grand Duchy of Lithuania and Trakai Voivodeship, Trakai Palatinate since 1413. In the Russian Empire, it was the capital of the Kovno Governorate, Kaunas Governorate from 1843 to 1915. During the interwar period, it served as the temporary capital of Lithuania, when Vilnius was Polish–Lithuanian War, seized and controlled by Second Polish Republic, Poland between 1920 and 1939. During that period Kaunas was celebrated for its rich cultural and academic life, fashion, construction of countless Art Deco and Lithuanian National Revival architectural-style buildings as well as popular furniture, interior design of the time, and a widespread café culture. The city in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltic Sea
The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by the countries of Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden, and the North European Plain, North and Central European Plain regions. It is the world's largest brackish water basin. The sea stretches from 53°N to 66°N latitude and from 10°E to 30°E longitude. It is a Continental shelf#Shelf seas, shelf sea and marginal sea of the Atlantic with limited water exchange between the two, making it an inland sea. The Baltic Sea drains through the Danish straits into the Kattegat by way of the Øresund, Great Belt and Little Belt. It includes the Gulf of Bothnia (divided into the Bothnian Bay and the Bothnian Sea), the Gulf of Finland, the Gulf of Riga and the Bay of Gdańsk. The "Baltic Proper" is bordered on its northern edge, at latitude 60°N, by Åland and the Gulf of Bothnia, on its northeastern edge by the Gulf of Finland, on its eastern edge by the Gulf of Riga, and in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schneider Grunau Baby
The Schneider Grunau Baby is a single-seat sailplane first built in Germany in 1931, with some 6,000 examples constructed in some 20 countries. It was relatively easy to build from plans, it flew well, and the aircraft was strong enough to handle mild aerobatics and the occasional hard landing. When the Baby first appeared, it was accepted wisdom that the pilot should feel as much unimpeded airflow as possible, to better sense rising and falling currents of air and temperature changes etc. It was designed by Edmund Schneider with the assistance of Wolf Hirth and Hugo Kromer as a smaller version of Schneider's ESG 31 of the previous year, incorporating an elliptical wing design based on work done by Akaflieg Darmstadt. It was named after Grunau, the town where Schneider's factory was located, now Jeżów Sudecki in Poland. The first 14 inner ribs were of the Göttingen 535 shape with the outer ribs gradually changing up to the last 22nd rib, having a bi-convex and symmetrica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
