NIVO
   HOME
*



picture info

NIVO
NIVO, abbreviated from Night Invisible Varnish Orfordness (or "Night Varnish Orfordness"), was a dark grey-green overall finish applied to British night bomber aircraft in the inter-war period (1918-1939). Developed in 1918 by the experimental station at Orford Ness, as a low-visibility colouring for the Royal Air Force it had a sheen to match that of open water on a moonlit night. It was applied to aircraft from 1918 and was used on the Vickers Virginia, Handley Page Hyderabad, Handley Page Hinaidi, Handley Page Heyfords and Fairey Hendon bombers. By the mid 1930s, tests had determined that the varnish was too reflective when searchlights were shone on it. NIVO was phased out in the late 1930s, and had been discontinued by the time of the arrival of the new British medium bombers - the Vickers Wellington, Handley Page Hampden and Armstrong Whitworth Whitley The Armstrong Whitworth A.W.38 Whitley was a British medium bomber aircraft of the 1930s. It was one of ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Orford Ness
Orford Ness is a cuspate foreland shingle spit on the Suffolk coast in Great Britain, linked to the mainland at Aldeburgh and stretching along the coast to Orford and down to North Weir Point, opposite Shingle Street. It is divided from the mainland by the River Alde, and was formed by longshore drift along the coast. The material of the spit comes from places further north, such as Dunwich. Near the middle point of its length, at the foreland point or 'Ness', once stood Orfordness Lighthouse, demolished in summer 2020 owing to the encroaching sea. In the name of the lighthouse (and the radio transmitting station – see below), 'Orfordness' is written as one word. Description Orford Ness is an internationally important site for nature conservation. It contains a significant portion of the European reserve of vegetated shingle habitat, which is internationally scarce, highly fragile, and very easily damaged. Together with Havergate Island the site is a designated National Na ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many List of islands of the United Kingdom, smaller islands within the British Isles. Northern Ireland shares Republic of Ireland–United Kingdom border, a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is , with an estimated 2020 population of more than 67 million people. The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Night Bomber
A night bomber is a bomber aircraft intended specifically for carrying out bombing missions at night. The term is now mostly of historical significance. Night bombing began in World War I and was widespread during World War II. A number of modern aircraft types are designed primarily for nighttime bombing, but air forces no longer refer to them as night bombers. More common terms today include interdictor and strike fighter, and such aircraft tend to have all-weather, day-or-night capabilities. World War I Strategic bombing and night bombing were new in World War I, and there was much experimentation at night with aircraft such as the Gotha G.IV, Gotha G.V, Handley Page Type O, and various giant airplanes such as the Riesenflugzeuge and the Sikorsky Ilya Muromets. Navigation was difficult and precision was almost nonexistent but the psychological effect was strong. Night bombing worked as a terror weapon. Prior to the introduction of radar, aircraft flying at night were nearly ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Hendon 190913 Vickers Vimy 01
Hendon is an urban area in the Borough of Barnet, North-West London northwest of Charing Cross. Hendon was an ancient manor and parish in the county of Middlesex and a former borough, the Municipal Borough of Hendon; it has been part of Greater London since 1965. Hendon falls almost entirely within the NW4 postcode, while the West Hendon part falls in NW9. Colindale to the north-west was once considered part of Hendon but is today separated by the M1 motorway. The district is most famous for the London Aerodrome which later became the RAF Hendon; from 1972 the site of the RAF station was gradually handed over to the RAF Museum. The railways reached Hendon in 1868 with Hendon station on the Midland Main Line, followed by the London Underground further east under the name Hendon Central in 1923. Brent Street emerged as its commercial centre by the 1890s. A social polarity was developed between the uphill areas of Hendon and the lowlands around the railway station. Hendon is ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Royal Air Force
The Royal Air Force (RAF) is the United Kingdom's air and space force. It was formed towards the end of the First World War on 1 April 1918, becoming the first independent air force in the world, by regrouping the Royal Flying Corps (RFC) and the Royal Naval Air Service (RNAS). Following the Allied victory over the Central Powers in 1918, the RAF emerged as the largest air force in the world at the time. Since its formation, the RAF has taken a significant role in British military history. In particular, it played a large part in the Second World War where it fought its most famous campaign, the Battle of Britain. The RAF's mission is to support the objectives of the British Ministry of Defence (MOD), which are to "provide the capabilities needed to ensure the security and defence of the United Kingdom and overseas territories, including against terrorism; to support the Government's foreign policy objectives particularly in promoting international peace and security". ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Vickers Virginia
The Vickers Virginia was a biplane heavy bomber of the British Royal Air Force, developed from the Vickers Vimy. Design and development Work on the Virginia was started in 1920, as a replacement for the Vimy. Two prototypes were ordered on 13 January 1921 and another two prototypes were ordered in September 1922.Jarrett ''Aeroplane Monthly'' May 1993, p. 25. The Virginia was similar to the Vimy but notably had a lowered front gunner's pulpit to allow the pilot a greater field of view, 20 ft (6 m) greater wingspan and a 9 ft (3 m) longer fuselage. The aircraft was powered by twin Napier Lion engines and flew for the first time on 24 November 1922.Andrews and Morgan 1989, p. 131. At the Aircraft Experimental Establishment at RAF Martlesham Heath, the Virginia prototype underwent type trials. One of the first modifications was to replace the original two-bladed propellers with four-bladed propellers. An unusual set of "fighting top" turrets were added to the t ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  




Handley Page Hyderabad
The Handley Page H.P.24 Hyderabad was a twin-engine biplane heavy bomber designed and produced by the British aircraft manufacturer Handley Page. It holds the distinction of being the last wooden heavy bomber to be operated by the Royal Air Force (RAF). The Hyderabad was produced as a replacement night bomber for the RAF's Vickers Vimy and Airco DH.10 Amiens bombers. It was a derivative of the Handley Page W.8 airliner, having been originally envisioned to perform additional roles such as transporting troops and coastal patrol duties. It was one of the first large aircraft to be furnished with Handley Page leading edge slats. An order for a single prototype was received by the company on 13 January 1923, which performed its maiden flight during October of that same year. Proving itself superior to the rival Vickers Virginia, an initial order for 15 Hyderabad bombers was issued to Handley Page. It was introduced to service in 1925 as a front line bomber. A total of four sq ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Handley Page Hinaidi
The Handley Page Hinaidi was one of two twin-engine bombers built by Handley Page that served with the Royal Air Force between 1925 and 1935. The aircraft was developed from the Handley Page Hyderabad and named after Hinaidi, an RAF station in Iraq. Design and development In 1923, Handley Page designed and built a new heavy bomber based on its W.8 airliner, the Hyderabad. The Hyderabad was an all-wooden biplane powered by two Napier Lion engines.Jarrett 1993, pp. 19–20. Forty-five were built, entering service from 1925.Thetford 1993, pp. 19, 23. The Hinaidi was an improved version of the Hyderabad built to meet Air Ministry Specification 13/29. The first machine, the HP33 Hinaidi I -in fact an early production Hyderabad, J7745, with another engine and a change of fin and rudderClayton 1969, pp. 52–53.- first flew on 26 March 1927.Mason 1994, p.199. At least four Hyderabads were converted to Hinaidi Is, while six late-production Hyderabads were completed as Hinaidi Is, re ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Handley Page Heyford
The Handley Page Heyford was a twin-engine biplane bomber designed and produced by the British aircraft manufacturer Handley Page. It holds the distinction of being the last biplane heavy bomber to be operated by the Royal Air Force (RAF). The Heyford was developed in response to Specification B.19/27 for a new heavy night bomber. Much of the design can be attributed to the work of George Volkert, Handley Page's lead designer. Unlike the company's preceding aircraft, the Heyford comprised metal construction instead of wood; it also had an unorthodox arrangement wherein the fuselage was joined to the upper wing rather than the lower one, which gave the aircraft a relatively nose-high orientation while on the ground. Considerable revision of the proposal occurred even after its submission, which was recognised as the Air Ministry's preferred option. A sole prototype, designated ''Handley Page HP.38'', was produced, performing its maiden flight on 12 June 1930 and commencing servic ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Fairey Hendon
The Fairey Hendon was a British monoplane, heavy bomber of the Royal Air Force, designed by Fairey Aviation in the late 1920s. The aircraft served in small numbers with one squadron of the RAF between 1936 and 1939. It was the first all-metal low-wing monoplane to enter service with the RAF.Taylor 1974, p. 208. Development The Hendon was built to meet the Air Ministry Specification B.19/27 for a twin-engine night bomber to replace the Vickers Virginia, competing against the Handley Page Heyford and Vickers Type 150. The specification required a range of at a speed of , with a bomb load of .Taylor 1974, p. 209. To meet this requirement, Fairey designed a low-winged cantilever monoplane with a fixed tailwheel undercarriage. The fuselage had a steel tube structure with fabric covering with a pilot, a radio operator/navigator and three gunners, in open nose, dorsal and tail positions. Bombs were carried in a bomb bay in the fuselage centre. Variants powered by either radial engi ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Vickers Wellington
The Vickers Wellington was a British twin-engined, long-range medium bomber. It was designed during the mid-1930s at Brooklands in Weybridge, Surrey. Led by Vickers-Armstrongs' chief designer Rex Pierson; a key feature of the aircraft is its geodetic airframe fuselage structure, which was principally designed by Barnes Wallis. Development had been started in response to Air Ministry Specification B.9/32, issued in the middle of 1932, for a bomber for the Royal Air Force. This specification called for a twin-engined day bomber capable of delivering higher performance than any previous design. Other aircraft developed to the same specification include the Armstrong Whitworth Whitley and the Handley Page Hampden. During the development process, performance requirements such as for the tare weight changed substantially, and the engine used was not the one originally intended. The Wellington was used as a night bomber in the early years of the Second World War, performing as on ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Handley Page Hampden
The Handley Page HP.52 Hampden is a British twin-engine medium bomber that was operated by the Royal Air Force (RAF). It was part of the trio of large twin-engine bombers procured for the RAF, joining the Armstrong Whitworth Whitley and Vickers Wellington. The Hampden was powered by Bristol Pegasus radial engines but a variant known as the Handley Page Hereford had in-line Napier Daggers. The Hampden served in the early stages of the Second World War, bearing the brunt of the early bombing war over Europe, taking part in the first night raid on Berlin and the first 1,000-bomber raid on Cologne. When it became obsolete, after a period of mainly operating at night, it was retired from RAF Bomber Command service in late 1942. By 1943, the rest of the trio were being superseded by the larger four-engined heavy bombers such as the Avro Lancaster. Development Origins In 1932, the Air Ministry issued Specification B.9/32 seeking a twin-engined day bomber with higher performance t ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]