| Virginia | |
|---|---|
| Virginia X in 1922 | |
| General information | |
| Type | Heavy night-bomber |
| Manufacturer | Vickers Limited |
| Primary user | Royal Air Force |
| Number built | 124 |
| History | |
| Introduction date | 1924 |
| First flight | 24 November 1922 |
| Retired | 1941 |
| Developed from | Vickers Vimy |
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The Vickers Virginia was a biplane heavy bomber of the British Royal Air Force, developed from the Vickers Vimy, and was the mainstay of the interwar RAF heavy night bombing force. [1]
The Vickers Virginia was designed to meet the requirements of Air Ministry specifications 1/21 for a long-range heavy bomber intended to replace the Vickers Vimy. [2]
Two prototypes were ordered on 13 January 1921, with an additional two prototypes ordered in September 1922. [3] The Virginia resembled the Vimy but notably had a lowered front gunner's position, providing the pilot with a greater field of view, 20 ft (6 m) greater wingspan and a 9 ft (3 m) longer fuselage. It was powered by two Napier Lion engines and flew for the first time on 24 November 1922. [4]
The Virginia prototype underwent type trials at the Aircraft Experimental Establishment at RAF Martlesham Heath at the end of 1922. One of the first modifications was the replacement of the original two-bladed propellers by four-bladed propellers. An unusual set of "fighting top" turrets was added to the upper wings, but these were later deleted from production aircraft. [5]
Vickers Virginia Marks I–VI had straight wings and retained the wooden framed wings and fuselages covered in canvas derived from the earlier Vickers Vimy. Starting with the Mark III, the Virginia had a rear fuselage gunner. Early Virginias had an internal bomb bay for eight 112 lb bombs (51 kg), or could be fitted with under-wing racks for two heavier 550 lb bombs (249 kg). [6]
In 1926, the Vickers Virginia Mk VII became the principal production version of the type. This version introduced 6-degree swept-back metal-framed outer wings while retaining the wooden fuselage, and the rear gunner was moved into a tail turret. They were powered by two 500 hp Napier Lion V engines. Eleven were newly built aircraft, and thirty-eight were converted from earlier marks. [7] [8]
The final major development of the Vickers Virginia series was the Mark X, introduced in 1929. This version adopted an all-metal airframe constructed from duralumin and steel, with covering panels of fabric, aluminium, and wood. They could carry a 3,000 lb bomb load (1,360 kg), and had top speed of 108 mph (174 km/h) at 5,000 ft (1,500 m), with a range of 985 miles (1,585 km). Defensive armament consisted of one Lewis gun in the nose and a twin Lewis gun in the tail. [6] 50 newly constructed Mark X aircraft and 53 surviving earlier models were converted or remanufactured to the Mark X standard. [7] [1]
A total of 126 Virginias were built across all variants, including 2 prototypes (Mark I & Mark II), 6 Mark III, 2 Mark IV, 22 Mark V, 25 Mark VI, 11 Mark VII, 8 Mark IX, and 50 Mark X. These figures are for newly built airframes, with earlier marks also being upgraded. [7]
No. 7 Squadron RAF was the first squadron to receive the Vickers Virginia Mark III in early 1924. [6] Despite mediocre performance, the aircraft served frontline units until 1938, replaced by the newer Wellingtons, Hampdens and Whitleys. Designs such as the Fairey Hendon and Handley Page Heyford both supplemented and replaced the Virginia.
The final Virginia Mark X was the most numerous RAF bomber until the Heyford in 1934. After its technical obsolescence as a bomber, it was used for photography and for parachute training, with jump platforms installed behind the engine nacelles.
The Vickers Virginia played an important role in early British autopilot research. At the Royal Aircraft Establishment (RAE), several Virginia Mk VII aircraft were used for experimental trials to develop automatic flight-control systems. [7] During one of these tests, Flight Lieutenant Langford-Sainsbury of No. 15 Squadron RAF experienced an uncontrolled dive when an early autopilot mechanism malfunctioned and could not be disconnected before the aircraft reached dangerously high speed. [1] By the time the final production Virginia Mk X entered RAF service in January 1928, a reliable and effective three-channel autopilot had been developed and was fitted to operational aircraft. No. 7 Squadron RAF was the first unit to receive Virginias equipped with these automatic pilots. [9]
In the 1930s, the Virginias were used in some of the first tests of inflight refueling, although they were never used outside of tests. [10]
In 1931 the Vickers Virginia Mark X was used in trials of land catapults for launching heavily laden bombers. [11]
On 26 June 1940, a committee discussing the need for airborne cannon for use against invading tanks suggested equipping Virginias with the equally antiquated COW 37 mm gun. This was not acted on.[ citation needed ]
The Virginia was developed in parallel with the Vickers Victoria transport aircraft and the two aircraft had much in common, sharing the same wing design. [12]
Despite their obsolescence, Virginias continued to soldier on in support roles with the Parachute Test Flight at Henlow until December 1941. [5]
Data fromThe British Bomber since 1914 [34]
General characteristics
Performance
Armament
Related development
Related lists