Editing Vickers Wellington (section)

==Variants==

===Bomber variants===
[[File:British WW2 medium bombers comparison.png|thumb|Scale [[comparison diagram]] of the trio of British twin-engined medium bombers at the outbreak of the Second World War: Wellington (blue), [[Handley Page Hampden]] (yellow) and [[Armstrong Whitworth Whitley]] (pink).]]
;Type 271: The first Wellington bomber prototype.

;Type 285 Wellington Mark I: One pre-production prototype. Powered by two [[Bristol Pegasus]] X radial piston engines.

;Type 290 Wellington Mark I: The first production version. Powered by two 1,000&nbsp;hp (750&nbsp;kW) Bristol Pegasus XVIII radial piston engines. Fitted with Vickers gun turrets, 183 built at Weybridge and Broughton in Flintshire.<ref name = "andrew 16"/>

;Type 408 Wellington Mark IA: Production version built to B Mark II specifications with provision for either Pegasus or [[Rolls-Royce Merlin]] engines, although only 1,000&nbsp;hp (750&nbsp;kW) Pegasus XVIII engines were used in practice.<ref>Andrews 1970, pp. 44–56.</ref> Main landing gear moved forward 3&nbsp;in (8&nbsp;cm). Fitted with [[Nash & Thompson]] gun turrets. 187 built at Weybridge and Broughton in Flintshire.<ref name = "andrew 16"/>

;Type 416 Wellington Mark IC: The first main production variant was the '''Mark IC''' which added waist guns to the Mark IA. A total of 2,685 were produced. The Mark IC had a crew of six: a pilot, radio operator, navigator/bomb aimer, observer/nose gunner, tail gunner and waist gunner. A total of 2,685 were built at Weybridge, Broughton in Flintshire and Blackpool.<ref name = "andrew 16"/>
[[File:Vickers Wellington Mk2.jpg|thumb|Merlin-engined Wellington Mark II of [[No. 104 Squadron RAF|No. 104 Sqn.]] The criss-cross geodetic construction can be seen through the perspex panels in the side of the fuselage.]]

;Type 406 Wellington Mark II: The '''B Mark II''' was identical to the Mark IC with the exception of the powerplant; using the 1,145&nbsp;hp (855&nbsp;kW) [[Rolls-Royce Merlin]] X engine instead. A total of 401 were produced at Weybridge.<ref name = "andrew 16"/>

;{{visible anchor|Type 417 Wellington B Mark III}}: The next significant variant was the '''B Mark III''' which featured the {{convert|1375|hp|kW|0|abbr=on}} [[Bristol Hercules]] III or XI engine and a four-gun tail turret, instead of two-gun. A total of 1,519 Mark IIIs were built, becoming mainstays of Bomber Command from late 1941 through into 1942, with all but the two prototypes being built at Broughton in Flintshire and at Blackpool.<ref name="vickp334-5">Andrews & Morgan 1988, pp. 334–335</ref><ref name="delp490">Delve 1998, pp. 49–50</ref> After trials in 1942, the Wellington III was cleared to tow Hotspur, Hadrian and Horsa gliders,<ref name="vickp334">Andrews & Morgan 1988, p. 334</ref> although this was observed to have an adverse effect on the geodetic structure.<ref name="bowp47">Bowyer 1986, p. 47</ref> The Wellington III was also seen over Salisbury Plain while towing Spitfires. This would have allowed Spitfire reinforcements for the defence of Malta to be towed from Gibraltar to within range of Malta before being released. Whether this was done is unconfirmed.<ref name="vickp334"/>

;Type 424 Wellington B Mark IV: The 220 '''B Mark IV''' Wellingtons used the 1,200&nbsp;hp (900&nbsp;kW) [[Pratt & Whitney Twin Wasp]] engine and were flown by two [[Polish Air Force|Polish]] and two [[RAAF]] squadrons. A total of 220 were built at Broughton in Flintshire.

;Type 442 Wellington B Mark VI: Pressurised with a long wingspan and 1,600&nbsp;hp (1,190&nbsp;kW) Merlin R6SM (60-series, two-stage) engines, 63 were produced and were operated by [[No. 109 Squadron RAF|109 Squadron]] and as [[Gee radio navigation]] trainers. A total of 63 were built at Weybridge. Fitted with Sperry bombsight.{{Sfn|Bowman|2011|p=123}} The B.VI's high-altitude fuselage design optimised for pressurisation had a solid, bullet-like nose with no nose turret, and a cockpit with an astrodome-like [[bubble canopy]]. The rear turret was a remotely operated FN.20 sighted from a dome in the cockpit.{{Efn|The original design included a pressurised rear turret but Parnall were not able to deliver the FN.70.}}<ref>Clarke 1993 p. 123</ref> This is the aircraft that spurred [[Rolls-Royce Limited|Rolls-Royce]] into developing the two-stage supercharged [[List of Rolls-Royce Merlin variants|Merlin 60-series]] engine.

;{{visible anchor|Type 440 Wellington B Mark X}}: The most widely produced variant of which 3,804 were built. It was similar to the Mark III except for the 1,675&nbsp;hp (1,250&nbsp;kW) Hercules XVIII powerplant. The Mark X was the basis for a number of [[Coastal Command]] versions. A total of 3,803 were built at Broughton in Flintshire and Blackpool.

===Coastal Command variants===
;Type 429 Wellington General Reconnaissance (GR) Mark VIII: Mark IC conversion for [[Coastal Command]] service. Roles included reconnaissance, anti-submarine and anti-shipping attack. A Coastal Command Wellington was the first aircraft to be fitted with the anti-submarine [[Leigh light]]. A total of 307 were built at Weybridge, 58 fitted with the Leigh light.

;Type 458 Wellington GR Mark XI: Maritime version of B Mark X with an ordinary nose turret and mast radar [[ASV Mark II radar]] no waist guns, 180 built at Weybridge and Blackpool.{{Sfn|Bowman|2011|p=60}}

;Type 455 Wellington GR Mark XII: Maritime version of B Mark X armed with [[torpedo]]es (two 18-inch carried under wings). Redesigned nose to accommodate centrimetric [[ASV Mark III radar]] which had a radome in the chin position rather use than external aerials. Twin flexible machine guns in a clear canopy replaced the front turret. Leigh light in bomb bay. Hercules VI or XVI engines. 58 built at Weybridge and Broughton in Flintshire.{{Sfn|Bowman|2011|p=60}}

;Type 466 Wellington GR Mark XIII: Maritime version of B Mark X with an ordinary nose turret and mast radar ASV Mark II instead of chin radome, no waist guns. Hercules XVII engines of 1,735&nbsp;hp. 844 built – 2 at Weybridge and rest at Blackpool.{{Sfn|Bowman|2011|p=62}}

;Type 467 Wellington GR Mark XIV: Maritime version of B Mark X with a chin radome housing the ASV Mark III [[radar]] and [[RP-3]] explosive [[rocket]] rails under the wings. Hercules XVII engines 841 built at Weybridge, Broughton and Blackpool.

===Transport variants===
;Wellington C Mark XV: Service conversions of the Wellington Mark IA into unarmed transport aircraft; able to carry up to 18 troops.

;Wellington C Mark XVI: Service conversions of the Wellington Mark IC into unarmed transport aircraft; able to carry up to 18 troops.

===Trainer variants===
;Type 487 Wellington T Mark XVII: Service conversion of a Wellington Mk XI bomber into nightfighter training aircraft with SCR720 Air Intercept radar in a bulbous nose and rear turret removed and faired over; powered by two Bristol Hercules XVII radial piston engines.{{Sfn|Bowman|2011|pp=62–63}}

;Type 490 Wellington T Mark XVIII: Production version. For training wireless operators and  navigators Powered by two Bristol Hercules XVI radial piston engines. A total of 80 were built at Blackpool, plus some conversions.{{Sfn|Bowman|2011|pp=62–63}}

;Wellington T Mark XIX: Service conversions of the Wellington Mark X used for bomber crew training;{{Sfn|Bowman|2011|pp=62–63}} remained in use as a trainer until 1953.

;Type 619 Wellington T Mark X: Postwar conversions of the Wellington Bomber into training aircraft by [[Boulton Paul]] in [[Wolverhampton]].<ref name = "WV MF628 history"/> For navigation training the front turret was removed and replaced by a fairing and the interior re-equipped.<ref name = "WV MF628 history"/> Some were sold to [[France]] and Greek [[Hellenic Air Force|Royal Hellenic Air Force]] (6) in 1946.<ref name=":2">Bowman 2011 pp. 123–124</ref>

===Experimental and conversion variants===
;Type 298 Wellington Mark II prototype: one aircraft L4250; powered by two 1,145&nbsp;hp (854&nbsp;kW) Rolls-Royce Merlin inline piston engines.

;Type 299 Wellington Mark III  prototype: two only.

;Type 410 Wellington Mark IV prototype: Serial R1220; powered by two Pratt & Whitney Twin Wasp radial piston engines.

;Type 416 Wellington (II): The original Wellington II prototype was converted with the installation of a 40&nbsp;mm (1.57&nbsp;in) [[Vickers S gun]] with predictor gunsight in the dorsal position. This was the planned armament to be mounted in the nose of the Vickers Type 414 twin-engined  fighter for which the Air Ministry raised specification F22.39. The armament was first flown on 25 October 1940 and test fired 8 November.{{Sfn|Buttler|2004|p=43}}

;Type 418 Wellington DWI (Detonation Without Impact) Mark I: Conversion of four Wellington Mark IAs to [[minesweeper (ship)|minesweeping]] aircraft for exploding magnetic mines. Fitted with Ford V-8 petrol engine and Mawdsley [[electrical generator]] to induce [[magnetic field]] in a {{convert|48|ft|m|abbr=on}} diameter loop mounted under fuselage. They had a solid nose with a bracket supporting the loop, which was also supported under the rear fuselage and the wings, outboard of the engines. DWI was also known as "Directional Wireless Installation" – to mislead the true purpose of the loop.

;Type 419 Wellington DWI Mark II: DWI Mark I aircraft upgraded by installation of [[de Havilland Gipsy Six]] engine for increased generation power. 11 aircraft were converted to this standard. They were operated by No. 1 General Reconnaissance Unit, RAF, sweeping mines in the Thames Estuary for a short time until the Royal Navy had an equivalent capability to sweep magnetic mines. The unit was transferred to Egypt for use in the Suez Canal.<ref>''From Bouncing Bombs to Concorde – The Authorised Biography of Aviation Pioneer Sir George Edwards OM'', Robert Gardner 2006, {{ISBN|0750943890}}, p. 28</ref>

;Type 407 and Type 421 Wellington Mark V : Second and first prototypes respectively: three were built, designed for pressurised, high-altitude operations using [[turbocharger|turbocharged]] Hercules VIII engines.

;Wellington Mark VI: One Wellington Mark V with Merlin 60-series engines, high-altitude prototype only.

;Type 449 Wellington Mark VIG: Production version of Type 431. Two aircraft were only built.

;Wellington Mark VII: Single aircraft, built as a testbed for the [[Vickers 40 mm Class S gun|40&nbsp;mm Vickers S gun]] turret.

;Type 435 Wellington Mark IC: conversion of one Wellington to test [[Turbinlite]] night interception searchlight.<ref name=":2" />

;Type 437 Wellington Mark IX: one Mark IC conversion for troop transport.

;Type 439 Wellington Mark II: one Wellington Mark II was converted with the installation of a 40&nbsp;mm Vickers S gun in the nose.<ref name=":2" />

;Type 443 Wellington Mark V: One Wellington used to test the Bristol Hercules VIII engine.<ref name=":2" />

;Type 445 Wellington (I): one Wellington was used to test the [[Power Jets W.2|Whittle W2B/23]] [[turbojet]] engine, the engine was fitted in the tail of the aircraft.

;Type 454 and Type 459 Wellington Mark IX: prototypes with ASV Mark II, ASV Mark III radars, and powered by two Bristol Hercules VI and XVI radial piston engines.

;Type 470 and Type 486 Wellington: Designations of two Wellington Mark II aircraft fitted with the Whittle W2B and W2/700 jet engines respectively.<ref name=":2" />

;Type 478 Wellington Mark X: one Wellington was used to test the Bristol Hercules 100 engine.<ref name=":2" />

;Type 602 Wellington Mark X: one Wellington was fitted with two [[Rolls-Royce Dart]] turboprop engines.

;Wellington Mark III: one Wellington was used for glider tug, for glider clearance for [[Waco CG-4|Waco Hadrian]], [[General Aircraft Hotspur]] and [[Airspeed Horsa]] gliders.

===Total built===
A total number of 11,461 aircraft is most often quoted.{{efn|According to Andrews & Morgan (1988); using their own data the total is 11,462.{{sfn|Andrews|Morgan|1988|p=363}}}} There is some question over several aircraft, the total may be a few either side of this figure. In combination, the Wellingtons and 846 Warwicks represent over 75 per cent of the total number of aircraft built by the Vickers-Armstrong company.<ref>Murray, 2012, p. 39.</ref>