Avro York

Avro

Industry	Aerospace
Founded	1910 in United Kingdom
Founder	Alliott Verdon Roe
Headquarters	United Kingdom
Products	Aircraft

Template:Infobox aircraft

The Avro York was a British transport aircraft created by Avro amid the Second World War. Its design was closely based on the Avro Lancaster heavy bomber, sharing several components between the two models. Production of the York was initially slow due to the priority given to Lancaster manufacturing, but this shifted in 1944 when transport aircraft gained higher importance.

Between 1943 and 1964, the York operated in both military and commercial capacities with numerous users. In commercial aviation, the primary operators were British South American Airways (BSAA) and British Overseas Airways Corporation (BOAC). Militarily, many Yorks participated in air supply efforts during the Berlin Blockade of 1948–49. Several units also served as transports for prominent government figures; notable VIP passengers included British Prime Minister Winston Churchill, French General Charles de Gaulle, Governor-General of India Lord Mountbatten, and South African Prime Minister Jan Smuts.

Origins

In 1941, Avro decided to initiate development of a new civil transport aircraft. At a time when Britain's aviation industry was heavily focused on wartime production and advancing military aircraft capabilities, this undertaking was considered bold, especially since it began without formal government support. The motivation behind this project likely stemmed from a shortage of transport planes and the establishment of the British Overseas Airways Corporation (BOAC) in 1940 to manage the country's overseas civil air services. Nevertheless, according to aviation historian Donald Hannah, there was limited incentive and scarce resources for transport aircraft construction during the war, coupled with uncertainty about when civil aviation demand would resume.

Avro's chief designer, Roy Chadwick, anticipated a requirement for a four-engine transport capable of extended range flights. The design, labeled Type 685, originated from the company's recently developed four-engine bomber, the Avro Lancaster, which had its first flight earlier that year. The Type 685 combined elements from the Lancaster—such as its wings, tail unit, landing gear, and Rolls-Royce Merlin engines—with a newly designed square-section fuselage that doubled internal volume compared to the Lancaster. Despite these shared components, the two aircraft differed significantly in external appearance.

By February 1942, Chadwick had forwarded his plans to Avro's experimental division. Within five months, the design was refined and a prototype assembled. On 5 July 1942, the York prototype LV626 completed its inaugural flight from Ringway Airport near Manchester. Initially equipped with twin fins and rudders like the Lancaster, it became necessary to add a central third fin due to increased fuselage side area ahead of the wing to maintain adequate directional control; this triple-fin arrangement became standard on production models. Flight testing quickly moved to RAF Boscombe Down. Following positive evaluations of LV626, the Air Ministry commissioned three additional prototypes in various configurations along with an initial production series under Specification C.1/42, part of Operational Requirement OR.113 for a new transport aircraft.

These prototypes served to evaluate different modifications and potential uses for the type. The first prototype LV626 was converted to C.II standard, primarily featuring Bristol Hercules VI radial engines instead of Merlins; however, Merlin engines were ultimately standardized on production models, leaving this as the only Hercules-powered York. The fourth prototype LV639 was outfitted as a paratroop carrier with ventral drop doors. Flight tests revealed that the York was unsuitable for paratroop deployment because parachutes risked entanglement with the fixed tailwheel due to slipstream effects.

Production

Accelerating the production of the York encountered significant challenges, primarily due to shortages in essential materials. Additionally, Avro was compelled to focus heavily on the development and production of the Lancaster. At that time, authorities determined that there was no immediate need for a large fleet of Yorks. By the close of 1943, only four prototypes alongside three production models had been completed; however, plans aimed to increase output to three units per month throughout 1944. The initial York aircraft produced were mainly utilized as VIP transports, with the third prototype, LV633, being lavishly outfitted to serve as Winston Churchill's personal conveyance.

File:York-i.jpg

RAF York

The establishment of RAF Transport Command on 25 March 1943 marked a pivotal moment, as it identified a clear necessity to enhance Britain's air transport capabilities. Consequently, the York became the first British-built aircraft deployed in substantial numbers by Transport Command. The RAF initially placed an order for 200 Yorks, followed by an additional 100 aircraft shortly thereafter. Throughout 1944, most Yorks constructed were configured for passenger transport; nonetheless, a portion was built either as dedicated freighters or as combined passenger/freighter variants. Some early production units intended for RAF use were redirected to BOAC, which had previously received very few comparable aircraft before the first York was delivered in April 1944.

Initial assembly and testing of York production models, mainly destined for RAF service at the time, took place at Ringway, peaking in 1945. Subsequently, these operations were relocated to facilities at Yeadon, Leeds, and Woodford, Cheshire, where production proceeded at a reduced rate. Of the second batch ordered for 100 units, only eight were actually produced; the final York, PE108, was completed in April 1948.

Internationally, a single pattern aircraft was assembled by Victory Aircraft in Canada; however, no further orders materialized. Although Victory had prepared tooling for 30 aircraft and manufactured components for five units, only one was finished near the conclusion of the war. This particular aircraft was later acquired by Skyways Ltd.

Design

The Avro York featured a high-wing cantilever monoplane design constructed entirely from metal and bore numerous design elements derived from its Lancaster predecessor. Its wings incorporated a two-spar framework containing seven internal fuel tanks between the spars with a total capacity of 2,478 imperial gallons (11,270 L; 2,976 US gal). The outer wing panels tapered on both edges and included removable tips. Equipped with hydraulically operated split trailing-edge flaps made entirely of metal, the wings supported four Rolls-Royce Merlin engines housed in underslung nacelles attached to the front wing spar. Each engine powered a three-bladed constant-speed metal propeller with feathering capability, manufactured by de Havilland Hydromatic. The fuselage employed semi-monocoque construction with flush-riveted skin and was assembled from five separate sections. The tail assembly featured a distinctive triple vertical stabilizer arrangement.

Configured typically for passengers, the York accommodated 21 seats arranged three abreast across fore and aft cabins. Positioned between these cabins was the main entrance door along with cloakrooms and lavatories; a galley and baggage compartment were located towards the rear section of the cabin. Emergency exits were installed in the ceiling of each cabin compartment. While passengers experienced high noise levels due to engine operation, pilots generally found flying the York to be reasonably comfortable.

Military

File:Avro 685 York G-AGSP BOAC LAP 02.06.53 edited-1.jpg

BOAC York operating a freight schedule at Heathrow in 1953

The first squadron to be fully outfitted with York aircraft was No. 511 Squadron in 1945; eventually, ten RAF Transport Command squadrons operated Yorks either entirely or partially. Within military service, the York was deployed on all major routes managed by Transport Command, including the vital England–India corridor. In total, the RAF received 208 York aircraft.

Throughout the Berlin Airlift, seven RAF squadrons flew Yorks on over 58,000 missions to supply the city between 1948 and 1949. The York fleet transported more than 230,000 tons of cargo; this represented approximately 43% of Britain's contribution alongside other types such as the Douglas Dakota and Handley Page Hastings. After the conclusion of the Airlift, much of the RAF's York inventory was phased out; around 40 aircraft were sold to civilian operators while many others were scrapped due to corrosion. During the 1950s, civilian operators frequently received military contracts to operate Yorks.

In 1954, the French Aéronavale acquired five Yorks from the British Air Ministry and operated them at Le Bourget for roughly one year.

Civilian

File:Avro 685 York XF919.G-AMUS Air Charter STA 10.4.55 edited-2.jpg

Air Charter York departing from London Stansted in 1955 on a trooping mission to the Suez Canal Zone

The first civilian York (G-AGJA), originally built as MW103 for RAF use, received its airworthiness certificate on 21 February 1944 and was shortly thereafter delivered to BOAC. On 22 April that year, it launched an initial route linking the UK with Morocco and Cairo. Following the reassignment of the first five RAF-built Yorks to BOAC, plans were made to allocate an additional sixty aircraft to the airline, though ultimately only twenty-five more were delivered. Early BOAC operations involved close cooperation with No. 216 Group RAF, resulting in some Yorks displaying both civilian registrations and military markings simultaneously.

Service soon extended to include flights to Johannesburg, South Africa, coordinated with South African Airways, where Yorks on this route were configured with twelve sleeping berths alongside standard seating due to flight duration. Most of BOAC’s York fleet were fitted as fully equipped passenger airliners or as combined passenger and cargo variants.

In the years following World War II, BOAC significantly increased its use of Yorks, including operating them on routes such as Cairo to Durban, a service formerly flown by Shorts flying boats. Other carriers also employed the type; for example, British South American Airways (BSAAC) used Yorks on Caribbean and South American routes before merging into BOAC in September 1949.

BOAC discontinued passenger services using York aircraft on 7 October 1952 but continued employing them for freight operations. Freight flights operated by BOAC's Yorks persisted until November 1957 when the final aircraft was retired. After BOAC and BSAAC disposed of their fleets, several UK independent airlines acquired these aircraft for both passenger and cargo duties; many flights involved long-range troop transport missions to locations such as Jamaica and other British military bases. Among independents, Skyways was the largest operator of Yorks. By 1964, Skyways and Dan Air had phased out their remaining York aircraft.

During construction of the Canadian Distant Early Warning Line (Dew Line) in the late 1950s, Associated Airways introduced the York as a freighter to support logistics; these planes were later integrated into regular airline operations. At least one example, CF-HAS, remained active with Transair as late as 1961.

VIP service

File:Avro York - GG flight (AWM P01493-003).jpg

Personnel of the Governor-General's Flight RAAF posing beside the Vice-Regal Avro York in June 1945

The Avro York, akin to its Lancaster and Lincoln counterparts, was a highly adaptable aircraft. One prototype, designated LV633 and named Ascalon, was specially designed to serve as the private transport and airborne meeting space for King George VI and Prime Minister Winston Churchill. This aircraft was intended to be equipped with a unique pressurized "egg" cabin, allowing VIP passengers to travel without the need for oxygen masks. Constructed from aluminium alloy, this compartment featured eight perspex windows designed to alleviate feelings of confinement. Additional amenities included a telephone, an instrument panel, provisions for drinks, an ashtray suitable for cigars, as well as storage space for newspapers, books, and a thermos flask. Tests conducted at RAE Farnborough confirmed the effectiveness of this "egg." However, Avro’s commitment to developing the Lancaster IV (Avro Lincoln) meant the installation in Ascalon never materialized. The concept was later considered for the succeeding Douglas C-54B model, but contractor Armstrong Whitworth deemed it unfeasible, leading to the project's abandonment. The current location of this so-called "Churchill's Egg" remains unknown.

The aircraft MW140, named Endeavour, was dispatched to Australia in 1945 to serve as the personal plane for the Duke of Gloucester, then Governor-General of Australia. It operated under the Governor-General's Flight from 1945 until 1947 and was notably the only York in service with the Royal Australian Air Force. Another York, identified as MW102, was outfitted as a mobile office for Viceroy of India and Commander-in-Chief South East Asia Command, Lord Mountbatten. During its significant overhaul at Avro’s Manchester (Ringway) facility in 1945, this aircraft received a new light duck egg green paint scheme aimed at reducing heat absorption, replacing its previous standard camouflage finish. Additionally, South African statesman Jan Smuts utilized a York as his dedicated transport. On 14 November 1944, Air Chief Marshal Sir Trafford Leigh-Mallory perished along with his wife Dora and eight crew members when York MW126 collided with a ridge amid a blizzard approximately 30 miles (48 km) south of Grenoble, France while en route to his new command in Ceylon overseeing Allied air operations in the Pacific. The crash site was discovered by a local resident in June 1945.

Variants

Avro 685 Prototypes

LV626 – initially flew as a twin-tail prototype, later upgraded to the C.II configuration

LV629 – prototype equipped with passenger seating

LV633 – prototype designed as an airborne conference room, subsequently utilized by Winston Churchill

LV639 – prototype adapted for paratrooper deployment, featuring a floor-mounted drop hatch

York I

Civilian transport aircraft powered by four engines, with a total of 45 units produced

York C.I

Military transport version for the Royal Air Force, powered by four engines; 208 manufactured by Avro and one by Victory Aircraft

York C.II

Single prototype modified to incorporate four Bristol Hercules XVI radial piston engines

Military Operators

Template:AUS

• Royal Australian Air Force
  • Governor-General's Flight RAAF

Template:FRA

• French Air Force
• Aeronavale

South Africa

• South African Air Force

Template:UK

• Aeroplane and Armament Experimental Establishment (Boscombe Down)
• Airborne Forces Experimental Establishment (Beaulieu)
• Royal Aircraft Establishment (Farnborough)
• Royal Air Force
  • No. 24 Squadron RAF operated from 1943 to 1951 across multiple English bases
  • No. 40 Squadron RAF active between 1947 and 1950 (RAF Abingdon, England)
  • No. 51 Squadron RAF served from 1946 to 1950 at various locations in England
  • No. 59 Squadron RAF functioned between 1947 and 1950 (RAF Abingdon, England)
  • No. 99 Squadron RAF operated from 1947 to 1949 (RAF Lyneham, England)
  • No. 206 Squadron RAF active from 1947 to 1950 (RAF Lyneham, England)
  • No. 232 Squadron RAF
  • No. 242 Squadron RAF served between 1945 and 1949 at various English bases
  • No. 246 Squadron RAF operated from 1944 to 1946 (RAF Holmsley South, England)
  • No. 511 Squadron RAF active between 1943 and 1949 (RAF Lyneham, England)
  • No. 241 Operational Conversion Unit RAF based at RAF Dishforth, England
  • Air Command South East Asia Communications Squadron (RAF Ratmalana, Ceylon)
  • Air Transport Tactical Development Unit (RAF Netheravon, England)
  • Empire Air Navigation School (RAF Shawbury, England)
  • Far East Communications Squadron (RAF Changi, Singapore)
  • Metropolitan Communications Squadron (RAF Hendon, England)
  • Transport Command Development Unit
  • Transport Command Examining Unit
  • 1310 Flight RAF stationed at RAF Upavon, England
  • 1359 Flight RAF based at RAF Lyneham then RAF Bassingbourn, England
  • 1332 Heavy Conversion Unit operated at various locations in England and Northern Ireland
• Telecommunications Research Establishment located in Defford, England

Civil Operators

Template:Country data Aden

• Aden Airways

Template:ARG

• Flota Aérea Mercante Argentina (FAMA)
• Aerolíneas Argentinas

Canada

• Arctic Wings
• Associated Airways
• Maritime Central Airways
• Pacific Western Airlines
• Spartan Air Services
• Transair (Canada)

Template:Country data Iran

• Persian Air Services

Template:Country data Lebanon

• Air Liban
• Middle East Airlines
• Trans Mediterranean Airways

South Africa

• South African Airways - operated York aircraft leased from BOAC temporarily until acquiring Douglas DC-4s and Avro Tudors
• Tropic Airways

Template:UK

• Air Charter - fleet of ten aircraft operated between 1952 and 1956
• BOAC
• British South American Airways
• Dan-Air
• Eagle Aviation
• Hunting-Clan Air Transport
• Scottish Airlines
• Skyways
• Surrey Flying Services

Exhibited Aircraft

Although no Avro Yorks remain airworthy, two fully intact examples are exhibited within the United Kingdom. Both were originally assigned to the Royal Air Force but spent the majority of their operational lives under civilian operators, carrying both military and civil registration numbers.

Avro York TS798, G-AGNV

File:Avro York C1 (50118125218).jpg

Avro 685 York C1, TS798 (G-AGNV) at the RAF Museum Cosford, 2020

The Avro 685 York C1, with the construction number 1223 and military serial TS798, is part of the Royal Air Force Museum Midlands collection located in Cosford. Completed in October 1945 for RAF use as TS798, it was promptly transferred to BOAC and registered civilly as G-AGNV. During its BOAC tenure, the aircraft operated routes across South Asia and Africa until 1950. Skyways acquired it in 1955 and continued operations until 1964.

Following its operational service, the aircraft was sold to the Skyways preservation group and conducted the final flight of any York model when it flew from Heathrow to Gloucestershire Airport for conservation purposes. In 1972, ownership passed to the RAF Museum. The following year, it underwent restoration and was repainted in RAF colors to represent another example, MW100. Since 1976, it has been exhibited at the RAF Museum’s Cosford site.

Avro York MW232, G-ANTK

File:G-ANTK Avro York C.1 Duxford 2 JUl 2006 side (48503735022).jpg

Avro York G-ANTK at the Imperial War Museum Duxford, temporarily displayed outdoors before relocation to a new hangar (2006)

The Avro 685 York C1 bearing civil registration G-ANTK is displayed at the Imperial War Museum Duxford. Originally constructed at Yeadon near Leeds in January 1946, this airframe entered RAF service in August of that year with 242 Squadron as MW232. It participated in the Berlin Airlift and subsequently transferred to 511 Squadron at Lyneham in May 1947. It remained there until May 1950 before being utilized by Fairey Aviation for aerial refueling experiments. Afterward, it was stored at 12 Maintenance Unit at Kirkbride pending disposal. In July 1954, it was registered as G-ANTK with Dan Air and employed for cargo transport until retirement in May 1964.

Post-retirement, the aircraft was relocated to Lasham Airfield, where it served as accommodation for Air Scouts until 1974. Restoration efforts began under the Dan Air preservation group but were later deemed unfeasible during the mid-1980s. Subsequently, negotiations with the Duxford Aviation Society led to its dismantling in May 1986 and transportation via seven low-loaders to Duxford on May 23.

Accidents and Incidents

Main article: List of accidents and incidents involving the Avro York

The Avro York experienced a total of 87 hull-loss events throughout its operational history. Below is a summary of those accidents that resulted in fatalities or significant destruction of aircraft. This data primarily originates from: Piston Engine Airliner Production List (1991) and records maintained by the Aviation Safety Network. :

• On 14 November 1944, an RAF York crashed near Grenoble, France, resulting in ten fatalities including Air Chief Marshal Trafford Leigh-Mallory.
• An RAF York crashed off Lampedusa Island on 2 February 1945.
• A crash near New Milton, Hampshire destroyed an RAF York by fire on 29 December 1945.
• On takeoff from RAF Woodbridge on 11 April 1946, an RAF York crashed and caught fire; one of six crew members perished.
• The British South American Airways York named Star Leader crashed shortly after departing Bathurst, The Gambia, en route from London to Buenos Aires via multiple stops on 7 September 1946 due to loss of control during climb; all twenty-four passengers and crew were killed.
• An RAF York crashed into the Bay of Bengal on 6 October 1946.
• On takeoff from Dum Dum Airport in Calcutta on 20 October 1946, an RAF York crashed.
• An RAF York crashed south of Helwan desert in Egypt on 20 November 1946.
• A Flota Aérea Mercante Argentina York collided with a mountain approximately thirty-one kilometers from Rio de Janeiro on 23 December 1946.
• Near Negombo Town after departing Negombo, Ceylon, an RAF York crashed and burned on March 18, 1947.
• The British South American Airways York named Star Speed crashed during landing at Dakar, Senegal on April 13, 1947.
• An RAF York overshot its landing at RAF Oakington and crashed on July 1, 1947.
• A BOAC-operated York crashed near Basra, Iraq on July 16, 1947.
• An RAF York overshot its landing at RAF Dishforth, Yorkshire on November 17, 1947.
• On February 16, 1948 an RAF York sustained irreparable damage during landing at RAF Hullavington.
• A mid-air collision occurred over Northwood, London on July 4, 1948 between an RAF York and a Scandinavian Airlines System Douglas DC-6; all seven aboard the York and thirty-two aboard the DC-6 were killed. See 1948 Northwood mid-air collision.
• On September 19, 1948 an RAF York crashed during takeoff from Wunstorf airbase in West Germany.
• British South American Airways’ York named Star Venture crashed at Caravellos Bay in Brazil on January 5, 1949.
• A Skyways-operated York crashed while approaching Gatow airfield southwest of West Berlin on March 15, 1949.
• On February 2, 1953 a Skyways Avro York disappeared over the sea off Newfoundland after sending an SOS; wreckage was never recovered and all thirty-nine occupants perished.
• A Skyways aircraft crash-landed at Kyritz in East Germany on June 26, 1954.
• An Associated Airways York suffered irreparable damage after striking an obstacle during takeoff from Edmonton Municipal Airport in Canada on May 26, 1955.
• On September 29, 1955 another Associated Airways York was written off following ditching into the Thoa River near Yellowknife in Canada’s Northwest Territories.
• A Scottish Airlines York crashed due to pilot error at Malta on February 18, 1956 killing all fifty passengers and crew aboard; see 1956 Scottish Airlines Malta air disaster.
• On April 30, 1956 a Scottish Airlines York crashed shortly after takeoff from Stansted Airport in Essex.
• A Maritime Central Airways’ York was damaged beyond repair after a forced landing in Quebec on September 26, 1956.
• Transair (Canada) lost a York due to fire following a crash landing onto a lake within Hudson Bay on January 8, 1957.
• Pacific Western Airlines experienced loss of a York aircraft after damage beyond repair during an accident at Cape Perry in Northwest Territories on June 25, 1957.
• A cargo-carrying Scottish Airlines’ York crashed near Stansted while approaching the airport on December 23, 1957; all four crew members died.
• Dan-Air lost a York when it crashed at Guragon in Punjab state of India on May 25, 1958.
• A Middle East Airlines’ Avro York vanished over the Mediterranean Sea between Beirut and Rome on September 29, 1958.
• Finally, Trans Mediterranean Airways’ Avro York crashed approximately seven miles southeast of Karaj in Iran on March 15, 1963.

Specifications (Avro York)

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Avro York

External links

• Avro York exhibit at RAF Museum, Cosford
• "1,000,000th Ton!" a 1949 advertisement from Flight highlighting the York
• "Flying with Prudence" a 1946 instructional film aimed at RAF aircrew emphasizing peacetime flight safety