De Havilland Albatross

Last updated

DH.91 Albatross
Albatross 1938 prototype.jpg
The prototype DH.91 Albatross, G-AEVV, over Hatfield, September 1938 (photo from Flight International)
General information
Type Mail plane and transport aircraft
Manufacturer de Havilland
Designer
Primary users Imperial Airways/British Overseas Airways Corporation
Number built7 (including two prototypes)
History
Introduction dateOctober 1938
First flight20 May 1937
Retired1943

The de Havilland DH.91 Albatross was a four-engined British transport aircraft of the 1930s manufactured by de Havilland Aircraft Company Limited. Seven aircraft were built between 1938 and 1939.

Contents

Development

The DH.91 was designed in 1936 by A. E. Hagg to Air Ministry specification 36/35 for a transatlantic mail plane.

The aircraft was notable for the ply-balsa-ply sandwich construction of its fuselage, later used in the de Havilland Mosquito bomber. Another unique feature was a cooling system for the air-cooled engines that allowed nearly ideal streamlining of the engine mounting. [1] The first Albatross flew on 20 May 1937. The second prototype broke in two during overload tests, but was repaired with minor reinforcement. The first and second prototypes were operated by Imperial Airways.

Although designed as a mail plane, a version to carry 22 passengers was developed, with the main differences being extra windows and the replacement of split flaps with slotted flaps. Five examples formed the production order delivered in 1938/1939. When war was declared, all seven aircraft were operating from Bristol/Whitchurch to Lisbon and Shannon. [2]

Operational history

BOAC de Havilland Albatross at Bristol (Whitchurch) Airport, circa 1941 IWM-CH14317-DH91-Albatross-205210634.jpg
BOAC de Havilland Albatross at Bristol (Whitchurch) Airport, circa 1941

As normal for the Imperial Airways fleet of the time, all were given names starting with the same letter, and the first aircraft's name was also used as a generic description for the type overall, as "Frobisher class". This tradition, which came from a maritime and railway background of classes of ships and locomotives, lasted well into postwar days with BOAC and BEA.

The first delivery to Imperial Airways was the 22-passenger DH.91 Frobisher in October 1938. The five passenger-carrying aircraft were operated on routes from Croydon to Paris, Brussels, and Zurich. After test flying was completed, the two prototypes were delivered to Imperial Airways as long-range mail carriers. The only significant season of their operation was the summer of 1939, when they were the main type on the two-hour-long London Croydon-to-Paris Le Bourget passenger route.

With the onset of World War II, the Royal Air Force considered their range and speed useful for courier flights between Great Britain and Iceland, and the two mail planes were pressed into service with 271 Squadron in September 1940, operating between Prestwick and Reykjavík, but both were destroyed in landing accidents in Reykjavík within 9 months: Faraday in 1941 and Franklin in 1942. [3]

The five passenger-carrying aircraft were used by Imperial Airways, (BOAC from September 1940) on BristolLisbon and BristolShannon routes from Bristol (Whitchurch) Airport. [3]

Frobisher was destroyed during a German air raid on Whitchurch in 1940, [lower-alpha 1] , Fingal was destroyed in a crash landing, following a fuel-pipe failure in 1940 at Pucklechurch and Fortuna crashed near Shannon Airport in 1943. The latter accident was found to be due to deterioration of the aircraft's plywood wing structures. In view of the two surviving aircraft's vulnerability to similar problems, and for lack of spares parts, Falcon and Fiona were scrapped in September 1943. [5]

Aircraft

Faraday

Mail-carrier variant was delivered to Imperial Airways in August 1939 as Faraday and registered G-AEVV. It was transferred to BOAC when it was formed in 1940 but was impressed into Royal Air Force service with serial number AX903 for operation by No. 271 Squadron RAF. It was destroyed in a landing accident at Reykjavík on 11 August 1941. [6] [7]

Franklin

Mail-carrier variant was delivered to BOAC as Franklin and registered G-AEVW. Impressed into Royal Air Force Service with the serial number AX904 for operation by 271 Squadron. It was destroyed when the landing gear collapsed on landing at Reykjavík on 7 April 1942. [6] [8]

Frobisher

Passenger variant was registered G-AFDI and delivered to Imperial Airways (later BOAC) as Frobisher in 1938. It was destroyed on the ground during a German air attack on Whitchurch Airport on 20 December 1940. [6] [9]

Falcon

Passenger variant was registered G-AFDJ and delivered to Imperial Airways (later BOAC) as Falcon in 1938. It was scrapped in September 1943. [6] [10]

Fortuna

Passenger variant was registered G-AFDK and delivered to Imperial Airways (later BOAC) as Fortuna in 1939. Destroyed in a crash landing near Shannon Airport, Ireland on 16 July 1943. [6] [11]

Fingal

Passenger variant was registered G-AFDL and delivered to Imperial Airways (later BOAC) as Fingal in 1939. Destroyed in a crash landing near Pucklechurch, Gloucestershire, England on 6 October 1940. [6] [12]

Fiona

Passenger variant was registered G-AFDM and delivered to Imperial Airways (later BOAC) as Fiona in 1939. It was scrapped in September 1943. [6] [13]

A 1/10 scale model of the Albatross owned by British Airways was found in a crate at Croydon in the 1990s and is on display in the heritage museum at Speedbird House.

Operators

Flag of the United Kingdom.svg  United Kingdom

Specifications (DH.91)

Data from , [14] British Civil Aircraft since 1919 [15]

General characteristics

  • airliner 440 imp gal (528 US gal; 2,000 L) in two under-belly tanks;
  • mailplane 1,320 imp gal (1,585 US gal; 6,001 L) in four main cabin fuel tanks

Performance

193.5 mph (311.4 km/h) with 65% power at 11,000 ft (3,400 m)
200 mph (320 km/h) with 65% power at 15,000 ft (4,600 m)
  • 5,000 ft (1,500 m) in 7 minutes
  • 10,000 ft (3,000 m) in 14 minutes
  • 15,000 ft (4,600 m) in 26 minutes

See also

Aircraft of comparable role, configuration, and era

Related lists

Related Research Articles

<span class="mw-page-title-main">Imperial Airways</span> Defunct long-range airline of the United Kingdom (1924–1939)

Imperial Airways was an early British commercial long-range airline, operating from 1924 to 1939 and principally serving the British Empire routes to South Africa, India, Australia and the Far East, including Malaya and Hong Kong. Passengers were typically businessmen or colonial administrators, and most flights carried about 20 passengers or fewer. Accidents were frequent: in the first six years, 32 people died in seven incidents. Imperial Airways never achieved the levels of technological innovation of its competitors and was merged into the British Overseas Airways Corporation (BOAC) in 1939. BOAC in turn merged with the British European Airways (BEA) in 1974 to form British Airways.

de Havilland Comet First commercial jet airliner

The de Havilland DH.106 Comet is the world's first commercial jet airliner. Developed and manufactured by de Havilland in the United Kingdom, the Comet 1 prototype first flew in 1949. It features an aerodynamically clean design with four de Havilland Ghost turbojet engines buried in the wing roots, a pressurised cabin, and large windows. For the era, it offered a relatively quiet, comfortable passenger cabin and was commercially promising at its debut in 1952.

<span class="mw-page-title-main">Bristol Britannia</span> British four-engined turboprop airliner, 1952

The Bristol Type 175 Britannia is a retired British medium-to-long-range airliner built by the Bristol Aeroplane Company in 1952 to meet British civilian aviation needs. During development two prototypes were lost and the turboprop engines proved susceptible to inlet icing, which delayed entry into service while solutions were sought.

de Havilland Dragon Rapide 1934 small airliner family

The de Havilland DH.89 Dragon Rapide is a 1930s short-haul biplane airliner developed and produced by British aircraft company de Havilland. Capable of accommodating 6–8 passengers, it proved an economical and durable craft, despite its outdated plywood construction.

de Havilland Express 1934 four-engined passenger aircraft

The de Havilland Express, also known as the de Havilland D.H.86, was a four-engined passenger aircraft manufactured by the de Havilland Aircraft Company between 1934 and 1937.

<span class="mw-page-title-main">British Airways Ltd</span> Defunct airline of the United Kingdom (1935–1939)

British Airways Ltd was a British airline company operating in Europe in the period 1935–1939. It was formed in 1935 by the merger of Spartan Air Lines Ltd, United Airways Ltd, and Hillman's Airways. Its corporate emblem was a winged lion.

de Havilland Flamingo British passenger and transport aircraft

The de Havilland DH.95 Flamingo was a British twin-engined high-wing monoplane airliner first flown on 22 December 1938. During the Second World War some were used by the Royal Air Force (RAF) as a transport and general communications duties.

<span class="mw-page-title-main">Lockheed Model 14 Super Electra</span> 1930s American family of airliners

The Lockheed Model 14 Super Electra was an American civil passenger and cargo aircraft built by the Lockheed Aircraft Corporation during the late 1930s. An outgrowth of the earlier Model 10 Electra, the Model 14 was also developed into larger, more capable civil and military versions.

de Havilland Dragon 1932 twin engine light transport aircraft

The de Havilland DH.84 Dragon is a successful small commercial aircraft that was designed and built by the de Havilland company.

de Havilland Dove British short-haul airliner produced 1946–1967

The de Havilland DH.104 Dove is a British short-haul airliner developed and manufactured by de Havilland. The design, which was a monoplane successor to the pre-war Dragon Rapide biplane, came about from the Brabazon Committee report which, amongst other aircraft types, called for a British-designed short-haul feeder for airlines.

<span class="mw-page-title-main">Armstrong Whitworth Ensign</span>

The Armstrong Whitworth A.W.27 Ensign was a British four-engine monoplane airliner and the largest airliner built in Britain during the Interwar period.

<span class="mw-page-title-main">Railway Air Services</span> Defunct British airline

Railway Air Services (RAS) was a British airline formed in March 1934 by the Big Four railway companies and Imperial Airways. The airline was a domestic airline operating routes within the United Kingdom linking up with Imperial's services.

<span class="mw-page-title-main">Heston Aerodrome</span> Airport

Heston Aerodrome was an airfield located to the west of London, England, operational between 1929 and 1947. It was situated on the border of the Heston and Cranford areas of Hounslow, Middlesex. In September 1938, the British Prime Minister, Neville Chamberlain, flew from Heston to Germany three times in two weeks for talks with Adolf Hitler, and returned to Heston from the Munich Conference with the paper referred to in his later "Peace for our time" speech from 10 Downing Street.

de Havilland Dragonfly

The de Havilland DH.90 Dragonfly is a 1930s British twin-engined luxury touring biplane built by the de Havilland Aircraft Company at Hatfield Aerodrome.

de Havilland Giant Moth Early British transport aircraft

The de Havilland DH.61 Giant Moth was a 1920s British large single-engined biplane transport built by de Havilland at Stag Lane Aerodrome, Edgware. Intended primarily for use in Australia, a number were also shipped to Canada.

de Havilland Hercules

The de Havilland DH.66 Hercules was a British 1920s seven-passenger, trimotor airliner built by de Havilland Aircraft Company. With the Hercules, Imperial Airways took over responsibility for the airmail service from the Royal Air Force, which had been operating the obsolete Airco DH.10 Amiens.

<span class="mw-page-title-main">Bristol (Whitchurch) Airport</span> Former airport of Bristol, England, United Kingdom (1930–1957)

Bristol (Whitchurch) Airport, also known as Whitchurch Airport, was a municipal airport in Bristol, England, three miles (5 km) south of the city centre, from 1930 to 1957. It was the main airport for Bristol and the surrounding area. During World War II, it was one of the few civil airports in Europe that remained operational, enabling air connections to Lisbon and Shannon and onwards to the United States.

<span class="mw-page-title-main">British Overseas Airways Corporation</span> 1939–1974 British state-owned airline

British Overseas Airways Corporation (BOAC) was the British state-owned airline created in 1939 by the merger of Imperial Airways and British Airways Ltd. It continued operating overseas services throughout World War II. After the passing of the Civil Aviation Act 1946, European and South American services passed to two further state-owned airlines, British European Airways (BEA) and British South American Airways (BSAA). BOAC absorbed BSAA in 1949, but BEA continued to operate British domestic and European routes for the next quarter century. The Civil Aviation Act 1971 merged BOAC and BEA, effective 31 March 1974, forming today's British Airways.

Western Airways was an airline based in Weston-super-Mare, Somerset, England between 1932 and 1978. Before World War II, for a short period, it was the world's busiest airline. It survived WWII by using its aircraft engineering expertise.

References

Notes

  1. Moss states that Frobisher was actually destroyed by an arson attack by a disgruntled ex-BOAC employee on 20 October 1940. [4]

Citations

  1. Bonnier Corporation (September 1938). "Cooling System for Plane Engines Uses Air Piped from Wings". Popular Science. Bonnier Corporation. p. 46. Archived from the original on 15 December 2021. Retrieved 2 November 2016.
  2. Mondey, Dvaid (1982). Hamlyn Concise Guide to British Aircraft of World War II. Hamlyn Publishing Group Ltd. p. 75. ISBN   1851526684.
  3. 1 2 Moss Air Pictorial, September 1964, p. 292.
  4. Moss Air Pictorial September 1964, p. 293.
  5. Moss Air Pictorial, September 1964, p. 294.
  6. 1 2 3 4 5 6 7 Jackson 1973, pp 472
  7. Civil Aviation Authority Registration Entry for G-AEVV Archived 6 June 2011 at the Wayback Machine
  8. Civil Aviation Authority Registration Entry for G-AEVW Archived 6 June 2011 at the Wayback Machine
  9. Civil Aviation Authority Registration Entry for G-AFDI Archived 6 June 2011 at the Wayback Machine
  10. Civil Aviation Authority Registration Entry for G-AFDJ Archived 6 June 2011 at the Wayback Machine
  11. Civil Aviation Authority Registration Entry for G-AFDK Archived 6 June 2011 at the Wayback Machine
  12. Civil Aviation Authority Registration Entry for G-AFDL Archived 6 June 2011 at the Wayback Machine
  13. Civil Aviation Authority Registration Entry for G-AFDM Archived 6 June 2011 at the Wayback Machine
  14. Grey, C.G.; Bridgman, Leonard, eds. (1938). Jane's All the World's Aircraft 1938. London: Sampson Low, Marston & company, ltd. pp. 32c–34c.
  15. Jackson 1973, p.153.
  16. Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Archived from the original on 26 March 2019. Retrieved 16 April 2019.

Bibliography