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Avro 618 Ten

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Avro 618 Ten
VH-UMH as New England Airways'City of Grafton
General information
TypePassenger & military transport
ManufacturerAvro
Designer
Primary userAustralian National Airways,Imperial Airways
History
Introduction date1930
Developed fromF.VIIB/3m

TheAvro 618 Ten orX was a passenger transport aircraft of the 1930s. It was a licensed version byAvro of theFokkerF.VIIB/3m.

Development

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In 1928Avro came to an arrangement withFokker to license production of its successfulF.VIIB/3m for sale in theBritish Empire (except Canada). The Avro designation618 Ten was adopted as the aircraft was capable of carrying two crew and eight passengers.[1] After a modification of the centre motor mounting to accommodate British airworthiness requirements, the aircraft was first displayed at the 1929Olympia Aero Show. TheAvro 642 Eighteen used the same wing as the Ten but had a new fuselage for 16 passengers.

Operational history

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Australia

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Southern Sun
Avro 618 Ten, 'Faith in Australia' (formerlySouthern Moon) cockpit, 1933

The first five aircraft were sold to the newAustralian National Airways. The type entered service on 1 January 1930 on theBrisbane-Sydney route, and laterMelbourne-Sydney.[1] They were:

VH-UMFSouthern Cloud
VH-UMGSouthern Star
VH-UMHSouthern Sky
VH-UMISouthern Moon
VH-UNASouthern Sun

Two of this fleet were lost in accidents:Southern Cloud in the Toolong range of theAustralian Alps on 21 March 1931 (the wreckage was not found until 1958) andSouthern Sun inMalaya in November 1931, while attempting the firstairmail flight to the United Kingdom. The airline folded and the remaining aircraft were sold.

Southern Moon was rebuilt in 1933 for long-range flights, fitted with 330 hp (250 kW)Wright Whirlwind radial engines and restyled asVH-UXX Faith in Australia. The last surviving 618 Ten in Australia, it evacuated many people fromNew Guinea in 1941.[2] Another two 618 Ten aircraft were also sold to Australian companies.[3] Three of the 619 Five aircraft went to two Australian airlines, as did (after commercial service in Britain) the sole 642/2m.

Britain and elsewhere

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Aircraft cockpit

Four 618 Tens were delivered directly to British customers. Two went toImperial Airways (April and June 1931) and were chartered to theIraq Petroleum Transport Company before returning to Britain in 1933. One went toMidland & Scottish Air Ferries (May 1933) and at the end of 1931 one went to Indian State Airways for the use of theViceroy of India. Two Tens went to theEgyptian Army air force in January 1932, one of them surviving to joinIndian National Airways in September 1934. The last production Ten was delivered to theRoyal Aircraft Establishment's Wireless and Equipment Flight in July 1936 with the RAF serialK2682. One of the 624 Sixes was used by A.S.T Ltd; the other two were eventually sold to the Chinese government.

Accidents and incidents

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  • On 30 December 1933, G-ABLUApollo ofImperial Airways collided with a radio mast andcrashed atRuysselede, Belgium, killing all ten on board.
  • Avro XSouthern Cloud crashed whilst en route from Sydney to Melbourne on 21 March 1931, with two crew and eight passengers, but with no survivors. The wreckage was located by chance, off course and facing in the wrong direction, in October 1958 by Thomas Sonter, a New Zealand carpenter employed by the Snowy Mountains Scheme, whilst he was hiking.[4]
  • On 3 April 1940, aBOAC Avro 618 Ten (G-AASP,Hercules) crashed on takeoff from Cairo; there were no casualties, but the aircraft was written off.[5]

Variants

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Star of Cairns, Avro 619 Five
  • Type 618 Ten : Ten-seat civil transport aircraft. Fourteen built.
  • Type 619 Five : Five-seat civil transport aircraft. Scaled-down version of Avro Ten. Three 105 hp (78 kW)Armstrong Siddeley Genet Major 1 engines. Four aircraft built.
  • Type 624 Six : Six-seat civil transport aircraft. Revised version of Avro Five with accommodation for two pilots and four passengers. Three Genet engines again, but the outer engines in fairings merged into the underside of the wings. Three aircraft built.

Operators

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Civil operators

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 Australia
 China
  • The Government of China
IndiaBritish India
 United Kingdom

Military operators

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Egypt
 United Kingdom

Specifications (Avro 618)

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Data from Avro Aircraft since 1908[1]

General characteristics

  • Crew: 2
  • Capacity: 8 pax
  • Length: 47 ft 6 in (14.48 m)
  • Wingspan: 71 ft 3 in (21.72 m)
  • Height: 12 ft 9 in (3.89 m)
  • Wing area: 772 sq ft (71.7 m2)
  • Empty weight: 6,020 lb (2,731 kg)
  • Max takeoff weight: 10,600 lb (4,808 kg)
  • Powerplant: 3 ×Armstrong Siddeley Lynx IVB or IVC 7-cylinder air-cooled radial piston engines, 240 hp (180 kW) each
  • Propellers: 2-bladed fixed-pitch propellers

Performance

  • Maximum speed: 115 mph (185 km/h, 100 kn)
  • Cruise speed: 100 mph (160 km/h, 87 kn)
  • Range: 400 mi (640 km, 350 nmi)
  • Service ceiling: 16,000 ft (4,900 m)
  • Rate of climb: 675 ft/min (3.43 m/s)

See also

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Notable pilots

Related development

Related lists

References

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  1. ^abcJackson, A J (1990).Avro Aircraft since 1908 (2nd ed.). London: Putnam Aeronautical Books.ISBN 0-85177-834-8.
  2. ^"Air News: Famous Veteran Aircraft to the Rescue".The Meccano Magazine.XXVII (5): 180. May 1941.
  3. ^Virtue in Flying p. 23
  4. ^"Reference at www.dailytelegraph.com.au".
  5. ^"Incident Avro 618 Ten (Fokker F.VIIb/3m) G-AASP". Aviation Safety Network. Retrieved12 July 2020.

External links

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