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Beardmore Inflexible

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Beardmore Inflexible

Inflexible
Beardmore Inflexible at the Norwich Air Display, RAF Mousehold Heath, May 1929
Role Experimental Transport
Manufacturer Beardmore
Designer Dr Rohrbach[1]/W.S Shackleton
First flight 5 March 1928
Introduction 1928
Retired 1930
Status Retired
Primary user Royal Air Force
Number built 1

The Beardmore Inflexible, also known as the Rohrbach Ro VI, was a three-engined all-metal prototype bomber aircraft built by William Beardmore and Company at Dalmuir, Scotland.

Contents

  • Design and development 1
  • Operators 2
  • Specifications 3
  • See also 4
  • References 5
    • Notes 5.1
    • Bibliography 5.2
  • External links 6

Design and development

Beardmore Inflexible

William Beardmore and Company had acquired a licence for the use of the Rohrbach principle for stressed-skin construction. Using these principles and drawings supplied by Rohrbach for the RoVI, the Beardmore company designed, what was then a massive all-metal three-engined transport, the Beardmore Inflexible.

The aircraft (Serial Number J7557) was built in sections at Dalmuir between 1925 and 1927 and these were sent by sea to Felixstowe and from there delivered by road to the Aeroplane & Armament Experimental Establishment (A&AEE) at Martlesham Heath Airfield where it first flew on 5 March 1928,[2] appearing at the Hendon RAF Display later in the year. The aircraft was structurally advanced for its time and had good flying qualities. It was also a very large aircraft for the time, having a wingspan of 157 ft. 6 ins. around 16 feet (4.9 m) greater than the Boeing B-29 Superfortress heavy bomber of World War II. However, with an all up weight of 37,000 lbs. it suffered from being underpowered and, with no interest in production, the aircraft was dismantled at Martlesham Heath in 1930. It was then used to investigate the effects of corrosion on light-alloy stressed skin structures.

One of the aircraft's wheels survives, and is an exhibit in the Science Museum, London.

Operators

 United Kingdom

Specifications

Data from Air Enthusiast International [2]

General characteristics

Performance

See also

Related development
Aircraft of comparable role, configuration and era
Related lists

References

Notes

  1. ^ Flight July 5, 1928 p539 "although the design staff at Dalmuir, headed by Mr. W. S. Shackleton...naturally did a large amount of the detail work."
  2. ^ a b Air Enthusiast International March 1974, p.145.

Bibliography

  • "THE BEARDMORE "INFLEXIBLE" (pdf). Flight: pp. 225–226. 5 April 1928. 
  • The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing. 
  • Jackson, A.J. (1974). British Civil Aircraft since 1919. London: Putnam.  
  • "Plane Facts".  
  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 123. 

External links

  • Film clip of the Inflexible taxiing and taking off at the Norwich Air Display, May 1929; Pathé News online archive.
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