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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.

Inflexible
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

Design and development


Beardmore Inflexible photo published in Flight magazine, April 1928
Beardmore Inflexible photo published in Flight magazine, April 1928

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 built a massive all-metal three-engined transport, the Beardmore Inflexible.

The aircraft was built in sections at Dalmuir between 1925 and 1927 which were shipped 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] It appeared 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 (48 m) - around 16 ft (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 lb (17,000 kg) it was underpowered and, with no interest forthcoming from the RAF for a production contract, the aircraft was dismantled at Martlesham Heath in 1930. It was then examined for the effects of corrosion on light-alloy stressed skin structures.

One of the aircraft's wheels survives, and is on 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 5 July 1928 p539 "although the design staff at Dalmuir, headed by Mr. W. S. Shackleton...naturally did a large amount of the detail work."
  2. Air Enthusiast International March 1974, p.145.

Bibliography





На других языках


- [en] Beardmore Inflexible

[fr] Beardmore Inflexible

Le Beardmore Inflexible est un avion trimoteur expérimental de l'entre-deux-guerres construit en Grande-Bretagne.



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