Blackburn Sydney

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Blackburn Sydney.jpg
Role Patrol flying boat
Manufacturer Blackburn
First flight 18 July 1930
Number built 1

The Blackburn R.B.2 Sydney was a long-range maritime patrol flying boat developed for the Royal Air Force in 1930, in response to Air Ministry Specification R.5/27. It was a parasol-winged braced monoplane of typical flying boat arrangement with triple tail fins and its three engines arranged on the wing's leading edge. After evaluation, it was not ordered into production and no further examples were built.

With development of the Sydney abandoned, construction of a cargo-carrying variant powered by radial engines, the C.B.2 Nile was also put to an end.

Specifications (Sydney)[edit]

Data from British Flying Boats [1]

General characteristics

  • Crew: Two pilots, plus gunners
  • Length: 65 ft 7 in (19.99 m)
  • Wingspan: 100 ft (30.49 m)
  • Height: 20 ft 4 in (6.20 m)
  • Wing area: 1,500 ft² (139.4 m²)
  • Empty weight: 17,065 lb (7,741 kg)
  • Loaded weight: 23,350 lb (10,591 kg)
  • Powerplant: 3 × Rolls-Royce F.XII MS, 525 hp (381 kW) each



  • Guns: 3 × trainable .303 in (7.7 mm) Lewis Gun in open bow, dorsal and ventral positions
  • Bombs: 1,102 lb (500 kg) of bombs or 2 × torpedoes

See also[edit]

Related lists


  1. ^ London 2003, pp.260-261.
  • London, Peter (2003). British Flying Boats. Stroud, UK: Sutton Publishing. ISBN 0-7509-2695-3. 
  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 158. 

External links[edit]