The Blackburn R.B.2 Sydney (serial N241) 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 with a typical flying boat configuration, featuring triple tailfins and three engines mounted on the wing's leading edge.

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

Data from British Flying Boats [2]General characteristics Performance Armament

Related development Aircraft of comparable role, configuration, and era