The side-by-side two-seat Sidecar was built by the Blackburn Aeroplane & Motor Co. Ltd. at Brough in 1919 for Mr.K.M Smith.

It was a small mid-winged aircraft,[1] with wings and other flying surfaces of constant chord.

The triangular cross-section fuselage was unusually deep, such that the undercarriage cross-axle was attached to the keel or bottom longeron.

The sole Sidecar, eventually registered G-EALN on 26 August 1920, was exhibited at Harrods Department store in Knightsbridge during March 1919.

[1] About July 1921 the aircraft was sold to Mr. Haydon-White, Blackburn's London manager who had it re-engined with a 100-horsepower (75-kilowatt) Anzani radial.