Reid and Sigrist in Desford, Leicester, United Kingdom, were an important instrument manufacturer in the interwar era, specialising in aircraft applications leading to the forming of an aviation division in 1937 at New Malden, Surrey factory site.

The first product was a unique twin-engined advanced trainer powered by a pair of de Havilland Gipsy Six II (205 hp, 152 kW) engines.

[2] An alternate light bomber configuration was also proposed with a pilot and radio operator/navigator in the front compartment and a rear-facing gunner position behind equipped with a single machine gun.

[3] The prototype, registered as G-AEOD on 9 October 1936, had its first flight early in 1939 with Reid and Sigrist test pilot George E. Lowdell at the controls.

[4] Further development of the type was suspended as the company became a wartime engineering and production concern with Bolton-Paul Defiant and Hawker Hurricane assembly and repair contracts.