09/30/2008. Roy Chadwick's design to meet the 1920 Air Ministry Specification 2/20 for an interim bomber, attracted an order for two prototypes, s/n J6852 and J6853. Powered by the 675 hp Rolls Royce Condor twelve-cylinder liquid-cooled V-engine, both prototypes flew in 1922.
The pictured first prototype was re-engined with an 1,000 hp Napier Cub sixteen-cylinder water-cooled X-engine and the fuselage was lengthened by 6 ft (1.83 m) and redesignated Type 594A Aldershot Mk.II. Later it was fitted with the 850 hp Beardmore Typhoon Mk.I six-cylinder inverted in-line engine and redesignated Type 594C Aldershot Mk.VI.
Fifteen aircraft were produced for service with RAF No. 99 Squadron, these were designated Type 594C Aldershot Mk.III.