The CAC CA-23 delta wing design concept was a two-seat all-weather fighter with a low set tail. It was originally planned to be powered by two Rolls-Royce Tay engines; the final version was however designed for the more powerful Rolls-Royce Avon turbojet engines. The aircraft was to be fitted with the most up to date radar and electronic equipment. Its anticipated performance was to be in the region of Mach 1.5 which would have been much faster than any contemporary aircraft.Deeb 2006, pp. 14–15.
