Significant contributions to the T.S.R.I's development came from Fairey's independent design work on a proposed aircraft for the Greek Naval Air Service, which had requested a replacement for their Fairey IIIF Mk.IIIB aircraft, and from specifications M.1/30 and S.9/30, which had been issued by the British Air Ministry. Fairey promptly informed the Air Ministry of its work for the Greeks, whose interest had eventually waned, and proposed its solution to the requirements for a spotter-reconnaissance plane ("spotter" referring to the activity of observing and directing the fall of a warship's gunfire). In 1934, the Air Ministry issued the more advanced Specification S.15/33, which formally added the torpedo bomber role.