In 1928, Sir Alliot Verdon Roe sold Avro. He bought an interest in S. E. Saunders, flying boat manufacturers based at Cowes, Isle of Wight, southern England; the company was renamed Saunders-Roe. The A17 Cutty Sark was the new company's first design. It was a shoulder-winged twin-engined four-seat amphibian monoplane with an all-metal hull and plywood covered wings. The above-wing pylon-mounted engines could easily be changed, and a variety of different engines were used to power Cutty Sarks, including 104 hp Cirrus Hermes Mk 1s and 120 hp de Havilland Gipsy IIs. The Saro A19 Cloud was developed from this design.
A17/1 : The prototype G-AAIP was first flown July 4, 1929. Bought by Captain Campbell Shaw and Flight Lieutenant Tommy Rose for Isle of Man Air Services. Returned to Cowes in 1933 after being damaged by floating timber.
A17/3 : aka "L3". Sold to the RNZAF. It was first flown on 3 March1930, then shipped to New Zealand aboard the SS Mataroa where it was reassembled by 28 May1930. It operated from Hobsonville, Auckland for the next six years. After 221 hours and 5 minutes flying time it was judged worn out beyond economic repair. L3 made its last flight on 23 November1936, after which it served as an instructional airframe. It was scrapped in 1939.
A17/4 : G-AAVX before being sold to Canada as VR-SAA in 1930.
A17/5 : G-ABBC named "Progress I" operated out of Blackpool to the Isle of Man by British Amphibious Airlines. Attempts to replace it with an A.19 Cloud after 1933 were blocked due to SARO's decision to operate an airline from the Isle of Man.