Two of Robert Ludvigovich Bartini's aircraft designs are A-55, a Medium-range bomber flying boat, and the A-57, an experimental Soviet bomber of the mid-1950s that was designed to take off on land and water.
A-55 (Prototype) Medium-range bomber flying boat (1955) The Bartini A-57 was an experimental Soviet bomber of the mid-1950s that was designed by Robert Ludvigovich Bartini to take-off on land and water. A-57 (Draft) Jet-powered flying boat strategic bomber with a range of 14,000 kilometers (8,700 mi) (1957) 
