Tupolev ANT-22 or MK-1 with six 619kW M-34R engines was a long-range bomber reconnaissance flying-boat, its twin-hull design clearly inspired by the Italian Savoia-Marchetti S.55. Test flown for the first time on 8 August 1934, it established several weight-to-height world records in December 1936, but was abandoned soon afterwards.
Tupolev TB-3 heavy bomber aircraft which was deployed by the Soviet Air Force in the 1930s and during World War II.
Tupolev ANT-25 was a Soviet long-range experimental aircraft. First constructed in 1933, it was used by
the Soviet Union for a number of record-breaking flights.