The Petlyakov Pe-8 was a Soviet heavy bomber designed before World War II, and the only four-engine bomber the USSR built during the war. Produced in limited numbers, it was used to bomb Berlin in August 1941. It was also used for so-called "morale raids" designed to raise the spirit of the Soviet people by exposing Axis vulnerabilities. Its primary mission, however, was to attack German airfields, rail yards and other rear-area facilities at night, although one was used to fly the People's Commissar of Foreign Affairs Vyacheslav Molotov from Moscow to the United States in 1942.
The Ilyushin Il-30 was a Soviet turbojet-powered tactical bomber designed as a higher-performance, swept wing version of the Ilyushin Il-28, in the late 1940s. Its thin wing and engine nacelles necessitated the use of tandem landing gear, the first Soviet aircraft to do so. It was apparently canceled before the prototype made its first flight, although sources disagree with this.
The Beriev Be-6 was a flying boat produced by the Soviet Beriev OKB. It was capable of accomplishing a wide variety of missions, such as long-range maritime reconnaissance, coastal and supply line patrols, torpedo/bombing strikes, mine-laying, and transport operations.
The Chyetverikov MDR-6 was a 1930s Soviet Union reconnaissance flying-boat aircraft, and the only successful aircraft designed by the design bureau led by Igor Chyetverikov.
The Tupolev MTB-1 was a patrol flying boat built in the Soviet Union in the mid-1930s. It was a refined version of the unsuccessful Chyetverikov MDR-3. The revised design retained the MDR-3's hull, but added a newly designed, full-cantilever wing, a new tail, and a new engine installation featuring two tractor and one pusher unit. Trials began in March 1934 but the prototype was destroyed during one takeoff.
The ANT-8 was an experimental flying boat designed by Tupolev. It was designated the "MDR-2" by the military.
The Tupolev Tu-12 was an experimental Soviet jet-powered medium bomber developed from the successful piston-engined Tupolev Tu-2 bomber after the end of World War II. It was designed as a transitional aircraft to familiarize Tupolev and the VVS with the issues involved with jet-engined bombers.
The Tupolev ANT-22 was a large flying boat built in the Soviet Union in 1934. A huge aircraft consisting of two hulls and powered by six engines in three nacelles in a push-pull configuration, it was based on the ANT-11, which was never built. Its enormous weight severely crippled its performance, and it never proceeded beyond the experimental stage.
The Nikitin MU-4 was an amphibian trainer aircraft produced in the USSR in 1936.
The DAR, was a twin-engined flying boat designed and produced in the USSR from 1934.
The MDR-3 (a.k.a.11) was a long-range flying boat designed and built in the USSR from 1931.
The SPL was a submarine borne flying boat designed and built in the USSR from 1931.
The TA was an amphibious transport designed and built in the USSR in 1945.
The Bolkhovitinov DB-A was a heavy bomber aircraft designed and built in the USSR from 1934.
The Polikarpov VIT-1 was a Soviet twin-engined multi-purpose aircraft developed before World War II. One prototype was built in 1937, with an extremely heavy armament for ground attack duties. That was the only example built as it was decided to revise the design with more powerful engines as the VIT-2.
The Polikarpov VIT-2 was a Soviet twin-engined ground attack aircraft developed before World War II. A single prototype was built in 1938 for evaluation purposes. Although a promising design it was recommended that it be introduced into production as a high-speed dive bomber with a reduced armament to increase its speed.
The Polikarpov NB was a Soviet twin-engined bomber designed during World War II. Only a single prototype had been built before the program was terminated upon the death of Nikolai Nikolaevich Polikarpov, the head of the aircraft's design bureau, in 1944.
The Beriev MDR-5 (sometimes Beriev MS-5) was a Soviet long-range reconnaissance/bomber flying boat prototype developed by the Beriev design bureau at Taganrog. It did not enter production as the rival Chyetverikov MDR-6 was preferred.
The ARK-4 was a single-engine Soviet flying boat design produced by Chyetverikov.
The Moskalyev SAM-11 was an amphibious version of the SAM-5bis-2, with a flying boat hull, retractable landing gear and raised engine and tail to avoid spray. Only one was built.
