see Il-4. TsKB-54 Escort aircraft ("air cruiser"), 1938. Not accepted for service. TsKB-56 Bigger variant from 1940 with changed configuration (higher wing, twin-tail) and powered by two AM-37 engines. Cancelled, after two prototypes were built, in favour of the Er-2. DB-4 Production designation of the TsKB-56, which did not progress further than the two prototypes. Il-4 The DB-3F was redesignated Il-4 in 1942 Il-6 Long-range bomber version powered by either 2 x Charomskiy ACh-30 diesel engines, or 2 x M-90 radial engines. Operators Chinese Nationalist Air Force Finnish Air Force Lentolaivue 46 Lentolaivue 48 Luftwaffe Soviet Air Force Soviet Naval Aviation Survivors The only known surviving DB-3 is currently displayed at the Central Air Force Museum at Monino, near Moscow, Russia. The aircraft was found in taiga forests, 120 km from Komsomolsk-on-Amur. It was recovered in September 1988 and brought to the Irkutsk Aircraft Industrial Association (IAIA) factory on board an Ilyushin Il-76 transport. After over a year of restoration, the aircraft was delivered to Monino on board an Antonov An-22. On 22 December 1989, representatives of IAIA, headed by V.P. Zelenkov, handed over the DB-3 to museum officials. This aircraft should not be confused with the Ilyushin Il-4 (cn 17404) exhibited in the Victory Park collection of the Central museum of Great Patriotic War, Moscow. Specifications (DB-3B, late production) See also Notes Bibliography External links Photos of DB-3 and Il-4 on Aviation.net website DB-3 1930s Soviet bomber aircraft Low-wing aircraft Aircraft first flown in 1935 Twin piston-engined tractor aircraft