Tupolev Tu-4 is a completely independent metric copy of the Boeing B-29 bomber. Despite the fact that Tupolev had been developing a similar project "64" (Tu-80) since 1945, Stalin, realizing the need to modernize the aviation industry in the destroyed post-war Soviet Union, insisted on copying B-29.
First flight: 19 May 1947
Officially in service since 1949 (ending from the beginning of the 60s)

number built in aviation factories:
factory №22: 17(in 1948), 120(in 1949), 177(in 1950), 191(1951), 150(in 1952)
factory №18: 41(in1949), 108(1950), 150(in 1951), 166(in 1952), 15(in 1953)
factory №23: 27(in 1950), 80(in 1951), 52(in1952), 1(in 1953)

total Tu-4: 1.295