The general arrangement drawing above depicts the Tu-4 in the form proposed with TV-4 turboprops, the lower sideview illustrating the alternative version with TV-02s.
The Tu-80 was a refined derivative of the Tu-4 with "wet" wing and lighter structure
The drawing shows the interior arrangement of the proposed production version of the Tu-80. It will be noted that the forward upper gun barbette was to have been semi-retractable.
The Tu-80 was essentially similar to the Tu-4 apart from the lengthened fuselage nose, enlarged vertical tail surfaces and other design refinements.
The Tu-85 remains dimensionally the largest aircraft ever built in the Soviet Union, and was the last combat aircraft of Soviet design to be powered by piston engines.
В 1951 году поднялся в воздух созданный в КБ А. Н. Туполева стратегический бомбардировщик Ту-85
Опытный межконтинентальный бомбардировщик Ту-85
The general arrangement drawing of the Tu-85 reveal clearly its B-29 ancestry. Experience gained in the development of this immense aircraft was used in the design of the turboprop-powered Tu-95 which was to enter V-VS service as the Tu-20.