The Tupolev Tu-80 (Russian: Туполев Ту-80) was a Soviet prototype for a longer-ranged version of the Tupolev Tu-4 bomber, an unlicensed, reverse engineered copy of the Boeing B-29 Superfortress. It was cancelled in 1949 in favor of the Tupolev Tu-85 program which offered even more range. The sole prototype was used in various test programs before finally being used as a target.
The Tu-80 was designed as a modernized and enlarged Tu-4 with greater range. This was to be achieved by the use of more fuel-efficient engines, better aerodynamics and added fuel tanks. It was intended to have a range of 7,000–8,000 kilometres (4,300–5,000 mi) and carry a maximum bombload of 12,000 kilograms (26,000 lb) with a top speed of 620 kilometres per hour (390 mph). Work began on the design in February 1948 and this was confirmed by a Council of Ministers order of 12 June that required the prototype be ready for State acceptance trials in July 1949.
Stats
Crew: 11
Maximum speed: 545 km/h (339 mph, 294 kn)
Range: 8,214 km (5,104 mi, 4,435 nmi) estimated
Service ceiling: 11,180 m (36,680 ft)
Stall speed: 160–180 km/h (99–112 mph).





