Polikarpov TB-2

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TB-2
Polikarpov TB-2.jpg
Role Bomber
National origin Soviet Union
Manufacturer Polikarpov
First flight 1930
Number built One

The Polikarpov TB-2 (Russian: Поликарпов ТБ-2) was a Soviet heavy bomber prototype designed and tested in the 1920s. It was a wooden-construction sesquiplane with engines mounted on the bottom wing. Work on the sole prototype began in 1927 and it was tested in 1930. Although TB-2 performance was superior to that of the Tupolev TB-1 in service at the time, it was deemed insufficient for 1930 and the project was abandoned.[1]

Specifications (TB-2)[edit]

Data from Shavrov 1985[1]

General characteristics

  • Crew: 5
  • Length: 17.6 m (57 ft 9 in)
  • Wingspan: 27 m (88 ft 7 in)
  • Height: ()
  • Wing area: 128 m² (1377.8 ft²)
  • Empty weight: 4,220 kg (9,304 lb)
  • Loaded weight: 6,770 kg (14,925 lb)
  • Powerplant: 2 × BMW VI V12 engines, 373 kW (500 hp) each

Performance

  • Maximum speed: 216 km/h (117 knots, 134 mph)
  • Range: 1,200 km (648 nm, 746 mi)
  • Service ceiling: 6,800 m (22,310 ft)
  • Wing loading: 53 kg/m² (11 lb/ft²)
  • Power/mass: 110 W/kg (0.07 hp/lb)
  • Time to altitude: 12 min to 3,000 m (9,840 ft)
  • Horizontal turn time: 26 sec
  • Takeoff roll: 210 m (688 ft)
  • Landing roll: 180 m (590 ft)

References[edit]

  1. ^ a b Shavrov V.B. (1985). Istoriia konstruktskii samoletov v SSSR do 1938 g. (3izd.) (in Russian). Mashinostroenie. ISBN 5-217-03112-3.