Technical data
Type Dubler TB-1 /ANT-4-bis (Pre-production Prototype)
Function Bomber prototype
Year 1929
Crew 6
Engines 2*500/680hp BMW-VI
Length 18.00m
Wingspan 28.7m
Wing area 120.0m2
Empty weight 4432kg
Loaded weight 6722kg
Wing Load (kg/m2) 56.0
Power load (kg/hp) 4.94/6.72
Speed at 0m 202km/h
Speed at 3000m156km/h
Landing Speed 85km/h
Landing Roll 170m
15sec
Takeoff Roll 200m
16sec
Turn time 31sec
Ceiling 4700m
Climb
1000m 5.5min
2000m 11.9min
3000m 19.5min
4000m 29.3min
Armament
Guns 6*7.62mm DA-2
Bombs 1000kg inside

Dubler TB-1(ANT-4)-bis by A.N.Tupolev

Pre-production TB-1 with BMV-VI engines was ready in July 1929. Trial program was fulfilled on October 19 without any problems, and mass production started. Now it was fully armed bomber with 3 DA-2 twin-machinegun turrets, men crew and 1000kg internal bombload.

During Winter 1929- 1930 series of flights with variety of payloads were performed (pilots M.M.Gromov, P.M.Stefanovskij, A.B.Yumashev).

PredecessorsModifications
TB-1/ANT-4 Dubler
TB-1/ANT-4 Series

ReferencesLinks
  • "History of aircraft construction in the USSR", Vol.1 p.372-373;
  • ANT-4 / TB-1 at the Virtual Aircraft Museum
  • ANT-4, Tupolev
  • TB-1, Tupolev

  • Created April 13, 1998 Back to
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