Technical data
Type LB-2LD
Function Bomber
Year 1926
Crew 4
Engines 2*240hp Fiat
Length 16.0m
Wingspan 23.0m
Wing area 140.0m2
Empty weight 3200kg
Loaded weight ~6200kg
Wing Load (kg/m2) 44
Power load (kg/hp) 7.7
Speed at 0m 150km/h

LB-2LD (B-1, TB-1), L.D.Kolpakov-Miroshnichenko

16k b/w drawing "History of aircraft construction in the USSR", Vol.1 p.352

Heavy bomber, designed for two 450hp Lorraine-Dietrich engines. It was flown only with 240hp Fiat powerplants, and designation was 'reduced' to LB. Design of this large wooden (except steel wing struts) biplane was derived from 1917 Lebed-Grand (Lebed-XIV) aircraft.

LB-2LD had three defensive gunner positions - one in the nose and two (dorsal and ventral) right aft the wing.

First flights (K.K.Artseulov and Ya.G.Paul) revealed visible deformations of the fuselage (tail twisting) near rear gunners positions. Serious doubts forced team to carry out destructive load trials. LB-2LD withstood 115% of calculated strength.

LB-2LD was not restored and did not enter production, because much more advanced A.N.Tupolev's ANT-4 (also designated TB-1) was in pre-production status.



  • "History of aircraft construction in the USSR", Vol.1 p.352;
  • None

  • Created July 27, 1998 Back to
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