Technical data
Type SB-2M-103
Function Bomber
Year 1938
Crew 4
Engines 2*960hp M-103
Length 12.27m
Wingspan 20.33m
Wing area 56.7m2
Empty weight 4427kg
Loaded weight 6175kg
Maximum weight 7750kg
Wing Load (kg/m2) 109
Power load (kg/hp) 3.2
Speed (0m) 358km/h
Speed (4000m) 419km/h
Speed (5200m) -
Turn Time/Radius 21...28sec/280m
Climb (4000m) 7.45min
Climb (5000m) 8.4min
Ceiling 9600m
Range 1800km
Take off 310m/15sec
Landing 400m/28.5sec
Armament
Guns 4*mg7.62mm ShKAS
Bombs (bay) 2*250kg or 6*100kg
Bombs (external) 2*250kg or 2*500kg

SB-2M-103, A.A.Arhangelsky/ A.N.Tupolev

Except more powerful engines, this version of the SB had more roomy navigator's compartment with second set of controls. New top turret was installed together with new aiming system for ventral gun.

Tailwheel was made steerable, electric and control systems were revised.

With new engines aircraft could sustain 2000m on speed 250km/h with one engine running. First series SB with provision for retractable skis.

Additional external hardpoints (for two 250kg or 500kg bombs) allowed to increase bombload to 1600kg.

International altitude record for 1937 was set by pilot M.Yu.Alekseev, who reached 12246.5m with 1000kg of load.



See related aircraft on the Main SB page;

References:
  • "History of aircraft construction in the USSR", Vol.2 p.15-16

  • Modified April 7, 1997 Back to
    Main Gate