More on LaGG-3 S.A.Lavochkin, V.P.Gorbunov and M.I.Goudkov


Here you can find more data on modifications designated LaGG-3 Series **;

Speed drop for Type 4 took place due to poor quality assembly during first months of the war;

Production :

Attack versions (11 and 23 Series), armed with rockets and bombs had speed drop ~25km/h; 23 series had new rudder and some other minor differences;

28 Series was a small batch to test retractable tailwheel;

33 Series had new propeller with slightly re-shaped spinner and slightly different rudder (improved hinges);

34 Series (fall 1942) carried 37mm NS-37 weapon with 20 rounds. Intended for anti-tank missions, it had worser flying characteristics due to cannon weight. Fuselage damage by severe recoil also was a restriction. Only one production batch rolled out...

35 Series was equipped with automatic slats (previously tested on 22 Series) to improve stall/landing characteristics, also differed by retractable tailwheel;


Sources:
  • "History of aircraft construction in the USSR", Vol.2 p.216-218;
  • "LaGG fighters in action" by Don Greer & Ernesto Cumpain;
  • LaGG-3

  • Technical data for the most produced LaGG-3 modification
    Type
    LaGG-3 series
    1-3 4-7 8 11/23 29/33 35 66
    Function Fighter Close support Fighter
    Year 1941 Spring 1941 Summer 1941 Late 1942 Early 1942 June 1942 August 1943 Spring
    Engines 1*1050hp M-105P 1*1050hp M-105PA 1*1180hp M-105PF
    Maximum Weight 3346kg 3280kg - - 3160kg 3160kg 2990kg
    Power Load 3.29 3.12 - - 2.68 2.53
    Speed at 0m 498km/h - - - 507km/h 507km/h 542km/h
    Speed 575km/h (at 5000m) 545km/h (at ????m) - - 566km/h (at 2700m) 566km/h (at 2700m) 591km/h (at 3560m)
    Turn time 20sec - - - - - 19sec
    Climb to 5000m 6.8min - - - - - 5.6min
    Ceiling 9500m - - - - 10000m 9600m
    Range 1100km 870km - - - 910km 650km
    Armament
    Guns 3*mg12.7mm UB(S) 220rpg
    2*mg7.62mm ShKAS 325rpg
    1*mg12.7mm UB(S)
    2*mg7.62mm ShKAS 325rpg
    1*g20mm ShVAK
    1*mg12.7mm UB(S)
    1*g20mm ShVAK or
    1*g23mm VYa
    1*mg12.7mm UB(S)
    1*g20mm ShVAK or
    1*g23mm VYa
    1*mg12.7mm UB(S)
    1*g20mm ShVAK
    Bombs - - - 2*50kg - - -
    Rockets - - - 6*RS-82 or RS-132 - - -
    Chemical - - - 38l gas/phosphorus dispenser - - -
    Modified May 28, 1997 Back to
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