Technical data
Type LaGG-3 series 1-3 LaGG-3 series 66
Function fighter
Year 1941 1943
Crew 1
Engines 1*1050hp M-105P 1*1180hp M-105PF
Wing Span 9.80m
Length 8.81m
Height 4.40m
Wing Area 17.62m2
Empty Weight 2680kg 2990kg
Maximum Weight -kg 2990kg
Wing Load (kg/m2) 190 170
Power Load 3.29 2.53
Speed at 0m 498km/h 542km/h
Speed 575km/h (at 5000m) 591km/h (at 3560m)
Turn time 20sec 19sec
Climb to 5000m 6.8min 5.6min
Ceiling 9500m 9600m
Range 1100km (870km?) 650km
Guns 3*mg12.7mm UB(S) 220rpg
2*mg7.62mm ShKAS 325rpg
1*mg12.7mm UB(S)
1*g20mm ShVAK

LaGG-3 / I-301, S.A.Lavochkin, V.P.Gorbunov and M.I.Goudkov

12k picture from collection by Vadim Krivosheyev 'Watson';

Refined LaGG-1, with palliative introduced to cure the worst faults of the LaGG-1. The LaGG-3 had outer wings with slats and balanced tail elevators, was lighter, and later also had a more powerful engine. It still was disliked intensely by its pilots. Production problems continued, some factories delivering unairworthy aircraft. Series production aircraft were up to 40km/h slower than those tested by the (table presents the mass production model data).

All fighters by S.A.Lavochkin were 250-300kg heavier than Yakovlev's, due to wooden construction and generally worser 'weight culture'. But they were way more sturdy and reliable. Fuel tanks were self-sealing, equipped with inert gas (exhaust) pumping system.

Only 322 were ready on June 22, 1941.

Development resulted in 21 major versions (66 total), all simply called LaGG-3.

In production until 1943, 6258 built.

16k model photo from Nizhny Novgorod Aircraft Building Plant JSC site

  • LaGG-3 Light had mass reduced by improving of structure and cutting down weapons.
  • 105 - more weight savings, cut-down aft fuselage;
  • Gu-82 - modification for radial engine (Su-2 powerplant) with minimal possible changes in design;
  • LaG-5 - modification for radial engine, similar (and often mistaken for) the La-5;
  • La-5 - 'live branch' of the radial engine powered modifications;
  • LaGG-5 - designation, widely used by Western sources, but NEVER found in serious Soviet archives;
  • K-27 modification carried coaxial 37mm ShK cannon firing through propeller (M.I.Goudkov).

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

  • More Links...
  • LaGG-3
  • LaGG-3 at Michael Fletcher's Site;
  • LaGG-3, Lavochkin, Gorbunov and Goudkov
  • LaGG-3 at Virtual Aircraft Museum
  • Soviet Warbirds
  • modeling LaGG-3

  • two 15k photos of my 1/72 LaGG-3 model
    Another drawing from collection by Vadim Krivosheyev, used to make a background for this page;

    Modified May 28, 1997 Back to
    Main Gate