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La-7

Fighter

Lavochkin

The La-7 from 9-th Guards Fighters Wing 303-rd Division on which major V.D.Lavrenkov flied at winter, 1944-45.

The La-7 from 9-th Guards Fighters Wing 303-rd Division on which major V.D.Lavrenkov flied at winter, 1944-45.

The tests of the new fighter La-7 was started in the beginning of 1944 . The airplane differed the facilitated design (at last and on airplanes of La metal spars have appeared), reinforced armament and the best aerodynamic properties. On high-speed qualities the airplane has essentially surpassed La-5FN.

On the production machines it was not possible to take into account only one recommendation reflected in the conclusion about passage by a fighter - on an airplane there was no automatic control unit of operation control of an engine-screw combination. That on FW-190 was operated by moving of one lever, on La-7 demanded manipulations of eight controls. To simplify operation control of an engine-screw combination it was possible only on La-7 from factory number 38101356 which tests passed from March, 20 till April, 8, 1945.

It was the most perfect fighter of Semyon Lavochkin and one of the best warplanes of the WW II.

In total, the fighters La-7 were built in quantity 5905 during 1944-1945.

WW 2 Soviet Fighters
Yak-9 Yak-9U Yak-3 La-5 La-5FN La-7
Year of issue 1942 1944 1944 1942 1943 1944
Dimensions
Length, m 8.48 8.5 8.5 8.67 8.67 8.67
Wing span, m 9.74 9.74 9.2 9.8 9.8 9.8
Wing area, m2 17.15 17.15 14.85 17.5 17.5 17.56
Weight, kg:
Maximum takeoff weight 2870 3204 2697 3360 3290 3310
Powerplant
Engine M-105PF VK-107A VK-105PF2 M-82 M-82FN ASh-82FN
Power, hp 1210 1650 1290 1700 1850 1850
Performance
Maximum speed, km/h at sea level 520 575 567 509/535* 551/583* 579/613*
at altitude 599 672 646 580 634 661
m 4300 5000 4100 6250 6250 6000
Time to 5000 m, min 5.1 4.4-5.0 4.5 6.0/5.7* 5.3/4.7* 5.25/4.6*
Time of turn, sec 17-18 19 17 22 19-20 19
Service ceilling, m 11100 10650 10400 9500 10000 10450
Service range **, km 660 675 550 660 590 570
Armament
Cannon 1 1 1 2 2 3
Machine guns 1 2 2 - - -

* Forcing of the engine during 10 minutes.

** On speed making 90 % from maximal.

Photo Description

La-7. Prototype 1944

The first production copy of La-7 plant number 381

La-7 with synchronous cannons NS-23

La-7 number 38105758 plant number 381

La 7 of 176 IAP

Training La-7 # 45211521. Photo of Vahlamov archives

Training La-7 # 46210514. A general view of the cockpit instructor.

Training La-7 # 46210514. A general view of the cockpit of the cadet.

Training La-7 in the assembly shop of the Gorky aircraft plant

References

  • "The history of designs of planes in USSR 1938-1950" /Vadim Shavrov/
  • "Planes of Stalin falcons" /Konstantin Kosminkov and Dmitriy Grinyuk/
  • "The Soviet planes" /Alexander Yakovlev/

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