Aviation of WWII
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Glossary USSR Lavochkin LaGG-3 La-5 La-5F La-5FN La-5UTI La-7 La-9 La-11 Photos & Drawings

La-5FN

Fighter

Lavochkin

The La-5FN (95 board number) on the LII airfield

The La-5FN (95 board number) on the LII airfield.

The aircraft La-5FN - the improved version of fighter La-5. At creation of this airplane designers realized all actions on improvement of aerodynamics, recommended TsAGI on the basis of extensive researches in wind tunnels, have reduced a structure weight and have put new more high-power motor M-82FN (since 1944, ASh-82FN).

The La- 5FN, perfectly kept in a steep turn and had not only high speed and a rate of climb, but also extremely good manoeuvrable data. The La-5FN have got on front in the summer of 1943 and participated in battle on the Kursk arc. Air fights have shown the superiority of La-5FN over the best modifications of German fighters. On the fighting capacity of La-5FN in 1943 became the strongest fighter of air fight on the Soviet-German front. It is possible to note N.Kozheduba's who has gained on the La-5 of 45 victories the most productive Soviet expert.

In total, the fighters La-5 in different modifications were built in quantity 10003 during 1942-1944.

Lavochkin
La-5 La-5F La-5FN La-5UTI
Dimensions
Length, m 8.672 8.672 8.672 8.672
Wing span, m 9.8 9.8 9.8 9.8
Wing area, m² 17.62 17.62 17.62 17.62
Weight
Empty weight 2681 - 2828 -
Loaded weight 3360 3200 3290 3210
Maximum takeoff weight 3460 3300 3390 -
Powerplant
Engine M-82A M-82F M-82FN M-82F
Engine power, hp 1700 1700 1850 1700
Performance
Maximum speed, km/h at altitude 600 m 509 560 583 552
at altitude 580 600 634 600
m 6250 6300 6250 3500
Rate of climb at sea level, m/s - 18 22 -
Time to 5000 m, min 6.0 5.50 5.2 -
Time of turn, s 22.6 19-20 18.5 19
Service ceiling, m 9500 9550 10750 -
Service range, km 1190 - - -
Armament
20-mm Cannon x cart. 2 x 220 2 x 200 2 x 170 1 x 170
Bombs, kg 2х50 2х50 2х50 -

References

  • "The history of designs of planes in USSR 1938-1950" /Vadim Shavrov/
  • "Planes of Stalin falcons" /Konstantin Kosminkov and Dmitriy Grinyuk/
  • "Soviet aircraft of World War II" /V. E. Yudenok/
  • "The Soviet planes" /Alexander Yakovlev/

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