Technical data
Type La-174, La-174D
Function Fighter Prototype
Year 1948
Crew 1
Engines 1*1590kg Dervent-V
Length 9.56m
Wingspan 8.83m
Wing area 16.16m2
Empty weight 2423kg
Loaded weight 3708kg
Wing Load (kg/m2) 230
Thrust
to
Weight
0.43
Speed at 0m 900km/h
Speed at 3000m 1040km/h
Range 1300km
Flight Endurance 2h28min
Ceiling 14600m
Climb
5000m 3.0min
Armament
Guns 3*23mm cannons NS-23

La-174, La-174D (Type 21) by S.A.Lavochkin

La-174 and La-174D ('D' for Dublior, the second prototype) was lighter and smaller development of the La-168 (Type 15). Despite less fuel capacity (1110l inside and 605l in conformal underbelly tank), flight endurance was longer than one of the predecessor due to more economical engine.

Flight tests in August-September 1948 were successful from the beginning, and mass production of the La-174D started in August 1948 (before end of trials!) under designation La-15.

PredecessorsModifications

La-168
Type 15

La-15

ReferencesLinks
  • "History of aircraft construction in the USSR", Vol.2 p.351-352;
  • La-174D, Lavochkin
  • Lavochkin aircraft at WWW.AVIATION.RU

  • Modified February 22, 1998
    Alexandre Savine
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