Technical data
Type La-174TK
Function Experimental Fighter
Year 1948
Crew 1
Engines 1*1590kg NII-1
Length 9.41m
Wingspan 8.64m
Wing area 13.52m2
Empty weight 2310kg
Loaded weight 3315kg
Wing Load (kg/m2) 246
Speed at 0m 970km/h
Speed at 5000m 965km/h
Range 960km
Flight Endurance 1h30min
Ceiling 14600m
5000m 2.5min
Guns 3*23mm cannons NS-23

La-174TK by S.A.Lavochkin

20k La-174TK on snow covered airfield form The Jet Genesis

Experimental fighter, development of the La-156 with thin non-swept wing (TK stays for Tonkoe Krylo, Thin Wing).

More powerful engine (1*1590kg NII-1) was installed.

Trials in early 1948 proved that straight wing has no chances to compete with swept one at high flight speeds. All steed against the La-156 was gained due to new powerplant. La-174TK was the last straight-wing aircraft of S.A.Lavochkin team.

One built.

8k color drawing form The Jet Genesis


None. Last of the line.

  • "History of aircraft construction in the USSR", Vol.2 p.349;
  • La-174TK, Lavochkin
  • La-174TK at 'Novik'
  • La-174TK at The Jet Genesis
  • Lavochkin aircraft at WWW.AVIATION.RU
  • 32k b/w La-174TK from "History of aircraft construction in the USSR", Vol.2 p.350

    Modified February 23, 1998 Back to
    Main Gate