La-156 (Type 5) by S.A.Lavochkin

12k picture from The Jet Genesis

Rebuilt La-152 to accomodate more powerful version of RD-10F with afteburning trust 1350 kg. Fuel capacity was increased, as well as wing and tais surfaces. Intended as a front line fighter.
Flirst tests (pilots S.F.Mashkovskij and I.E.Fedorov) took place in February-March 1947. State trials in the NII VVS during September 5, 1947 - January 31, 1948. La-156 speed exceeded 900 km/h. But it was also obvious that straight wing stays on the way of faster aircraft.

"History of aircraft construction in the USSR" by V.B.Shavrov, Vol.2 p 348

S.A.Lavochkin already was working on swept-wing La-160. At the same time the La-174TK became the last attempt to improve straight-wing design by employing very thin wing profile.
Predecessors Modifications

La-152

La-174TK

 La-160

References Links
  • "History of aircraft construction in the USSR" by V.B.Shavrov, Vol.2 pp.349;
    		•
  • La-156, Lavochkin
  • La-156 at The Jet Genesis
  • Lavochkin aircraft at WWW.AVIATION.RU
    		• Technical information
    Type La-156
    Function Experimental Fighter
    Year 1947
    Crew 1
    Engines 1*1350kg RD-10F
    Length 9.12 m
    Wingspan 8.52 m
    Wing area 13.32 m2
    Empty weight 2398 kg
    Loaded weight 3521 kg
    Wing load 264 kg/m2
    Trust
    Weight    		 0.383
    Speed at 0m 845 km/h
    Speed at 2000m 905 km/h
    Flight endurance 0.9 h
    Range 660 km
    Ceiling 10700 m
    Climb
    5000m 4.0 min
    Armament
    Guns 2*cannons 23mm NS-23
    Created January 25, 1996
    by Alexandre Savine
    Modified February 16, 1998
    by Alexandre Savine