title: Kuznetsov TV-022
text: # Kuznetsov TV-022
  
  The Kuznetsov TV-022 was the first Soviet turboprop engine, designed by the Kuybyshev Engine Design Bureau.
  
  ## Development
  
  Development of the TV-022 began in 1947 at the State Union Experimental Plant No. 2 near Kuybyshev. A team of both Soviet and deported German engineers worked on the project.
  
  The TV-022 was based on the uncompleted Junkers Jumo 022 turboprop designed by Junkers during the later stages of World War II.
  
  Factory tests of the TV-022 took place in June 1949 and state tests where passed in October 1950. The TV-022 featured a reduction gearbox (i=0.145) for two coaxial contra-rotating AB-41 propellers. The engine was started with a 50 kW "Rut" air starter.
  
  Modifications to the TV-022 resulted in the TV-2, which had more power (6,250 hp). The TV-2 was then further modified into the NK-12.
  
  ## Specifications (TV-022)
  
  Data from Otechestvennaya aviatsionno-kosmicheskaya tekhnika - SAMARSKIY NTK, and engine.aviaport.ru
  
  **General characteristics**
  
  * Type: Turboprop engine
  * Length: 4,170 mm (164 in) without propellers
  * Diameter: 1,050 mm (41 in) without propellers
  * Dry weight: 1,700 kg (3,700 lb)
  
  **Components**
  
  * Compressor: 14-stage compressor
  * Combustors: 12 annular combustion chambers made of heat resistant steel (EI417)
  * Turbine: 3-stage turbine, of which only the first and second stages are cooled
  
  **Performance**
  
  * Maximum power output:
     * 5,000 hp (3,700 kW); at takeoff
     * 2,200 hp (1,600 kW); in cruise
  * Overall pressure ratio: 5.6
  * Air mass flow: 30 kg/s (66 lb/s)
  * Turbine inlet temperature: 1,120 K (850 °C; 1,560 °F)
  * Specific fuel consumption: 0.21 kg/(hp⋅h)
  