Kuznetsov TV-022
# 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)
