Lyulka TR-1
# Lyulka TR-1

The Lyulka TR-1 was a turbojet designed by Arkhip Lyulka and produced by his Lyulka design bureau. It was the first indigenous Soviet jet engine.

## Development

In May 1944 Lyulka was ordered to begin development of a turbojet with a thrust of 12.3 kN (2,800 lbf). He demonstrated an eight-stage axial-flow engine in March 1945 called the S-18. In early 1946 the Council of Ministers ordered that the S-18 be developed into an operational engine with a thrust of 15.5 kN (3,500 lbf). The TR-1 was developed in early 1946 and had its first static run on 9 August. It was tested in the air on a pylon fitted to a Lend-Lease B-25 Mitchell piston-engined bomber.

The TR-1 was not a success, proving to have less thrust and a higher specific fuel consumption than designed. Its failure led directly to the cancellation of the first Soviet jet bomber, the Ilyushin Il-22. Lyulka further developed the engine into the TR-1A of 20.5 kN (4,600 lbf) of thrust, but its specific fuel consumption was very high and it too was cancelled.

## Applications

* Alekseyev I-21
* Ilyushin Il-22
* Mikoyan-Gurevich MiG-9 I-305 (izdeliye FT)
* Sukhoi Su-10
* Sukhoi Su-11

## Specifications (TR-1)

Data from Gordon, OKB Ilyushin: A History of the Design Bureau and its Aircraft.

**General characteristics**

* Type: Turbojet
* Length:
* Diameter:
* Dry weight: 885 kg (1,951 lb)

**Components**

* Compressor: eight-stage axial-flow
* Turbine: single stage

**Performance**

* Maximum thrust: 12.8 kN (2,900 lbf)
* Specific fuel consumption: 129 - 137 kg/kN·h (1.27-1.35 lb/lbf·h)
* Thrust-to-weight ratio: 1.47
