GTD-1250 GAS-TURBINE TANK ENGINE
The GTD-1250 is designed to power the T-80U main battle tank and various wheeled (tracked) vehicles. The
engine features large gas-dynamic stability margins, increased service life, high reliability, as well as
enhanced repairability and simplicity of maintenance. The design incorporates unique engineering solutions:
automatic systems intended to remove dust deposits from cover plates of the radial-flow compressor
impellers and from the high-pressure turbine nozzle assembly; variable power turbine nozzle assembly;
integrated reduction gearbox. The engine can be provided with positive-displacement hydraulic transmission
intended to enhance the maneuvering and speed characteristics of the battle tank. The GTD-1250 is a multi-
fuel engine: it can operate on diesel fuel, kerosene, gasoline and their mixtures.
The engine’s main features are: a gas generator with the low- and high-pressure turbocompressors; radial-
flow, enclosed, unit-cast compressor impellers provided with cover plates; reverse-flow, multi-injector, annular combustion chamber; single-stage axial-flow turbine of the high-pressure compressor with the cooled noz-
zle assembly; single-stage axial-flow turbine of the low pressure compressor; single-stage axial-flow power
turbine with the variable nozzle assembly; exhaust pipe with exhaust gas efflux turning coaxially with the longi-
tudinal engine axis; thermal insulation of the hottest engine housing components and exhaust pipe.
Provision is also made for the installation of an oil tank, electric power generator, air cleaner with built-in air-oil
coolers and cooling fans.