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Frank A. Jones
Frank A. Jones
Manager, Business Development


The PBS TJ100 jet engine is the most successful product in the PBS AEROSPACE engine portfolio. The engine is an essential part of many UAV projects in the US market and PBS has many years of experience with its application in manned experimental aircraft. The jubilee one thousandth engine, which belongs to the 4th generation of this engine type, has just been delivered to our customer.
Beginning of development

The engine excels in its compactness, low weight, reliability and low fuel / oil consumption. All engine systems except for ignition are integrated in the engine. The development of PBS jet engines began in 2001 and serial deliveries started in 2004.

Progressive development resulted in a number of variations of the engine which were customized to specific customer projects. The company managed to increase thrust from the originally designed 1,000 N to 1,250 N, extended the time between overhaul (TBO) from 50 h to 300 h and increase the flight envelope to 10 km. The PBS TJ100 engine is currently offered in sixteen basic versions, like the one without an independent oil system or the version for repeated landing in salt water.

Engine installation

The PBS TJ100 is a single-shaft jet engine with one-stage radial compressor, ring combustion chamber, one-stage axial turbine, oil system, fuel system and electrical system devices are also included in its basic configuration.

The oil system ensures bearing lubrication of the main rotor bearings. The fuel system ensures the supply of fuel to the combustion chamber. The main electrical system includes the engine control unit (FADEC). This unit controls and monitors the safe operation of the engine including its starting, maintaining the required speed and correcting the maximum shaft speed. The engine has a starter generator, an ignition exciter system and a power supply unit with DC-DC converter for up to 750 W.

Castings of turbine impellers and guide wheels are the most sophisticated components supplied by PBS Investment Casting Division. These are technically challenging castings operating at temperatures of up to 880 °C. These components are cast from a special nickel IN 713LC alloy.


Customers appreciate not only the technical features and proven reliability of the engines, but also the ability of PBS to respond to specific customer requirements and customize the engine for a specific application.

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