The PBS TJ80-120 is a small subsonic

turbojet The turbojet is an airbreathing jet engine which is typically used in aircraft. It consists of a gas turbine with a propelling nozzle. The gas turbine has an air inlet which includes inlet guide vanes, a compressor, a combustion chamber, and ...

engine produced by a Czech turbine engine manufacturer

PBS Velká Bíteš Prvni brnenska strojirna Velka Bites, a. s. ("First Brno Engineering Plant", known as PBS VB) is a Czech Republic, Czech engineering and manufacturing company. It focuses mainly on the development, testing, and production of devices for the airc ...

Development

The engine has been developed for

unmanned aerial vehicles An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. UAVs are a component of an unmanned aircraft system (UAS), which includes adding a ground-based controller ...

, including

target drone A target drone is an unmanned aerial vehicle, generally remote controlled, usually used in the training of anti-aircraft crews. One of the earliest drones was the British DH.82 Queen Bee, a variant of the Tiger Moth trainer aircraft operationa ...

s, remote carriers, unmanned combat systems and disposable applications with weight ranging from 330-551 lb (150-250 kg). The PBS TJ80-120 has the best

thrust-to-weight ratio Thrust-to-weight ratio is a dimensionless ratio of thrust to weight of a rocket, jet engine, propeller engine, or a vehicle propelled by such an engine that is an indicator of the performance of the engine or vehicle. The instantaneous thrust-to-w ...

among

gas turbine engines A gas turbine, also called a combustion turbine, is a type of continuous flow internal combustion engine. The main parts common to all gas turbine engines form the power-producing part (known as the gas generator or core) and are, in the directi ...

with thrust more than 1,150 N. With a thrust 269 lbf (1,200 N) and weight 28.21 lb (12.8 kg) including the accessories, the thrust-to-weight ratio is currently 9.53.

Design

The PBS TJ80-120 is a small single-shaft

engine with a built-in brushless starter generator including the ECU. The engine is capable of ground and in-flight restart under 7 seconds and a windmill starting. The engine offers a possibility of salt water recovery.

Specifications

References

{{PBS Velká Bíteš aeroengines Aircraft engines Turbojet engines