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Vilem Juran
Vilem Juran
Vilem Juran
Sales Department | Engines



Jet Engine PBS TJ40-G1NS

The PBS TJ40-G1NS jet engine by PBS is built with a compact ‘Plug & Play’ design, making it the optimal engine for UAVs, target drones, and other small unmanned aircraft.

  • ‘Plug & Play’ design
  • Salt water recovery
  • Integrated starter-generator
  • Compact design
  • EASA standards
Our expert technicians at PBS have designed and developed the PBS TJ40-G1NS turbojet engine within the small turbojet engine category for UAVs, target drones and other small unmanned aircraft.

Its distinctive features include simple and compact design, low weight and plug & play solution (all components including ECU integrated in the engine body). The engine weighs only 3.6 kg and provides a maximum thrust of 425 N. The start-up sequence is advantageously short at less than 25 seconds and there is an easy and rapid kerosene starting system. The PBS TJ40-G1 can restart from the ground as well as in-flight and has unilimited starting position angles.

The PBS TJ40-G1NS small turbojet engine is a single-shaft engine with a one-stage radial compressor, radial and axial diffuser, annular combustion chamber, single-stage axial turbine and outlet nozzle. The output of the generator is 150 W. It is slightly more compact than the TJ40-G2, which is measures just 69 mm longer than the PBS TJ40-G1.



Standard accessories: fuel pump and filter, engine control unit (ECU), connecting cables, fuel hose, data terminal, battery (4s Li-Fe - 2,5 Ah), CAN connector

Technical parameters

Technical parameters Metric units Imperial units
Max. thrust 425 N  96 lbf
Fuel consumption 0.147 kg/N/H 1.442 lb/lbf/hr
Outer diameter 147 mm 5.79 in
Length 304 mm 11.97 in
Weight 3.6 kg 7.94 lb
Max. altitude for operating envelope 9,000 m 29,528 ft
Max. altitude for starting envelope 4,500 m 14,764 ft

Key parameters

Pyrotechnic ignition - under development

Pyrotechnic ignition - under development

The engine allows to start in seconds
Salt water recovery - under development

Salt water recovery - under development

The engine allows reuse after landing in salt water
Separate oil system - under development

Separate oil system - under development

This engine is lubricated by a separate oil system 

Why us?

Constant innovation and development

Constant innovation and development

The PBS aerospace and aircraft departments are never satisfied with what has worked in the past. Our expert team of engineers and designers are constantly looking for new and better ways to craft and create new jet engines which better suit the demands of our customers. We listen to what they have to say and develop new products which serve their needs.
International certification and licensed

International certification and licensed

PBS is proud to be certified and licensed by several national as well as international licensing boards, adhering to strict protocol and standards, including military aerospace product certification. For a list of all of our certificates and licenses, please see this page.

Service, spare parts and overhauls of aerospace technology

We provide service of the highest quality for all users of our aerospace technology products.

We have long been working to extend the service life of our products, e.g. by introducing new technologies to produce the most exposed parts. Our turbine-based aircraft equipment regularly receives very good references.