PBS TJ80-120

TJ80-120
TJ80-120
Type	Turbojet
National origin	Czech Republic
Manufacturer	PBS Velká Bíteš
First run	2021

The PBS TJ80-120 is a small subsonic turbojet engine produced by a Czech turbine engine manufacturer PBS Velká Bíteš.

Development

The engine has been developed for unmanned aerial vehicles, including target drones, remote carriers, unmanned combat systems and disposable applications with weight ranging from 330-551 lb (150-250 kg).^[1]^[2] The PBS TJ80-120 has the best thrust-to-weight ratio among gas turbine engines with thrust more than 1,150 N.^[3] 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 turbojet 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.^[1]

Specifications

Data from Manufacturer^[1]

General characteristics

Type: turbojet
Length: 636 mm (25.0 in)
Diameter: 235 mm (9.3 in)
Dry weight: 12.8 kg (28.2 lb)

Components

Compressor: axial
Oil system: fuel mixed with oil

Performance

Maximum thrust: 1,200 N (270 lbf)
Specific fuel consumption: 34.72 g/(kN⋅s) (1.226 lb/(lbf⋅h))
Thrust-to-weight ratio: 9.6:1

References

1 2 3 "Aircraft Engines | Turboprop/Turboshaft & Turbojet". PBS. Archived from the original on 11 August 2022. Retrieved 11 August 2022.
↑ "Farnborough 2022: PBS confirms four customers for its new turbojet engine". www.shephardmedia.com. Archived from the original on 23 November 2022. Retrieved 11 August 2022.
↑ Konowe, Celia. "PBS Unveils Turbine Engine for Unmanned Aerial Vehicles". Aviation International News. Archived from the original on 11 August 2022. Retrieved 11 August 2022.

[:0-1] 1 2 3 "Aircraft Engines | Turboprop/Turboshaft & Turbojet". PBS. Archived from the original on 11 August 2022. Retrieved 11 August 2022.

[2] "Farnborough 2022: PBS confirms four customers for its new turbojet engine". www.shephardmedia.com. Archived from the original on 23 November 2022. Retrieved 11 August 2022.

[3] Konowe, Celia. "PBS Unveils Turbine Engine for Unmanned Aerial Vehicles". Aviation International News. Archived from the original on 11 August 2022. Retrieved 11 August 2022.

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