PBS TJ80-120

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.

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]

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