ZT J40 turbojet engine on assembly bench with tools
Airbreathing Jet Engines

ZT J Series Turbojet Engines

  • Compact turbojet engines delivering high thrust for UAVs, target drones, and light aerial platforms.
  • High thrust-to-weight ratio with optimised diffuser stage for additional efficiency.
  • Spool up from idle to maximum RPM in under four seconds for rapid throttle response.
  • Support for manual, air-start, or electric start for flexible integration.
  • Streamlined design fits demanding space-constrained installations without performance trade-offs.

Basic description

ZT J Series is a line of compact, high-performance turbojet engines for UAVs, target drones, and light aerial platforms. It includes the ZT J23, ZT J40, ZT J60, ZT J80, and ZT J160 – covering the 230 to 1 600 N thrust class. Each engine uses a single-stage radial compressor and a single-stage axial flow turbine. The result is a high thrust-to-weight ratio and fast throttle response. The compact design suits airframes with tight space constraints without sacrificing power or capability.

All models support multiple start modes. Options include manual start, automated air-start, and fully automatic electric start. Depending on configuration, acceleration from idle to maximum RPM takes as little as four seconds. This enables rapid reaction times and mission flexibility.

Our manufacturing is set up for series production across the full range. We also provide end-to-end engineering support for custom turbojet solutions. This allows tailoring across varied applications while maintaining common interfaces and straightforward maintenance.

Technical description

Thrust >1 569 N
Max. RPM 46 000
Max. altitude 8000 m
Max. speed 1000 km/h
Fuel consumption 3 600 g/min
Engine weight 21 450 g
For more details, contact us at email info@lp-praha.cz.