HTFE-25
HTFE-25 turbofan engine from HAL
Type Afterburning turbofan
National origin India
Manufacturer Hindustan Aeronautics Limited
First run 14 December 2015
Number built 2 (Core engines) 1 Technology demonstrator

The HAL HTFE-25 ("Hindustan Turbo Fan Engine") is a 25 kN turbofan engine under development by Hindustan Aeronautics Limited (HAL).[1] The engine can be used in single engine trainer jets, business jets and UAVs weighing up to 5 tonnes and in twin engine configuration for same weighing up to 9 tonnes. Based on the technical feasibility, the market potential for engine is of 200-250 units.[2]

Two engines have been produced and completed 339 runs as of 2019 out of which 96 runs were conducted in 2018-19. Engine has successfully completed cold starting test at 14 °C with spark igniters and has also achieved 100 per cent max speed with and without IGV modulation.

The company has also initiated the development for integrating afterburner technology on engine. In March 2019, first test with "basic afterburner" configuration was conducted on the engine.[3] Cold weather trials and Hot weather high altitude trials were completed at Leh. Full engine (Technology Demonstrator) has been built and first run completed successfully. Completion of acceleration trials up to 55% of the speed achieved. [4]

Specifications

Data from [5][6]

General characteristics

  • Type: turbofan
  • Length: 1,730 millimetres (68 in)
  • Diameter: 590 millimetres (23 in)
  • Dry weight: 350 kilograms (770 lb)

Components

  • Compressor:

Performance

  • Maximum thrust: 25 kN (2,500 kgf; 5,600 lbf) (dry thrust)
  • Bypass ratio: 0.50
  • Air mass flow: 43 kg/s
  • Turbine inlet temperature: 1450 K
  • Fuel consumption: 0.71 kg/kgf-hr (1.565 lb/lbf-hr)
  • Thrust-to-weight ratio: 7.27

See also

Related development

Comparable engines

Related lists

References

  1. ↑ Boost for 'Make in India': HAL's 25 kN aero engine completes inaugural run; can be used for trainer aircraft
  2. ↑ "Annual Report 2017-18" (PDF). Hindustan Aeronautics Limited. Retrieved October 19, 2019.
  3. ↑ "Annual Report 2018-19" (PDF). Hindustan Aeronautics Limited. Retrieved October 19, 2019.
  4. ↑ "HAl Annual Report 2021-2022" (PDF).
  5. ↑ "Boost for 'Make in India': HAL's 25 kN aero engine completes inaugural run can be used for trainer aircraft". Retrieved 15 July 2018.
  6. ↑ @vkthakur (July 27, 2019). "HAL has successfully tested the 2nd core of the HTFE-25 at 100% power" (Tweet) – via Twitter.
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