HAL HTFE-25

HTFE-25
HTFE-25 turbofan engine from HAL
TypeAfterburning turbofan
National originIndia
ManufacturerHindustan Aeronautics Limited
First run14 December 2015
StatusUnder development
Number built2 (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). The engine can be used in trainer jets, business jets and UAVs in single-engine configuration for weight categories up to 5 tonnes and in twin engine configuration for weight categories up to 9 tonnes. Based on the technical feasibility, the market potential for engine is of 200–250 units.

Development

The project commenced in 2013–14 with a projected timeline of completion within six years.

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. 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.

As of July 2026, the second core engine has completed acceleration trials with 99.5% of the speed. While further trials are underway, HAL plans to certify the engine within the next 4–5 years.

Specifications

Data from

General characteristics

Components

Performance

See also

Related development

Comparable engines

Related lists

References

  1. ↑ "HAL HAS STARTED THE PREPARATION FOR THE TESTING OF HTFE TURBOFANS". INDIAN DEFENCE NEWS. 14 October 2021. Retrieved 8 November 2021.
  2. ↑ Boost for 'Make in India': HAL's 25 kN aero engine completes inaugural run; can be used for trainer aircraft
  3. ↑ "Annual Report 2017-18" (PDF). Hindustan Aeronautics Limited. Retrieved October 19, 2019.
  4. 1 2 "HAL Annual Report 2025-26" (PDF). BSE India. 4 August 2026. pp. 39, 250. Retrieved 4 August 2026.
  5. ↑ "Annual Report 2018-19" (PDF). Hindustan Aeronautics Limited. Retrieved October 19, 2019.
  6. ↑ "HAl Annual Report 2021-2022" (PDF).
  7. ↑ "HAL HTFE-25 Engine: Indigenous Turbofan Reaches 99.5% Core Speed in Major Test". Indian Masterminds. 2026-08-06. Retrieved 2026-08-07.
  8. ↑ "Boost for 'Make in India': HAL's 25 kN aero engine completes inaugural run can be used for trainer aircraft". Retrieved 15 July 2018.
  9. ↑ @vkthakur (27 July 2019). "HAL has successfully tested the 2nd core of the HTFE-25 at 100% power" (Tweet) – via Twitter.