New Delhi: India is moving closer to building a powerful indigenous fighter jet engine for its fifth-generation stealth aircraft. The AMCA engine project, jointly developed by India’s Defence Research and Development Organisation (DRDO) and French aerospace company Safran, will likely integrate indigenous single-crystal metallurgy technology into a planned 120 kN thrust class engine.
This development is considered a major step for India’s defence self-reliance. The advanced engine is expected to power the Advanced Medium Combat Aircraft (AMCA) in the future and reduce India’s dependence on foreign propulsion technology.
What Is the AMCA Programme?
The Advanced Medium Combat Aircraft (AMCA) is India’s upcoming fifth-generation stealth fighter jet being developed by the Aeronautical Development Agency (ADA) with DRDO support.
Key features of AMCA include:
- Stealth design to avoid enemy radar detection
- Advanced avionics and sensors
- Supercruise capability (supersonic flight without afterburner)
- Long-range strike capability
According to official programme timelines, the AMCA prototype rollout is expected in the late 2020s, with induction into the Indian Air Force planned around 2034–2035.
Initially, the AMCA Mk1 variant will likely use imported engines, but the AMCA Mk2 version is planned to be powered by the new 120 kN indigenous engine.
Background of Indigenous Single-Crystal Technology
India has chosen Safran Aircraft Engines of France as its partner to jointly develop the next-generation engine.
Important highlights of the collaboration include:
- Joint design and development of a 110–120 kN thrust class turbofan engine
- Full technology transfer from Safran to India
- Engine development expected to take around 10 years
- Manufacturing to take place largely in India under Indian intellectual property rights
This collaboration marks a shift from earlier arrangements where India mainly assembled or licensed foreign engines instead of co-developing them.
Importance of Indigenous Single-Crystal Technology
One of the most critical parts of a jet engine is the turbine blade, which operates under extremely high temperatures and pressure.
To handle these conditions, modern fighter engines use single-crystal superalloy blades.
Advantages of Single-Crystal Technology
- Can withstand very high temperatures
- More durable and resistant to fatigue
- Improves engine efficiency and lifespan
- Allows engines to generate higher thrust
India’s Defence Metallurgical Research Laboratory (DMRL) has already developed expertise in single-crystal metallurgy. Integrating this indigenous capability into the AMCA engine could significantly boost India’s ability to design advanced jet engines domestically.
However, adapting this technology for high-thrust fighter engines remains technically challenging.
Engine Power and Future Growth
The proposed engine is expected to deliver:
- Around 75 kN dry thrust
- 110–120 kN thrust with afterburner
Future upgrades may increase thrust to 140 kN, allowing the engine to power more advanced variants of AMCA or even future aircraft platforms.
This scalable design approach will help India develop a family of high-performance jet engines in the future.
Strategic Importance for India
The AMCA engine project is not just about aircraft technology—it has broader strategic implications.
Key benefits
1. Defence self-reliance: India will reduce dependence on foreign engine suppliers.
2. Technology transfer: The project includes full access to sensitive propulsion technologies.
3. Domestic manufacturing: Most development and production will take place in India.
4. Long-term aerospace capability: The knowledge gained can be used for future fighter aircraft and advanced propulsion systems.
Experts say this collaboration could become one of the most important aerospace technology transfers India has ever received.
