India’s indigenous jet engine program is entering a decisive phase as the Gas Turbine Research Establishment (GTRE) advances development of the Kaveri 2.0 engine. Positioned as a successor to the GE F404-IN20 powering the Tejas Mk1A, the new engine represents a major step toward achieving self-reliance in fighter propulsion.
Unlike incremental upgrades, Kaveri 2.0 is being designed as a comprehensive performance leap, with higher thrust output tailored to future Indian Air Force requirements. While the current F404 delivers around 84–85 kN with afterburner, Kaveri 2.0 is targeting up to 90–100 kN, enabled through improved core architecture, advanced materials, and potential collaboration with Safran.
The program is also driven by concerns over foreign supply chains, as delays in engine deliveries have raised questions about long-term sustainability. Kaveri 2.0 is therefore being developed as a strategic alternative to ensure sovereign control over propulsion technology.
A key design focus is operational reliability under extreme conditions through flat-rating, ensuring consistent thrust in high-temperature and humid environments. Efforts are also underway to reduce engine weight using advanced materials such as single-crystal turbine blades, addressing past limitations.
Although challenges remain—particularly in achieving stable afterburner performance and seamless integration with the Tejas platform—recent testing has shown progress in resolving earlier combustion issues. The Kaveri 2.0 is expected to follow a phased development path, initially supporting unmanned systems before potentially powering Tejas upgrades in the 2030s and future indigenous fighter platforms.
