Godrej Aerospace Advances Indigenous Jet Engine Program with Delivery of Dry Kaveri Engine Modules
In a significant stride toward India’s goal of defence self-reliance, Godrej Aerospace has successfully delivered two modules of the Kaveri Derivative Engine, also known as the Dry Kaveri, to the Gas Turbine Research Establishment (GTRE). This delivery marks a pivotal moment in India’s indigenous jet engine development journey and underlines the growing role of private industry in the nation’s aerospace sector.
The Dry Kaveri engine is a modified, non-afterburning version of the original Kaveri engine that was originally developed for the Light Combat Aircraft (LCA) Tejas. While the original Kaveri program faced multiple delays and challenges, the Dry Kaveri variant has found renewed purpose in powering future unmanned aerial vehicles and potential light combat aircraft. With a thrust class of around 48 kN, the Dry Kaveri is tailored for platforms that do not require afterburning capability, making it ideal for UAVs and stealth applications.
Godrej Aerospace’s achievement stems from a September 2022 contract awarded by DRDO, which tasked the company with manufacturing eight engine modules. The first two modules have now been completed and handed over to GTRE within the stipulated two-year timeframe. This success reflects Godrej's growing expertise in aero-engine manufacturing, a field traditionally dominated by government entities.
As per the contract, six more modules are under development and expected to be delivered by late 2025. These modules will complete the set required to assemble a full Dry Kaveri engine for further performance testing and evaluation. Once the full engine is ready, it will undergo a rigorous series of ground and flight tests, which are crucial to validate its design, durability, and performance under real-world conditions.
The Dry Kaveri engine has already undergone high-altitude testing in Russia, where its initial results were marked as satisfactory. However, continued testing and iterations will be necessary before it can enter operational deployment. Importantly, GTRE is also working on an afterburner module for the Dry Kaveri, which is expected to enhance its thrust to 73-75 kN. If successful, this could open the door for its use in manned platforms such as HAL’s HLFT-42, a new-generation trainer and light combat aircraft being designed for both domestic and export markets.
The broader impact of this project goes beyond just the engine itself. According to executives from Godrej Aerospace, the project has enabled the company to develop crucial metallurgical and manufacturing expertise, particularly in handling challenging materials like titanium. Titanium is essential in aerospace applications due to its strength, lightweight, and corrosion resistance but requires precision engineering due to its difficult nature. Developing the ability to work with such materials is a strategic gain for India’s entire aerospace manufacturing ecosystem.
This initiative also aligns with India’s long-term vision to develop its own 5th generation fighter jet engines, particularly for the Advanced Medium Combat Aircraft (AMCA) project. While that goal is still on the horizon, the Dry Kaveri project serves as a vital stepping stone, helping Indian engineers and private firms gain the knowledge and experience needed to build more complex engines in the future.
In conclusion, Godrej Aerospace’s delivery of the first two Dry Kaveri engine modules is not just a contract milestone—it’s a symbol of India’s evolving aerospace capabilities. As more modules are completed and tested, the project will bring India closer to a future where indigenous engines power its next generation of combat aircraft and unmanned systems. This also represents a shift in India’s defence ecosystem, where public-private partnerships are becoming the cornerstone of innovation and self-reliance.
