IAF Moves to Boost Tejas Fleet, Paves Way for Kaveri 2.0 Engine Development Plans

India's Tejas Trainer Program: A Catalyst for Local Engine Development

The Indian Air Force (IAF) is poised to place a significant order for a new trainer aircraft, dubbed Tejas SPORT, which has the potential to revolutionize the country's pilot training capabilities. What's more, this procurement could also pave the way for the development of a new high-thrust engine, based on the Kaveri engine module, which has been a long-standing goal of the Gas Turbine Research Establishment (GTRE).

The Tejas SPORT is a combat-capable trainer aircraft, designed to train future IAF pilots. With the IAF confirming its interest in procuring nearly 150 units of this aircraft, the programme has the potential to create a sizeable production run around the Tejas airframe. This, in turn, could lead to significant cost savings and economies of scale.

However, the Tejas SPORT programme is not just about replacing the existing Stage-III aircraft. It also presents an opportunity to revive plans to develop a new engine based on the Kaveri engine module. The GTRE has been working on a new engine concept, often referred to as Kaveri 2.0, which would be built on the current Kaveri derivative engine. This new core would provide increased thrust, making it suitable for use in unmanned strike platforms, as well as replacing the F-404 engines currently used in the Tejas.

The IAF's requirement for a large number of trainers, in addition to its existing fleet of Tejas aircraft, presents a compelling case for developing a new local engine. With over 370 jets requiring new engines once the current set of F-404 engines have completed their technical life, the need for a domestic engine programme becomes increasingly urgent. A 90kN engine, which is being considered for the programme, would not only provide the necessary thrust but also reduce the country's dependence on foreign suppliers.

The development of a new engine based on the Kaveri architecture would also have significant implications for the Tejas programme. With a larger common airframe fleet, future propulsion systems, such as the 90kN engine, could be justified, making the investment worthwhile. Moreover, the use of a local engine would also reduce the country's reliance on foreign suppliers, such as General Electric, for its supply chain requirements and support.

While the IAF has not yet selected the Tejas SPORT, and the Request for Information (RFI) process is still underway, the chances of the local programme being backed over importing low-cost supersonic trainers from abroad are high. If the IAF proceeds with the procurement of 150 units of the Tejas SPORT, it would provide a significant opportunity for the development of a new engine based on the Kaveri architecture. This engine could later be used to replace the older F-404 engines on active Tejas Mk1A jets, further reducing the country's dependence on foreign suppliers.

The Tejas SPORT programme is a significant development in India's aviation sector, with the potential to create a sizeable production run around the Tejas airframe. However, it is the potential for local engine development that makes this programme truly exciting. With the IAF's requirement for a large number of trainers, and the need for a domestic engine programme, the Tejas SPORT programme presents a compelling case for the development of a new engine based on the Kaveri engine module.

Key Takeaways

• The IAF is poised to place a significant order for the Tejas SPORT, a combat-capable trainer aircraft, which has the potential to create a sizeable production run around the Tejas airframe.
• The procurement of 150 units of the Tejas SPORT presents an opportunity to revive plans to develop a new engine based on the Kaveri engine module.
• The GTRE has been working on a new engine concept, often referred to as Kaveri 2.0, which would provide increased thrust and be suitable for use in unmanned strike platforms, as well as replacing the F-404 engines currently used in the Tejas.
• The development of a new engine based on the Kaveri architecture would reduce the country's dependence on foreign suppliers and provide a significant opportunity for future propulsion systems, such as the 90kN engine.