NextFin News - The Indian Institute of Technology Madras (IIT Madras) announced a major breakthrough in defense technology on January 13, 2026, with the successful development and testing of ramjet-propelled artillery shells. This innovation extends the range of existing artillery guns used by the Indian Army by approximately 50%, without sacrificing the shells' destructive power. The project, led by Professor P.A. Ramakrishna of the Aerospace Engineering Department, was conducted in collaboration with retired Lieutenant Generals P.R. Shankar and Hari Mohan Iyer, along with other senior academics and defense experts. Extensive trials were carried out at Indian Army test sites in Deolali and Pokhran.
The ramjet technology integrates a compact ramjet engine into standard 155-mm artillery shells, such as those used in the Dhanush gun system, the K9 Vajra self-propelled howitzer, and the Advanced Towed Artillery Gun System (ATAGS). Unlike conventional engines with moving parts, the ramjet uses the shell's high velocity to compress incoming air, mix it with fuel, and generate thrust continuously after the shell exits the gun barrel. This propulsion mechanism replaces the traditional base-bleed technology, enabling sustained acceleration and significantly longer flight distances.
Specifically, the range of the Dhanush artillery gun increased from 30 km to 55 km, the K9 Vajra from 36 km to 62 km, and the ATAGS from 40 km to 70 km. Importantly, these enhancements maintain the shells' lethality and accuracy, ensuring battlefield effectiveness is not compromised despite the extended range.
This development addresses a critical limitation in modern artillery: extending firing range without the need for new gun platforms or expensive missile systems. Ramjet-assisted shells provide a cost-efficient solution that enhances the Indian Army's tactical flexibility and strike depth. The technology's success is attributed to the interdisciplinary collaboration between IIT Madras researchers and retired military leadership, combining aerospace engineering expertise with operational insights.
From a strategic perspective, this breakthrough significantly boosts India's artillery capabilities amid evolving regional security dynamics. The ability to engage targets at greater distances enhances deterrence and operational reach, potentially reshaping battlefield doctrines. Moreover, the technology's modular nature allows retrofitting existing artillery inventories, accelerating deployment and reducing procurement costs.
Economically, the ramjet artillery shells offer a high return on investment by extending the life and utility of current artillery platforms. This innovation reduces reliance on costly missile systems, which often require complex logistics and maintenance. The enhanced range also improves force projection without escalating the arms race through new weapon platforms.
Looking ahead, the IIT Madras team is exploring the application of ramjet propulsion to rocket systems, which could further amplify range and precision capabilities. This forward-looking approach aligns with global trends emphasizing cost-effective, high-impact defense technologies that leverage advanced propulsion and materials science.
In conclusion, IIT Madras' ramjet artillery technology represents a paradigm shift in artillery warfare, combining engineering innovation with strategic foresight. By extending artillery range by nearly 50%, it empowers the Indian Army with enhanced operational flexibility and deterrence, while maintaining cost efficiency and lethality. This breakthrough underscores the critical role of academic-defense collaboration in advancing national security capabilities under the current U.S. President's administration, which prioritizes technological self-reliance and modernization of armed forces.
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