IIT Madras

Indian Army to be World’s First to Use Ramjet-Powered 155 mm Artillery Shells

Indian Army to be World’s First to Use Ramjet-Powered 155 mm Artillery Shells

The Indian Army is set to become the world’s first military force to utilize ramjet technology in its 155 mm artillery shells. This groundbreaking initiative is part of India’s ‘Atmanirbharta’ or self-reliance program and is being developed in collaboration with the Indian Institute of Technology (IIT) Madras. The new ramjet-powered shells are expected to enhance the range of existing artillery by 30-50% without compromising their lethality.

Significance of the Development

The development of ramjet-powered artillery shells is a significant advancement in the Indian Army’s artillery capabilities. The focus on increasing the range and precision of artillery munitions aligns with the Army’s ongoing efforts to modernize its weaponry. Currently, the Indian Army employs various artillery calibers, including 130 mm, 122 mm, and 155 mm, which are classified into light, medium, and heavy categories based on their size and intended use.

Understanding Ramjet Technology

Ramjet technology is an innovative method of propulsion that utilizes the engine’s design to compress incoming air without the need for a compressor or turbine. According to Professor P.A. Ramakrishna from the Department of Aerospace Engineering at IIT Madras, a ramjet engine requires an initial speed of approximately Mach 2 to function effectively. This speed can be achieved through a gun or rocket launch.

How Ramjet Engines Work

  • The ramjet engine operates by compressing incoming air as it enters the engine.
  • Fuel is injected into the compressed air and ignited, producing high-temperature gas.
  • This gas expands through a nozzle, generating thrust that propels the shell forward.

Development and Testing

The ramjet-powered 155 mm artillery shell is currently undergoing developmental trials at IIT Madras. Initial tests have been successfully conducted at the Pokharan field firing ranges in Rajasthan. These trials are crucial in assessing the performance and reliability of the new artillery shells.

Potential Applications

Once the ramjet technology is fully developed, it can be retrofitted onto existing 155 mm artillery shells. This flexibility allows the Indian Army to enhance its current artillery systems without the need for entirely new equipment. Professor Ramakrishna emphasized that the technology could be adapted for various gun systems in the Army’s arsenal, including the M777 ultra-light howitzer.

Impact on Artillery Operations

The introduction of ramjet-powered artillery shells is expected to revolutionize artillery operations within the Indian Army. The increased range will allow for more effective bombardment capabilities, enabling forces to engage targets from a safer distance. This advancement is particularly important in modern warfare, where precision and range can significantly influence the outcome of engagements.

Broader Implications for Defense Technology

The development of ramjet technology for artillery shells reflects a broader trend in defense technology aimed at achieving self-reliance. As nations strive to enhance their military capabilities, innovations such as these are crucial for maintaining a competitive edge. The Indian Army’s collaboration with IIT Madras is a testament to the importance of integrating academic research with military needs.

Conclusion

The Indian Army’s initiative to develop ramjet-powered 155 mm artillery shells marks a significant milestone in the pursuit of self-reliance in defense technology. By harnessing advanced propulsion systems, the Army aims to enhance its artillery capabilities, ensuring that it remains effective in contemporary combat scenarios. As the trials progress and the technology matures, the potential for increased range and precision in artillery operations could redefine the strategic landscape for the Indian military.

Note: The information presented in this article is based on developments as of December 31, 2025, and may be subject to change as further research and trials are conducted.