Agnikul Cosmos Successfully Tests 3D Printed Agnilet Engines

Agnikul Cosmos, a Chennai-based New Space startup, has successfully test-fired a pair of its innovative Agnilet engines. This achievement marks a significant step towards the company’s goal of executing its first orbital flight in 2026. The test, conducted recently, showcased the engines’ capability to reach thermal steady state, exhibiting consistent performance over a duration of 49 seconds.

The Agnilet engines are notable for being the world’s first single-piece 3D printed semi-cryogenic engines. They are powered by electric motors developed in-house by Agnikul and are pump-fed. The test utilized a total of four pumps, each driven by independent electric motors, with most components produced domestically through advanced 3D printing techniques. The innovative approach to speed control is managed by software also developed by Agnikul.

Collaboration with ISRO and Future Plans

Agnikul Cosmos is receiving valuable support from the Indian Space Research Organisation (ISRO), which is providing mentoring and access to its test facilities. The startup had previously conducted a successful test of similar engines in October 2023. The Agnilet engines utilize a refined blend of kerosene and liquid oxygen to propel rockets, employing turbopumps to inject fuel at high pressure. This method echoes the technology used in Rocket Lab’s Rutherford Engine, which powers its Electron rocket.

In addition to its engine development, Agnikul Cosmos has established the largest dedicated 3D printing facility for rocket engines in Chennai. This facility aims to streamline production and enhance the capabilities of the company’s engines.

Plans for Complete Reusability and Launch Facilities

The company is pivoting towards complete reusability for its launch systems. The design includes a first-stage booster that can return to either a launch pad or an ocean platform, while the upper stage is engineered to convert into a satellite capable of hosting payloads. This innovative approach aims to ensure that no components are wasted after payload deployment.

Agnikul Cosmos also plans to set up a second launch pad at ISRO’s upcoming spaceport in Kulasekharapatnam, which is specifically designed for small launchers. This development follows Agnikul’s distinction as the first private company to establish its own launch pad at ISRO’s primary spaceport in Sriharikota.

Agnikul Cosmos has previously demonstrated its technological capabilities with a successful suborbital flight test on 30 May 2024. The company is poised to make significant strides in the aerospace sector, with a vision that could reshape the landscape of space launches in India and beyond.