Agnikul Cosmos and the Agnibaan SOrTeD Mission
Agnikul Cosmos is an Indian space technology start-up incubated at the Indian Institute of Technology, Madras (IIT-Madras). The company recently achieved a major milestone in India’s private space sector with the development and successful launch of its rocket, the Agnibaan SOrTeD (SubOrbital Technological Demonstrator).
The First Flight and Its Objectives
After initiating the integration process in August 2023, Agnikul Cosmos successfully launched the Agnibaan SOrTeD rocket on May 30, 2024.
Unlike standard operational rockets, Agnibaan SOrTeD is a single-stage test vehicle. It was designed to lift off vertically, follow a predetermined flight path, and execute specific maneuvers during its flight. The primary goal of this mission was to conduct a test flight to showcase the company’s internally developed technologies and gather vital flight data. This data is crucial for validating systems that will be used in future orbital flights capable of carrying heavier payloads.
The Agnilet Engine and 3D Printing Technology
The most remarkable feature of the Agnibaan SOrTeD rocket is its engine, named Agnilet.
- Semi-Cryogenic Fuel: The engine is semi-cryogenic, meaning it uses a combination of liquid oxygen and kerosene (aviation turbine fuel) as its propellant. It generates a thrust of 6 kN.
- Additive Manufacturing (3D Printing): The Agnilet engine holds the record for being the world’s first single-piece, fully 3D-printed rocket engine.
- How 3D Printing Works: Also known as additive manufacturing, 3D printing is a process that builds real three-dimensional objects from a computer-aided design (CAD) file by adding materials—like specialized metals or plastics—layer by layer.
- Difference from Traditional Manufacturing: 3D printing is the exact opposite of traditional “subtractive manufacturing.” For example, subtractive manufacturing is like a sculptor carving a statue by cutting away pieces from a solid block of stone. In contrast, additive manufacturing (3D printing) is like a builder stacking bricks one by one to build a structure. Using 3D printing for rocket engines significantly reduces manufacturing time and eliminates complex assembly errors.
Historic "Firsts" for the Indian Space Ecosystem
The successful flight of Agnibaan SOrTeD marked several historic achievements for India’s private space industry:
- First Private Launchpad: It was the first launch from a privately built launchpad in India, named Dhanush (also known as Agnikul Launchpad-01), located within the Satish Dhawan Space Centre in Sriharikota.
- First Semi-Cryogenic Launch: It was India’s first successful flight of a home-grown rocket powered by a semi-cryogenic engine.
- First 3D-Printed Engine: It demonstrated the successful use of the world’s first single-piece 3D-printed rocket engine in flight.
Institutional Support
The development and launch of the Agnibaan SOrTeD mission were heavily supported by the Indian Space Research Organisation (ISRO) and authorized by IN-SPACe (the Indian National Space Promotion and Authorisation Centre). This collaboration highlights the growing synergy between government space agencies and private start-ups in advancing India’s space exploration capabilities.
