Chennai AgniKul Cosmos, a space technology company developing launch vehicles and propulsion systems, has test fired three semi-cryogenic rocket engines simultaneously in a clustered configuration for 22.5 seconds. The engines, designed and manufactured in-house, were produced as single pieces of hardware using three-dimensional printing at the company’s AgniKul Cosmos Rocket Factory – 1.
Srinath Ravichandran, Co-Founder and Chief Executive Officer at AgniKul, said the three engines were powered by electric motor-driven pumps and were tested together as a cluster. He said the test involved calibrating six pumps and six motors and tuning six speed control algorithms to operate in synchronisation to achieve uniform startup, steady-state and shutdown performance across the system.
Ravichandran stated that, to the company’s knowledge, this was the first time in India that such a clustered test had been conducted using semi-cryogenic engines. He added that all propulsion systems developed by the company use electric motor-driven pump architecture and that the company’s activities are supported by the Indian Space Research Organisation (ISRO) and the Indian National Space Promotion and Authorisation Centre (IN-SPACe).
This article was originally published on MACHINIST.IN and is republished here with permission. Read the complete original story at AgniKul Cosmos Tests Cluster of Three 3D-Printed Semi-Cryogenic Rocket Engines for 22.5 Seconds
Tuesday, February 24, 2026