DRDO's Green Propulsion System Proves Successful in PSLV C-58 Mission

• 03 Feb 2024

A green propulsion system, developed under the Defence Research & Development Organisation's (DRDO) Technology Development Fund (TDF) scheme, has showcased in-orbit functionality during the PSLV C-58 mission, as announced by the Defence Ministry on February 1, 2024.

Key Points

• Innovative Thruster Development: The project, known as "1N Class Green Monopropellant thruster for altitude control and orbit keeping of micro satellite," was sanctioned to Bengaluru-based startup Bellatrix Aerospace Pvt Ltd under the TDF scheme.
• The telemetry data from the PSLV Orbital Experimental Module (POEM) at ISRO Telemetry, Tracking and Command Network (ISTRAC), Bengaluru, has been successfully validated, exceeding all performance parameters.
• TDF and 'Make in India' Initiative: The Technology Development Fund (TDF) is a flagship program of the Ministry of Defence executed by DRDO under the 'Make in India' initiative.
• It focuses on funding innovation in defence and aerospace, particularly for startups and MSMEs.
• Environmentally Friendly Propulsion: This pioneering technology introduces a non-toxic and environmentally friendly propulsion system designed for low orbit space.
• The system includes indigenously-developed components such as propellant, fill and drain valves, latch valve, solenoid valve, catalyst bed, and drive electronics.
• It is particularly suitable for space missions with high thrust requirements.
• Successful Project Execution: The entire project was conducted by the development agency under the guidance of the project monitoring and mentoring group of DRDO.
• It successfully demonstrated pulsed mode and steady-state firing in a vacuum, passivation of residual propellant in outer space, propellant realization, and the establishment of filling procedures under the TDF.