Defense Business and Industry

GTRE Develops Electric Jet Engines Using BLDC Technology

India’s Gas Turbine Research Establishment (GTRE), a DRDO lab, is advancing the use of Brushless DC (BLDC) actuation systems to replace traditional hydraulic actuation in jet engines for platforms such as the Advanced Medium Combat Aircraft (AMCA) and Robotic Stealth Precision Attack (RSPA) UCAV. Announced on September 13, 2025, this initiative targets the heavy, complex, and maintenance-intensive hydraulic systems controlling thrust vectoring, nozzles, and flaps. BLDC motors offer benefits including reduced weight, higher efficiency, greater reliability, simplified maintenance, more precise control, and elimination of hydraulic fluid hazards. This effort corresponds with the global aerospace shift toward “More Electric Aircraft” concepts. Additionally, DRDO and French firm Safran are collaborating on an indigenous 120-140 kN jet engine with full technology transfer, aiming for AMCA and future stealth platforms. GTRE is also developing a dry variant of the Kaveri engine (~49-52 kN thrust) for UAVs and stealth aircraft, supported by new testing facilities. These advancements strengthen India’s push for self-reliance in defense aerospace propulsion, enhancing performance, sustainability, and operational turnaround for next-generation combat aircraft.

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