World · India Bureau
DRDO achieves milestone with indigenous high-altitude platform test
India's Defence Research and Development Organisation has successfully tested a high-altitude platform system at 21 kilometres altitude, maintaining flight for over 30 minutes. The achievement represents a significant step forward in developing indigenous aerospace capabilities.
LSN India ·

The Defence Research and Development Organisation (DRDO) has successfully conducted a test flight of an indigenous high-altitude platform system (HAPS), reaching an altitude of 21 kilometres and remaining airborne for more than 30 minutes.
The platform was equipped with an inertial measurement unit (IMU), GPS receiver, onboard cameras and an altitude-control system. These components enabled the system to navigate, monitor its performance and maintain stable flight control at extreme altitudes where conventional aircraft operations become challenging.
HAPTS technology represents a distinct category of aerospace systems, designed to operate in the stratosphere at altitudes between 17 and 22 kilometres. At these heights, platforms can provide persistent communication relay, earth observation and surveillance capabilities while avoiding the congestion of conventional air traffic corridors and remaining below satellite altitudes.
The successful demonstration underscores India's growing self-reliance in critical aerospace and defence technologies. High-altitude platforms have applications in telecommunications, disaster management, scientific research and strategic surveillance, making the development of indigenous capabilities strategically significant for the nation.
The DRDO test validates the integration of multiple systems required for sustained high-altitude operations, including navigation, altitude management and real-time monitoring capabilities essential for operational deployment.