DRDO Successfully Flight-Tests Indigenous High Altitude Platform System

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Key takeaways

The DRDO successfully tested an indigenously developed High-Altitude Platform System (HAPS) in the stratosphere.
The experimental platform reached an altitude of 21 km and maintained an altitude of 20 km for over 30 minutes.
The lighter-than-air system was developed by the Aerial Delivery Research and Development Establishment (ADRDE) in Agra.
HAPS operates at altitudes of 20 to 50 km to bridge the operational gap between conventional aircraft and satellites.

The Defence Research and Development Organisation (DRDO) successfully flight-tested an indigenously developed High-Altitude Platform System (HAPS).
This flight test marks major progress towards building a long-endurance stratospheric surveillance platform for India.

A High-Altitude Platform Station is carried by an aerial vehicle like an unmanned aircraft, airship, or balloon operating in the stratosphere.
The International Telecommunication Union (ITU) defines HAPS as stations located on objects at altitudes of 20 to 50 km relative to Earth.

The experimental platform reached an altitude of 21 km above mean sea level during the test flight.
The platform successfully stayed at an altitude of 20 km for more than 30 minutes.
The Aerial Delivery Research and Development Establishment (ADRDE) in Agra developed this lighter-than-air platform for stratospheric flights.
The system carried an Inertial Measurement Unit (IMU), GPS receiver, onboard cameras, and an altitude-control mechanism.
Live video footage and flight parameters were continuously sent back to the Ground Control Station during the test.
Operators commanded the platform to descend and successfully recovered it for detailed flight data analysis.

The test flight involved the Indian Air Force (IAF), CEMILAC, DGCA, Airports Authority of India (AAI), and civil authorities.
This system bridges the operational gap between lower-altitude aircraft and higher-altitude space satellites.
HAPS can provide continuous surveillance, intelligence gathering, Earth observation, communications, and disaster response.
The ability to recover the platform for maintenance and upgrades supports India's Aatmanirbhar Bharat mission in aerospace technology.