DRDO HAPS Reaches 21 km, Holds 20 km for More Than 30 Minutes
India has taken another step toward an indigenous long-endurance stratospheric surveillance capability. The Defence Research and Development Organisation (DRDO) has successfully flight-tested an indigenously developed High-Altitude Platform System (HAPS), taking the experimental platform to 21 km above mean sea level and keeping it at 20 km for more than 30…