India's HAP prototype, built for border patrol, complete's key test
India's indigenous High-Altitude Platform (HAP) prototype, developed by the National Aerospace Laboratories (NAL), has successfully completed a series of critical pre-monsoon flight tests, marking a significant advancement in the nation's aerospace capabilities. Conducted at the Aeronautical Test Range in Challakere, Karnataka, between May 8 and 13, 2025, the solar-powered stratospheric vehicle demonstrated its ability to operate autonomously, even under challenging conditions such as cloud cover, thanks to its newly integrated certified autopilot system. This subscale prototype, boasting a 12-meter wingspan and weighing under 22 kilograms, achieved altitudes of 24,000 feet and sustained flight durations exceeding 8.5 hours. The successful tests underscore India's progress in developing advanced surveillance technologies aimed at enhancing border security, with the full-scale HAP expected to further bolster the country's strategic reconnaissance capabilities.