The recent trial conducted by a team of British engineers took place on June 25th, above the skies of Spaceport America in New Mexico, representing a new phase in the PHASA-35 project that commenced in 2018 and made its first flight in 2020. The new trial was sponsored by the US military’s Missile Defense Agency and Space Command, as reported by New Atlas on July 19th.
PHASA-35 Aircraft in the Stratosphere. Photo: BAE Systems
With a wingspan of 35 meters and a payload capacity of 15 kg, the solar-electric aircraft comprises high-grade composite materials, an energy management system, photovoltaic cells, solar panels, and rechargeable batteries. The lightweight and versatile battery system allows PHASA-35 to climb to high altitudes during the day and then regain altitude after sunrise.
The goal of the PHASA-35 project is to develop an unmanned aircraft capable of continuous airborne operation for one year, circling above a wide area, unaffected by weather conditions and air traffic. Key applications of the vehicle include military surveillance and search and rescue missions. In addition to its sensor capabilities, the aircraft can serve as a communication node, providing 4G or 5G coverage and various data transmission forms during natural disasters, supporting border surveillance, and potentially replacing traditional satellite systems in commercial applications.
“PHASA-35 unlocks new possibilities in the stratosphere,” shared Cliff Robson, Managing Director of BAE Systems. “The research team has overcome many challenges associated with this new technology.”