Ordnance Survey Develops High-Altitude UAV UK mapping agency Ordnance Survey (OS) has revealed details of a joint venture to develop a high-altitude pseudo-satellite (HAPS) for the cartography mission. OS—owned by the government’s Department for Business, Energy & Industrial Strategy—has teamed up with UK company Astigan to develop the A3, a 38-m (125-ft.) wingspan, 149-kg (330-lb.) twin-boom solar-powered unmanned aircraft designed to stay aloft at 67,000 ft. for 90 ...


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