UAV Flies With Variable-Buoyancy Propulsion

A team from academia and industry has begun flight testing an aircraft powered by a variable-buoyancy propulsion system. Although it looks like a winged airship, the Phoenix, development of which is being led by Scotland’s University of the Highlands and Islands, is a solar-powered monoplane with a...
Tony Osborne

Based in London, Tony covers European defense programs. Prior to joining Aviation Week in November 2012, Tony was at Shephard Media Group where he was deputy editor for Rotorhub and Defence Helicopter magazines.

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