https://www.bbc.com/news/uk-scotland-48013519

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Media playback is unsupported on your device Media caption Future versions of Phoenix could be fitted with cameras and deployed in surveillance work. Researchers from the University of the Highlands and Islands (UHI) have helped create a revolutionary new type of aircraft. Phoenix is an unmanned aerial vehicle (UAV) designed to stay in the air indefinitely using a new type of propulsion. Despite being 15m (50ft) long with a mass of 120kg (19 stone) she rises gracefully onto the air. She looks a little like an airship, except airships don't have wings. "It's a proper aeroplane," says the UHI's Professor Andrew Rae. As the project's chief engineer, he has overseen the integration of Phoenix's systems. Full story

23 April

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