Solar-power plane could fly forever
Scientists have developed a solar-powered aircraft that uses an innovative propulsion system to stay in the skies indefinitely.
Scientists have developed a solar-powered aircraft that uses an innovative propulsion system to stay in the skies indefinitely.
The pilotless Phoenix aircraft stays aloft using helium and pumps compressed air out of a rear-facing vent to generate thrust. A prototype completed test flights in Portsmouth, southern England, and could be commercially viable within years.
The aircraft is designed to eventually fly at 70,000ft and could be used to release micro-satellites or take part in surveillance. Its backers said it would be far cheaper to build and operate than conventional drones.
Andrew Rae, professor of engineering at the University of the Highlands and Islands, who led the design, said it was intended to be totally self-sufficient.
The prototype, 14m long with a wingspan of 10.5m, was flown over 180km. The Phoenix team is now exploring collaborations with manufacturers.
The Times
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