A place in the sun

摘要

Within the next few weeks, a team of UK engineers hopes to launch an unmanned aircraft that could fly continuously for several months at altitudes of up to 65,000ft.rnPowered by nothing more than the sun, the so-called Zephyr unmanned aerial vehicle (UAV) has been developed by engineers at Qinetiq who believe that such vehicles have huge potential across a range of scientific, military and civil applications.