Solar drone stays aloft for record 7 days: company

Los Angeles (AFP) July 16, 2010 – An ultra-light unmanned aircraft powered by solar energy and designed for military surveillance and other uses has stayed in the air a record seven days, its manufacturer said Friday. The British-based firm QinetiQ said its 22.5 meter (74-foot) long Zephyr, weighing just 50 kilos (110 pounds), continued to fly over a US military testing ground in Arizona, and …