Hello Petra,

Information about that unmanned aircraft from a Tucson newspaper - the link includes a photo:

> A Silver Fox, used by the Navy in Afghanistan and Iraq, can stay aloft for five hours. Operators control the aircraft using a laptop computer and cameras.
> ...
> The roots of the Silver Fox, which costs $20,000 to $60,000, are in marine mammal observation, said Woody Berzins, spokesman for ACR.
>
> "The Navy has used the aircraft to keep its ships from running into whales," Berzins said.
>
> The 22-pound Silver Fox has an 8-foot wingspan and a 5-foot fuselage. It is designed for unarmed surveillance. > ...

Mary C.