First spotted in Afghanistan and now flying at Creech Air Force Base, the Lockheed Martin RQ-170 Sentinel is the first U.S. Air Force stealth drone—we think. In 2009, after two weeks of being ...

The Lockheed Corporation's Skunk Works design ... F-35 Lightning II, and the RQ-170 Sentinel. On May 13, through an announcement on Aviation Week, Skunk Works revealed its latest project: a ...