AIRCRAFT PROTOTYPE Defense Secretary Leon E. Panetta and U.S. Rep. Steny H. Hoyer of Maryland look at the Aircraft Prototype Facility on Naval Air Station Patuxent River, Md., Jan. 20, 2012. Panetta and Hoyer toured several facilities related to the F-35 Joint Strike Fighter, which is in its test phases at the base. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 771094-D-SQY41-488.jpg Photo Gallery