Northrop Grumman Systems Corp., Integrated Systems Sector, San Diego, Calif., is being awarded a $25,709,758 modification to a previously awarded firm-fixed-price contract (N00019-07-C-0041) to purchase three Fire Scout vertical takeoff and landing tactical unmanned aerial vehicles Lot 5 low rate initial production and one ground control station.  Work will be performed in Moss Point, Miss. (55 percent), and San Diego, Calif. (45 percent), and is expected to be completed in December 2013.  Contract funds will not expire at the end of the fiscal year.  The Naval Air Systems Command is the contracting activity.