Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is being awarded a $19,805,300 modification to the previously awarded fixed-price-incentive-fee (firm target) F-35 Lightning II Joint Strike Fighter Low Rate Initial Production IV contract (N00019-09-C-0010) for the Joint Strike Missile (JSM) Risk Reduction Study for the Norway Ministry of Defence. Efforts include physical fit checks, wind tunnel tests, engineering analysis, and designing and building of an emulator and adapter to determine next steps in integrating the JSM into the F-35 Joint Strike Fighter. Work will be performed in Fort Worth, Texas (70 percent); Arnold Air Force Base, Tullahoma, Tenn. (20 percent); and Kongsberg, Norway (10 percent). Work is expected to be completed in May 2014. Contract funds will not expire at the end of the current fiscal year. The Naval Air Systems Command, Patuxent River, Md., is the contracting activity.