Lockheed Martin Corp., Lockheed Martin Aerospace Co., Fort Worth, Texas, is awarded a $ 130,359,625 modification to a previously awarded cost-plus-incentive fee contract (N00019-18-C-1004) in support of the F35 Block 4 Pre-modernization Phase II effort.  This modification provides for pre-modernization requirements decomposition and design work for Block 4.1 Partner participant weapon capabilities for maturation to an air system requirements review level of maturity .  Work will be performed in Fort Worth, Texas, and is expected to be completed in March 2020.  Fiscal 2018 research, development, test and evaluation (Air Force, Navy); and non-U.S. Department of Defense (non-U.S. DoD) participant funding in the amount of $90,505,737 will be obligated at time of award, $13,262,261 of which will expire at the end of the current fiscal year.  This modification combines purchases for the Air Force ($17,557,293; 13.5 percent); Navy ($14,223,730; 10.9 percent); Marine Corps ($14,223,730; 10.9 percent); and the non-U.S. DOD participants ($84,354,872; 64.7 percent).  The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.