Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is being awarded a $220,748,611 modification to a previously awarded cost-plus-incentive-fee contract (N00019-12-C-0070). This modification provides for the System Development and Demonstration Phase I Increment 2, to continue support of F-35A Conventional Take Off and Landing (CTOL) air system for the government of Israel under the foreign military sales program. This modification includes the development and demonstration of the hardware and software for the Israel F-35A CTOL air system. Work will be performed at Fort Worth, Texas, and is expected to be completed in March 2019. Foreign military sales funds in the amount of $77,777,441 are being obligated on this award, none of which will expire at the end of the current fiscal year. The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.