System Dynamics International (SDI) is proud to announce the promotion of Steven Coombs to Vice President, Operations. Mr. Coombs joined the company in 2019 as a Contract Manager and brings over 18 years of manned and unmanned Aviation and Operational experience both CONUS and OCONUS for all US DOD customers to this role. He is also an active Developmental Test Pilot for the United States Air Force MQ-9 Reaper and will actively split time between SDI’s Southern California and Huntsville offices.