BetaBoston | Boston Engineering gets SBIR grant from US Air Force to build drone propulsion ... BetaBoston Boston Engineering has won a $150,000 contract from the US Air Force to develop motor and sensor systems for drones, the company said Friday. This is the first grant for the 20-year-old Waltham technology company from the Air Force's Small Business ... Boston Engineering Receives U.S. Air Force Contract to Advance Unmanned Aerial ... Boston Engineering to Help Air Force Design UAV Motor Controller Tech |