This 23-page report, published by Dobyns-Bennett High School, describes the design and construction of an underwater remotely operated vehicle (ROV). This report was created by the Kingsport Technologies, a student group that participated in the 2021 MATE ROV competitions Ranger class. MATE ROV is a global underwater robotics competition for STEM students. The competition includes Explorer, Ranger, Navigator, and Scout classes.In the report, an abstract defines a ROV and contextualizes the group. Next, a project management section details the workflow. Following this, the report considers the general engineering design, the control/electrical system, tether, propulsion, buoyancy and ballast, payload and t...