The Delco Carousel was a popular INS-based navigation automation system for aircraft developed by Delco Electronics. An Inertial Navigation System (INS is a Navigation aid that uses a Computer and motion sensors to continuously track the position orientation and Velocity The principles of air navigation are the same for all Aircraft, big or Small. Delco Electronics Corporation was the automotive Electronics design and manufacturing subsidiary of General Motors based in Kokomo Indiana. Before the advent of sophisticated flight management systems, the Carousel allowed pilots to automate navigation of an aircraft along a series of waypoints that they entered via a control console in the cockpit. A flight management system or FMS is a Computerized Avionics Component found on most commercial and business Aircraft The Carousel used an INS as its position reference for navigation. Many aircraft were equipped with dual or triple Carousels for redundancy.