The term 'Cockpit Device' refers to two devices commonly found in the cockpit of an aircraft: Autopilot (9 letters) and RADAR (5 letters). Autopilot is a system that helps pilots maintain control of the aircraft by automatically controlling its speed, altitude, and direction. RADAR is a device used to detect the presence of objects such as other aircraft, ships, and terrain. Both of these devices are essential for safe and efficient air travel.