automatic steering device; autopilot
Technical term for a device that automatically steers a vessel or vehicle; often used in maritime and aviation contexts.
This ship is equipped with the latest automatic steering device.
Because the autopilot malfunctioned, we had to steer manually.
Common loanword for autopilot, especially in aviation; 自動操舵装置 is a more formal, kanji-based technical term often used in specifications or manuals.
Compound of 自動 (automatic), 操舵 (steering), and 装置 (device). The term is a straightforward technical coinage.