A Humanoid at the Helm
South Korea's Navy has tested a humanoid robot as a ship crew member for the first time, placing KAIST's PIBOT at the wheel inside a bridge simulator as part of efforts to reduce sailors' workload and prepare for a shrinking pool of military personnel.
The experiment was conducted on July 23 at the Naval Education and Training Command's ship-handling training facility in Changwon, South Gyeongsang Province, in cooperation with KAIST — one of Asia's leading research institutions for humanoid robotics.
Standard Naval Procedures, Executed by a Machine
Video footage released by the Navy showed PIBOT standing at the helm inside a bridge simulator designed to replicate a naval vessel. An officer of the watch gave PIBOT a helm order through a handheld microphone: "Rudder left five degrees, steady on 330."
PIBOT repeated the command, moved its mechanical arm toward the wheel, and turned the steering gear. After the simulated vessel's heading stabilized, the robot reported that the course change had been completed. The repeat-back procedure is a standard part of ship handling, used to ensure helm orders are clearly received and correctly executed.
Four-Stage Combat Experiment Program
The test was conducted under a range of simulated conditions including narrow-channel navigation, rough weather, and nighttime operations. The combat experiment will proceed in four stages:
- Land-based ship-handling simulation (completed July 23)
- Testing aboard a docked vessel
- Daytime sea trials
- Long-duration day-and-night sea trials at sea
Navy Sea GHOST Initiative
The project is linked to the Navy's broader Navy Sea GHOST initiative, a manned-unmanned maritime combat system designed to integrate unmanned platforms and advanced technologies into future naval operations.
Rear Admiral Kim Hyung-jun, head of the Navy Force Analysis, Test and Evaluation Group, said: "The Navy will use the results of this experiment to explore ways to operate robots aboard ships, reduce the workload of ship crews and actively respond to a changing defense environment, including a sharp decline in military manpower."
PIBOT: From Defense Lab to Ship Bridge
PIBOT has been under development by KAIST since 2022 under a defense technology program from the Agency for Defense Development (ADD), with $4.1 million in funding from the Defense Acquisition Program Administration.
KAIST professor Shim Hyun-chul, who leads the research team, said it was meaningful to test whether a humanoid robot based on physical AI technology could perform the role of a Navy helmsman — a task requiring precise mechanical coordination and real-time response to dynamic maritime conditions.
Why It Matters for the Humanoid Industry
This experiment represents a significant milestone: the first time a humanoid robot has been tested in a naval combat role, following standard military procedures alongside human crew members. It signals the expanding scope of humanoid robot deployment beyond factories and labs into defense and maritime operations — sectors where precision, reliability, and endurance under stress are paramount.
For South Korea, with one of the world's lowest birth rates and a rapidly aging population, the military manpower challenge is existential. Humanoid robots like PIBOT offer a pathway to maintain operational readiness without proportional increases in personnel — a model that other nations with similar demographic challenges may soon follow.
