China has unveiled the Wing Loong X, a large autonomous drone it claims can independently detect, classify and strike submarines, marking a potential leap in maritime surveillance and anti-submarine warfare. The system’s endurance, ability to deploy sonobuoys and onboard AI processing could allow Beijing to keep persistent watch over critical waterways at a fraction of the cost of manned aircraft. Analysts caution, however, that the technology may be far from fully proven and could raise significant concerns over autonomous targeting.
Capabilities and Design Features
The Wing Loong X resembles earlier drones in the family but is substantially larger, with a wingspan similar to a small business jet and the ability to stay airborne for up to 40 hours. China says the UAV can release sonobuoys, analyze acoustic signatures using AI and engage targets with lightweight torpedoes. If accurate, these capabilities would allow it to replace traditional manned ASW aircraft, which are costly, maintenance-intensive and limited by crew fatigue.
Strategic and Regional Impact
A fleet of such drones operating for extended periods over strategic chokepoints could reshape the threat environment for submarines operating in the South China Sea. Continuous drone patrols would undermine the stealth advantages submarines rely on, complicating operations for US and allied navies. The platform’s relatively low cost also makes large-scale deployment plausible, potentially enabling China to saturate its near seas with persistent ASW coverage.
Concerns Over AI-Driven Targeting
Experts note serious risks associated with autonomous identification and engagement of submarine targets. Anti-submarine warfare is prone to false positives, and human operators traditionally interpret complex acoustic and electromagnetic data. A fully automated system would require flawless fusion of sonar, radar, infrared and electronic intelligence to avoid misidentifying whales, civilian vessels or environmental noise.
Technology Still Unproven
Although China promotes the Wing Loong X as operational, past unveilings have often involved conceptual systems rather than field-ready platforms. Even so, the decision to highlight an autonomous ASW drone signals Beijing’s assessment of future undersea threats and points to its long-term ambitions to counter adversary submarines through persistent, AI-enabled surveillance.


