A Chinese team made a big splash with a drone swarm world record By Alec Hively Nov. 10, 2026 9:45 am EST Northwestern Polytechnical University Add Engadget on Google: Google Discover

Researchers have set a record for the largest swarm of underwater drones in history. Officially recognized by Guinness World Records, the trial saw 116 TH-618 drones deployed in a 164 ft by 65 ft pool, where they autonomously executed a series of formations and maneuvers. (For comparison, and Olympic-sized swimming pool is approximately 164 ft by 82 ft.)