German firms GABLER and FLANQ have demonstrated a groundbreaking unmanned surface vessel capable of launching from submarine torpedo tubes, successfully completing sea trials that confirmed the platform’s performance in real-world maritime conditions. The system, called Ranger, is intended to provide naval forces with a covert and flexible method of deploying autonomous surface assets.
Designed to fit inside standard 21-inch torpedo tubes, Ranger can be launched from submarines and conduct independent intelligence, surveillance, and reconnaissance missions. The more-than-4.5-meter-long vessel features a folding keel, deployable sensor mast, modular payload compartment, and electric propulsion system, enabling effective operations in demanding sea environments.
The recent Sea Acceptance Test verified the vessel’s core technologies and demonstrated the feasibility of the torpedo-tube-launched USV concept, bringing the platform closer to operational service.
FLANQ contributed the vessel’s AI-driven autonomy, mission software, and open-system architecture, while GABLER will oversee production, customer engagement, and future integration programs. The companies are also developing a strike-focused variant named Strike, expanding the platform family beyond reconnaissance missions.
By enabling autonomous vessels to be deployed from submarines, Ranger offers navies a way to extend surveillance and operational reach while maintaining the stealth and protection of underwater platforms. The developers view the Ranger and Strike concepts as important components of future hybrid maritime operations and autonomous naval warfare strategies.
