Marines Test ‘Cruise Control’ Swim Feature on Amphibious Vehicle Prototype

Why It Matters

The trials prove that automated amphibious platforms can enhance Marine operational tempo and survivability, shaping future procurement and doctrine.

Key Takeaways

• GDLS and Textron prototypes completed water entry and swim tests
• New autotrim function offers autopilot‑like course control
• Vehicles fired 30mm autocannon while afloat, testing stability
• High‑speed entry reached 25 mph, showing robust hull design
• Additional 16 prototypes ordered; final selection expected by 2030

Pulse Analysis

The Marine Corps’ aging amphibious fleet has long needed a modern replacement, and the Advanced Reconnaissance Vehicle (ARV) is positioned to fill that gap. By testing both General Dynamics Land Systems and Textron’s prototypes in real‑world water conditions, the service validated key performance metrics such as high‑speed water entry, turret stability, and maneuverability on a five‑kilometer swim course. These trials also address safety concerns that linger after the 2020 amphibious assault vehicle tragedy, incorporating automated bilge‑pump sensors that can expel water instantly.

A standout feature emerging from the tests is the autotrim or "cruise‑control" function, which mirrors aircraft autopilot and ground‑vehicle lane‑keeping technologies. By allowing crews to set a desired azimuth and letting the system maintain that heading, the ARV reduces cognitive load during river crossings or prolonged water transits. This automation not only improves firing accuracy—since the turret can stay on target while the hull self‑stabilizes—but also paves the way for future robotic controls and higher‑level autonomy across amphibious platforms.

Looking ahead, the Marine Corps will order 16 additional prototypes this fiscal quarter, with a competitive down‑select expected by 2030. The outcome will influence defense contractors’ investment strategies and could set a new standard for amphibious warfare, where integrated automation and rapid water‑borne mobility become decisive factors. As other services and allied nations observe these developments, the ARV’s success may drive broader adoption of automated amphibious systems across the global defense market.