21 March 2022 Navy, Coast Guard test unmanned rescue craft Maritime Expeditionary Security Squadron (MSRON) 4 and United States Coast Guard Cutter Razorbill, evaluated the Unmanned Diesel Greenough Advanced Rescue Craft (UD-GARC) in the Chesapeake Bay, Feb. 8, during Exercise Solid Curtain 2022.The joint team tested the technology during a simulated...