March 26, 2021 US Navy recovers helicopter lost in 2020 crash off Okinawa Written by Baird Maritime on March 26, 2021. Posted in Commercial Mariner - Maritime Security, Salvage Operations, Unmanned Craft (Non-Naval). The Supervisor of Salvage and Diving (SUPSALV) of the US Navy’s Naval Sea Systems Command (NAVSEA) recovered a downed US Navy helicopter from a depth of 5,814 .. Read More