The Submarine Rescue Diving and Recompression System's (SRDRS) Rescue Capable System (RCS) replaced the Deep Submergence Rescue Vehicle Mystic (DSRV-1) as the U.S. Navy's deep-submergence submarine rescue asset on Sept. 30. Mystic and the DSRV program began deactivation on Oct. 1.
RSRDS is a rapidly deployable rescue asset that can be delivered by air or ground, installed on pre-screened military or commercial vessels of opportunity (VOO) via a ship interface template, and mated to a distressed submarine within a 72-hour time to first rescue period.
Mystic is a small rescue submarine capable of deploying via air or ground to a port where it is mated to a specially-configured submarine which serves as the host platform for the voyage to the disabled submarine.
SRDRS is a three-phased acquisition program that will deliver advanced submarine rescue and treatment assets to the fleet. The first phase of the program was the Atmospheric Dive System 2000 (ADS2000) which was delivered to the Navy in 2006. ADS2000 is a manned, one-atmosphere dive suit capable of inspecting disabled submarines and clearing debris from escape hatches. The RCS constitutes SRDRS' second phase.
The final phase of the SRDRS program is the Submarine Decompression System (SDS), scheduled for delivery in late 2012. SDS will allow rescued submariners to remain under pressure during the transfer from the PRM to hyperbaric treatment chambers aboard the VOO.
Unlike Mystic, which could only be transported to the disabled submarine via modified submarines, SRDRS is a "fly-away" system that can quickly and easily be mobilized via large military or civilian transport aircraft and installed aboard a variety of VOOs within hours of notification of a submarine in distress.
SRDRS will be based out of , and operated by the Navy's Deep Submergence Unit.
(Source-From the Navy News)