The Russian Ministry of Defense has shared photos from a recent exercise in Pacific. They show the a Project 18270 BESTER rescue submersible (DSRV – Deep Sea Rescue Vehicle) deploying from the rescue ship Igor Belousov. Also shown is a British-built Saab SeaEye Tiger ROV (Remotely Operated Vehicle).
The same ship and BESTER DSRV AC-40 was tested in the Baltic in 2015.
The BESTER DSRV is launched and recovered from a hanger on the starboard side of the ship.
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The British-built Tiger ROV can reach depths of 1,000 feet. Russia is also developing the indigenous Marlin-350 ROV design to supplement the imported Tiger (and other Western ROVs):
This appears to be a diving bell which can act as a rescue chamber if placed precisely over the stricken submarine.
File images of the Igor Belousov:
A) Hangar for BESTER, B) Hydraulic A-frame Launch and Recovery System (LARS) for SeaEye Tiger ROV
I speculate that the hatches under the cradle in the hangar may connect downwards to decompression chambers (hyperbaric chambers) to allow transfer of saturation divers and/or rescued submariners who may suffer decompression sickness if exposed immediately to atmospheric pressure.
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