On 2016-02-20 21:58, Richard Aiken wrote:
> Wikipedia states: "The Deep Submergence Rescue Vehicle (DSRV) is
> designed to rescue 24 people at a time at depths of up to 600 m (2000
> ft). Their maximum operating depth is 1500 m (5000 ft)."
>

This is more than deep enough to handle the continental shelves, at less
than 150m.  But their edges drop fairly quickly to the ocean basin
floors, which are over 3000m deep - even the Alpha would be SOL.

--
Edward Swatschek - xxxxxx@bitslayer.net