>http://en.wikipedia.org/wiki/HMS_Astute_(S119)#Grounding_incident
>
>"One month before the incident, HMS Astute's commanding officer, Commander Andy Coles, was speaking to the BBC: "We have a brand new method of controlling the submarine, which is by platform management system, rather than the old conventional way of doing everything of using your hands. This is all fly-by-wire technology including only an auto pilot rather than a steering column.""
>
>Not very "astute", if you ask me :) Talk about laughingstocks.

They've had previous practice. Another one ran aground off Skye in 2002...