Hey Tom,

...is relying on C-Map's "Auto Routing" feature... Especially, in a place like Maine, in the fog... (grin)

This stuff all sounds pretty good, but like something as simple as a depth alarm, I can easily imagine the possibility of taking the decision to disable it, as a result of the persistent false alarms becoming such an annoyance... (grin)

The stuff from Panbo is always worth a read, it's a great resource. I don't think it's been linked to here yet, but I agree with Ben that David Burch's blog post from STARPATH is one of the better takes on this incident, well worth reading:

http://davidburchnavigation.blogspot.com/2014/12/dont-blame-echarts-for-anything.html

John Harries of MORGAN'S CLOUD is worth a read, as well:

http://www.morganscloud.com/2014/12/10/the-loss-of-team-vestas-wind/

best regards,

Jon