Clay,
Was just messing around here a few hours ago. I ran across these freighters with three DD's in a heavy fog and pouring down rain. I've done a quick run through of the degree line as in this case I picked a freighter in the middle and they are all running 83 degrees. In the area they are I don't expect them to alter course just yet but getting to that 700 yard mark ( may push 600 if I can sucker that first DD

) will be close to their getting there before I do.
We will see what happens later. ( like in a couple of days ? )
BTW that large circle is the first DD's radar range and I'll be safe on the surface ( as I am at this point ) until that circle hits where my waypoint line is, by then I'd BETTER be below the surface although the rain and fog will mess me up on seeing him I'm not taking any chances on him not seeing me.
Jeez its in the wee hours I need sleep.