View Single Post
Old 01-31-09, 08:06 AM   #4
Q3ark
Watch Officer
 
Join Date: Apr 2007
Location: York, England
Posts: 346
Downloads: 47
Uploads: 0
Default

I think the small one you have labeled as visibility is the active sonar, where they can ping you. The next one up is the passive sonar (he can't here you from behind because of his engines) and the next one i'll have to guess at radar, I don't think it is the visual range as passive sonar can hear stuff from further out than can be seen.

Hope this helps matey
__________________
Johnny was a chemist's son,
But Johnny is no more.
What Johnny thought was H20
was H2SO4.
Q3ark is offline   Reply With Quote