If they have radar, it would be a full circle, like the visual. It might be drawn with a dark green color (??) - don't quote me on that... I'm not dure what they're trying to sdhow with the sonar circles... The missing lobe to the rear is passive, in the baffles, but the two different angles up front, I'm not sure. One is active, but which one??... Someone has a thread on here somewhere with artwork, but I can't find it. CapnScurvy?? THEBERBSTER??
