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Gargamel · 04-04-11, 10:30 PM

Thread may be a bit premature, but from what I'm reading, the active systems are on All the time correct?

In a sub, they rarely turn them on cause the detection goes both ways. In the ACTUV scenario, we don't care about counter-detection. So it's firing constantly correct?

I know there has been issues with active sonar affecting wild life in the past. I personally have been SCUBA diving and heard sonar when the navy was some miles away doing ASW exercizes. It was pretty distracting, and they were far enough away that we never even saw them on the surface. I can only imagine how creatures that use sonar to survive react to that type of noise.

I would assume that this topic probably has been discussed to death over in GT, but the ACTUV angle is thus:

Will this project even be allowed to start if they can't get past the environmental groups? I know they (Greenpeace, EPA, etc) have sued the Navy and won (or at least settled) to prevent active sonar usage in some areas. How's it going to go over when it's an unmanned drone blindly pinging away?

04-04-11, 10:30 PM	#1
Gargamel Lucky Sailor Join Date: Oct 2010 Location: Rome Posts: 4,272 Downloads: 81 Uploads: 0	Effects on wildlife? Thread may be a bit premature, but from what I'm reading, the active systems are on All the time correct? In a sub, they rarely turn them on cause the detection goes both ways. In the ACTUV scenario, we don't care about counter-detection. So it's firing constantly correct? I know there has been issues with active sonar affecting wild life in the past. I personally have been SCUBA diving and heard sonar when the navy was some miles away doing ASW exercizes. It was pretty distracting, and they were far enough away that we never even saw them on the surface. I can only imagine how creatures that use sonar to survive react to that type of noise. I would assume that this topic probably has been discussed to death over in GT, but the ACTUV angle is thus: Will this project even be allowed to start if they can't get past the environmental groups? I know they (Greenpeace, EPA, etc) have sued the Navy and won (or at least settled) to prevent active sonar usage in some areas. How's it going to go over when it's an unmanned drone blindly pinging away? __________________ Luck is a residue of Design.