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Sonoboy · 11-12-07, 08:05 PM

I had 18 Nimitz spread out evenly along 180 degrees to my front, since I was using the sphere array for this experiment. They were successively spaced in intervals of 1nm starting at 1nm from ownship. All speeds were at 15kts. I simply changed depth under the layer until I was able to hear a contact, then find the exact depth at which contact was gained. I recorded 3 trials, each with a different layer depth. The graph below also has trendlines included. I would assume that layer depth in this experiment would also equal contact's altitude above the layer (I havent tested with submarines yet).

http://img228.imageshack.us/my.php?image=layergk9.jpg

The shadow zone would be to the right of the curve, and the detection zone to the left.

11-12-07, 08:05 PM	#6
Sonoboy Planesman Join Date: Aug 2005 Location: United States, CA Posts: 195 Downloads: 9 Uploads: 0	I had 18 Nimitz spread out evenly along 180 degrees to my front, since I was using the sphere array for this experiment. They were successively spaced in intervals of 1nm starting at 1nm from ownship. All speeds were at 15kts. I simply changed depth under the layer until I was able to hear a contact, then find the exact depth at which contact was gained. I recorded 3 trials, each with a different layer depth. The graph below also has trendlines included. I would assume that layer depth in this experiment would also equal contact's altitude above the layer (I havent tested with submarines yet). http://img228.imageshack.us/my.php?image=layergk9.jpg The shadow zone would be to the right of the curve, and the detection zone to the left. Last edited by Sonoboy; 11-12-07 at 08:17 PM.