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TheSatyr · 05-08-07, 03:27 PM

A device came into usage on Fleet Boats around 1943 (I think) to be able to detect when a sub crossed a thermal layer. So yeah,they were able to detect them. I think it was also used to tell how deep the thermal layer was.

05-08-07, 03:27 PM	#1
TheSatyr Captain Join Date: Apr 2002 Posts: 545 Downloads: 0 Uploads: 0	A device came into usage on Fleet Boats around 1943 (I think) to be able to detect when a sub crossed a thermal layer. So yeah,they were able to detect them. I think it was also used to tell how deep the thermal layer was.