I hope it's safe to say that the US Underwater Labortory had a plan in the late 60's to put two sonarman in a small sonar pod and float it off away from the boat so they could detect anything in their patrol area without own ships noise.
The plan was just to do this every once in a while and then real them in for food and a rest.
I remember our sonar gang kidding around about who would volunteer for a crazy thing like that while we cruised the Med at 2 to 4 kts around 200' on the Ethan Allen SSBN 608.
Did you ever hear of that crazy plan Sonar 732?
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