I was assigned to a destroyer with anti-submarine weapons. We would play ‘war games’ with many other subs and ships. I was told we were eliminated many more times than we did the eliminating!
I was a boiler technician and on the lower level of the fireroom we had two steam turbine air compressors called “Prairie Maskers”. The idea was to blow a blanket of air bubbles along the hull and thru the shaft and prop to insulate us from the subs ‘pings’. Don’t know how well it worked for that purpose, but when we fired up the “Prairie Maskers”, all the ships stoners would converge on the lower level of the fireroom, torch up their doobies and blow the smoke into the compressors intakes thus sending all the evidence out to sea!http://en.wikipedia.org/wiki/Prairie-Masker