MIL-R-81355B, MILITARY SPECIFICATION; RECORDER, BATHYTHERMOGRAPH DATA RO-308/SSQ-36 (01 OCT 1968) [NO S/S DOCUMENT]
MIL-R-81355B, MILITARY SPECIFICATION; RECORDER, BATHYTHERMOGRAPH DATA RO-308/SSQ-36 (01 OCT 1968) [NO S/S DOCUMENT]., The equipment covered by this spec shall provide a permanent record of the temperature profile of sea water from sea level to a depth of 1,000 feet. The equipment shall be used in naval aircraft for the purposes of oceanographic research and anti-submarine warfare.