Before reporting to OcUnit One on USNS Bowditch I attended two technical schools, one for the CP677 computer in Dam Neck, VA,and a second for the SASS bathymetry sonar at Harris ASW in Westwood, MA. Here are the graduation certificates.

Course Graduation Certificate, Spec Tech CP677

The CP-677 computer was the data processing equipment for the SASS multibeam sonars used on Bowditch, Dutton and Michelson (and on USS Compass Island AG-153). It was also used on the BRN-3 Satellite Navigation Receiver and as NAVDAC, the navigation data assimilation computer.

Course Completion Certificate, SASS

SASS was the first multibeam, stabilized, bathymetry sonar, now commonly called SWATH sonars.