USNS WALTER S DIEHL is a tankers built in 1988 and currently sailing under the flag of USA.

Bowditch gathered data that provided much of the military's information on the ocean environment, which in turn, stabilized the safety and mission of Sailors and servicemen. The ship's success lies in the multi-beam contour mapping system, and wide-angle side-scan sonar systems, which continuously collect data over a broad strip of ocean floor.

The USNS Henson is an oceanographic survey ship owned by the United States Navy and is used to collect data for the purpose of geophysical, biological, physical and acoustical surveys.