The R/V Thomas G. Thompson is a research vessel owned by the Office of Naval Research (ONR) and operated under a Charter Party agreement by the School of Oceanography at the University of Washington as part of the UNOLS fleet (University National Oceanographic Laboratories System). The R/V Thomas G. Thompson (AGOR-23) was constructed by Halter Marine and was delivered to ONR on 8 July 1991 and recently completed its mid-life overhaul at the end of 2017. The Thompson is 274 ft in length, 52.5 ft. beam, and at full load has a 19 foot draft. The normal cruising speed is 11 knots, and offers a ships complement for 21 officers and crew, 2 marine technicians and berthing for up to 36 scientists. The Thomas G. Thompson is one of four “global class” research ships, which were all built to the same basic design. The three sister ships are NOAAS Ronald H. Brown (NOAA), R/V Roger Revelle (Scripps), and R/V Atlantis (Woods Hole Oceanographic Institution).