page_title: USNS Indomitable (T-AGOS-7)
section_title: Caladan Oceanic LLC service
hierarchical_section_title: USNS Indomitable (T-AGOS-7) / Caladan Oceanic LLC service
caption_attribution_description: Deutsch: Dieses Bild wurde im Rahmen der Tauchgänge im Atlantischen Ozean aufgenommen.
context_page_description: USNS Indomitable (T-AGOS-7) was a United States Navy Stalwart class ocean surveillance ship in service from 1985 to 2002. From 2003 until 18 June 2014, she was in commission in the National Oceanic and Atmospheric Administration as the oceanographic research ship NOAAS McArthur II.
  As of 2018 it serves as a mother ship now named the Deep Submersible Support Vessel Pressure Drop for the manned deep-ocean research submersible DSV Limiting Factor.
context_section_description: In 2017 the vessel was bought by Caladan Oceanic LLC and prepared to serve as a mother ship for the manned deep-ocean research submersible DSV Limiting Factor. The vessel was named DSSV Pressure Drop because the financial sponsor Victor Vescovo admires the ship names found in the  Culture novels written by Iain M. Banks. 
  Beginning in December 2018, the Pressure Drop began execution of the Five Deeps Expedition to support a manned submersible visit to the bottom of all five of the world's oceans. On December 19, 2018, the first of the five oceans bottoms was visited: the bottom of the Atlantic at the Puerto Rico trench. In August 2019, the Pressure Drop completed the Five Deeps Expedition after the Limiting Factor submersible successfully made the first manned descent to the bottom of the Arctic Ocean, the Molloy Deep.
caption: The Mothership Pressure Drop during the preparation for a dive of the deep diving submersible Limiting Factor.
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