A small waterplane area twin hull, better known by the acronym SWATH, is a catamaran design that minimizes hull cross section area at the sea's surface. Minimizing the ship's volume near the surface area of the sea, where wave energy is located, minimizes a vessel's response to sea state, even in high seas and at high speeds. The bulk of the displacement necessary to keep the ship afloat is located beneath the waves, where it is less affected by wave action. Wave excitation drops exponentially as depth increases, so wave action normally does not affect a submerged submarine at all. Placing the majority of a ship's displacement under the waves is similar in concept to creating a ship that rides atop twin submarines.
A research vessel is a ship or boat designed, modified, or equipped to carry out research at sea. Research vessels carry out a number of roles. Some of these roles can be combined into a single vessel but others require a dedicated vessel. Due to the demanding nature of the work, research vessels may be constructed around an icebreaker hull, allowing them to operate in polar waters.
BRP Gregorio Velasquez is Philippine Navy's first oceanographic research vessel. It was built by the United States Navy as USNS Melville (T-AGOR-14) for university support of Navy programs. The ship was operated as the research vessel R/V Melville by the Scripps Institution of Oceanography for oceanographic research. As the R/V Melville, it was the oldest active vessel in the academic research fleet, collectively known as the University-National Oceanographic Laboratory System (UNOLS) (UNOLS). The US Government confirmed on 17 November 2015 that the Melville was to be transferred to the Philippine Navy as Excess Defense Articles (EDA)s. The vessel was officially transferred to the Philippines on 28 April 2016 and was commissioned into active service at the same time with the Philippine Navy.
R/P FLIP is an open ocean research platform that was owned by the U.S. Office of Naval Research (ONR) and operated by the Scripps Institution of Oceanography. The platform is 108 meters (355 ft) long and is designed to partially flood and pitch backward 90°, resulting in only the front 17 meters (55 ft) of the platform pointing up out of the water, with bulkheads becoming decks. When flipped, most of the buoyancy for the platform is provided by water at depths below the influence of surface waves, hence FLIP is stable and mostly immune to wave action, similar to a spar buoy. At the end of a mission, compressed air is pumped into the ballast tanks in the flooded section and the platform, which has no propulsion, returned to its horizontal position so it can be towed to a new location. The platform is frequently mistaken for a capsized ocean transport ship.
RV Atlantis is a Thomas G. Thompson-class oceanographic research ship, owned by the US Navy and operated by the Woods Hole Oceanographic Institution as part of the University-National Oceanographic Laboratory System (UNOLS) fleet. She is the host vessel of DSV Alvin. She is named for the first research vessel operated by WHOI, the sailboat RV Atlantis, for which the Space ShuttleAtlantis is also named.
RV Knorr was a research vessel formerly owned by the U.S. Navy and operated by the Woods Hole Oceanographic Institution for the U.S. research community in coordination with and as a part of the University-National Oceanographic Laboratory System (UNOLS) fleet. On March 14, 2016, Knorr was officially transferred to the Mexican Navy and renamed Rio Tecolutla. She was replaced at Woods Hole by the RV Neil Armstrong. Knorr is best known as the ship that supported researchers as they discovered the wreck of the RMS Titanic in 1985. R/V Knorr (AGOR-15) has traveled more than a million miles—the rough equivalent of two round trips to the Moon or forty trips around the Earth. Her sister ship is the RV Melville.
RV Roger Revelle is a Thomas G. Thompson-class oceanographic research ship operated by Scripps Institution of Oceanography under charter agreement with Office of Naval Research as part of the University-National Oceanographic Laboratory System (UNOLS) fleet. The ship is named after Roger Randall Dougan Revelle, who was essential to the incorporation of Scripps into the University of California San Diego.
RV Thomas G. Thompson (AGOR-23) is an oceanographic research vessel and lead ship of her class, owned by the United States Office of Naval Research and operated under a bareboat charterparty agreement by the University of Washington as part of the University-National Oceanographic Laboratory System (UNOLS) fleet.
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 (NOAA) as the oceanographic research ship NOAAS McArthur II. As of 2018 it serves as a mother ship now named the Deep Submersible Support Vessel (DSSV) Pressure Drop for the crewed deep-ocean research submersible DSV Limiting Factor.
USNS Adventurous (T-AGOS-13) was a Stalwart-class modified tactical auxiliary general ocean surveillance ship of the United States Navy in service from 1988 to 1992. She was in non-commissioned service in the Military Sealift Command from 1988 to 1992, operating during the final years of the Cold War. She was transferred to the National Oceanic and Atmospheric Administration (NOAA) in 1992 and in 2003 was commissioned into service with NOAA as the fisheries research ship NOAAS Oscar Elton Sette.
USS Snatch (ARS-27), well known as Scripps RV Argo after conversion to scientific research, was a Diver-class rescue and salvage ship commissioned by the U.S. Navy during World War II and in service from 11 December 1944 through 23 December 1946. Her task was to come to the aid of stricken vessels. The ship is better known from her scientific research role as the Scripps Institution of Oceanography (SIO) research vessel RV Argo. It is that name, apparently not formally recognized by Navy that maintained title to the vessel, found in the scientific literature and public releases about her wide ranging research voyages.
Gyre (T-AGOR-21), best known as RV Gyre, was the lead ship of her class of oceanographic research ships acquired by the U.S. Navy in 1973 for assignment to the University-National Oceanographic Laboratory System (UNOLS) fleet of Navy owned ships. Gyre was operated by the Texas A&M University School of Oceanography as part of the Navy owned UNOLS fleet until stricken 17 August 1992 and transferred to the university under a program transferring ships to states, schools and other public institutions. The university operated the ship until sale in December 2005.
RV Kilo Moana (AGOR-26) is a small waterplane area twin hull (SWATH) oceanographic research ship owned by the US Navy and operated by the University of Hawaii as a part of the U.S Academic Research Fleet and a member of University-National Oceanographic Laboratory System (UNOLS). She was designed to operate in coastal and blue water areas. The unique SWATH hull-form provides a comfortable, stable platform in high sea conditions.
USS Mobjack (AVP-27/AGP-7) was a motor torpedo boat tender in commission in the United States Navy from 1943 to 1946. She saw service in the Pacific theater during the latter portion of World War II.
USNS S. P. Lee was laid down on 27 June 1966 by the Defoe Shipbuilding Co., Bay City, Michigan as yard hull number 441. The ship, sponsored by Mrs. David Scull, great-granddaughter of Admiral Lee, was launched on 19 October 1967 and delivered to the navy on 2 December 1968.
Alpha Crucis is the most recent oceanographic research vessel in Brazil, replacing the older Wladimir Besnard research vessel. It is named after the Alpha Crucis star system that represents São Paulo state in the Brazilian flag. It is 64 metres (210 ft) long and 11 metres wide, and has capacity for 25 researchers and is capable of remaining 40 days without being resupplied.
RV Neil Armstrong (AGOR-27) is the designation for a new oceanographic research ship, first of the Neil Armstrong-class research vessels, to be owned by the United States Navy and operated by Woods Hole Oceanographic Institution. Secretary of the Navy Ray Mabus announced on September 24, 2012, that the research vessel was to be named after Neil Armstrong, the first person to walk on the Moon and a former naval aviator who served in the Korean War.
RV Sally Ride (AGOR-28) is a Neil Armstrong-class research vessel owned by the United States Navy and operated by the Scripps Institution of Oceanography. She was launched in 2014 and put into service in 2016.
Moninya Roughan is a professor of Oceanography at the University of New South Wales Australia,. Roughan is the head of the Coastal and Regional Oceanography Lab and is an authority on the oceanography of the East Australian Current. She has led major projects for industry, government, the Australian Research Council and the New Zealand Ministry of Business Innovation and Employment. She has held leadership roles in Australia's Integrated Marine Observing System since 2007.
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