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{{Short description|Research vessel}}
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|Ship length={{convert|279|ft|m|abbr=on}}
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'''R/V ''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.<ref>http://www.unols.org/info/vessels.htm | UNOLS Research Vessels</ref> On March 14, 2016, ''Knorr'' was officially transferred to the Mexican Navy and renamed ''[[Tecolutla River|Rio Tecolutla]]''. She was replaced at Woods Hole by the ''[[RV Neil Armstrong]]''.<ref>{{cite web |author-last=Carter |author-first=Andrea F. |url=http://www.capenews.net/falmouth/news/renamed-rio-tecolutla-r-v-knorr-joins-the-mexican-navy/article_700e882e-39ca-5197-895c-ac0e55128217.html |title=Renamed Rio Tecolutla, R/V Knorr Joins The Mexican Navy |publisher=The Falmouth Enterprise |date=March 14, 2016 |accessdate=January 6, 2017}}</ref> ''Knorr'' is best known as the ship that supported researchers on 1 September 1985 as they discovered the wreck of the [[RMS Titanic|RMS ''Titanic'']]. 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 [[R/V Melville|R/V ''Melville'']].
'''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.<ref>{{cite web |url=http://www.unols.org/info/vessels.htm |title=UNOLS Vessels |accessdate=2011-11-02 |url-status=dead |archiveurl=https://web.archive.org/web/20110929015616/http://www.unols.org/info/vessels.htm |archivedate=2011-09-29 }} | UNOLS Research Vessels</ref> 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}}.<ref>{{cite web |author-last=Carter |author-first=Andrea F. |url=http://www.capenews.net/falmouth/news/renamed-rio-tecolutla-r-v-knorr-joins-the-mexican-navy/article_700e882e-39ca-5197-895c-ac0e55128217.html |title=Renamed Rio Tecolutla, R/V Knorr Joins The Mexican Navy |publisher=The Falmouth Enterprise |date=March 14, 2016 |accessdate=January 6, 2017}}</ref> ''Knorr'' is best known as the ship that supported researchers as they discovered the [[Wreck of the RMS Titanic|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 [[BRP Gregorio Velasquez (AGR 702)|RV ''Melville'']].


==History==
==Ship==
R/V ''Knorr'' was named in honor of [[Ernest R. Knorr]], a distinguished [[hydrographic engineer]] and [[cartographer]] who was appointed Chief Engineer [[Cartographer]] of the U.S. Navy Hydrographic office in 1860. Chief Engineer Knorr was one of the leaders of the Navy’s first systematic [[charting]] and [[surveying]] effort from 1860 to 1885. She was launched in 1968 at the [[Defoe Shipbuilding Company]] in [[Bay City, Michigan]], ''Knorr'' was delivered to [[Woods Hole]] in 1970. For her early life, she had [[Voith-Schneider]] propellers{{Citation needed|date=August 2007}}. In 1985, she was part of the joint French-American Team that discovered the wreck of the [[RMS Titanic]], and was the ship to actually discover the site. As opposed to the traditional method of sonar, this was accomplished by towing the ROV ''Argo'' over the seafloor to search for debris. She was completely overhauled between 1989 and 1991 adding {{convert|34|ft|m}} of length to her midsection [http://www.whoi.edu/page.do?pid=11458&tid=201&cid=17872&ct=362].
R/V ''Knorr'' was named in honor of [[Ernest R. Knorr]], a distinguished [[hydrographic engineer]] and [[cartographer]] who was appointed Chief Engineer [[Cartographer]] of the U.S. Navy Hydrographic office in 1860. Chief Engineer Knorr was one of the leaders of the Navy’s first systematic [[Nautical chart|charting]] and [[surveying]] effort from 1860 to 1885. She was launched on August 21, 1968 at the [[Defoe Shipbuilding Company]] in [[Bay City, Michigan]], ''Knorr'' was delivered to [[Woods Hole]] on April 15, 1970.<ref>{{cite book |last=Cullen |first=Vickey |year=2005 |title=Down to the Sea for Science: 75 Years of Ocean Research, Education, and Exploration at the Woods Hole Oceanographic Institution |location=Woods Hole, Mass. |publisher=Woods Hole Oceanographic Institution |isbn=9781880224090 |lccn=2008530726 |page=194 |url=https://books.google.com/books?id=jEam4GMsdXIC&pg=PA124 |accessdate=5 August 2019}}</ref>


The ship was built with [[Cyclorotor|Cycloidal propulsion]] that was replaced during a 1989-1991 midlife refit at which time propulsion was changed to two azimuthing stern thrusters and a retractable bow thruster as well as the hull being lengthened from {{cvt|246|ft|m|1|abbr=on}} to {{cvt|279|ft|m|1|abbr=on}}. The overhaul between 1989 and 1991 added {{convert|34|ft|m}} of length to her midsection.<ref name="Woods Hole Oceanographic Institution">{{cite web| title=Woods Hole Oceanographic Institution| website=Woods Hole Oceanographic Institution| url=http://www.whoi.edu/page.do?pid=11458&tid=201&cid=17872&ct=362| url-status=dead| archiveurl=https://web.archive.org/web/20110609014925/http://www.whoi.edu/page.do?pid=11458&tid=201&cid=17872&ct=362| archive-date=9 June 2011| access-date=1 April 2019}}</ref>
The ship has anti-roll tanks and an ice-strengthened bow enabling her to work in all of the world’s oceans. She can take a crew of 22 and a scientific party of 34 to sea for as long as 60 days. ''Knorr'' was designed to accommodate a wide range of oceanographic tasks, with two instrument hangars and eight scientific work areas; a fully equipped machine shop; three oceanographic winches; and two cranes. ''Knorr'' is equipped with sophisticated navigation and satellite communication systems, as well as a [[dynamic positioning]] system that allows the ship to move in any direction and to maintain a fixed position in high winds and rough seas.[http://www.whoi.edu/page.do?pid=11458&tid=201&cid=17872&ct=362]


In 2003 a Dynamic Positioning System capable of holding the ship in position within one meter was installed providing capability for ocean drilling and other precise operations. During a 2005–2006 refit a {{convert|25000|lb|kg}} long coring system capable of {{cvt|150|ft|m|1|abbr=on}}, longest in the U.S. research fleet, deep cores was installed.<ref>{{cite web |last=U.S. Navy |title=Interesting Facts about the R/V ''Knorr'' |publisher=UNOLS |date=November 2014 |url=https://www.unols.org/sites/default/files/InterestingFactsabouttheKnorr.pdf |accessdate=5 August 2019}}</ref>
In 2005–2006, the ship was refitted to support a new “long-coring” system that can extract {{convert|150|ft|m|0|sing=on}} plugs of ancient sediments from the sea floor. Weighing nearly 25,000 pounds, the new piston-coring system is the longest in the U.S. research fleet (twice as long as existing systems). ''Knorr'' and its long-corer will allow scientists to sample deep, ancient sediments that are rich with historical information about the ocean and climate.


The ship has anti-roll tanks and an ice-strengthened bow enabling her to work in all of the world’s oceans. She can take a crew of 22 and a scientific party of 34 to sea for as long as 60 days. ''Knorr'' was designed to accommodate a wide range of oceanographic tasks, with two instrument hangars and eight scientific work areas; a fully equipped machine shop; three oceanographic winches; and two cranes. ''Knorr'' is equipped with sophisticated navigation and satellite communication systems, as well as a [[dynamic positioning]] system that allows the ship to move in any direction and to maintain a fixed position in high winds and rough seas.<ref name="Woods Hole Oceanographic Institution"/>
It was announced on December 4, 2014 that the research vessel ''Knorr'' is being decommissioned after more than 40 years as the workhorse of the Woods Hole Oceanographic Institution research fleet. It was transferred to the Mexican Navy in 2016, and is scheduled to be replaced by a new $74 million research vessel, the [[RV Neil Armstrong|RV ''Neil Armstrong'']].<ref>https://news.yahoo.com/1-3m-miles-end-era-research-ship-191052508.html</ref>

In 2005–2006, the ship was refitted to support a new “long-coring” system that can extract {{convert|150|ft|m|0|adj=on}} plugs of ancient sediments from the sea floor. Weighing nearly 25,000 pounds, the new piston-coring system is the longest in the U.S. research fleet (twice as long as existing systems). ''Knorr'' and its long-corer will allow scientists to sample deep, ancient sediments that are rich with historical information about the ocean and climate.

==Role in search for ''Thresher'', ''Scorpion'', and ''Titanic''==
In 1985, operated by the [[Woods Hole Oceanographic Institute|Woods Hole Oceanographic Institution]], she was the ship that discovered the [[wreck of the RMS Titanic|wreck of the RMS ''Titanic'']], using [[side scan sonar]].<ref name="Discovery">{{cite web|url=http://www.titanic-titanic.com/discovery_of_titanic.shtml|title=Discovery Of Titanic}}</ref>

The [[United States Navy|U.S. Navy]] was interested in finding out what happened to their missing [[nuclear submarine|nuclear powered]] attack submarines, the [[USS Scorpion (SSN-589)|USS ''Scorpion'']] and the [[USS Thresher (SSN-593)|USS ''Thresher'']], which sank in the 1960s.<ref>{{Cite web|url=https://edition.cnn.com/2018/12/13/us/titanic-discovery-classified-nuclear-sub/index.html|title=Inside the secret US military mission that located the Titanic|last=Levenson|first=Eric|date=14 December 2018|access-date=7 January 2018}}</ref> [[Robert Ballard]] approached the Navy about using his new deep sea underwater robot craft, the [[Argo (ROV)|''Argo'']], to search for the ''Titanic''.<ref name="Navy">{{cite news |first=Lewis |last=Smith |title=Titanic search was cover for secret Cold War subs mission |url=http://www.timesonline.co.uk/tol/news/world/us_and_americas/article3994955.ece |work=[[The Times]] |date=2008-05-24 |access-date=2008-05-26 | location=London}}</ref> The Navy agreed it would finance use of the RV Knorr for Ballard's ''Titanic'' search only if he first searched for and investigated the two sunken submarines,<ref name="Navy"/> and found out the state of their nuclear reactors after being submerged for such a long time,<ref name="Navy"/> and whether their radioactivity was impacting the environment.<ref name="Navy"/> When they searched for the two submarines, Ballard and his team discovered that they had imploded from the immense pressure at depth.<ref name="Cover up">{{cite web|url=http://www.cdnn.info/news/industry/i080602a.html|title=栄養豊富な青汁を離乳食に役立てよう|website=www.cdnn.info}}</ref> It littered thousands of pieces of debris all over the ocean floor.<ref name="Cover up"/> Following the large trail of debris led them directly to both<ref name="Cover up"/> and made it significantly easier for them to locate them than if they were to search for the hulls directly.<ref name="Cover up"/> Using that lesson, they had ''Argo'' sweep back and forth across the ocean floor to find the ''Titanic's'' debris trail, following the trail to the wreckage of the ship itself.<ref name="Discovery"/>

==Decommissioning==

It was announced on December 4, 2014, that the research vessel ''Knorr'' was being decommissioned after more than 40 years as the workhorse of the Woods Hole Oceanographic Institution research fleet.<ref name="Subsea Mexico Transfer"/> The ship's last full research cruise, with Chief Science Officer [[Richard W. Murray]], was completed in December 2014.<ref>{{cite web |title=Headed for Home Port |url=https://researcherridge2014.wordpress.com/2014/12/02/farewell-to-the-knorr/ |website=Sea Change: notes from Researcher Ridge |language=en |date=2 December 2014}}</ref><ref name="Driscoll">{{cite news |last1=Driscoll |first1=Sean F. |title=After a million miles for science, the Knorr comes home |url=https://www.capecodtimes.com/story/news/education/2014/12/04/after-million-miles-for-science/35807500007/ |work=Cape Cod Times |date=December 4, 2014}}</ref> ''Knorr'' was transferred to the Mexican Navy in 2016, and was replaced by a new $74 million research vessel, the [[RV Neil Armstrong|RV ''Neil Armstrong'']].<ref name="Subsea Mexico Transfer">{{cite web | title=WHOI Gets RV Neil Armstrong | website=Subsea World News | date=25 September 2015 | url=https://subseaworldnews.com/2015/09/25/whoi-gets-rv-neil-armstrong/ | access-date=1 April 2019}}</ref><ref name="Driscoll 2016">{{cite web | last=Driscoll | first=Sean F. | title=WHOI research vessel Knorr to find new home in Mexico | website=capecodtimes.com | date=16 February 2016 | url=https://www.capecodtimes.com/news/20160216/whoi-research-vessel-knorr-to-find-new-home-in-mexico | access-date=1 April 2019}}</ref>


==Specifications==
==Specifications==
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*'''Built''': 1969
*'''Built''': 1969
*'''Length''': 279 feet (85 m)
*'''Length''': 279 feet (85 m)
*'''Draft:''' 16.5 feet (5 m), with bow thruster lowered - 23 ft (7 m)
*'''Draft:''' 16.5 feet (5 m), with bow thruster lowered 23&nbsp;ft (7 m)
*'''Displacement:''' 2,685 LT
*'''Displacement:''' 2,685 LT
*'''Range:''' 12,000 NM
*'''Range:''' 12,000 NM
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*'''Endurance:''' 60 days
*'''Endurance:''' 60 days
*'''Fuel Capacity:''' 160,500 gallons
*'''Fuel Capacity:''' 160,500 gallons
*'''Mid-Life Overhaul:''' 1989-1991
*'''Mid-Life Overhaul:''' 1989–1991
*'''Beam:''' 46 feet (14 m)
*'''Beam:''' 46 feet (14 m)
*'''Gross Tons''': 2,518 T
*'''Gross Tons''': 2,518 T
*'''Complement:'''
*'''Complement:'''
**'''Crew''' - 22
**'''Crew''' 22
**'''Scientists''' - 32
**'''Scientists''' 32
**'''Technicians''' - 2
**'''Technicians''' 2
*'''Propulsion:''' Two Lips diesel-electric azimuthing stern thrusters, 1500 SHP each
*'''Propulsion:''' Two Lips diesel-electric azimuthing stern thrusters, 1500 SHP each
*'''Bow Thruster:''' Lips retractable azimuthing 900 SHP
*'''Bow Thruster:''' Lips retractable azimuthing 900 SHP
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*'''Portable Van Space:''' At least six 20-ft. vans
*'''Portable Van Space:''' At least six 20-ft. vans
*'''Winches:'''
*'''Winches:'''
**Trawl - 30,000' 9/16" wire
**Trawl 30,000' 9/16" wire
**Hydro (2) - 30,000' 3-cond. EM or 1/4" wire
**Hydro (2) 30,000' 3-cond. EM or 1/4" wire
*'''Heavy Equipment:'''
*'''Heavy Equipment:'''
**Cranes - two 60,000&nbsp;lbs. capacity
**Cranes two 60,000&nbsp;lbs. capacity
**Midships hydro boom
**Midships hydro boom
**HIAB crane
**HIAB crane
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Ownership: Title held by U.S. Navy; Operated under charter agreement with Office of Naval Research
Ownership: Title held by U.S. Navy; Operated under charter agreement with Office of Naval Research


Other Features: Two instrument hangars, fully equipped machine shop, dynamic-positioning system, four transducer wells, one rigid-hull inflatable rescue/work boat<ref>http://www.whoi.edu/page.do?pid=8496</ref>
Other Features: Two instrument hangars, fully equipped machine shop, dynamic-positioning system, four transducer wells, one rigid-hull inflatable rescue/work boat.<ref name="WHOI Specifications">{{cite web | title=Specifications | website=Woods Hole Oceanographic Institution | url=http://www.whoi.edu/page.do?pid=8496 | access-date=1 April 2019}}</ref>

==See also ==
* [[RRS James Cook|RRS ''James Cook'']] – British equivalent
* [[RRS Charles Darwin|RRS ''Charles Darwin'']] – Predecessor to the ''James Cook''


==References==
==References==
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==External links==
==External links==
* [http://www.whoi.edu/marops/research_vessels/knorr/index.html WHOI Marine Operations – R/V ''Knorr'']
* [http://www.whoi.edu/marops/research_vessels/knorr/index.html WHOI Marine Operations – R/V ''Knorr'']
* [http://divediscover.whoi.edu/tools/knorr.html Dive and Discover - Oceanographic Tools]
* [http://divediscover.whoi.edu/tools/knorr.html Dive and Discover Oceanographic Tools]
* [http://www.whoi.edu/page.do?pid=8581 Where is ''Knorr'' Now?]
* [http://www.whoi.edu/page.do?pid=8581 Where is ''Knorr'' Now?]



Latest revision as of 20:45, 8 July 2023

The R/V Knorr
History
United States
LaunchedAugust 21, 1968
AcquiredApril 15, 1970 (delivered to Woods Hole Oceanographic Institution)
In service1970
Out of service2016
RenamedRio Tecolutla
HomeportWoods Hole, Massachusetts
Identification
FateTransferred to Mexican Navy, 14 March 2016
General characteristics [1]
TypeResearch vessel
Tonnage2,518 GT
Displacement2,685 long tons
Length279 ft (85 m)
Beam46 ft (14 m)
Draught16 ft 6 in (5.03 m)
Installed power
  • 3 × 1,100 kW (1,500 hp)
  • 1 × 560 kW (750 hp)
Propulsion
  • 2 × Lips electric azimuth thrusters (2 × 1,500 shp)
  • Lips retractable azimuth bow thruster (900 shp)
Speed11 knots (20 km/h; 13 mph)
Range12,000 nautical miles (22,000 km)
Endurance60 days
Complement
  • 22 crew
  • 32 scientists
  • 2 technicians
Sensors and
processing systems
Side-scan sonar

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.[2] 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.[3] 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.

Ship[edit]

R/V Knorr was named in honor of Ernest R. Knorr, a distinguished hydrographic engineer and cartographer who was appointed Chief Engineer Cartographer of the U.S. Navy Hydrographic office in 1860. Chief Engineer Knorr was one of the leaders of the Navy’s first systematic charting and surveying effort from 1860 to 1885. She was launched on August 21, 1968 at the Defoe Shipbuilding Company in Bay City, Michigan, Knorr was delivered to Woods Hole on April 15, 1970.[4]

The ship was built with Cycloidal propulsion that was replaced during a 1989-1991 midlife refit at which time propulsion was changed to two azimuthing stern thrusters and a retractable bow thruster as well as the hull being lengthened from 246 ft (75.0 m) to 279 ft (85.0 m). The overhaul between 1989 and 1991 added 34 feet (10 m) of length to her midsection.[5]

In 2003 a Dynamic Positioning System capable of holding the ship in position within one meter was installed providing capability for ocean drilling and other precise operations. During a 2005–2006 refit a 25,000 pounds (11,000 kg) long coring system capable of 150 ft (45.7 m), longest in the U.S. research fleet, deep cores was installed.[6]

The ship has anti-roll tanks and an ice-strengthened bow enabling her to work in all of the world’s oceans. She can take a crew of 22 and a scientific party of 34 to sea for as long as 60 days. Knorr was designed to accommodate a wide range of oceanographic tasks, with two instrument hangars and eight scientific work areas; a fully equipped machine shop; three oceanographic winches; and two cranes. Knorr is equipped with sophisticated navigation and satellite communication systems, as well as a dynamic positioning system that allows the ship to move in any direction and to maintain a fixed position in high winds and rough seas.[5]

In 2005–2006, the ship was refitted to support a new “long-coring” system that can extract 150-foot (46 m) plugs of ancient sediments from the sea floor. Weighing nearly 25,000 pounds, the new piston-coring system is the longest in the U.S. research fleet (twice as long as existing systems). Knorr and its long-corer will allow scientists to sample deep, ancient sediments that are rich with historical information about the ocean and climate.

Role in search for Thresher, Scorpion, and Titanic[edit]

In 1985, operated by the Woods Hole Oceanographic Institution, she was the ship that discovered the wreck of the RMS Titanic, using side scan sonar.[7]

The U.S. Navy was interested in finding out what happened to their missing nuclear powered attack submarines, the USS Scorpion and the USS Thresher, which sank in the 1960s.[8] Robert Ballard approached the Navy about using his new deep sea underwater robot craft, the Argo, to search for the Titanic.[9] The Navy agreed it would finance use of the RV Knorr for Ballard's Titanic search only if he first searched for and investigated the two sunken submarines,[9] and found out the state of their nuclear reactors after being submerged for such a long time,[9] and whether their radioactivity was impacting the environment.[9] When they searched for the two submarines, Ballard and his team discovered that they had imploded from the immense pressure at depth.[10] It littered thousands of pieces of debris all over the ocean floor.[10] Following the large trail of debris led them directly to both[10] and made it significantly easier for them to locate them than if they were to search for the hulls directly.[10] Using that lesson, they had Argo sweep back and forth across the ocean floor to find the Titanic's debris trail, following the trail to the wreckage of the ship itself.[7]

Decommissioning[edit]

It was announced on December 4, 2014, that the research vessel Knorr was being decommissioned after more than 40 years as the workhorse of the Woods Hole Oceanographic Institution research fleet.[11] The ship's last full research cruise, with Chief Science Officer Richard W. Murray, was completed in December 2014.[12][13] Knorr was transferred to the Mexican Navy in 2016, and was replaced by a new $74 million research vessel, the RV Neil Armstrong.[11][14]

Specifications[edit]

The dynamic positioning display on the R/V Knorr while it holds position, rotating about the end of her trawl-winch crane.
  • Built: 1969
  • Length: 279 feet (85 m)
  • Draft: 16.5 feet (5 m), with bow thruster lowered – 23 ft (7 m)
  • Displacement: 2,685 LT
  • Range: 12,000 NM
  • Laboratories: 2,756 sq. feet (256 sq. m)
  • Speed: 11.0 knots cruising
  • Endurance: 60 days
  • Fuel Capacity: 160,500 gallons
  • Mid-Life Overhaul: 1989–1991
  • Beam: 46 feet (14 m)
  • Gross Tons: 2,518 T
  • Complement:
    • Crew – 22
    • Scientists – 32
    • Technicians – 2
  • Propulsion: Two Lips diesel-electric azimuthing stern thrusters, 1500 SHP each
  • Bow Thruster: Lips retractable azimuthing 900 SHP
  • Ship Service Generators: 3 @ 1,110 KW 600 VAC, 1 @ 560 KW 600 VAC
  • Portable Van Space: At least six 20-ft. vans
  • Winches:
    • Trawl – 30,000' 9/16" wire
    • Hydro (2) – 30,000' 3-cond. EM or 1/4" wire
  • Heavy Equipment:
    • Cranes – two 60,000 lbs. capacity
    • Midships hydro boom
    • HIAB crane
  • Sewage System:
    • 3,600 gallons/day
    • 7,000 gal. holding capacity

Ownership: Title held by U.S. Navy; Operated under charter agreement with Office of Naval Research

Other Features: Two instrument hangars, fully equipped machine shop, dynamic-positioning system, four transducer wells, one rigid-hull inflatable rescue/work boat.[15]

See also[edit]

References[edit]

  1. ^ RV Knorr specifications. Woods Hole Oceanographic Institution. Retrieved 2011-11-19.
  2. ^ "UNOLS Vessels". Archived from the original on 2011-09-29. Retrieved 2011-11-02. | UNOLS Research Vessels
  3. ^ Carter, Andrea F. (March 14, 2016). "Renamed Rio Tecolutla, R/V Knorr Joins The Mexican Navy". The Falmouth Enterprise. Retrieved January 6, 2017.
  4. ^ Cullen, Vickey (2005). Down to the Sea for Science: 75 Years of Ocean Research, Education, and Exploration at the Woods Hole Oceanographic Institution. Woods Hole, Mass.: Woods Hole Oceanographic Institution. p. 194. ISBN 9781880224090. LCCN 2008530726. Retrieved 5 August 2019.
  5. ^ a b "Woods Hole Oceanographic Institution". Woods Hole Oceanographic Institution. Archived from the original on 9 June 2011. Retrieved 1 April 2019.
  6. ^ U.S. Navy (November 2014). "Interesting Facts about the R/V Knorr" (PDF). UNOLS. Retrieved 5 August 2019.
  7. ^ a b "Discovery Of Titanic".
  8. ^ Levenson, Eric (14 December 2018). "Inside the secret US military mission that located the Titanic". Retrieved 7 January 2018.
  9. ^ a b c d Smith, Lewis (2008-05-24). "Titanic search was cover for secret Cold War subs mission". The Times. London. Retrieved 2008-05-26.
  10. ^ a b c d "栄養豊富な青汁を離乳食に役立てよう". www.cdnn.info.
  11. ^ a b "WHOI Gets RV Neil Armstrong". Subsea World News. 25 September 2015. Retrieved 1 April 2019.
  12. ^ "Headed for Home Port". Sea Change: notes from Researcher Ridge. 2 December 2014.
  13. ^ Driscoll, Sean F. (December 4, 2014). "After a million miles for science, the Knorr comes home". Cape Cod Times.
  14. ^ Driscoll, Sean F. (16 February 2016). "WHOI research vessel Knorr to find new home in Mexico". capecodtimes.com. Retrieved 1 April 2019.
  15. ^ "Specifications". Woods Hole Oceanographic Institution. Retrieved 1 April 2019.

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