Nautile

{{short description|Crewed submersible owned by Ifremer}}

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| Ship image = File:Nautile (sous-marin de poche) - La Vilette - Paris - 2003.JPG

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| Ship flag = {{FRA}}

| Ship name = Nautile

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| Ship commissioned = 1984

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| Ship in service = 1984

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| Ship type = Deep-submergence vehicle

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| Ship length = {{convert|8.0|m|ft|abbr=on}}

| Ship beam = {{convert|2.7|m|ft|abbr=on}}

| Ship draft = {{convert|3.81|m|ft|abbr=on}}

| Ship power = Electric motor

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| Ship speed = 1.5kn

| Ship range = 7.5km

| Ship endurance = 120h

| Ship test depth = {{convert|6000|m|ft|abbr=on}}

| Ship complement = 3

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Nautile is a crewed submersible owned by Ifremer, the French Research Institute for Exploitation of the Sea. Commissioned in 1984, the submersible can be operated at depths of up to {{convert|6|km|mi|abbr=on}}.{{Cite web |title=Nautile |url=https://www.flotteoceanographique.fr/en/Facilities/Vessels-Deep-water-submersible-vehicles-and-Mobile-equipments/Deep-water-submersible-vehicles/Nautile |access-date=2023-11-17 |website=French oceanographic fleet |language=en-GB |archive-date=2023-12-23 |archive-url=https://web.archive.org/web/20231223184143/https://www.flotteoceanographique.fr/en/Facilities/Vessels-Deep-water-submersible-vehicles-and-Mobile-equipments/Deep-water-submersible-vehicles/Nautile |url-status=live }}

Features

Nautile is capable of housing three people. It has a length of 8 m, still imaging cameras, two colour video cameras, and a number of LED floodlights. It is fitted with two robotic arms to allow remote manipulation. This makes it easier to inspect, image, and gather materials from areas otherwise unaccesible to the vehicle.{{Cite web |title=NOVA Online {{!}} Into the Abyss {{!}} Deep-Sea Machines (2) |url=https://www.pbs.org/wgbh/nova/abyss/frontier/deepsea2.html |access-date=2023-11-17 |website=www.pbs.org |archive-date=2023-06-01 |archive-url=https://web.archive.org/web/20230601101048/https://www.pbs.org/wgbh/nova/abyss/frontier/deepsea2.html |url-status=live }} Nautile can stay underwater for up to eight hours at a time. Six of those hours can include work on the sea floor.

Two ships can act as mothership to Nautile: Pourquoi Pas? and Atalante. In its early days, Nautile was launched from RV Nadir.

Uses

Without the need for a physical link to support its operation, the submersible can be readily deployed in a variety of environments. It's most commonly used to survey specific areas, collect samples, and assist in the investigation and recovery of wrecks.

The vessel has been used to examine the wrecks of the RMS Titanic and MV Prestige, and to search for the black boxes from Air France Flight 447{{Cite web |url=https://www.bloomberg.com/apps/news?pid=20601087&sid=aWcdYoGt97tg |title=Air France Black Box Seeking Sub Is Titanic Veteran |access-date=2024-01-30 |archive-date=2024-01-30 |archive-url=https://web.archive.org/web/20240130022402/https://www.bloomberg.com/politics?pid=20601087&sid=aWcdYoGt97tg |url-status=live }}

During the inspection of the Titanic, it used a small manipulator arm known as "ROBIN" to retrieve numerous artifacts.{{Cite web |title=30 years ago, ECA got involved in the inspection of the TITANIC wreck |url=https://www.ecagroup.com/en/30-years-ago-eca-got-involved-inspection-titanic-wreck |access-date=2023-11-17 |website=ECA Group |language=en |archive-date=2023-11-17 |archive-url=https://web.archive.org/web/20231117052217/https://www.ecagroup.com/en/30-years-ago-eca-got-involved-inspection-titanic-wreck |url-status=live }} Equipped with CCD type cameras, ROBIN is only 60 x 50 x 50 cm large and weighs 130 kg. In August 1987, a 54-days expedition collected new images, videos, and objects from the wreck.

See also

References

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