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Submarine navigation underwater requires special skills and technologies not needed by surface ships. The challenges of underwater navigation have become more important as submarines spend more time underwater, travelling greater distances and at higher speed. Military submarines travel underwater in an environment of total darkness with neither windows nor lights. Operating in stealth mode, they cannot use their active sonar systems to ping ahead for underwater hazards such as undersea mountains, drilling rigs or other submarines. Surfacing to obtain navigational fixes is precluded by pervasive anti-submarine warfare detection systems such as radar and satellite surveillance. Antenna masts and antenna-equipped periscopes can be raised to obtain navigational signals but in areas of heavy s

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  • Navigation sous-marine (fr)
  • Submarine navigation (en)
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  • La navigation sous-marine est le déplacement des sous-marins dans des conditions d'immersion qui exigent des compétences et technologies dont les navires de surface n'ont pas besoin. Les défis de la navigation sous-marine croissent avec l'augmentation des temps d'immersion, les sous-marins parcourant de plus grandes distances et à plus grande vitesse. (fr)
  • Submarine navigation underwater requires special skills and technologies not needed by surface ships. The challenges of underwater navigation have become more important as submarines spend more time underwater, travelling greater distances and at higher speed. Military submarines travel underwater in an environment of total darkness with neither windows nor lights. Operating in stealth mode, they cannot use their active sonar systems to ping ahead for underwater hazards such as undersea mountains, drilling rigs or other submarines. Surfacing to obtain navigational fixes is precluded by pervasive anti-submarine warfare detection systems such as radar and satellite surveillance. Antenna masts and antenna-equipped periscopes can be raised to obtain navigational signals but in areas of heavy s (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Annapolis_masts.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/USS_Chicago_(SSN_721)_at_periscope_depth_off_Malaysia.jpg
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  • La navigation sous-marine est le déplacement des sous-marins dans des conditions d'immersion qui exigent des compétences et technologies dont les navires de surface n'ont pas besoin. Les défis de la navigation sous-marine croissent avec l'augmentation des temps d'immersion, les sous-marins parcourant de plus grandes distances et à plus grande vitesse. (fr)
  • Submarine navigation underwater requires special skills and technologies not needed by surface ships. The challenges of underwater navigation have become more important as submarines spend more time underwater, travelling greater distances and at higher speed. Military submarines travel underwater in an environment of total darkness with neither windows nor lights. Operating in stealth mode, they cannot use their active sonar systems to ping ahead for underwater hazards such as undersea mountains, drilling rigs or other submarines. Surfacing to obtain navigational fixes is precluded by pervasive anti-submarine warfare detection systems such as radar and satellite surveillance. Antenna masts and antenna-equipped periscopes can be raised to obtain navigational signals but in areas of heavy surveillance, only for a few seconds or minutes; current radar technology can detect even a slender periscope while submarine shadows may be plainly visible from the air. (en)
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