hydroacoustic radar

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Alfa class submarine — The Soviet Union/Russian Navy Project 705 ( Лира / Lyra ) was a submarine class of hunter/killer nuclear powered vessels (abbreviated PLA: Podvodnaya lodka atomnaya , nuclear hunter/killer submarine). The class is also known by the NATO reporting … Wikipedia
November class submarine — Class overview Name: project 627 / 627A / 645 Builders: shipyard No. 402 in … Wikipedia
Sonar — This article is about underwater sound propagation. For atmospheric sounding, see SODAR. For other uses, see Sonar (disambiguation) … Wikipedia
Dynamic positioning — Offshore Support Vessel Toisa Perseus with, in the background, the fifth generation deepwater drillship Discoverer Enterprise, over the Thunder Horse Oil Field. Both are equipped with DP systems. Dynamic positioning (DP) is a computer controlled… … Wikipedia
Kongsberg Maritime — Infobox Company company name = Kongsberg Maritime company company type = Public foundation = 1814 location = Kongsberg, Norway key people = Torfinn Kildal (CEO) area served = Global industry = Marine systems products = revenue = profit NOK 4,850… … Wikipedia

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