Related by context. Frequent words. (Click for all words.) 52 German battleship Bismarck 51 spotter planes 51 sonars 50 Emeraude 50 Spanish galleons 50 pingers 48 sunken wreckage 48 Nivose 47 ship Ile 47 oil tanker Limburg 47 Sonar 47 oceanographic survey 46 Capt. Christophe Prazuck 46 Suspected Somali pirates 45 reconnaissance drones 45 sonar 45 Navy P 3C 45 Capsized 45 navy commandos 44 navy frigates 44 commandos boarded 44 toadfish 44 naval frigate 44 underwater microphones 44 Sonars 44 Le Ponant 44 Humpback whale 44 Fishing Vessel 43 NAIROBI Kenya Somali pirates 43 doublehanded 43 recorders 43 pirate skiff 43 crewman aboard 43 vehicles UAVs 43 mine sweepers 43 Arctic terns 43 unmanned underwater 43 boats 43 HMS Vanguard 43 Transall 43 missile frigate 43 USS Ramage 43 corsairs 43 Mercury MerCruiser sterndrives 43 minesweeping 43 Helldiver 43 multibeam 42 Arcachon 42 Fishing Boat 42 Rivet Joint 42 mako sharks 42 MSC Opera 42 pelagics 42 navy divers 42 passive sonar 42 Somali pirates seize 42 jeeps mounted 42 trawler sank 42 escorting merchant 42 navy destroyer 42 USS Halyburton 42 Prazuck 41 REMUS 41 coastguard vessels 41 Air Moorea 41 Frogmen 41 inboard engines 41 USS Bunker Hill 41 regional turboprops 41 driftnets 41 DeHavilland DHC 3T 41 Johnstone Strait 41 Sea Shepherd activists 41 purse seiners 41 chartplotter 41 Patrol Vessel 41 shipwreck hunter 41 frigate 41 underwater sonar 41 toothed whales 41 Twin Otter plane 41 frogmen 41 Jacques Perrin 41 Cargo Ship 41 bowmen 41 Ferry sinks 41 upturned hull 41 Douarnenez 41 dories 40 brigantine 40 Undersea robots 40 antisubmarine 40 Fin whales 40 Exocet 40 Remora 40 Adm. Horatio Nelson 40 inflatable dinghies 40 Antarctic seas 40 flagged freighter 40 naval destroyers 40 turbo prop plane