Distress 'Flares' Go Electric - Practical Sailor
By A Mystery Man Writer
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What were flares used for on old ships travelling overseas? - Quora
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Electronic Visual Distress Signals - Soundings Online
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Best safety flares: 9 options for raising a distress signal at sea
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Rocket Science: Sailboat Distress Signals
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SAFETY AT SEA - Important LIFE SAVING Marine Equipment
Question - Flares SailNet Community
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Classic Sailor No16 June–July 2017 by Dan Houston - Issuu
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The Boat Nerd: Using Electronic Visual Distress Signals in Place of Pyrotechnic Distress Signals - Sailing in Canada
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Best safety flares: 9 options for raising a distress signal at sea