Weems & Plath Marine Navigation ROADrule Marine Navigation Aids, Rules of the Road and Light Characteristics (USATONS, U.S. Waters)
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							Identifies all USCG Colregs
							
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							Shows the actual view of vessels for port, starboard, bow and stern lights
							
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							Identifies 60 marine navigation light configurations
							
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							Displays 15 day shapes Provides a magnifying lens
							
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