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ColRegs: Rules of the Road for all Seagoing Sail and Power Vessels
Education and Navigation
App
Quick learning & revision tool, over 100 graphics, for all seafarers worldwide. "... a brilliant...
ColRegs: Nav Lights & Shapes for Boating and Sailing
Education and Navigation
App
Quick learning & revision tool, over 100 graphics, for all seafarers - this sailing, boating &...