Navigation Lights: Rules and Recognition
The lights are a language with a fixed vocabulary. Learn the arcs, the ranges and the patterns, and a distant vessel tells you what she is and where she is going.
Collision Avoidance
Bridge Watchkeeping Duties: Keeping a Safe Navigational Watch
The officer of the watch carries sole responsibility for a ship’s safety while others sleep. Here are the duties, rules, and judgment calls that define a safe bridge watch.
Radar Basics
A working guide to marine radar: how it builds its picture, how to read motion and risk of collision from it, how to tune it, and where it goes blind.
COLREGs: The Rules of the Road at Sea
No lanes, no traffic lights, just one ruleset that decides who gives way and who holds course. A working guide to the COLREGs and the judgment behind them.