What Types Of Lifeboats Are Used On Ships?

Since the Titanic tragedy, it has been mandatory for ships to carry enough lifeboats for everyone aboard. Back then, you could have a few open...

Sextant Errors And Corrections: With Downloadable PDF

A properly adjusted sextant is an incredibly precise scientific instrument. Unfortunately, it is subject to a large number of potential errors. All these errors...

How Do EPIRBs Work?

EPIRBs are a small part of a much larger system which includes beacons, satellites, mission control centres, aircraft and vessels. Together, they have saved...

What Is An EPIRB?

You may have seen them on boats, in aircraft, or even in hiking shops. Maybe you have purchased one yourself, or are considering buying...

What Is A Sextant Used For?

A sextant is a highly accurate scientific instrument, used for measuring the angle between two objects. Its best-known use is in celestial navigation when...

What Happens If You Fall Off A Cruise Ship?

It is a highly unlikely scenario, but you would be surprised how many times I used to get asked “what happens if I fall...

What Is The Difference Between An EPIRB And A SART?

EPIRBs and SARTs are both used to indicate your position in an emergency when you need rescuing at sea. The main difference between them...

Do You Need AIS On Your Boat?

When you are installing navigational equipment to your boat, you have almost certainly asked yourself whether you really need everything on the market. AIS,...

NMEA 0183 vs NMEA 2000

Electonic engineers are very familiar with the details and differences between NMEA 0183 and NMEA 2000, but I am a navigator, not an electronics...

What Are The Limitations Of AIS?

AIS is a useful tool to assist watchkeepers in carrying out their duties. It does improve the safety of navigation for everyone, but like...

Casual Navigation is an informal resource for learning maritime navigation. On this site, you will find information, tips, and guidance that would normally be taught in a professional setting.