SeaNav: Reviewed By A Professional Navigator
On a recent sailing trip, I wanted to try using my iPad as a chart plotter to complement the paper charts I usually use. Rather…
C-Map App: Reviewed By A Professional Navigator
On a recent sailing trip, I decided that I would like to test out how well mobile technology performs as an aid to navigation. Specifically,…
Memory Map: Reviewed By A Professional Navigator
In recent years, mobile technology has developed so much that it is now possible to use a mobile phone or a tablet to assist with…
Plastic Sextants: Which One Is Best?
When it comes to plastic sextants, the only manufacturer making reliable instruments is Davis Instruments. They produce the Mk3 “Lifeboat” sextant, the Mk15 “Standard” sextant,…
The Ultimate Guide To Buying A Sextant: Which Is Best?
Buying a sextant can be a bewildering process. Searching the main models shows they range in price from <$50 to $2,000+. Including the second-hand market…
What Is A Sextant? Explained By A Ship’s Officer
The sextant is a navigational instrument used to measure angles. In celestial navigation, it measures the angle between the horizon and a celestial body (the…
How Sextants Work: An Illustrated Guide
When learning how to use the sextant, one of the most important first steps is to understand how it works. I have spent the last…
Which Sextant Is Best For A Yacht?
On a yacht, a sextant can act as a great backup in case you lose your GPS. If you have learned how to use one,…
Which Sextant Is Best For A Beginner?
If you have recently started learning celestial navigation, you are probably now considering buying your first sextant. An online search will quickly tell you that…
Davis Mk15 Sextant Review
I have recently purchased a Davis Mk15 Sextant because I was intrigued by its low price point and I wanted to compare it to the…
What’s The Difference Between A Plastic And Metal Sextant?
When I started searching for a sextant to buy, I was presented with two options. A plastic sextant, or a metal sextant. The metal ones…
What Are AIS EPIRBs?
I have already discussed regular EPIRBs in-depth on this website. In the article “How Do EPRIBs Work?”, we looked in detail at how they work,…