Navigation Archives

Tag Archive for: Navigation

How to calculate rate and direction aka drift and set

March 3, 2015/by Grant Headifen

In the USA, the terms “set and drift” are often used when it comes to specifying current flow. It is found that this is confusing to many students and in the rest of the world the terms rate and direction are used. At NauticEd, we adopt the term “rate and direction” in favor of the […]

How to solve a tide height using the rule of twelves

February 17, 2015/by Grant Headifen

Here is a tide curve plot for any tides that follow the rule of twelves. None do exactly, but it can provide a rough approximation.

Can you solve this tidal problem?

January 15, 2015/by Grant Headifen

In this sailing exercise, you’ll be given a tidal problem. See if you have what it takes to solve it, or if you need a little more practice.

Tides and the Rule of Twelves

September 27, 2014/by Grant Headifen

Tides are often intimidating to sailors, but understanding tides can be made simple with the Rule of Twelves.

Longitude Mystery

September 18, 2014/by Grant Headifen

The Longitude Mystery- zero degree line of longitude was selected and placed in Greenwich in 1751 and then in 1851 it was moved a few feet.

How to use a Breton (Portland) Plotter

July 31, 2014/by Grant Headifen

Today, we’re discussing using a Breton Plotter, aka Portland Plotter, aka rotating protractor, to determine a course.

International Navigation Rules of Preventing Collision at Sea

July 23, 2014/by Grant Headifen

Stand-On and Give-Way: You just might have it wrong… (Jump directly to the FREE updated International Rules of Preventing Collision at Sea course it’s quick, easy and entertaining) Two sail boats collide. One had wind over their port side and one had wind over their starboard side. The starboard tack boat saw the port tack boat […]

Navigation: Electronic or Paper charts?

April 20, 2013/by Grant Headifen

So here is a post I did on a recent linkedin forum for sailing instructors. >>>>>> Check this out – my 13 year old nephew recently refused to think about a home work problem and demanded that he look the answer up on the internet. I agree with using tools at hand but understanding the […]

How to do a Running Fix

April 19, 2013/by Grant Headifen

Running Fix Explained This week we uploaded our updated Coastal Navigation course to Apple for publishing on iTunes as an interactive eLearning App. We’re very excited about this update because of the HTML 5 animations we’ve used to explain some of the concepts. Specifically in regards to this post, no where on the web have we […]

Autopilot sailing to a waypoint

December 10, 2012/by Grant Headifen

Last weekend the NauticEd crew did a boat delivery for the local Moorings Yacht Charter company in New Zealand. We sailed from Auckland up to the Bay of Islands to deliver the yacht back to its charter base. The yacht was a Beneteau 37 2012 model and was appointed well and in great condition. The […]