RYA Yachtmaster Ocean Online Theory Course 

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RYA Yachtmaster Ocean Online Theory Course 
  • FREE course free demo HERE

  • Introduction & Basic Astro Navigation Theory

  • Using a Sextant

  • Meridian Passage

  • Sun Sights

  • Plotting Your Position

  • Planet Sights

  • Moon Sights

  • Star Sights

  • Latitude by Polaris (The Pole Star)

  • Compass Check by Sun's Amplitude

  • Ocean Weather & Tropical Storms

  • Passage Planning

  • Satellite, HF communications and obtaining weather data

Course Content?

On the course we will cover. 

The earth and the celestial sphere - the basics

The sextant - how to set up and use your sextant

Measurement of time - how time is measured 

Noon Latitude Positions - how it all started 

Sun, star and other sights - how we did it when we have accurate time

Compass checking - using the sun

Great circle sailing - the best way to get there 

Meteorology - choosing the best time and weather for your passage 

Passage planning - putting your ocean passage together 

Communications - keeping in touch and getting weather information

 At the end of the course, you'll be set an exam and, if you pass,  we'll issue you with an RYA/MCA Yachtmaster Ocean course completion certificate.

Calm Sea
The Ultimate backup

The ultimate backup is a sextant, accurate timepiece, nautical almanac and a set of, what are known as "sight reduction tables".


However whilst the process of translating a sextant sight into a position line is straightforward it is quite challenging to get to grips with. 


Unlike classroom training, where time is limited and students progress at different rates, online learning allows you to participate in lessons as many times as you wish. rewind and replay.


You can also repeat exercises and, if you struggle to get to the correct answer, we'll guide you through step-by-step.