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Celestial Navigation – On-board training with superyacht ‘Kamalaya’
Over Christmas & New Year 2014/2015 Alan Denham (RYA Yachtmaster Ocean Instructor) was invited aboard the 55 metre (180’) Amels Superyacht. The vessel was in transit across the North Atlantic from Lanzarote to St Marteens in the Caribbean. The plan was to help the Captain to improve his Astro-navigation skills and to train 3 of the deck officers/senior crew so they would be well on their way to achieve their RYA Yachtmaster Ocean Certificate.
m/y Kamalaya
Read more...Windlass Maintenance
Your windlass takes a lot of hardship over the course of the sailing season. Though designed to take a certain amount of punishment from the exposure to wind and waves, if you ignore the basic maintenance, it will eventually seize.
Maintenance is very simple, and will only take half an hour of your time.
This is my Lofrans Tigres electric windlass which I have had for 5 years now and
served me very well. Though the pictures and instructions serve for this
windlass, they will also be relevant to all types of anchor windlass.
Astro Navigation Pro-formas
These pro-formas are handy at leading you through the process of sight reduction.
They ensure you follow the correct process, and take you through the calculations.
They are designed to use with the standard;
Nautical Almanac and
Sight Reduction Tables for Air Navigation (Vols 2&3).
Sun Sight Pro-Forma
Sun Sight explanation sheet (explanation of required information)
Sun Sight Overview (overview of the overall process of sun sight reduction)
Meridian Passage Pro-Forma
Planet Sight Pro-Forma
Moon sight Pro-Forma
Single Star Sight Pro-Forma
Polaris Sight Pro-forma
The multiple star sight pro-forma is for the '7 Selected Stars method', i.e. using the
Sight Reduction Air Tables Volume 1
Plotting Sheets
Plotting Sheet 1 (sheet using fixed longitude)
Plotting Sheet 2 (sheet using fixed latitude)