This book is essential for anyone studying celestial navigation.
Since J W Norie published the first edition of this famous set of mathematical tables in 1803, the book has become – and remained - a bestseller. Despite developments in electronic navigation it remains an essential requirement for anyone learning and practising astro-navigation.
This book not only contains the rules but also detailed explanations developed in a logical progression to make learning easy. Contains numerous situational examples with questions and answers to assist in the learning process.
An expert guide to the collision regulations for all mariners
A great little book with no fuss and no thrills, It has COLREGS and nothing else
Ideal for Merchant Navy Officers from Cadet rank to Master Mariner, the fifth edition of this highly respected book is in full colour, and has been updated to include more information on topics as diverse as electronic navigation and AIS technology whilst still including essential information on subjects such as safety at sea, rescue operations, watchkeeping duties and pollution control. It covers international standards and works well on courses throughout the world.
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We all rely on charts to navigate at sea – but are we missing essential information? A mass of data is included on each chart and deciphering the many symbols and abbreviations can be complicated. The accuracy of some charted depths can be trusted entirely while others should be treated with caution. This book will tell you where to find and how to understand this vital knowledge.
- Precision compasses with obtuse-angled safety needle
- Maximum circle Ø approx. 300 mm
- Length 124.2 mm
- Compass with lead part and lead box in case with hinged lid
The fx-83GTX replaces the Casio Fx-GT scientific calculators which takes Ireland's Number One Scientific Calculator a step further, by offering additional features such as clearer display, clearer menus, faster processor and 14 additional functions. Allowed in every Irish exam where a calculator can be used. The large Natural Textbook Display (Natural-V.P.A.M.) shows mathematical expressions like roots and fractions as they appear in your textbooks which increases comprehension because results are easier to understand.