Celestial Navigation for Yacht smen 1st Edtition 2017 Mary Blewitt Product Code: khnac0060

The bible for many generations of ocean navigators, and a bestseller for over 50 years, the 12th edition of this book is written in a concise and clear style to explain a particularly difficult skill. The book aims to make a tricky subject easy to understand, with the worked examples requiring only straightforward addition and subtraction. PB 72pp.