{"product_id":"books-ocean-navigator-by-kenneth-wilkes","title":"Ocean Navigator","description":"An on-board reference for ocean passagemakers containing everything the ocean navigator needs to work out: sight reductions for the sun, the moon, the four navigable planets, the 57 selected stars and Polaris. The book covers the RYA Ocean Yachtmaster syllabus: the use of the sextant; taking sights in heavy weather; planning an ocean voyage; hyperbolic and satellite navigation; and the use of navigational calculators and graded exercises with model answers.","brand":"World of Books ","offers":[{"title":"Default Title","offer_id":53773905264913,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9780713653045.jpg?v=1783981146","url":"https:\/\/www.worldofbooks.com\/en-gb\/products\/books-ocean-navigator-by-kenneth-wilkes","provider":"World of Books ","version":"1.0","type":"link"}