Pencil, Paper and Stars 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024

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Buchan, Alastair 作者

译者

2008-5 出版日期

187 页数

217.00元价格

丛书系列

9780470516522 图书编码

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发表于2024-11-09

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Pencil, Paper and Stars 在线电子书 epub 下载 mobi 下载 pdf 下载 txt 下载 2024

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Electronic navigation systems are extremely reliable but when they do fail onboard repair at sea is rarely possible. Also, their operation depends on a continuous supply of electricity. Should this fail they will stop and unexpectedly lacking the means of position finding, chart plotting and route planning how can the modern navigator continue their passage in a safe and seamanlike manner? This user friendly book gives simple, practical, get-you-home navigation techniques, which can be used if electronic navigation systems aboard a yacht fail. Shows you how to: 1. Understand the principles behind the techniques you are using to gain confidence in your answers. To help - these techniques will be placed in their historical context. 2. See the techniques as simple and easy to use. They require no complicated mathematics or high level craft skills or any form of special skill. 3. Employ every technique using materials and equipment likely to be found on every boat. 4. Put these techniques into practice - every procedure contributes to making a safe and seamanlike passage. You can also practice beforehand to gain confidence in using them.

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