Emergency Navigation Card pdf epub mobi txt 电子书下载 2024

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Burch, David

Midpoint Trade Books Inc

2004-10

$ 14.63

Pap

9780939837588

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发表于2024-12-29

Emergency Navigation Card epub 下载 mobi 下载 pdf 下载 txt 电子书下载 2024

Emergency Navigation Card pdf epub mobi txt 电子书下载 2024

图书描述

A wealth of information is provided: an emergency almanac for the sun, and declination tables for the stars; several methods of sight reduction, including one that requires only the card itself; and angular markings on the perimeter of the card that allows approximate altitude measurements of celestial bodies. With this card and a watch you can find your way to any major port in the world. Other information includes how to steer by the stars and finding your boat's speed. A handy card to have in case your GPS, sextant, or almanac becomes lost. The card is loose-leaf sized. You can punch holes in it for insertion in a binder. It is plastic laminated for weatherproofing and durability.

Emergency Navigation Card 下载 mobi epub pdf txt 电子书