Tag Archives: Why Celestial

Why Celestial Navigation

FOR ELECTRONIC BACK-UP GPS is wonderful. World-wide coverage and reasonably priced receivers (both installed and handheld) contribute to maritime safety through accurate positioning of vessels. Yet, some back-up is needed. Instances of electronic failure, total electric failure, lightning strike, and flooding are often documented. Even battery powered handhelds can be rendered inoperable in these ways. […]