NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Lightning strike (was Re: CELNAV .pdf file)
From: Frank Reed CT
Date: 2003 Dec 29, 17:12 EST
From: Frank Reed CT
Date: 2003 Dec 29, 17:12 EST
Fred Hebard wrote:
"Electromagnetic shock can still knock out most electronic devices, as I
understand it. Celestial is a good backup."
Maybe someone on this list will know the answer to a question that has come up occasionally. Is there a "lightning-proof safe"? If you're sailing across the Atlantic, and your boat is struck by lightning, you may lose all your electronics. Can you keep a spare handheld GPS in an insulated metal case? Do they market such things? More generally, what's a safer navigation backup: a sextant, almanac, and set of sight reduction tables, or two or three (appropriately secured) spare GPS receivers?
Frank E. Reed
[X] Mystic, Connecticut
[ ] Chicago, Illinois
"Electromagnetic shock can still knock out most electronic devices, as I
understand it. Celestial is a good backup."
Maybe someone on this list will know the answer to a question that has come up occasionally. Is there a "lightning-proof safe"? If you're sailing across the Atlantic, and your boat is struck by lightning, you may lose all your electronics. Can you keep a spare handheld GPS in an insulated metal case? Do they market such things? More generally, what's a safer navigation backup: a sextant, almanac, and set of sight reduction tables, or two or three (appropriately secured) spare GPS receivers?
Frank E. Reed
[X] Mystic, Connecticut
[ ] Chicago, Illinois
