NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Lightning at sea
From: Lisa Fiene
Date: 2004 Oct 16, 08:26 +1000
From: Lisa Fiene
Date: 2004 Oct 16, 08:26 +1000
Phil wrote: > Yes, bad idea. Lightning will follow the path of least resistance > and the chain sounds like a high resistance path. Some energy will > leak this way but most "may" find another path to ground. I'd have to challenge you on that comment Phil. I think George's idea of a chain has a great precedent - Captain James Cook on his 1768-1770 voyage of exploration on Endeavour! "The onset of winter drove Endeavour off course, and on April 19, the ship arrived off New Holland (Australia). Nine days later, Endeavour entered Botany Bay (just south of modern Sydney), which they named "for the great quantity of New Plants & ca" collected there over the next week. Endeavour sailed again on May 6, skirting the coast of Australia until June 10, when the ship was holed on the Great Barrier Reef near Cape Tribulation (15?47S, 145?34E). "This was," wrote Cook, "an alarming and I may say terrible Circumstance and threatend immidiate destruction to us as soon as the Ship was afloat." It took two days to free the ship, and the leak was only stopped by fothering, that is, drawing a sail impregnated with oakum under the ship's bottom to stop the leak. Nine days later, Cook landed at what is now Cooktown. Repairs to the ship lasted six weeks, during which Lieutenant Gore shot and stuffed a kangaroo. After claiming New Holland for the British Crown, Cook sailed Endeavour through the Torres Strait, stopping at Savu Island (west of Timor), and then sailing on to the Dutch entrep?t at Batavia (now Jakarta). There, thanks to an "electrical chain" Cook ordered set up for the purpose, Endeavour survived a bolt of lightning that did serious damage to a Dutch East Indiaman". I personally have always thought James Cook was an exceptional navigator and seaman! Lisa