NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: GPS jamming concerns
From: David C
Date: 2016 Aug 9, 19:35 -0700
From: David C
Date: 2016 Aug 9, 19:35 -0700
Even with paper charts it is still possible in 2011 to completely wreck a 37,000 gross ton container ship. Go to
http://www.taic.org.nz/ReportsandSafetyRecs/MarineReports/tabid/87/language/en-US/Default.aspx
and scroll down to
11-204 Marine Inquiry 11-204: Container ship MV Rena grounding on Astrolabe Reef, 5 October 2011
Two relevant quotes are:
.......and the master’s standing orders stated that “in coastal waters [the watchkeeper]
should take fixes on a paper chart at frequent intervals of 10-15 minutes using more than one
method”.
should take fixes on a paper chart at frequent intervals of 10-15 minutes using more than one
method”.
"The largest-scale chart should be used wherever possible. A larger-scale chart was available
(Chart NZ5413: Approaches to Tauranga) for the area covering the approach to Tauranga.
This chart was not on board the Rena and it was not listed on the passage plan form."
(Chart NZ5413: Approaches to Tauranga) for the area covering the approach to Tauranga.
This chart was not on board the Rena and it was not listed on the passage plan form."
