August 26, 2007 09:32
I find myself more often than not verifying a GPS derived chartplotter position with at least 2 other visual or aural marks taken off a paper chart. I like the image of your using gulls cries' echoing off cliffs, no cliffs in my neck of the woods, tho. I do picture an American football field (a convenient standard of 100 yds) when judging distance.
A paperless ship is a little scary, especially when one realizes that there are nuclear weapons aboard.....
Yes, having 1 or more instruments' metrics being different really points out the issue, doesn't it? I think, tho, that as more and more commercial shipping outfits adopt ECDIS completely, the various authorities will eventually arrive at a measurement standard and "Cables", etc. will disappear.
A paperless ship is a little scary, especially when one realizes that there are nuclear weapons aboard.....
Yes, having 1 or more instruments' metrics being different really points out the issue, doesn't it? I think, tho, that as more and more commercial shipping outfits adopt ECDIS completely, the various authorities will eventually arrive at a measurement standard and "Cables", etc. will disappear.