Paper charts.

> 10 years ago
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Toph
Toph
WA
1881 posts
WA, 1881 posts
5 Apr 2015 3:01am
"Looking up" may be a personal desire, and agreed is a lost art. We only feel nastolgic about it at present because a) it is a technique not too long used and b) sailors more then any one else I know are drowned in tradition and can't let go (not always a bad thing)
Somebody mentioned above a sextant is useless for open passages but good for costal cruising. I reckon most people can get a visual positive fix within a few hours to half a day at the most if cruising coastal these days, making a sextant next to useless these days. People need to start embracining the new world. Sure, back it up on paper, but if you can't DR navigate to the nearest safe port after a total loss of modern nav equipment, you ain't a snow balls chance in hell going to navigate by a sextant.
Ramona
Ramona
NSW
7754 posts
NSW, 7754 posts
5 Apr 2015 9:17am
This bloke was not really lost though. Apparently asleep when he found his boat full of water. He really was just unprepared. Normal reaction would be to don a likejacket, clip on your floating handheld VHF and your floating Garmin gps. Grab your Epirb and attach the cord. Then grab your tote bag prepared earlier and head for the cockpit to asses the situation.

The major problem these days is making sure you have replacement batteries for the handheld gps.
MorningBird
MorningBird
NSW
2707 posts
NSW, 2707 posts
5 Apr 2015 9:25am
Excellent points SirG. My point is that you need to practice these skills regularly for them to be useful. Accuracy with a sextant is difficult to achieve. It is a motor skill like flying a plane and degrades without practice. Few of us do go to the effort of practicing sextant use. The chart plotter and GPS positions are just too convenient.
Ramona
Ramona
NSW
7754 posts
NSW, 7754 posts
5 Apr 2015 9:41am
Good thread here this morning on astro nav. I would recommend Mary Blewitt's book. Sextants are cheap on eBay, I have seen Ebbco's go for $20.


forums.ybw.com/index.php?threads/astronavigation-what-do-i-need-to-take-besides-a-sextant.426552/
Ramona
Ramona
NSW
7754 posts
NSW, 7754 posts
5 Apr 2015 9:53am
Just to hijack the thread slightly! Link from PBO forums along the lines of "would not have happened if he had carried paper charts"!

It seems there is some skepticism about this blokes story!



edition.cnn.com/2015/04/02/us/rescued-after-66-days-at-sea/


He does look to be in too good a nick.
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