NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Avoiding collision.
From: George Huxtable
Date: 2003 Oct 7, 16:14 +0100
From: George Huxtable
Date: 2003 Oct 7, 16:14 +0100
Doug Royer said recently, in another thread- >I had the opportunity to use both of these types of Russian(I should say >Soviet)sextants.One was owned by a Polish ABS I served with and he >consistantly got outstanding LOPs useing his.He won an $1800.00 pool on one >transit when his final position was less than 0.2nm from the ships GPS pos. >when the evolution was stopped by the master. My, that is encouraging! To think that the art of celestial nav is still sufficiently alive-and-well on the brige of American merchant vessels, to the extent of that much hard cash riding on the accuracy of observations and predictions. Somehow, it brings to mind another topic which doesn't seem to feature much on this list, that of avoiding collision. My own cruising area is mostly the waters of the English Channel, frequented by many pleasure craft but also the busiest passage in the World for the through transit of ships. Some parts of the through passage are split into traffic schemes where special rules apply: I am not considering those areas, but other parts of the Channel, where it is in no way a "narrow channel", and in which vessel are not constrained by their draught. In such circumstances we are all aware that the Colregs give right-of-way to a sailing vessel (which as the stand-on vessel is expected to maintain her course and speed) over any power vessel (which is expected to give way). We are all equally aware that no such thing will happen, and that instead the rule "Small vessels give way to large ones" will be applied. To give credit where it's due, there are a few exceptions. Naval vessels, I've found, can be relied on to keep clear where the rules say they should. In general, the many passenger ferries will usually do the same (perhaps because there are so many witnesses on board). But as a general rule, merchant vessels, from coasters to supertankers, won't divert from their path by the slightest smidgeon. Might is right. The colregs are considered irrelevant. Nobody on the bridge will even consider changing course by 5 or 10 degrees for a few minutes, to avoid a small craft. We are forced to give in to this bullying, of course. Nobody could survive sailing English Channel waters for 40 years, as I have, by sticking to his rights. I imagine it's the same everywhere, but it would be interesting to learn if others on the list have the same experience. As far as interactions between large vessels and small ones is concerned, the colregs are a dead-letter. But now Doug's revelation, above, adds something to the picture. Imagine the scene on the bridge, when everyone knows that there's $1800 riding on exactly where the ship will be, within a small fraction of a mile, at the moment the master gives the word. Which one among them is going to be brave enough to order a course change to avoid me in my pesky little sailing craft, a few miles ahead on the port bow? George. ================================================================ contact George Huxtable by email at george@huxtable.u-net.com, by phone at 01865 820222 (from outside UK, +44 1865 820222), or by mail at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK. ================================================================