> OR the converse: that thing is NOT blocking my path, it's NOT an
> obstruction. A simple truth.
I fear I disagree. An obstruction is an object, that just is. Whether or not its actively obstructing (or impeding would be an alternate word) is a separate issue in standard english. I don't much like the definition, and I think one measured in boat's beam could be better, but I am definitely in favour of the universal definition. Don't want boats having to agree whether its an obstruction or not.
Which leads us neatly on to the second half. Is the object obstructing, ie should RRS19 be active. We could say obstructing, or impeding, or influencing course. Or we could just use adjacency. Personally I like adjacency, because, again, there's less of a matter of opinion about it. So we could say adjacent to the obstruction, but 'at the obstruction' is simpler language and uses shorter words. A good thing.
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Ok so much for that, but lets go back to the scenario. Is there a problem with the rules that needs fixing? Clearly as we've spent some pages pin dancing and logic chopping there is an issue, but I very greatly doubt it comes up often enough, unlike the mirror situation where its a continuing obstruction, that we need a rewrite. A paragraph in the continuing obstruction case should be enough. So what? I don't much like rules turning on and off or overuling another. Complexity again. Both rules active works well enough provided a case provides a bit of clarity.
It all comes down, for what my opinion is worth, to a single issue. If two boats both have a claim for room to a gap only one will fit through what happens? We have two interpretations, and each has arguments in favour.
One is to say that noone goes through, both boats must go outside both objects. The virtue of this one is that its a simple interpretation and it matches the situation when neither object is a mark.
The other is to take what I call Angelo's interpretation , that required room includes room to give the other boat room, and if there isn't space to do that RRS19 turns off and only 18 is left. The logic of this is somewhat convoluted which I don't really like, but logically perhaps purer. Also the end result is the one most would see as fairer. ROW gets to round the mark and sail her desired course.Give way must go round or waIt. This is also a better match to the continuing obstruction case.
Personally I wouldn't have a problem with either.
That leaves us with the capsized boat scenarios. I sailed skiff types, its familiar territory. I can't get excited about this. In practice if someone p****s it in in front of you rules are out of the window, its just a question of trying to find a gap you can get through without hitting anything.