rubberduck
Well-Known Member
Back in the day an acquaintance had a similar contraption as a light box in his car. It got him into a number of scuffles and long explanations with the law.
Back in the day an acquaintance had a similar contraption as a light box in his car. It got him into a number of scuffles and long explanations with the law.
Back in the day an acquaintance had a similar contraption as a light box in his car. It got him into a number of scuffles and long explanations with the law.
So altering to port means you missed him by 450 yards, altering to starboard you would have missed him by less than 100yds that suggests not altering at all you would have passed behind him by 100yds or so - perhaps he was happy with that distance.Agreed, however there was a SHB Boyne that was on my starboard bow and with his 5 knots closing on that turn to starboard track I may not have cleared him by the 100yds without slowing down (which I was also ready to do)
So altering to port means you missed him by 450 yards, altering to starboard you would have missed him by less than 100yds that suggests not altering at all you would have passed behind him by 100yds or so - perhaps he was happy with that distance.
Given the relative speed of the boats and assuming equal alteration in course in both cases it is a reasonable approximation.Except vector triangles don’t necessarily work in that way...
When is the When date ?
Given the relative speed of the boats and assuming equal alteration in course in both cases it is a reasonable approximation.
If you are familiar with Portsmouth there is enough information in the original post to get the courses of both boats. The course from the main channel through the submarine barrier to Spit Elbow PHM is pretty much perpendicular to the entrance channel to the harbour along which the yacht as proceeding.Pedant mode on: It would depend on the relative angles to each other of the course of the boats. At close to 90 degrees, your approximation might be close, but at more acute angles, it becomes very inaccurate. We don't know the relative course of the two craft. Why make assumptions?
Pedant mode on: It would depend on the relative angles to each other of the course of the boats. At close to 90 degrees, your approximation might be close, but at more acute angles, it becomes very inaccurate. We don't know the relative course of the two craft. Why make assumptions?
However, I do struggle with what to do about SUPs as I approach the somewhat narrow A27 bridge. I know I am constrained by my draft in a narrow channel, but not so sure they understand that, or indeed anything about IRPCS.
Not sure SUPs are vessels in terms of colregs anyway?
Sometimes I feel its best to accord them the same 'rights' as swimmers...
Bearing in mind that the most logical reason for the yotty, with or without his Breton cap, to be motoring up that channel is that he's come from France and is likely tired and might not be at his sharpest?
Where I am coming from:
At the weekend in Chichester I was suddenly surrounded by dingys in a race in a narrower channel at a low tide and spent more time going astern than ahead. The rules still apply.
I read the OP with difficulty.
In everyday parlance (nautical or otherwise) k is an abbreviation for kilo or thousand.
Then 'c' - what was that? After trying to make sense of the OP I guessed it was the OP's private abbreviation for cable.
He/she is entitled to use any odd abbreviation they wish, but they should tell us when they differ from standard.
I read the OP with difficulty.
In everyday parlance (nautical or otherwise) k is an abbreviation for kilo or thousand.
Then 'c' - what was that? After trying to make sense of the OP I guessed it was the OP's private abbreviation for cable.
He/she is entitled to use any odd abbreviation they wish, but they should tell us when they differ from standard.
Point taken
For what it's worth, I read it as "cable" without any difficulty.
Pete