GHA
Well-known member
Interesting , never heard of these before .
I've seen the one in Southampton Water. Very clear and easy to read, I wonder if they work at night.
I don't understand the conclusion of the video that the use of the light he is standing next to is being used in a "really weird" way to stop mariners anchoring on an undersea cable. To me, that sounds like an excellent application of the technology.
Richard
Odd I thought the one in Southampton Water was a trial. It looks like a leading line but it is oriented at 90 degrees to the main channel.
I don't understand the conclusion of the video that the use of the light he is standing next to is being used in a "really weird" way to stop mariners anchoring on an undersea cable. To me, that sounds like an excellent application of the technology.
Richard
The film didn't stream properly for me but there is something similar at Shotley. To be honest, and reuse a tired cliche, I find it harder to use than a traditional transit of posts or leading marks, but I can see that it has its uses.
It's oriented precisely over the oil pipeline (not undersea cable) that crosses the channel
Pete
Yes?
Pete
Nothing really - just thought that for a leading line the arrows would point towards the safe water and if they are marking a hazard perhaps they should point away from it.
To my embarrassment, I've never noticed the Southampton Water one. But then I've never tried to anchor there. iSailor has it marked as a yellow directional light. When you go further in on the 'info' tag it calls it a Moire effect light. There is a clearly marked restricted area either side of the pipeline, so the directional light makes sense in that context, telling you to proceed away from the restricted area.
I didn't know they weren't known.
Can you tell whether the light marking the pipeline has the arrows directing mariners away from either side of the pipe i.e. < >, or do the arrows point towards the pipe i.e. > < as mentioned above?
Richard