| Channel lightvessel 23 at Canning Dock | |
| History | |
|---|---|
| | |
| Operator | Trinity House |
| In service | 25 November 2006 |
| Out of service | August 2021 |
| Status | Withdrawn as of August 2021 |
| General characteristics | |
| Type | Lightvessel |
| Channel | |
| Racon | O |
| First lit | 1979 |
| Deactivated | August 2021 |
| Characteristic | |
| Channel lighted buoy | |
| Markings | Vertical stripe (red,white) |
| Operator | Trinity House |
| Racon | O |
| First lit | August 2021 |
| Light source | LED lamp |
| Range | 9 nmi (17 km;10 mi) |
| Characteristic | Fl W 10s |
Channel Lightvesel was the name of a lightvessel station located in the English Channel between 1979 and August 2021,when it was replaced with a lighted buoy. It is also one of the 22 coastal weather stations whose conditions are reported in the BBC (Met Office) Shipping Forecast - the weather station is still announced as Channel Lightvessel Automatic despite being replaced by the buoy,{{As of|2025|lc=y}. [1] The vessel's position was 49°55′N2°54′W / 49.917°N 2.900°W , approximately 56 km (35 mi) north-northwest of Guernsey.
The lightvessel marked the western end of the English Channel Traffic Separation Zone. [2]
The light, on a 12 m (39 ft) tower, had a range of about 15 miles, and flashed for .3 seconds every 15 seconds. The fog signal gave a single 2 second blast every 20 seconds. The agile radio beacon transmitted the letter "O" in morse code on X band and S band frequencies for nine seconds every thirty seconds. [3]
The Channel lightvessel was established in 1979 as part of the Off Casquets Traffic Separation Scheme (TSS), introduced following the 1978 grounding of the Amoco Cadiz . [4] The lightvessel was intended to clearly define the TSS, as such schemes were at the time a new feature, rather than marking a physical hazard to navigation. [4]
In May 2021 it was announced that the vessel would be replaced by a Type 1 buoy in August 2021. [5] In August 2021 Trinity House stated that the replacement had been completed, [6] with the Channel Lighted Buoy being deployed by THV Galatea. [7] [8] The light vessel was towed away by THV Patricia.
The light on the buoy flashes every 10 seconds. The agile radio beacon transmits the letter "O" in morse code on X band and S band frequencies for twenty seconds every sixty seconds. [9] The light is an LED with a range of 9 nautical miles. [10]