22/2020
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EAST COAST OF ENGLAND
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THAMES ESTUARY
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SUNK PRECAUTIONARY AREA
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SUNK CENTRE LIGHTVESSEL (ALL Vol A 2170, ALRS 51935).
Latitude 51° 50.100’N., Longitude 001° 46.020’E.
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Date: On about 17th December, 2020.
Amendment: Existing Light Vessel to be temporarily removed and a replacement Lighted Buoy established in lieu, as follows:-
Pillar: Red and white vertical stripes: Mo.(A)15 seconds: Red spherical topmark.
Racon, as follows:-
Type: Agile Frequency
Code: Morse “C”
Nominal Range: 10 miles
Frequency: X band 9320 MHz to 9500 MHz S band 2920 MHz to 3100 MHz
Display period: On 20 seconds.
Off 40 seconds.
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Total 60 seconds.
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AIS Transmission; MMSI Number 992351034.
Mariners are advised that the transmitted message 21 will be displayed as “Sunk Centre”.
Further notice will be given when the Lighted Buoy is removed and the Light Vessel re-established.
By Order,
Commander N. Hare,
Director of Navigational Requirements.
Trinity House,
Tower Hill,
London,
EC3N 4DH.
2nd December, 2020