Date : On or about 22nd November, 2006.
Amendment : (1) Nominal range of main navigation light to be temporarily reduced to 10 miles for approximately 3 days.
(2) Thereafter a new main navigation light to be introduced; exhibited during night time and in periods of reduced visibility, having a nominal range of 20 miles. Light character of Fl.15 seconds to remain unaltered but having a revised composition as follows:-
Flash : 0.2 second
Eclipse : 14.8 seconds
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Total : 15.0 seconds
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By Order,
Captain D. Glass,
Director of Navigational Requirements.
Trinity House,
London EC3N 4DH.
25th October, 2006.
