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  2. Navigation light - Wikipedia

    en.wikipedia.org/wiki/Navigation_light

    Small power-driven vessels (under 12 metres (39 ft)) may carry a single all-round white light in place of the two or three white lights carried by larger vessels, they must also carry red and green navigation lights. Vessels under 7 metres (23 ft) with a maximum speed of less than 7 knots (13 km/h; 8.1 mph) are not required to carry navigation ...

  3. Day shapes - Wikipedia

    en.wikipedia.org/wiki/Day_shapes

    The appropriate lights may also be displayed during the day at times of restricted visibility or other necessary circumstances. [3] Vessels under 7 meters are generally not required to display day shapes even if they are required to display lights at night. [4] A square black flag displayed over the ball may be used as a distress signal. [5]

  4. Light characteristic - Wikipedia

    en.wikipedia.org/wiki/Light_characteristic

    A Morse code light is light in which appearances of light of two clearly different durations (dots and dashes) are grouped to represent a character or characters in the Morse Code. For example, "Mo(A)" is a light in which in each period light is shown for a short period (dot) followed by a long period (dash), the Morse Code for "A".

  5. Lightship - Wikipedia

    en.wikipedia.org/wiki/Lightship

    The '20 class' is a slightly larger type of vessel that derives its power from diesel electric generators. Where a main light with a visible range in excess of 20 nautical miles (37 km) is required, a '20 class' vessel is used, as the main light from a Trinity House solar lightvessel has a maximum range of 19 nautical miles (35 km).

  6. TS Empire State VI - Wikipedia

    en.wikipedia.org/wiki/TS_Empire_State_VI

    Students in the Regiment of Cadets operated the vessel for a summer sea term as part of their training requirements. The vessel's 2022 voyage, her last, ended on 2 August. [12] The ship was retired after a 60-year service career. [13] The ship held the record as the longest serving power-driven vessel ever used by the school.

  7. Lightvessel stations of Great Britain - Wikipedia

    en.wikipedia.org/wiki/Lightvessel_stations_of...

    Light vessel no. 3, Lightvessel no. 68: Humber Humber Conservancy Board: Humber: Helwick (from 1937 until 1942) Maintained by Humber Conservancy Board. Kentish Knock Kentish Knock: North Sea: Light vessel no. 3, Lightship 2000, Jenni Baynton (from 1949 until 1953) Smiths Knoll Smiths Knoll 52°43′30″N 2°18′0″E [22] Trinity House: North Sea