The international regulations for preventing collisions at sea are very specific when navigation lights
should be shown.
Northrop Grumman Corporation (NYSE: NOC) has signed a full production contract for the Navigation Lights
Shapes and Sounds (NLSS) signaling system for the Royal Navy's next-generation Queen Elizabeth Class Aircraft Carriers.
Incorporating an efficient optical design and a peak intensity of 44 candela (as defined by the International Association of Marine Aids to Navigation and Lighthouse Authorities [IALA]), the M650 marine lantern includes more than 256 flash patterns, and can be ordered in all IALA (December 2008) marine aid to navigation light
colours -- green, red, blue, yellow and white -- as indicated on each unit by a coloured band on the housing.
Northrop Grumman Sperry Marine has already completed the initial design phase of the contract, including change requests, and is currently designing a Navigation Light
System under an option in the production contract.
Recently the original navigation light
was removed from the building, possibly by someone who thought it may otherwise be destroyed.
Troika Transatlantic is never dark, owing to the navigation light
high on the bow.
The project will seek to replace the corroded lantern housing, provide a new access ladder and platform for the navigation light
and install a new pounds 12,000 lamp at the top of the lighthouse.
Scotland received a vivid demonstration of this ruggedness last December when a Carmanah marine navigation light
washed ashore on the island of Papa Stour, Shetland Islands, after going adrift off Canada's East Coast over a year earlier.
They are said to have been watching a football match on television when the ferry rammed a rock with a navigation light
The Red House is believed to have been Cardiff's only pub with a navigation light
, guiding ships coming into Queen's Dock.
It was taken over by Welsh Brewers in 1976 and is believed to be Cardiff's only pub with a navigation light
Locals said that the outcrop of rocks was 76ft high with a navigation light
on the top.