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The VRB-25 is a lighthouse optical system designed and built by Vega Industries Ltd. in Porirua, New Zealand. It was originally designed in 1993–95 with the assistance of the United States Coast Guard to meet USCG requirements for a robust mechanism requiring minimum maintenance. It has become the Coast Guard's standard 12 volt rotating ...
Originally intended for use as an aerodrome beacon, it was also widely used in marine lighthouses. Depending on the type of bulb installed, the beam could be seen for 18 to 26 nautical miles (33 to 48 km). The unit consists of a 25-inch aluminum housing with a parabolic reflector. An electric motor and gearbox drives the optical unit's rotation.
An airway beacon (US) or aerial lighthouse (UK and Europe) was a rotating light assembly mounted atop a tower. These were once used extensively in the United States for visual navigation by airplane pilots along a specified airway corridor .
In December 2008, the old-style bulbs in the aerobeacons were replaced with 400 watt metal halide bulbs. [8] Due to coastal erosion, by the early 1990s Nauset Light was less than 50 feet (15 m) from the edge of the 70-foot (21 m) cliff on which it stood. In 1993, the Coast Guard proposed decommissioning the light.
Clockwork occulting mechanism formerly in use at Coquet Island Lighthouse. An occulting light is a rhythmic light in which the duration of light in each period is longer than the total duration of darkness. In other words, it is the opposite to a flashing light where the total duration of darkness is longer than the duration of light.
Aerodrome beacon, a beacon installed at an airport or aerodrome to indicate its location to aircraft pilots at night; Airway beacon, a rotating light assembly mounted atop a tower; Emergency vehicle lighting, one or more visual warning lights fitted to a vehicle; Lighthouse, a physical structure designed to emit light for navigational aid
Lampchanger in the Maughold Head Lighthouse, Isle of Man.This is a model NALC-89, produced by Nav-Aids Systems, LTD, in Kent, England. An automatic lamp changer (or lampchanger) is a device used to ensure that a navigational light such as a marine lighthouse or aero beacon stays lit even if a bulb burns out.
The lighthouse and three keepers' dwellings have been restored, and are open to the public seven days a week. The lighthouse tower is open for climbing. The original 1867 Barbier et Fenestre first order fixed lens (installed 1887), and 1860 "Henry Lepaute" rotating first order Fresnel lens used at Cape Canaveral Light Station are all on display ...