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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.
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 ...
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 .
Barbier, Benard, et Turenne (BBT) was a French company founded in 1862, specializing in the manufacture of spotlights, Fresnel lenses for lighthouses, and lighting systems. [1] It was the world's leading producer of lighthouse beacons from the end of the 19th century onwards. It dissolved in 1982. [2]
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.