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The surveys revealed that high-mast lighting was by far the preferred method of lighting. [3] By 1967, Europe was known to have high-mast illumination technology in practice. 1968 saw the first permanent US installations of high-mast illumination starting in Auburn, Washington south of Seattle. The first American towers were 100 ft (30 m) tall ...
The mast of Deutschlandsender Herzberg/Elster had no aircraft warning lamps installed. It was instead lit by skybeamers mounted on small masts near the tower. This method was chosen as the mast was a mast radiator insulated against ground and for feeding the lamps on the mast otherwise special devices like Austin transformers would be required.
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Light mast without lamps Light mast at stadium. Light mast is a tall lighting specified [clarification needed] mast, which has several big searchlights on top of it. Light masts illuminates large areas and are possible to move, which is why they are used (for example) as farming, construction and emergency works implement.
High-mast lighting along Highway 401 in Ontario, Canada Conventional streetlights are used instead of high-mast lighting near airport runway approaches due to the negative effects caused by the latter. Because of the dangers discussed above, roadway lights are properly used sparingly and only when a particular situation justifies increasing the ...
Day shapes of standard and reduced sizes are both commercially available. Day shapes are commonly constructed from a light weight frame covered with fabric and are designed to be collapsible for ease of storage. A US Navy sailor lowers day shapes "ball, diamond, ball", signaling the end of restricted maneuvering
Air traffic control signal light gun in use at base flight tower. In the case of a radio failure or aircraft not equipped with a radio, or in the case of a deaf pilot, air traffic control may use a signal lamp (called a "signal light gun" or "light gun" by the FAA [1] [2]) to direct the aircraft.
Typographical symbols and punctuation marks are marks and symbols used in typography with a variety of purposes such as to help with legibility and accessibility, or to identify special cases. This list gives those most commonly encountered with Latin script. For a far more comprehensive list of symbols and signs, see List of Unicode characters.