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The system was powered by a 24-kilowatt generator, based around a 51-horsepower (38 kW) 8-cylinder engine, giving a current of 200 amperes at 110 volts. The searchlight was attached to the generator by a cable 200 meters long. The system had a detection range of about 8 kilometers for targets at an altitude of between 4000 and 5000 meters. [6]
ATS officers-in-training crew a 90 cm searchlight in Western Command, 1944. A searchlight (or spotlight) is an apparatus that combines an extremely bright source (traditionally a carbon arc lamp) with a mirrored parabolic reflector to project a powerful beam of light of approximately parallel rays in a particular direction.
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A modern LUU-2B flare at 1,000 feet altitude illuminates the ground at 5 lux in a radius of 1500 feet. Burn time is 4–5 minutes. The flare is 36 inches long, 4.9 inches in diameter, and weighs about 30 pounds. A similar design called LUU-19B can provide covert illumination in the near-infrared (IR) spectrum with virtually no visual signature.
Apart from AA defence, searchlights were used in the North West Europe campaign to reflect light off the cloudbase to provide 'artificial moonlight' or 'movement light' (also known as 'Monty's moonlight') in support of night operations. 344th and 356th Independent S/L Batteries pioneered this technique using their mobile 90 cm searchlights. [23]
Mari Yamamoto will star opposite Brendan Fraser in Hikari’s “Rental Family.” The film follows a down and out actor living in Tokyo, who is hired as the token American guy for a Japanese ...
The ceiling projector or cloud searchlight is used to measure the height of the base of clouds (called the ceiling) above the ground. It is used in conjunction with an alidade , usually positioned 1000 ft (300 m) away and wherever possible set at the same level.