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The Chrysler Air Raid Siren is an outdoor warning siren produced during the Cold War era that has an output of 138 dB(C) at 100 feet. It was known as the Chrysler Bell Victory Siren during its first generation, which was between the end of World War II and the fall of the Berlin Wall. It is reputed to be the loudest air raid siren ever produced ...
A British air raid siren from the Second World War. All clear is the signal, generally given by an air raid siren, which indicates that an air raid or other hazard has finished and that it is safe for civilians to leave their shelters; it is commonly used in radios as well.
The Italian War Ministry began installing air raid sirens and issuing air defence regulations in 1938. Production was entrusted to La Sonora, founded in 1911 and still active today. [38] During World War II, every town had a siren, and several were present in each large city.
Chrysler Air-Raid Siren; Sentry Siren; SiraTone This page was last edited on 5 August 2024, at 16:06 (UTC). Text is available ...
Air raid sirens sounded at 2:25 am throughout Los Angeles County. [13] A total blackout was ordered and thousands of air raid wardens were summoned to their positions. At 3:16 am, the 37th Coast Artillery Brigade began firing .50-caliber machine guns and 12.8-pound (5.8 kg) anti-aircraft shells into the air at reported aircraft; over 1,400 ...
Acting upon advice from Brownell, the commanding officer of III Corps, Lieutenant General Gordon Bennett, ordered an air raid warning for Fremantle and Perth. This led to No. 85 Squadron being readied, air raid sirens being sounded, air raid wardens taking their posts, and the evacuation of hospitals. No raid eventuated and the "all clear ...
Air Raid Precautions (ARP) refers to a number of organisations and guidelines in the United Kingdom dedicated to the protection of civilians from the danger of air raids. Government consideration for air raid precautions increased in the 1920s and 30s, with the Raid Wardens' Service set up in 1937 to report on bombing incidents. [ 1 ]
The first large scale air raid occurred during World War I in 1915, when London was bombed by 15 German Zeppelin dirigibles at night. Since the residents of London, and many of its defenders, were asleep, a loud warning system for air raids made sense, leading to the creation of the air raid siren.