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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク ACA Hurricane ： ウィキペディア英語版 ACA Hurricane The ACA Hurricane was a 130dB civilian defense siren, created in 1968, and stopped production around 1980, produced by Alerting Communicators of America, now American Signal Corporation. ==History== The ACA Hurricane 130 was designed by Alerting Communicators of America and presented at a Civil Defense convention in November, 1968. They introduced other sirens, however, this utilized new fiber casting techniques, never before used by any other company. The Hurricane started off with a square horn that ended with two throats where the horn attaches to the chopper enclosure. These were produced until 1973, when a larger, rounded horn was made that was a true exponential horn. The siren was popular with towns looking for a 130dB siren. The corporation continued production until 1980, when it was replaced with the P-50 50 HP siren. All Hurricanes are very rare, as most of them have been replaced by newer sirens. Additionally, the Hurricane siren was a supercharged mechanical siren, utilizing a blower and high output chopper similar to the Federal Signal Thunderbolt. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ACA Hurricane」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.