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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 Alligator Reef Light ： ウィキペディア英語版 Alligator Reef Light Alligator Reef Light is located east of Indian Key, near the Matecumbe Keys of Florida in the United States, north of Alligator Reef itself. The station was established in 1873. It was automated in 1963 and was last operational in July, 2014, and is being replaced by a 16' steel structure with a less powerful light located adjacent to it. The structure is an iron-pile skeleton with a platform. The light is above the water. It is a white octagonal pyramid skeleton framework on black pile foundation, enclosing a square dwelling and a stair-cylinder. The lantern is black. The original lens was a first order bivalve Fresnel lens. The light characteristic of the original light was: flashing white and red, every third flash red, from SW by W 1/2 W through southward to NE 1/8 E, and from NE by E 3/4 E through northward to SW 3/8 S; flashing red throughout the intervening sectors; interval between flashes 5 seconds. It has a nominal range of in the white sectors and in the red sectors. The new light will have a range of approximately . It is listed as number 980 in the USCG light lists.〔http://keysnews.com/node/58040〕 ==Historical information== The name honors the U.S. Navy schooner ''Alligator'', part of the U. S. Navy Anti-Piracy Squadron that had recently been established in Key West, which went aground at this location in 1822. The ''Alligator'' was blown up after removing as much as possible from it to prevent it from being used by pirates. Countless vessels have also sunk here on the reef's jagged coral. This lighthouse cost $185,000 to build at that time. To support the tower, a 2,000 lb (900 kg) hammer was used to drive the 12" (300 mm) iron pilings ten feet (3 m) into the coral. 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「Alligator Reef Light」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.