...Since then, hollow glass spheres have been used as buoyancy material to make them smaller and lighter, and to improve maneuverability underwater and ease of landing and storage, and many deep-sea submersibles with excellent performance and operation have been built. In particular, the American Alvin (built in 1964, modified in 1973) has a maximum operating depth of 4000m, which is inferior to the bathyscaphe type, but it has a record of 800 dives and is famous as a deep-sea submersible research vessel. In Japan, the Shinkai 2000, with a maximum operating depth of 2000m, was built in 1981 and recorded a diving depth of 2008m (the Shinkai 6500, built in 1989, recorded a diving depth of 6527m in the same year). ... *Some of the terminology that mentions "Alvin" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…その後,海中での機動性や着水,収容の容易性を高めるため,浮力材として中空ガラス球を用いて小型軽量化が図られ,性能面,運用面でも優れた深海潜水艇が多く建造されている。とくに,アメリカのアルビンAlvin(1964建造,73改造)は,最大使用深度は4000mとバチスカーフ型に劣るものの,800回に及ぶ潜航実績を有し,深海潜水調査船として有名である。日本でも,81年に使用深度2000m級のしんかい2000が建造され,2008mの潜航深度を記録している(その後89年に建造された〈しんかい6500〉が同年6527mの潜航深度を記録)。… ※「Alvin」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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