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''Alicia'' (Marlin Submarines AP6) is a 6-seater submarine designed and built by Marlin Submarines of Plymouth, England. Designed for research and tourism to depths of up to , ''Alicia'' offers passengers unparalleled views by having a forward section constructed of transparent acrylic spherical sections made by Stanley Plastics. The submarine is owned by Steven F. SmithJr., and currently under going an overhaul. Alicia was pressure tested down to (required is ). The budget was US$1.5 million and the final cost ended at US$2 million. The dive angle is at least partially accomplished with the battery holder of sliding back and forward on rails. 〔Dream submarine - National Geographic Channel〕 ==Visibility== The passenger section of the pressure hull consists of two intersecting transparent acrylic spheres, inside diameter and thick. The passengers and crew are treated to a spectacular all round view previously enjoyed only from the most advanced research submersibles. The vessel is the first ever to employ this twin sphere geometry. The craft is a 30% larger version of the US Submarines ''Discovery''() design concept, also created by Marlin Submarines in 1995, prior to the Alicia's development. ''Discovery'' is just inside diameter to reduce the crane weight. The passenger section of the ''Alicia'', at inside diameter, has just over twice the volume. The acrylic sphere, (the viewing area) was produced by Stanley Plastics Ltd, West Sussex(). 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「Alicia (submarine)」の詳細全文を読む スポンサード リンク
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