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"Captain" Billy Deans is a pioneering wreck and technical diver. Although "Captain" is the nickname which is universally applied to Billy Deans, he is in fact a US Coast Guard-rated captain up to 100 tons. Billy Deans is a former member of the board of directors of International Association of Nitrox and Technical Divers (IANTD). He was a technical diving instructor for the US Government. In addition to teaching diving to the United States Army Corps of Engineers, he also taught Special forces divers for the United States Army and the United States Navy. He is also a Professional Association of Diving Instructors (PADI) and National Association of Underwater Instructors (NAUI) recreational diving instructor. In Kevin McMurray's book, ''Deep Descent'', Billy Deans is described as "the world's best diver".〔 McMurray does not use this description himself, but cites a third party publication which he does not identify.〕 Billy Deans was one of the early pioneers in relation to the use of trimix for deep diving. During the exploration of U-869 chronicled in the best selling book, ''Shadow Divers'', John Chatterton and Richie Kohler sought instruction from Billy Deans in the use of trimix (which had, until then, largely been restricted to cave exploration diving in Florida). These presaged a number of North Eastern wreck divers to seek trimix training from Billy Deans, leading to its popularity as a deep diving breathing gas. Billy Deans has been involved in a number of high profile shipwreck expeditions over the years, including Gary Gentile's expedition to the ''USS Monitor'', various exploration dives on the ''SS Andrea Doria'',〔 Billy Deans was one of the diving team involving in the recovery of the body of John Ormsby after his fatal accident on the ''Andrea Doria''. Coincidentally, so was Gary Gentile.〕 the ''USS Wilkes-Barre'' and U-2513. In late 1993, Billy Deans served as Dive Operations Officer for an expedition recovering treasure and artifacts from a Spanish brigantine which sank in the Gulf of Mexico off New Orleans. Billy Deans ran a dive shop (known as Key West Diver) in Key West, FL for many years prior to retiring from diving in 1998. He qualified as an ICU nurse. ==External links== * (IANTD board of directors ) * (Sterling divers - Billy Deans ) 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「Billy Deans (diver)」の詳細全文を読む スポンサード リンク
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