Evaluation of U. S. Diver's Co. Modified Conshelf VI and Conshelf XI Conversion to Conshelf XII Open Circuit Regulators,
NAVY EXPERIMENTAL DIVING UNIT WASHINGTON D C
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The U. S. Divers Conshelf VI was tested by the Experimental Diving Unit in 1963, in February 1973 for service use. In 1972 the Conshelf XII was tested by the Navy Experimental Diving Unit and in October 1972 was approved for service use. In 1971, the Conshelf XI superceded the Conshelf VI. The Conshelf XI was never submitted for testing hence never approved. At the present time, only the Conshelf XII is available. In an effort to rectify discrepencies in the Conshelf VI, XI, and XII regulators, U.S. Divers proposed converting all conshelf VI and XI to Conshelf XII.
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