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The US Navy has used several decompression models from which their published decompression tables and authorized diving computer algorithms have been derived. The original C&R tables used a classic multiple independent parallel compartment model based on the work of J.S.Haldane in England in the early 20th century, using a critical ratio exponential ingassing and outgassing model.
Mark 1A Computer Mk 37 Director above the bridge of destroyer USS Cassin Young with AN/SPG-25 radar antenna. The Mark 1, and later the Mark 1A, Fire Control Computer was a component of the Mark 37 Gun Fire Control System deployed by the United States Navy during World War II and up to 1991 and possibly later.
The IBM Naval Ordnance Research Calculator (NORC) was a one-of-a-kind first-generation (vacuum tube) computer built by IBM for the United States Navy's Bureau of Ordnance. It went into service in December 1954 [ 1 ] and was likely the most powerful computer at the time. [ 2 ]
Impeller log:A variation of this approach is known as a patent log, which is towed from the stern of a ship. The patent log includes a mechanical register that counts the log's rotations as it is being towed. The patent log was invented in 1688 by the English instrument maker Humphry Cole. The patent log is also known as a screw log or taffrail ...
The Harvard Mark II, also known as the Aiken Relay Calculator, [1] [2] [3] was an electromechanical computer built under the direction of Howard Aiken at Harvard University, completed in 1947. It was financed by the United States Navy and used for ballistic calculations at Naval Proving Ground Dahlgren .
A logbook (a ship's logs or simply log) is a record of important events in the management, operation, and navigation of a ship. It is essential to traditional navigation, and must be filled in at least daily. The term originally referred to a book for recording readings from the chip log that was used to estimate a ship's speed through the ...
The Bluejacket's Manual is the basic handbook for United States Navy personnel. First issued in 1902 to teach recruits about naval procedures and life and offer a reference for active sailors, it has become the "bible" for Navy personnel, providing information about a wide range of Navy topics. The current edition is the 26th, published in 2023.
The United States Navy occupational rating of data systems technician (abbreviated as DS) was a designation given by the Bureau of Naval Personnel to enlisted members who satisfactorily complete initial data systems technician "A" school training. The primary training location for the DS rating was Combat System Technical Schools Command (CSTSC ...