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Di laman Kapal selam kelas Delta:

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The 667BDR Kalmar/Delta III-class submarine is a further development of Project 667, maintaining the double-hulled design with a thin, low magnetic steel outer hull wrapped around a thicker inner pressure hull. Development began in 1972 at the Rubin Central Design Bureau for Marine Engineering.[perlu rujukan] The submarine was the first that could launch any number of missiles in a single salvo, as well as the first submarine capable of carrying ballistic missiles with multiple independently targetable reentry vehicles. The submarine carried 16 of the R-29R missiles each carrying 3 to 7 MIRVs, with a range of 6,500 hingga 8,000 km (4,000 hingga 5,000 bt), depending on the number of re-entry vehicles.