Sierra I

E1984554 UNEXPLORED

Sierra I is the NATO reporting name for the first generation of Russian nuclear-powered attack submarines in the Sierra class, known for their titanium hulls and deep-diving capabilities.

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All labels observed (2)

Label	Occurrences
Sierra I canonical	1
Sierra II	1

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Sierra-class submarine → subclass → Sierra I ⓘ

Sierra-class submarine → subclass → Sierra II ⓘ

linked to: Sierra I