It is a type of nuclear ballistic missile submarine designed and built by the Soviet Union for the Soviet Navy.
In English it is called a typhoon, but in Russian it is known as an akra (shark).
It is known for their complete stealth and soundlessness when moving underwater.
They are measured 566 feet lengthwise, 76 m breadthwise and reached a height of 38 m with a displacement of over 48,000 tonnes.
They were decked with 20 huge R-39 ‘Rif’ intercontinental ballistic missiles.
They had an ice-breaking mechanism, a strong stern fin, and a retractable system.