In fact, the Alfa-Class was second in speed to only one other submarine model, a Soviet prototype known as K-222. The Project 705 Lira marked the first time that titanium was used in the hull ...

One of the most unique and interesting submarines was the old Alfa-class nuclear-powered submarine. Known as Project 705 Lyra, the Alfa-class was meant to push the boundaries of undersea speed ...

Alfa-Class Submarines: The Soviet Union's Titanium Underwater Speedsters Between 1968 and 1981, the Soviet Union produced a total of seven Project 705 Lira (NATO reporting name Alfa) nuclear ...

By Choe Sang-Hun Reporting from Seoul North Korea said on Saturday that it was building its first nuclear-powered submarine to enhance its nuclear weapons abilities, and the state news media ...