1958: November Class (Soviet) First Non-U.S. Nuclear-Powered Subs
A November-class submarine circa the 1960s Photograph courtesy U.S. Naval Historical Center
The November class of attack submarines was the first nuclear-propelled Soviet series. In 1962
the first in the class, the K-3, also called the Leninsky Komsomol, was the first
Soviet sub to reach the North Pole, a feat first accomplished nearly four years earlier by the
United States Nautilus.
The November class was plagued by serious and sometimes fatal reactor accidents, such as a 1968
radioactive gas leak on K-27 that killed nine.