667AM YANKEE II
In 1977 the "K-140" submarine was equipped with the first D-11 Soviet sea based solid-fuel missiles and received the designation 667AM Yankee II. The 12 P-31 missiles loaded on the submarine could be fired from a depth up to 50 meters. The torpedo tubes could be reloaded in less than in one minute using a "dry" launch technique. Its submerged displacement increased to 10,000 tons.
The Nunn-Lugar Cooperative Threat Reduction program is scheduled to dismantle 25 Delta-class, five Typhoon-class, and one Yankee-class ballistic missile submarines capable of launching over 400 missiles with over 1,700 warheads, by the year 2003. As of September 1999 US specialists had helped disassemble one Yankee- and six Delta-class submarines, while the Russians had destroyed another five ballistic missile subs on their own using American equipment.
