KN-11 submarine-launched ballistic missile

The KN-11 is a North Korean-built submarine-launched ballistic missile (SLBM) modeled after the Soviet R-27 .

The missile has a two-stage, solid-rocket motor. Early tests of the weapon were with liquid-fueled engines.

The KN-11 has been used with the SINPO-class submarines.

Although capable of carrying conventional explosives, and potentially biological or chemical warheads, analysts believe that North Korea sees the KN-11 as a strategic nuclear weapon.

The KN-11 uses launch sequence...