'Huge Wave-1', also known as the JL-1; NATO reporting name CSS-N-3) was China's first generation nuclear submarine-launched ballistic missile (SLBM).

The general designer of the missile was Huang Weilu,[2] and Chen Deren (Chinese: 陈德仁, 1922 – 21 December 2007) served as his deputy.

The missile was assembled at Factory 307 (now Nanjing Dawn Group [南京晨光集团]).

[citation needed] The JL-1 was initially tested and deployed on the PLAN's modified Golf class SSB.

The Golf has since been modified again for further testing of other missiles, such as the JL-2, which has test-launched multiple times with varying levels of success.