28 May 2015

Editorial: Why China's Submarine Force Still Lags Behind

By Franz-Stefan Gady

Why the People’s Liberation Army Navy’s underwater fleet still lags behind those of other navies.

China is fielding an impressive fleet of conventional and nuclear submarines. According to the Pentagon’s Office of Naval Intelligence (PDF), the People’s Liberation Army Navy’s (PLAN) underwater force consists of five nuclear attack submarines (SSN), four nuclear ballistic missile submarines (SSBN), and 53 diesel attack submarines (SS/SSP).

The Pentagon in its annual report to the U.S. Congress on Chinese military developments estimated that by 2020 this force will likely grow to between 69 and 78 submarines.

The bulk of China’s conventional sub armada consists of 13 Song-class (Type 039) diesel-attack subs and 13 Yuan-class (Type 039A) air independent-powered (AIP) attack submarines with an additional 20 Yuan-class vessels planned for production.

The submarine force’s main mission remains anti-surface warfare (ASUW) along major sea lines of communication (SLOC). Weaknesses in anti-submarine warfare and land-attack capabilities persist in the PLAN’s submarine fleet, according to a recently published report by the RAND Corporation.

One of the major structural weaknesses of the force is Chinese propulsion engineering, or the lack thereof, since the majority of engines used in Chinese subs are imported foreign technology, often license-built in the country.

Read the full story at The Diplomat