The Type 039C Yuan-class submarine is an open-source designation for a later Chinese People's Liberation Army Navy Yuan-family diesel-electric attack submarine with air-independent propulsion and a distinctive faceted sail. Naval News, Covert Shores, NTI, and GlobalSecurity describe it as an operational PLAN development of the Type 039A/B line, while public sources still leave the official designation, total production count, and exact weapon fit partly unconfirmed.
The useful public record for the Type 039C is strongest on external configuration and Yuan-family context, not on combat use. The page remains relationship-only because this pass found no direct source tying the exact Type 039C boat to a cataloged armed conflict.
Naval News and Covert Shores describe the prominent faceted sail as the main recognition feature; later Naval News analysis connects the shaping to reduced active-sonar return rather than a vertical-launch fit.
USNI and NTI provide the stronger open-source baseline for Yuan-family size, AIP propulsion, and torpedo-tube armament, while Type 039C-specific public data remains narrower.
Type 039C is a common open-source label. Public Chinese material has shown the chined-sail submarine, but sources still caution that the official PLAN designation and full capability set are not publicly released.
Type 039C is treated here as a later Yuan-family variant label used by Western and specialist open-source reporting. The Chinese Navy has shown the chined-sail boat publicly, but the official PLAN designation and clean production split remain unclear.
| Variant | Configuration | Designation notes |
|---|---|---|
 | Baseline Yuan-family AIP submarine | USNI and NTI describe the Type 039A/B/C Yuan family as China's diesel-electric AIP attack-submarine line, and Naval News identifies the 039C as a later Yuan-family development. Sources: Essay: Inside the Design of China's Yuan-class Submarine, Naval News: China's Newest Attack Submarine Now Stationed Near Taiwan, China Submarine Capabilities |
 | Earlier serial Yuan-family variant | Covert Shores distinguishes the 039C's chined sail from earlier Yuan sails and places it after the 039A/B line in the same family. Sources: Covert Shores: OSINT Identification Of Type-039 Song & Yuan Class Submarines, Covert Shores: Chinese Navy's Latest Type-039C Yuan Class |
Naval News reported that the new Yuan-family boat was first seen in May 2021 and had a distinctive faceted sail.
Sources: Naval News: China's Newest Attack Submarine Now Stationed Near Taiwan
Naval News said the boat had been commissioned, was based with the East Sea Fleet, and was operating near Taiwan.
Sources: Naval News: China's Newest Attack Submarine Now Stationed Near Taiwan
Naval News assessed the Type 039C's angled sail as a survivability feature meant to reduce active-sonar returns and complicate target classification.
Sources: Naval News: Chinese Submarine Is First To Exploit New Stealth Technology
GlobalSecurity reported that a PLA Navy anniversary video showed a submarine matching the Type 039C shape previously described in open-source reporting, while noting that official details remained limited.
Sources: GlobalSecurity: Type 039C AIP conventional submarine
