PLA Navy Type 039B Improved Yuan-class Diesel-electric Submarine
PLA Navy (PLAN) Type 039B, improved Yuan-class diesel-electric submarine with acoustic-dampening anechoic tiles
"Anechoic tiles are rubber or synthetic polymer tiles containing thousands of tiny voids, applied to the outer hulls of military ships and submarines, as well as anechoic chambers. Their function is twofold:
• To absorb the sound waves of active sonar, reducing and distorting the return signal, thereby reducing its effective range.
• To attenuate the sounds emitted from the vessel, typically its engines, to reduce the range at which it can be detected by passive sonar."
Type 039B bow contains guidance sonar and forward torpedo tubes.
Type 039B conning tower with dive planes
Type 039B conning tower with communication equipment and snorkel
Type 039B conning tower with snorkel
Type 039B refectory/crew living quarters
Type 039B aft section with engine room and propeller shaft
Type 039B rudder
[Note: Thank you to Greyboy2 for the pictures.]