=== to the surprise of US observers, China had built new Yuan-class diesel submarines that combine Russian technology and Chinese engineering.
Chicoms on the Kursk ... I guess we'll always just have to wonder.
the Yuan & Kilo class subs mentioned here are D/E subs,not nuclear subs & hence cannot be compared to the Kursk.Russians subs are as good ,if not better than their European counterparts as far as weaponry & quieting is concerned.