The other two boats are US-built Guppies, the oldest operational submarines in the world. Just how spine-chillingly antiquated these subs are is illustrated by the story of their development. The US Navy obtained the Guppy technology by testing and reverse engineering captured Nazi U-boats. This is the state of technology that Taiwan still sends to plough the seas in 2010.[atimes.com]

You would think that Taiwan could build their own ...