Taking one of these U-Boats as an example, the U-505 submarine sunk an impressive 8 ships and yet still was below the devastating 14:1 average of the early war years. But what did life look like ...

When facing signals with frequencies as low as 100Hz, the radar cross-section (RCS) of a nuclear submarine in seawater can reach up to 88 square metres (947 square feet). This means that ...