Type 205 submarine
Class of vessel
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The Type 205 was a class of German diesel-electric submarines. They were single-hull vessels optimized for the use in the shallow Baltic Sea. The Type 205 is a direct evolution of the Type 201 class with lengthened hull, new machinery and sensors.... Wikipedia
Speed: 10 knots (19 km/h; 12 mph) surfaced; 17 knots (31 km/h; 20 mph) submerged
Test depth: 100 m (330 ft)