German Type UC III submarine

Design

German Type UC III submarines had a displacement of 491 tonnes (483 long tons) when at the surface and 571 tonnes (562 long tons) while submerged. They had a length overall of 56.51 m (185 ft 5 in), a beam of 5.54 m (18 ft 2 in), and a draught of 3.77 m (12 ft 4 in). The submarines were powered by two six-cylinder four-stroke diesel engines each producing 300 metric horsepower (220 kW; 300 shp) (a total of 600 metric horsepower [440 kW; 590 shp]), two electric motors producing 770 metric horsepower (570 kW; 760 shp), and two propeller shafts. They had a dive time of 15 seconds and were capable of operating at a depth of 75 metres (246 ft).