 Niobe was 105 meters ( 344 ft ) long overall and had a beam of 12 @.@ 2 m ( 40 ft ) and a draft of 5 @.@ 03 m ( 16 @.@ 5 ft ) forward . She displaced 2 @,@ 963 t ( 2 @,@ 916 long tons ; 3 @,@ 266 short tons ) at full combat load . Her propulsion system consisted of two triple @-@ expansion engines manufactured by AG @-@ Germania . They were designed to give 8 @,@ 000 shaft horsepower ( 6 @,@ 000 kW ) , for a top speed of 21 @.@ 5 knots ( 39 @.@ 8 km / h ; 24 @.@ 7 mph ) . The engines were powered by eight coal @-@ fired Thornycroft water @-@ tube boilers . Niobe carried 500 tonnes ( 490 long tons ) of coal , which gave her a range of 3 @,@ 570 nautical miles ( 6 @,@ 610 km ; 4 @,@ 110 mi ) at 10 knots ( 19 km / h ; 12 mph ) . She had a crew of 14 officers and 243 enlisted men . 
