 Sperber was 66 @.@ 9 meters ( 219 ft ) long overall and had a beam of 9 @.@ 36 m ( 30 @.@ 7 ft ) and a draft of 4 @.@ 4 m ( 14 ft ) forward . She displaced 1 @,@ 359 t ( 1 @,@ 338 long tons ; 1 @,@ 498 short tons ) at full combat load . Her propulsion system consisted of two horizontal 2 @-@ cylinder double @-@ expansion steam engines powered by four coal @-@ fired cylindrical water @-@ tube boilers . These provided a top speed of 13 @.@ 5 knots ( 25 @.@ 0 km / h ; 15 @.@ 5 mph ) and a range of approximately 3 @,@ 290 nautical miles ( 6 @,@ 090 km ; 3 @,@ 790 mi ) at 10 knots ( 19 km / h ; 12 mph ) . To supplement the steam engines , she was fitted with a barquentine rig . Sperber had a crew of 9 officers and 108 enlisted men . 
