 Kaiser Friedrich III was 125 @.@ 3 m ( 411 ft 1 in ) long overall and had a beam of 20 @.@ 4 m ( 66 ft 11 in ) and a draft of 7 @.@ 89 m ( 25 ft 11 in ) forward and 8 @.@ 25 m ( 27 ft 1 in ) aft . The ship was powered by three 3 @-@ cylinder vertical triple @-@ expansion steam engines that drove three screw propellers . Steam was provided by four Marine @-@ type and eight cylindrical boilers , all of which burned coal . Kaiser Friedrich III 's powerplant was rated at 13 @,@ 000 metric horsepower ( 12 @,@ 822 ihp ; 9 @,@ 561 kW ) , which generated a top speed of 17 @.@ 5 knots ( 32 @.@ 4 km / h ; 20 @.@ 1 mph ) . 
