 Re d 'Italia was 99 @.@ 61 meters ( 326 @.@ 8 ft ) long overall ; she had a beam of 16 @.@ 76 m ( 55 @.@ 0 ft ) and an average draft of 6 @.@ 17 m ( 20 @.@ 2 ft ) . She displaced 5 @,@ 610 metric tons ( 5 @,@ 520 long tons ; 6 @,@ 180 short tons ) normally and up to 5 @,@ 869 t ( 5 @,@ 776 long tons ; 6 @,@ 469 short tons ) at full load . Her hull was built from green wood . She had a crew of 565 . The ship 's propulsion system consisted of one single @-@ expansion steam engine that drove a single screw propeller , with steam supplied by four coal @-@ fired , rectangular boilers . Her engine produced a top speed of 10 @.@ 6 to 10 @.@ 8 knots ( 19 @.@ 6 to 20 @.@ 0 km / h ; 12 @.@ 2 to 12 @.@ 4 mph ) from 1 @,@ 812 to 1 @,@ 845 indicated horsepower ( 1 @,@ 351 to 1 @,@ 376 kW ) . She could steam for about 1 @,@ 800 nautical miles ( 3 @,@ 300 km ; 2 @,@ 100 mi ) at a speed of 10 @.@ 5 knots ( 19 @.@ 4 km / h ; 12 @.@ 1 mph ) . For long @-@ distance travel , Re d 'Italia was fitted with three masts and was barque @-@ rigged . 
