 The ship was fitted with a horizontal return @-@ connecting @-@ rod steam engine built by the <unk> Works of Saint Petersburg . It drove a single two @-@ bladed propeller using steam that was provided by an unknown number of rectangular boilers . During the ship 's sea trials , the engine produced a total of 3 @,@ 088 indicated horsepower ( 2 @,@ 303 kW ) and gave the ship a maximum speed of 13 @.@ 95 knots ( 25 @.@ 84 km / h ; 16 @.@ 05 mph ) . The ship carried a maximum of 400 long tons ( 410 t ) of coal , but her endurance is unknown . She was schooner @-@ rigged with three masts . 
