 Durand @-@ Viel 's first battlecruiser design , " A " , was built on a displacement of 27 @,@ 500 t ( 27 @,@ 100 long tons ; 30 @,@ 300 short tons ) . The hull was 210 meters ( 690 ft ) long at the waterline , with a beam of 27 m ( 89 ft ) at the waterline and an average draft of 8 @.@ 7 m ( 29 ft ) . The ships would have been equipped with four sets of direct drive turbines rated at 74 @,@ 000 shaft horsepower ( 55 @,@ 000 kW ) powered by twenty @-@ four double @-@ ended Belleville boilers that burned both coal and oil . The ships ' top speed was to have been 27 knots ( 50 km / h ; 31 mph ) . The ships would have been supplied with 1 @,@ 810 t ( 1 @,@ 780 long tons ; 2 @,@ 000 short tons ) of coal and 1 @,@ 050 t ( 1 @,@ 030 long tons ; 1 @,@ 160 short tons ) of fuel oil . The ships could have cruised for 3 @,@ 500 nautical miles ( 6 @,@ 500 km ; 4 @,@ 000 mi ) at 16 kn ( 30 km / h ; 18 mph ) , with enough fuel for an additional six hours for combat speeds . 
