 Durand @-@ Viel 's second battlecruiser design , " B " , was built on the same displacement as the first design . The heavier weight of the increased main battery was offset by a reduction in the armor protection for the secondary guns and improved performance of the ship 's propulsion system . The hull was 208 meters ( 682 ft ) long at the waterline , with a beam of 27 m at the waterline and an average draft of 8 @.@ 7 m . Two engine systems were considered : four direct drive turbines rated at 63 @,@ 000 shp ( 47 @,@ 000 kW ) or four geared turbines rated at 80 @,@ 000 shp ( 60 @,@ 000 kW ) . Steam was provided by eighteen Belleville boilers , ten of which that burned both coal and oil , and eight that were oil @-@ fired only . The ships ' top speed was to have been 26 knots ( 48 km / h ; 30 mph ) for the first variant and 27 knots for the second . The ships would have been supplied with the same fuel allotment as the " A " design , with the same radius of action as well . 
