 It was enough that the design team decided that it would not be prudent to use an all-diesel arrangement; instead, a hybrid diesel-steam turbine propulsion plant was to be used.The change allowed the central armored citadel to be reduced by and the aft beam to be lowered by .Although plans were not finalized, the third battlecruiser, "Q", was ordered from Germaniawerft in Kiel on 8 August 1939.