An early commitment offers more years for diesel-engine development before later cruisers and capital ships are laid down. A slower transition through diesel-steam designs may be less risky, but leaves a mixed fleet and delays concentration on the new machinery. Beginning with Königsberg would move the decision back into the mid-1920s and could reshape the cruiser's machinery spaces and armament arrangement. Removing steam-plant and funnel demands might permit a fourth turret while leaving the aft deck open for mines. An ABX-style gun layout is one possible way to preserve that minelaying space, although the exact machinery arrangement remains an unresolved design problem. This analysis favors the earlier route while acknowledging the engineering complexity of multiple engines and shared gearing.
Notable Point · 37:51-45:05
Choosing an early diesel-development path
The counterfactual hinges on whether Germany commits from the Königsberg class onward or learns through the later Leipzig mixed-propulsion route.