sates in part:
... those ships were planned with commerce war in mind, therefore diesel engines were selected instead of the usual high pressure steam engine used by the German navy in those days.
This seems rather odd to me if possible. For one thing the H class battleships look like a fair amount of over kill for commerce raiding. So any idea where this came from? Was it the main factor or were the Germans disenchanted with their high pressure systems already and this was an excuse or at only part of the rational?