T class and Type IX tradeoffs

The German Type IX and British T class were shaped by different operational requirements. The Type IX offered greater surface speed and range, six torpedo tubes, and a large deck gun suited to long-distance commerce raiding. The T class accepted roughly 8,000 nautical miles of surface range and lower surface speed in exchange for better submerged speed and a much larger initial torpedo spread. Britain's global basing network made that exchange more tolerable, while Germany needed an oceanic predator able to travel far from home. Both boats suited their own navies, and ranking them without first comparing their intended missions obscures the point of each design.