What was the Royal Navy's best submarine design of the Second World War?
Short answerThe U class is the personal favorite, while the V and T classes also had strong but different operational virtues.
NotesThe U and V classes are personal favorites, while the T class had a formidable forward torpedo battery. Had the T boats operated as planned in the South China Sea, their ambush design could have produced many kills. The personal choice of the U class is therefore not a claim that one design dominated every mission. The comparison shows how patrol environment and intended tactics determine what 'best' means.