4. T Class
Known also as the Triton Class, these boats formed the backbone of the British submarine force during World War II.
Displacing about 1,500 tons, T Class subs packed a heavy punch of 10 torpedo tubes. However, they all fired forward, compared to other subs that could fire torpedoes with both bow and stern tubes.
T-class boats exacted a heavy toll of Axis shipping supplying Rommel's Afrika Korps, but suffered heavy losses in the narrow, shallow waters of the Mediterranean.
PUZZLES: Put together these submarines.
QUIZ: Prove your sub IQ with this Submarine Quiz.