What was the range of the U Boat?

The range of a U-boat varied depending on the type and configuration. Generally, early U-boats had a surface range of about 8,000 nautical miles at a speed of 10 knots, while later models, like the Type VII, could cover around 6,000 nautical miles at the same speed. When submerged, their range was significantly reduced, typically around 100 nautical miles at a speed of 4 knots. Overall, the operational range allowed U-boats to patrol vast areas of the Atlantic during World War II.