E-boat

E-boat was the Western Allies' designation for the fast attack craft (German: Schnellboot, or S-Boot, meaning "fast boat") of the Kriegsmarine during World War II. The most popular, the S-100 class, were very seaworthy, heavily armed, and fast – capable of sustaining 43.5 knots (80.6 km/h; 50.1 mph) and briefly accelerating to 48 knots (89 km/h; 55 mph). These craft were 35 metres (114' 10") long and 5.1 metres (16' 9"') in beam, half again longer and much sleeker than any of the Allied PT boats.