Italian submarine Santorre Santarosa
Italian submarine
Santorre di Santarosa was one of four Bandiera-class submarines built for the Regia Marina (Royal Italian Navy) during the late 1920s. Completed in 1929, she played a minor role in the Spanish Civil War of 1936–1939 supporting the Spanish Nationalists.
Design and description
The Bandiera class was an improved and enlarged version of the preceding Pisani-class submarines. They displaced 940 metric tons (925 long tons) surfaced and 1,097 metric tons (1,080 long tons) submerged. The submarines were 69.8 meters (229 ft 0 in) long, had a beam of 7.3 meters (23 ft 11 in) and a draft of 5.26 meters (17 ft 3 in). They had an operational diving depth of 90 meters (300 ft). Their crew numbered 53 officers and enlisted men.
For surface running, the boats were powered by two 1,500-brake-horsepower (1,119 kW) diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 650-horsepower (485 kW) electric motor. They could reach 15 knots (28 km/h; 17 mph) on the surface and 8.2 knots (15.2 km/h; 9.4 mph) underwater.
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