Type IX U-Boat

The Type IX U-Boat was a type of German submarines used by the Kriegsmarine in World War II. With the first one (U-37) being commissioned in 1938, a total of 283 Type IX U-Boats were completed. It was designed by German engineer Heinrich Müller, being conceived as a long range submarine to operate in the Atlatic Ocean, with some of them even sailing off the Canadian and American coasts.  It was 8 m longer than its predecessor, the Type VII. The first one to be launched, the U-37 (Type IXA variant), was among the most successful German U-Boat in the entire war, sinking a total of 55 enemy ships, which implied a total of 203,000 tons of ships, both merchant and warships. It was followed in success by another submarine of its type (IXB version), the U-124, which sank 48 Allied ships that were part of the vital supplylines to Great Britain during the first years of the war.


The Type IX was armed with 22 torpedoes, fired through six 533-mm torpedo tubes, four bow and two aft. It also had at its disposal one 105-mm naval cannon and a 30-mm AA gun mounted on its deck, which were used when the submarine was on the surface, and twenty mines.

Power plant

It was powered by two MAN M9V40/46 diesel engines, that delivered 4,400 horsepower, and by two SSW GU345/34 electrical motors (1,000 hp), backed up by 6 Daimler-Benz MB501, 20-cylinder diesel engines.


Type: attack submarine

Length: 75.5 m

Beam: 6.8 m

Draft: 4.7 m

Displacement: 1,178 tons (submerged)

Maximum speed: 18.2 knots (surfaced), and 7.3 knots (submerged)

Range: 8,700 nautical miles

Crew: 56 sailors and officers





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Thor is Carlos Benito Camacho, the manager and writer of this blog.