Italian submarine
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| History |
|---|
 Kingdom of Italy |
|---|
| Name | Medusa |
| Namesake | Medusa |
| Builder | Cantieri Riuniti dell'Adriatico, Monfalcone |
| Laid down | 1929–1930 |
| Launched | 10 December 1931 |
| Completed | 1932 |
| Fate | Sunk, 30 January 1942 |
| General characteristics |
|---|
| Class and type | Argonauta-class submarine |
| Displacement |
- 660 t (650 long tons) (surfaced)
- 813 t (800 long tons) (submerged)
|
| Length | 61.5 m (202 ft) |
| Beam | 5.7 m (18 ft 8 in) |
| Draft | 4.7 m (15 ft 5 in) |
| Installed power |
- 1,500 bhp (1,100 kW) (diesels)
- 800 hp (600 kW) (electric motors)
|
| Propulsion | |
| Speed |
- 14 knots (26 km/h; 16 mph) (surfaced)
- 8 knots (15 km/h; 9.2 mph) (submerged)
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| Range |
- 5,000 nmi (9,300 km; 5,800 mi) at 8 knots (15 km/h; 9.2 mph) (surfaced)
- 110 nmi (200 km; 130 mi) at 3 knots (5.6 km/h; 3.5 mph) (submerged)
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| Test depth | 80 m (260 ft) |
| Armament | |
Medusa was one of seven Argonauta-class submarines built for the Regia Marina (Royal Italian Navy) during the early 1930s.
Design and description
The Argonauta class was derived from the earlier Squalo-class submarines.[1] They displaced 660 metric tons (650 long tons) surfaced and 813 metric tons (800 long tons) submerged. The submarines were 61.5 meters (201 ft 9 in) long, had a beam of 5.7 meters (18 ft 8 in) and a draft of 4.7 meters (15 ft 5 in).[2] They had an operational diving depth of 80 meters (260 ft).[1] Their crew numbered 44 officers and enlisted men.[2]
For surface running, the boats were powered by two 750-brake-horsepower (559 kW) diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 400-horsepower (298 kW) electric motor. They could reach 14 knots (26 km/h; 16 mph) on the surface and 8 knots (15 km/h; 9.2 mph) underwater.[1] On the surface, the Settembrini class had a range of 5,000 nautical miles (9,300 km; 5,800 mi) at 8 knots (15 km/h; 9.2 mph);[2] submerged, they had a range of 110 nmi (200 km; 130 mi) at 3 knots (5.6 km/h; 3.5 mph).[1]
The boats were armed with six 53.3-centimeter (21 in) torpedo tubes, four in the bow and two in the stern for which they carried a total of 12 torpedoes. They were also armed with a single 102-millimeter (4 in) deck gun forward of the conning tower for combat on the surface. Their anti-aircraft armament consisted of two single 13.2-millimeter (0.52 in) machine guns.[2]
Construction and career
Medusa was laid down by Cantieri Riuniti dell'Adriatico at their Monfalcone shipyard in 1929–1930, launched on 10 December 1931 and completed the following year.[2]
Medusa was torpedoed and sunk on 30 January 1942 in the Adriatic near Promontore, Istria by the submarine HMS Thorn.
