Italian submarine Marcantonio Colonna

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Vettore Pisani on the surface
History
NameMarcantonio Colonna
NamesakeMarcantonio Colonna
BuilderCantiere Navale Triestino, Trieste
Laid down3 December 1925
Launched26 December 1927
Completed10 July 1929
Decommissioned16 April 1942
FateScrapped, 1943
General characteristics
Class and typePisani-class submarine
Displacement
  • 866 long tons (880 t) surfaced
  • 1,040 long tons (1,057 t) submerged
Length68.2 m (223 ft 9 in)
Beam6.09 m (20 ft)
Draught4.93 m (16 ft 2 in)
Installed power
  • 3,000 
    kW
    ) (diesels)
  • 1,100 hp (820 kW) (electric motors)
Propulsion
Speed
  • 15 knots (28 km/h; 17 mph) surfaced
  • 8.2 knots (15.2 km/h; 9.4 mph) submerged
Range
  • 5,000 nmi (9,300 km; 5,800 mi) at 8 knots (15 km/h; 9.2 mph)
  • 70 nmi (130 km; 81 mi) at 4 knots (7.4 km/h; 4.6 mph)
Test depth90 m (300 ft)
Complement48
Armament

Marcantonio Colonna was one of four

decommissioned in 1942 and scrapped
the following year.

Design and description

Right-profile line drawing of the Pisani class

Designed in parallel with the Mameli-class submarines, the Pisani class was larger accommodate more fuel and give them more range. They displaced 880 metric tons (866 long tons) surfaced and 1,057 metric tons (1,040 long tons) submerged. The submarines were 68.2 meters (223 ft 9 in) long, had a beam of 6.09 meters (20 ft) and a draft of 4.93 meters (16 ft 2 in).[1] They had an operational diving depth of 90 meters (300 ft).[2] Their crew numbered 48 officers and enlisted men.[1]

For surface running, the boats were powered by two 1,500-

propeller shaft. When submerged each propeller was driven by a 550-horsepower (410 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.[2] On the surface, the Pisani class had a range of 5,000 nautical miles (9,300 km; 5,800 mi) at 8 knots (15 km/h; 9.2 mph);[1] submerged, they had a range of 70 nmi (130 km; 81 mi) at 4 knots (7.4 km/h; 4.6 mph).[2]

The boats were armed with six 53.3-centimeter (21 in)

Construction and career

Marcantonio Colonna was

laid down by Cantiere Navale Triestino in their Trieste shipyard on 3 December 1925, launched on 26 November 1927, and completed on 10 July 1929.[3]

Notes

  1. ^ a b c d Chesneau, p. 307
  2. ^ a b c Bagnasco, p. 141
  3. ^ Fraccaroli, p. 127

References

  • Bagnasco, Erminio (1977). Submarines of World War Two. Annapolis, Maryland: Naval Institute Press. .
  • Brescia, Maurizio (2012). Mussolini's Navy: A Reference Guide to the Regina Marina 1930–45. Annapolis, Maryland: Naval Institute Press. .
  • Chesneau, Roger, ed. (1980). Conway's All the World's Fighting Ships 1922–1946. Greenwich, UK: Conway Maritime Press. .
  • .
  • Frank, Willard C. Jr. (1989). "Question 12/88". Warship International. XXVI (1): 95–97. .
  • .

External links