Guglielmo Marconi

Ship ClassMarconi-class Submarine
Hull NumberMN
Launched27 Jul 1939
Commissioned2 Feb 1940
Sunk28 Oct 1941
Displacement1,214 tons standard; 1,510 tons submerged
Length251 feet
Beam22 feet
Draft16 feet
MachineryTwo CRDA diesel engines, two Marelli electric motors
Speed18 knots
Range2,900nm at 17 knots surfaced, 10,500nm at 8 knots surfaced, 8nm at 8 knots submerged, 110nm at 3 kno
Armament4x533mm bow torpedo tubes, 4x533mm stern torpedo tubes, 1x100mm/47cal gun, 4x13.2mm machine guns
Submerged Speed8.2 knots


ww2dbaseSubmarine Guglielmo Marconi was completed in Feb 1940. On her first war patrol, she sank British destroyer HMS Escort in the western Mediterranean Sea in Jul 1940. Transiting the Strait of Gibraltar in Sep 1940, she sank Spanish fishing boat Almirante Jose de Carranza in the Atlantic Ocean before arriving at Bordeaux, France at the end of the month to join German submarines in attacking Allied shipping in the Atlantic Ocean. Her third war patrol saw her sinking the already damaged Swedish freighter Vingaland in the North Atlantic. Her fifth war patrol was her most fruitful, sinking British tanker Cairndale in May 1941, British cargo ship Baron Lovat in Jun 1941, and Swedish cargo ship Taberg in Jun 1941. She became missing some time on or after 28 Oct 1941 and was never seen again.

ww2dbaseSource: Wikipedia

Last Major Revision: Mar 2023

Submarine Guglielmo Marconi (MN) Interactive Map

Guglielmo Marconi Operational Timeline

27 Jul 1939 Guglielmo Marconi was launched.
2 Feb 1940 Guglielmo Marconi was completed.
8 Jul 1940 Italian submarine Marconi torpedoed and damaged destroyer HMS Escort southwest of Minorca, Balearic Islands, in the Mediterranean Sea, killing 2 and wounding 13; HMS Escort would sink about 160 kilometers or 100 miles east of Gibraltar while under tow by destroyer HMS Forester.
11 Sep 1940 Guglielmo Marconi transited the Strait of Gibraltar into the Atlantic Ocean.
29 Sep 1940 Guglielmo Marconi arrived at Bordeaux, France.
9 Nov 1940 Swedish ship Vingaland, damaged on the previous day by German bombers west of Ireland, was sunk by Italian submarine Guglielmo Marconi; the 19 survivors were picked up by British ship Danae II.
30 May 1941 Guglielmo Marconi sank British tanker Cairndale 200 kilometers (120 miles) west of Gibraltar; four were killed.
6 Jun 1941 Italian submarine Guglielmo Marconi sank British cargo ship Baron Lovat (the entire crew survived) and Swedish ship Taberg (15 killed) 350 miles west of Gibraltar.
28 Oct 1941 Guglielmo Marconi disappeared in the Atlantic Ocean on or after this date.

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