Italian submarines in World War Two

Italian Commanders


Alberto Avogadro di Cerrione

Born  27 Apr 1905Turin

Ranks

  C.C.Capitano di Corvetta

Decorations

25 Jun 1943 Medaglia di bronzo al valore militare

Career information

TRICHECO (C.C. C.O.): from 05.01.1940 to 14.11.1940.
DELFINO (C.C. C.O.): from 14.11.1940 to 14.01.1942.
TITO SPERI (C.C. resp.): from 18.05.1941 to 04.06.1941 (at Pola while DELFINO was refitting at Fiume).
TRICHECO (C.C. resp.): from 15.01.1942 to 25.01.1942.
DELFINO (C.C. resp.): from 27.01.1942 to 31.01.1943.
From 01.02.1943, put on availability at MARICOSOM and became C.do in Capo Squadra Smg.

Commands listed for Alberto Avogadro di Cerrione


Submarine Type Rank From To
Tricheco (TR)Ocean goingC.C.5 Jan 194014 Nov 1940
Tito Speri (TS)Ocean goingC.C.18 May 19414 Jun 1941
Delfino (DL)Ocean goingC.C.14 Nov 194014 Jan 1942
Tricheco (TR)Ocean goingC.C.15 Jan 194225 Jan 1942
Delfino (DL)Ocean goingC.C.27 Jan 194231 Jan 1943

Ships hit by Alberto Avogadro di Cerrione

No ships hit by this Commander.

War patrols listed for Alberto Avogadro di Cerrione

 SubmarineDateTimePortArr. dateArr. timeArr. portMilesDescription
1.Tricheco (TR)9 Jun 19401130Leros14 Jun 19400815Leros421Patrolled within 10 miles from 075° - Punta Castello (Scarpanto) - 18 miles. Uneventful.

2.Tricheco (TR)18 Jun 19401435Leros24 Jun 19401415Leros464,5Patrolled off north coast of Crete in 35°40'N, 24°50'E.

3.Tricheco (TR)3 Jul 19401950Leros16 Jul 19400630Leros1224Patrolled on Alexandria-Crete route in 32°54'N, 28°28'E on a line with Beilul and Velella.

4.Tricheco (TR)5 Aug 19402055Leros17 Aug 19400520Leros853Patrolled in Doro Channel. Sighted only neutral vessels.

5.Tricheco (TR)30 Sep 19401600Leros8 Oct 19401530Leros959Patrolled south of Kaso Straits for Operation C.V. (reinforcements for the Dodecanese).
  7 Oct 19401800
(0) Kaso Straits
During dinner, there was a fight between two ratings and one was severely injured. C.C. Alberto Avogrado di Cerrione Trotti Bentivoglio decided to abort patrol and return to base.
  8 Oct 1940012135° 30'N, 27° 18'EAn unknown submarine was sighted and Tricheco fired two torpedoes from her bow tubes in quick succession at a distance of just 600 metres. The first missed but the second was a direct hit. Unfortunately the target was the submarine Gemma who was returning from patrol and C.C. Avogrado Di Cerione was unaware of her presence. Of her crew, none survived, five officer and forty ratings perished.

Tricheco (TR)22 Oct 19400805Leros22 Oct 19401202Leros27Exercises.

Tricheco (TR)26 Oct 19400955Leros26 Oct 19401210Leros6Exercises.

Tricheco (TR)27 Oct 19400740Leros27 Oct 19400930Leros4,5Exercises.

6.Tricheco (TR)27 Oct 19401145Leros7 Nov 19400748Leros1176Patrolled between 32°20'N and 33°00'N, and between 27°00'E and 28°00'E. Uneventful, heard only distant explosions.

7.Delfino (DL)24 Nov 19400030Leros1 Dec 19400810Leros598Patrolled north of Aegean, off Tinos Island.
  28 Nov 19401320
(0) Off Cape Drepano.
The submarine heard two noises, with hydrophones. These were believed to be from two enemy submarines, but none were sighted.
  29 Nov 1940183639° 09'N, 25° 01'E
(0) 175° - Cape Tripti - 18 miles.
A submarine of the KATSONIS class was sighted at a distance of 800-1,000 metres, but she dived before an attack could be mounted. No Hellenic submarine operated in the area.
  29 Nov 19402320
2330 (e)
38° 12'N, 25° 01'E
(e) 38° 12'N, 25° 04'E
(0) 102° - Kalojeri Reef - 12 miles.
The submarine was surfaced when a Greek convoy of two steamers, escorted by three destroyers, was sighted proceeding at a speed of 10 to 12 knots. Two stern torpedoes (one 533mm and one 450mm) were fired from a distance of 1,200 metres at one of the destroyers and Delfino dived. Two explosions were heard and a destroyer claimed sunk. The convoy included the destroyers Spetsai, Vasilissa Olga, Kondouriotis, Vasilefs Georgios (Leader) escorting the merchants Asimina Baika, Sonia, Marit Maersk and Heron. They were heading in ballast to Chios and Lesbos in order to embark mobilization personnel and material, except Heron who was on a commercial route to Smyrna. The torpedoes passed close to Spetsai and the submarine was spotted on the surface before diving. The depth charges of Spetsai failed to detonate.

8.Delfino (DL)3 Jan 19412000Leros11 Jan 19410830Leros640Patrolled between Cape Sidero and Suda or zone C for CESARE West.
  6 Jan 19412200
(0) Off Suda Bay.
A destroyer squadron was sighted at a distance of 10,000 metres but passed out of range.

Delfino (DL)1 Feb 19411815Leros6 Feb 19411030Brindisi827Passage Leros-Brindisi. Uneventful.

Delfino (DL)8 Feb 19411200Brindisi9 Feb 19411700Pola362Passage Brindisi-Pola.
  9 Feb 1941100043° 07'N, 14° 05'EAn Italian merchant vessel was seen approaching on an opposite course from a distance of 6,000 metres. This was Stamira (1,463 GRT, built 1929). Despite repeated signals from Delfino identifying herself, the merchant ship turned back and apparently fired a round at the submarine, although the fall of shot was not observed. Marina Ancona was criticized for failing to warn Stamira of the possible encounter with an Italian submarine.

Delfino (DL)12 Feb 19410730Pola12 Feb 19411300Fiume59Passage Pola-Fiume for refit.

Delfino (DL)31 Mar 19411630Fiume1 Apr 19410810PolaPassage Fiume-Pola.

Delfino (DL)5 Apr 19411430Pola6 Apr 19410730VenicePassage Pola-Venice, towed by the tug Tenace, and escorted in the last leg by the torpedo boat Audace.

Delfino (DL)19 Apr 19410955Venice20 Apr 19411445FiumePassage Venice-Fiume with the tug Marittimo for refit.

Tito Speri (TS)19 May 19410800Pola19 May 19411915Pola77Exercises.

Tito Speri (TS)20 May 19410800Pola20 May 19411920Pola67Exercises with the submarine Narvalo, escorted by the auxiliary Morrhua.

Tito Speri (TS)22 May 19410730Pola23 May 19410215Pola96Exercises.

Tito Speri (TS)24 May 19410730Pola24 May 19411845Pola75Exercises with the submarines Narvalo, Pisani, Bausan and Toti, escorted by the auxiliaries San Giorgio, Jadera and Morrhua.

Tito Speri (TS)28 May 19410730Pola28 May 19411915Pola72Exercises.

Tito Speri (TS)30 May 19411045Pola31 May 19410204Pola94Exercises.

Tito Speri (TS)2 Jun 19410755Pola2 Jun 19411730Pola76Exercises.

Tito Speri (TS)4 Jun 19410800Pola5 Jun 19410215Pola86,2Exercises with the submarine Bausan, escorted by the torpedo boat Cantore and the auxiliary San Giorgio.

Tito Speri (TS)6 Jun 19410749Pola6 Jun 19411915Pola97Exercises.

Tito Speri (TS)7 Jun 19410800Pola7 Jun 19411300Pola52,1Exercises.

Tito Speri (TS)9 Jun 19410740Pola9 Jun 19411815Pola68Exercises.

Delfino (DL)30 Jun 19410925Fiume30 Jun 19411715Fiume40Exercises.

Delfino (DL)4 Jul 19410910Fiume4 Jul 19411530Fiume26Exercises.

Delfino (DL)5 Jul 19411520Fiume5 Jul 19411745Fiume4Exercises.

Delfino (DL)7 Jul 19411045Fiume7 Jul 19411715Pola59Passage Fiume-Pola.

Delfino (DL)14 Jul 19410845Pola14 Jul 19411740Pola22Exercises.

Delfino (DL)17 Jul 19410804Pola17 Jul 19411550Pola53,5Exercises.

Delfino (DL)19 Jul 19410950Pola19 Jul 19411505Pola82,2Exercises escorted by the auxiliary Jadera.

Delfino (DL)22 Jul 19410830Pola24 Jul 19410720Taranto501Passage Pola-Taranto.

9.Delfino (DL)27 Jul 19411330Taranto6 Aug 19411450Taranto2142,7Patrolled off Tobruk via Point S (37°40'N, 18°20'E), then to area between 32°20'N and 32°40'N, and between 24°40'E and 25°00'E. From the morning of 31st July to 2100 hours on 8th August was to operate between 32°00'N and 32°20'N, and between 24°40'E and 25°00'E [but returned earlier] via Point G (34°15'N, 23°20'E) and Point S (37°40'N, 18°20'E).
  1 Aug 1941232332° 12'N, 24° 46'E
(e) 32° 20'N, 24° 59'E
A Sunderland was observed approaching under the moonlight and the submarine machine guns opened fire and managed to shoot it down. This was Sunderland 'U' (L2166) of 230 Squadron based at Aboukir (east of Alexandria), which managed to drop six depth charges, but they caused no damage. The submarine closed the crash site and rescued four survivors (Flight Lieutenant Engert Brand, Flying Officer Raymond Edwin Packington, Sergeant William Henry Yates and Sergeant William Murray White), eight men were missing.
  2 Aug 19410055
(0) Off Tobruk.
Four destroyers were observed, apparently on a systematic A/S search. The submarine submerged and escaped. These were HMS Jervis (D.14), HMS Jackal, HMS Kingston and HMAS Nizam which had been sent out to search for a reported submarine.

Delfino (DL)1 Sep 19411300Taranto1 Sep 19411900Taranto32Exercises.

Delfino (DL)8 Sep 19410840Taranto8 Sep 19411620Taranto46,5Exercises.

Delfino (DL)11 Sep 19411030Taranto12 Sep 19411400Messina278Passage Taranto-Messina.

Delfino (DL)13 Sep 19411520Messina14 Sep 19411100Trapani193,5Passage Messina-Trapani.

Delfino (DL)20 Sep 19410820Trapani20 Sep 19411145Trapani27Exercises with the submarine Squalo, escorted by the auxilairy Petsamo.

10.Delfino (DL)24 Sep 19411320Trapani2 Oct 19410910Trapani902Patrolled southwest of Sardinia and Cape Bon between 37°00'N and 37°20'N, and between 11°00'E and 11°05'E. From 27th September, moved to area between 37°45'N and the coast, and between 07°20'E and 07°40'E.
  27 Sep 19410710Two light cruisers escorted by destroyers were seen at 12,000 metres, but passed out of range.
  29 Sep 19411130A destroyer squadron steering 340°, was observed at a distance of 6-7,000 metres but no action could be taken.

11.Delfino (DL)18 Oct 19410935Trapani20 Oct 19410830Trapani353Sailed for patrol southeast of Pantelleria, between 36°30'N and 36°40'N, and between 12°20'E and 12°40'E, but turned back due to defects.

Delfino (DL)21 Oct 19411745Trapani22 Oct 19411000Messina183Passage Trapani-Messina.

12.Delfino (DL)8 Nov 19410900Messina11 Nov 19411500Messina410Patrolled via Cape Passero, southeast of Malta, between 34°10 N and 34°50'N, and between 16°00'E and 16°20'E. Uneventful.

13.Delfino (DL)20 Nov 19411650Messina28 Nov 19411541Trapani865Patrolled southeast of Cape Passero, between 36°00'N and 36°20'N, and between 15°40'E and 16°00'E, on a patrol line with Settembrini and Tricheco. Uneventful, heard only H.E. Patrol interrupted because of leaks.

Delfino (DL)1 Dec 19410905Trapani1 Dec 19411150Trapani16,5Exercises, escorted by the tug Montecristo.

Delfino (DL)13 Dec 19410855Trapani13 Dec 19411310Trapani26,8Exercises, escorted by the tug Levanzo.

14.Delfino (DL)3 Jan 19420645Trapani9 Jan 19420700Trapani986Patrol line off Malta, between 34°30'N and 34°50'N, and between 15°40'E and 16°20'E, on a northeast-southeast axis with Platino, Onice and Alagi. Left patrol on 8th January. The submarine was twice alerted by Rome of the presence of an enemy submarine in her area, but sighted nothing. Ran aground in heavy weather during the return trip.
  8 Jan 1942024537° 39'N, 12° 32'EReturning to base in heavy weather, Delfino ran aground on a sand bottom. The submarine managed to free herself by her own means.

Tricheco (TR)17 Jan 19420930Augusta17 Jan 19421200AugustaExercises, escorted by the auxiliary Trau.

Tricheco (TR)18 Jan 19420910Augusta18 Jan 19421045AugustaExercises.

Tricheco (TR)23 Jan 19420945Augusta23 Jan 19421630MessinaPassage Augusta-Messina.

Delfino (DL)28 Jan 19420900Trapani28 Jan 19421145Trapani17Exercises, escorted by the auxiliary Nasello.

Delfino (DL)31 Jan 19421449Trapani31 Jan 19421800Trapani17Exercises.

15.Delfino (DL)10 Feb 19421710Trapani11 Feb 19420545Trapani106Sailed for patrol 20 miles north of Cape Blanc, but encountered bad weather which spilled acid from her batteries and forced her to turn back.

Delfino (DL)19 Feb 19421530Trapani21 Feb 19420045Crotone356Passage Trapani-Crotone.

Delfino (DL)22 Feb 19420550Crotone24 Feb 19420815Pola494Passage Crotone-Pola. Sighted only Italian ships. Assigned to submarine school at Pola.

Delfino (DL)3 Mar 19421250Pola3 Mar 19421850Pola16Exercises.

Delfino (DL)5 Mar 19420815Pola5 Mar 19421400Pola15Exercises.

Delfino (DL)6 Mar 19421245Pola6 Mar 19421735Pola3,5Exercises.

Delfino (DL)7 Mar 19420820Pola7 Mar 19421415Pola16Exercises.

Delfino (DL)10 Mar 19420825Pola10 Mar 19421425Pola16,5Exercises.

Delfino (DL)12 Mar 19421246Pola12 Mar 19421845Pola20Exercises.

Delfino (DL)14 Mar 19420815Pola14 Mar 19421430Pola19Exercises.

Delfino (DL)17 Mar 19421335Pola17 Mar 19421915Pola19Exercises.

Delfino (DL)2 Apr 19421320Pola2 Apr 19421905Pola24Exercises.

Delfino (DL)6 Apr 19420820Pola6 Apr 19421410Pola21Exercises, escorted by the auxiliary Grado.

Delfino (DL)9 Apr 19421240Pola9 Apr 19421900Pola21Exercises.

Delfino (DL)11 Apr 19421245Pola11 Apr 19421750Pola26Exercises.

Delfino (DL)15 Apr 19421258Pola15 Apr 19421845Pola27Exercises.

Delfino (DL)20 Apr 19421250Pola20 Apr 19421850Pola27Exercises.

Delfino (DL)24 Apr 19420820Pola24 Apr 19421435Pola27Exercises.

Delfino (DL)22 Jun 19420905Pola22 Jun 19421520Pola35Exercises.

Delfino (DL)24 Jun 19421330Pola24 Jun 19421820Pola36Exercises.

Delfino (DL)25 Jun 19420555Pola25 Jun 19422020Pola160Exercises.

Delfino (DL)26 Jun 19421315Pola26 Jun 19421820Pola31Exercises.

Delfino (DL)27 Jun 19421030Pola27 Jun 19421235Pola0,5Entered dock?

Delfino (DL)2 Jul 19420800Pola3 Jul 19420050Fiume100Passage Pola-Fiume and exercises.

Delfino (DL)4 Jul 19420830Fiume4 Jul 19421355Fiume18Exercises.

Delfino (DL)7 Jul 19421415Fiume7 Jul 19422300Fiume45Exercises.

Delfino (DL)9 Jul 19421430Fiume10 Jul 19420205Fiume58Exercises.

Delfino (DL)11 Jul 19421645Fiume11 Jul 19422355Fiume40Exercises.

Delfino (DL)13 Jul 19421415Fiume14 Jul 19420255Fiume70Exercises.

Delfino (DL)15 Jul 19421455Fiume16 Jul 19420100Fiume60Exercises.

Delfino (DL)17 Jul 19421425Fiume18 Jul 19420100Fiume65Exercises.

Delfino (DL)21 Jul 19421420Fiume22 Jul 19420105Fiume60Exercises.

Delfino (DL)23 Jul 19420830Fiume23 Jul 19421715Fiume26Exercises.

Delfino (DL)25 Jul 19420845Fiume25 Jul 19421500Fiume25Exercises.

Delfino (DL)27 Jul 19421235Fiume27 Jul 19421540Fiume26Exercises.

Delfino (DL)29 Jul 19421240Fiume30 Jul 19420110Fiume50Exercises.

Delfino (DL)31 Jul 19420030Fiume31 Jul 19420620Fiume140Exercises.

Delfino (DL)4 Aug 19420825Fiume4 Aug 19421405Fiume20Exercises.

Delfino (DL)6 Aug 19421330Fiume6 Aug 19421950Fiume27Exercises.

Delfino (DL)8 Aug 19420825Fiume8 Aug 19421200Fiume11Exercises.

Delfino (DL)10 Aug 19421330Fiume10 Aug 19421900Fiume18Exercises.

Delfino (DL)12 Aug 19421330Fiume13 Aug 19420035Fiume45Exercises.

Delfino (DL)14 Aug 19420800Fiume14 Aug 19421215Fiume28Exercises.

Delfino (DL)18 Aug 19420830Fiume18 Aug 19421800Fiume30Exercises.

Delfino (DL)19 Aug 19422215Fiume20 Aug 19420335Fiume65Exercises.

Delfino (DL)21 Aug 19421143Fiume21 Aug 19421625Fiume65Exercises.

Delfino (DL)22 Aug 19420840Fiume22 Aug 19421155Fiume8Exercises.

Delfino (DL)24 Aug 19421500Fiume24 Aug 19421805Fiume12Exercises.

Delfino (DL)26 Aug 19421525Fiume26 Aug 19422035Fiume14Exercises.

Delfino (DL)28 Aug 19421615Fiume29 Aug 19420030Fiume50Exercises.

Delfino (DL)31 Aug 19421515Fiume1 Sep 19420050Fiume50Exercises.

Delfino (DL)2 Sep 19421445Fiume3 Sep 19420045Fiume65Exercises.

Delfino (DL)4 Sep 19421500Fiume4 Sep 19421930Fiume11Exercises.

Delfino (DL)7 Sep 19421500Fiume8 Sep 19420200Fiume75Exercises.

Delfino (DL)9 Sep 19421500Fiume9 Sep 19422000Fiume12Exercises.

Delfino (DL)11 Sep 19421500Fiume11 Sep 19421925Fiume12Exercises.

Delfino (DL)12 Sep 19421005Fiume12 Sep 19421710Fiume15Exercises.

Delfino (DL)15 Sep 19422000Fiume15 Sep 19422355Fiume40Exercises with the submarine Manara, escorted by the torpedo boat Fortunale.

Delfino (DL)17 Sep 19422000Fiume18 Sep 19420030Fiume45Exercises with the submarine Manara, escorted by the torpedo boat Fortunale.

Delfino (DL)20 Sep 19420335Fiume20 Sep 19420645Fiume12Exercises, escorted by the torpedo boat Fortunale.

Delfino (DL)21 Sep 19421630Fiume21 Sep 19422355Fiume50Exercises with the submarine Manara, escorted by the auxiliary Marcello.

Delfino (DL)23 Sep 19421030Fiume23 Sep 19422355Fiume45,58Exercises with the submarine Manara, escorted by the torpedo boat Audace and the auxiliary Jadera.

Delfino (DL)25 Sep 19421150Fiume25 Sep 19421910Fiume22Exercises with the submarine Manara, escorted by the torpedo boat Audace and the auxiliary Jadera.

Delfino (DL)28 Sep 19420940Fiume28 Sep 19421310Fiume8Exercises with the submarine Manara, escorted by the auxiliary Abbazia.

Delfino (DL)29 Sep 19421136Fiume29 Sep 19422327Fiume45Exercises with Manara, escorted by the gunboat Cattaro.

Delfino (DL)30 Sep 19421050Fiume30 Sep 19422345Fiume50Exercises with Manara, escorted by the gunboat Cattaro.

Delfino (DL)2 Oct 19421630Fiume2 Oct 19421645Fiume3Exercises.

Delfino (DL)10 Oct 19421145Fiume10 Oct 19421200Fiume3Exercises.

Delfino (DL)12 Oct 19420955Fiume12 Oct 19422210Fiume40Exercises.

Delfino (DL)13 Oct 19421210Fiume13 Oct 19421840Fiume25Exercises.

Delfino (DL)15 Oct 19421210Fiume15 Oct 19422230Fiume45Exercises, escorted by the torpedo boat Insidioso.

Delfino (DL)16 Oct 19421020Fiume16 Oct 19422400Fiume50Exercises.

Delfino (DL)19 Oct 19421215Fiume19 Oct 19422125Fiume35Exercises with the submarines Manara and Jalea, escorted by the torpedo boat Insidioso.

Delfino (DL)21 Oct 19421225Fiume21 Oct 19422215Fiume48Exercises.

Delfino (DL)23 Oct 19421150Fiume23 Oct 19422120Fiume40Exercises.

Delfino (DL)26 Oct 19420902Fiume26 Oct 19421820Fiume23Exercises.

Delfino (DL)28 Oct 19421030Fiume28 Oct 19422043Fiume41Exercises.

Delfino (DL)3 Nov 19420820Fiume5 Nov 19421400Taranto588Passage Pola-Taranto to resume operations, escorted by the torpedo boat Insidioso until 1420 hours on 3rd November.

Delfino (DL)12 Nov 19420900Taranto12 Nov 19421100Taranto9Exercises.

16.Delfino (DL)13 Nov 19421130Taranto16 Nov 19421407Buerat El SunSupply mission to Buerat El Sun (70.2 tons of German ammunition).
  14 Nov 19420530An unidentified ship was seen at 2,000 metres and the submarine prudently dived.
  16 Nov 1942072032° 00'N, 15° 30'E
(0) Approximately.
An Italian steamer escorted by the torpedo-boat Orsa was seen at a distance of 2,000 metres and recognition signals were exchanged at 0745 hours (note: the Orsa report does not mention the presence of a steamer or that she encountered the submarine).

17.Delfino (DL)17 Nov 19420220Buerat El Sun21 Nov 19421500Taranto1508Return trip from supply mission.
  18 Nov 19421400An enemy aircraft was sighted and the submarine dived.
  18 Nov 19421555Two enemy aircraft were sighted and the submarine dived.
  19 Nov 19421052
(0) Very approximately 90-100 miles east of Malta.
The submarine was requested to locate the crew of an aircraft, which had been forced down at 0925 hours in the Italian Grid 9371. The submarine turned back but found nothing and at 1444 hours was ordered to resume her trip home.

Delfino (DL)5 Dec 19420825Taranto5 Dec 19421310Taranto23Trials.

Delfino (DL)6 Dec 19420800Taranto6 Dec 19421510Taranto50Escorted a submarine or trials?

18.Delfino (DL)9 Dec 19421100Taranto12 Dec 19420700Buerat El SunSupply mission to Buerat El Sun (61.3 tons: 21.8 tons of German petrol, 1.5 ton of lubricant oil and 38 tons of German ammunition).
  11 Dec 19420445An unknown aircraft flying toward Delfino was sighted and the submarine dived.

19.Delfino (DL)12 Dec 19421515Buerat El Sun15 Dec 19421620Taranto1215Return trip from supply mission [mileage is for round trip].
  14 Dec 19420020-0110An Italian hospital ship was seen on an opposite course.
  15 Dec 19421120-1220
(0) Near Taranto.
An Italian convoy (consisting of a tanker and tug escorted by a torpedo-boat and aircraft) was encountered and recognition signals were exchanged. These were most probably Unione escorted by the torpedo boat Antonio Mosto and the tug Titiano proceeding from Taranto to Messina.

20.Delfino (DL)29 Dec 19421040Taranto2 Jan 19430900Tripoli678Supply mission to Libya [75.5 tons: 20 tons of German petrol, 16 tons of lubricant oil, 9.5 on of Italian and 30 tons of German ammunition].
  29 Dec 1942145040° 40'N, 17° 11'EA derelict mine was sunk by machine gun fire.
  1 Jan 19430315Two destroyers were sighted at 3,000 metres and the submarine dived.
  1 Jan 19432140A Hospital ship was encountered which turned out to be Gradisca and they proceeded in company to Tripoli.

21.Delfino (DL)2 Jan 19431600Tripoli6 Jan 19431020Taranto680Return trip from supply mission.
  5 Jan 19431130-1250
(0) Probably about 50 miles from Cape Colonne.
A balloon of the incendiary type was shot down by machine gun fire.
  6 Jan 19430750
(0) A few miles off Taranto.
A balloon of the incendiary type was shot down by machine gun fire.

154 entries. 142 total patrol entries (21 marked as war patrols) and 25 events.

Italian Commanders

Italian Submarines