Italian submarines in World War Two
Italian Commanders
Alberto Avogadro di Cerrione
| Born | 27 Apr 1905 | Turin | |
| Died | 17 May 1965 | (60) | Turin |
| Ranks
Decorations
|
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 going | C.C. | 5 Jan 1940 | 14 Nov 1940 |
| Tito Speri (TS) | Ocean going | C.C. | 18 May 1941 | 4 Jun 1941 |
| Delfino (DL) | Ocean going | C.C. | 14 Nov 1940 | 14 Jan 1942 |
| Tricheco (TR) | Ocean going | C.C. | 15 Jan 1942 | 25 Jan 1942 |
| Delfino (DL) | Ocean going | C.C. | 27 Jan 1942 | 31 Jan 1943 |
Ships hit by Alberto Avogadro di Cerrione
No ships hit by this Commander.War patrols listed for Alberto Avogadro di Cerrione
| Submarine | Date | Time | Port | Arr. date | Arr. time | Arr. port | Miles | Description | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Tricheco (TR) | 9 Jun 1940 | 1130 | Leros | 14 Jun 1940 | 0815 | Leros | 421 | Patrolled within 10 miles from 075° - Punta Castello (Scarpanto) - 18 miles. Uneventful. | |
| 2. | Tricheco (TR) | 18 Jun 1940 | 1435 | Leros | 24 Jun 1940 | 1415 | Leros | 464,5 | Patrolled off north coast of Crete in 35°40'N, 24°50'E. | |
| 3. | Tricheco (TR) | 3 Jul 1940 | 1950 | Leros | 16 Jul 1940 | 0630 | Leros | 1224 | Patrolled on Alexandria-Crete route in 32°54'N, 28°28'E on a line with Beilul and Velella. | |
| 4. | Tricheco (TR) | 5 Aug 1940 | 2055 | Leros | 17 Aug 1940 | 0520 | Leros | 853 | Patrolled in Doro Channel. Sighted only neutral vessels. | |
| 5. | Tricheco (TR) | 30 Sep 1940 | 1600 | Leros | 8 Oct 1940 | 1530 | Leros | 959 | Patrolled south of Kaso Straits for Operation C.V. (reinforcements for the Dodecanese). | |
| 7 Oct 1940 | 1800 | (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 1940 | 0121 | 35° 30'N, 27° 18'E | An 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 1940 | 0805 | Leros | 22 Oct 1940 | 1202 | Leros | 27 | Exercises. | ||
| Tricheco (TR) | 26 Oct 1940 | 0955 | Leros | 26 Oct 1940 | 1210 | Leros | 6 | Exercises. | ||
| Tricheco (TR) | 27 Oct 1940 | 0740 | Leros | 27 Oct 1940 | 0930 | Leros | 4,5 | Exercises. | ||
| 6. | Tricheco (TR) | 27 Oct 1940 | 1145 | Leros | 7 Nov 1940 | 0748 | Leros | 1176 | Patrolled 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 1940 | 0030 | Leros | 1 Dec 1940 | 0810 | Leros | 598 | Patrolled north of Aegean, off Tinos Island. | |
| 28 Nov 1940 | 1320 | (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 1940 | 1836 | 39° 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 1940 | 2320 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 1941 | 2000 | Leros | 11 Jan 1941 | 0830 | Leros | 640 | Patrolled between Cape Sidero and Suda or zone C for CESARE West. | |
| 6 Jan 1941 | 2200 | (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 1941 | 1815 | Leros | 6 Feb 1941 | 1030 | Brindisi | 827 | Passage Leros-Brindisi. Uneventful. | ||
| Delfino (DL) | 8 Feb 1941 | 1200 | Brindisi | 9 Feb 1941 | 1700 | Pola | 362 | Passage Brindisi-Pola. | ||
| 9 Feb 1941 | 1000 | 43° 07'N, 14° 05'E | An 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 1941 | 0730 | Pola | 12 Feb 1941 | 1300 | Fiume | 59 | Passage Pola-Fiume for refit. | ||
| Delfino (DL) | 31 Mar 1941 | 1630 | Fiume | 1 Apr 1941 | 0810 | Pola | Passage Fiume-Pola. | |||
| Delfino (DL) | 5 Apr 1941 | 1430 | Pola | 6 Apr 1941 | 0730 | Venice | Passage Pola-Venice, towed by the tug Tenace, and escorted in the last leg by the torpedo boat Audace. | |||
| Delfino (DL) | 19 Apr 1941 | 0955 | Venice | 20 Apr 1941 | 1445 | Fiume | Passage Venice-Fiume with the tug Marittimo for refit. | |||
| Tito Speri (TS) | 19 May 1941 | 0800 | Pola | 19 May 1941 | 1915 | Pola | 77 | Exercises. | ||
| Tito Speri (TS) | 20 May 1941 | 0800 | Pola | 20 May 1941 | 1920 | Pola | 67 | Exercises with the submarine Narvalo, escorted by the auxiliary Morrhua. | ||
| Tito Speri (TS) | 22 May 1941 | 0730 | Pola | 23 May 1941 | 0215 | Pola | 96 | Exercises. | ||
| Tito Speri (TS) | 24 May 1941 | 0730 | Pola | 24 May 1941 | 1845 | Pola | 75 | Exercises with the submarines Narvalo, Pisani, Bausan and Toti, escorted by the auxiliaries San Giorgio, Jadera and Morrhua. | ||
| Tito Speri (TS) | 28 May 1941 | 0730 | Pola | 28 May 1941 | 1915 | Pola | 72 | Exercises. | ||
| Tito Speri (TS) | 30 May 1941 | 1045 | Pola | 31 May 1941 | 0204 | Pola | 94 | Exercises. | ||
| Tito Speri (TS) | 2 Jun 1941 | 0755 | Pola | 2 Jun 1941 | 1730 | Pola | 76 | Exercises. | ||
| Tito Speri (TS) | 4 Jun 1941 | 0800 | Pola | 5 Jun 1941 | 0215 | Pola | 86,2 | Exercises with the submarine Bausan, escorted by the torpedo boat Cantore and the auxiliary San Giorgio. | ||
| Tito Speri (TS) | 6 Jun 1941 | 0749 | Pola | 6 Jun 1941 | 1915 | Pola | 97 | Exercises. | ||
| Tito Speri (TS) | 7 Jun 1941 | 0800 | Pola | 7 Jun 1941 | 1300 | Pola | 52,1 | Exercises. | ||
| Tito Speri (TS) | 9 Jun 1941 | 0740 | Pola | 9 Jun 1941 | 1815 | Pola | 68 | Exercises. | ||
| Delfino (DL) | 30 Jun 1941 | 0925 | Fiume | 30 Jun 1941 | 1715 | Fiume | 40 | Exercises. | ||
| Delfino (DL) | 4 Jul 1941 | 0910 | Fiume | 4 Jul 1941 | 1530 | Fiume | 26 | Exercises. | ||
| Delfino (DL) | 5 Jul 1941 | 1520 | Fiume | 5 Jul 1941 | 1745 | Fiume | 4 | Exercises. | ||
| Delfino (DL) | 7 Jul 1941 | 1045 | Fiume | 7 Jul 1941 | 1715 | Pola | 59 | Passage Fiume-Pola. | ||
| Delfino (DL) | 14 Jul 1941 | 0845 | Pola | 14 Jul 1941 | 1740 | Pola | 22 | Exercises. | ||
| Delfino (DL) | 17 Jul 1941 | 0804 | Pola | 17 Jul 1941 | 1550 | Pola | 53,5 | Exercises. | ||
| Delfino (DL) | 19 Jul 1941 | 0950 | Pola | 19 Jul 1941 | 1505 | Pola | 82,2 | Exercises escorted by the auxiliary Jadera. | ||
| Delfino (DL) | 22 Jul 1941 | 0830 | Pola | 24 Jul 1941 | 0720 | Taranto | 501 | Passage Pola-Taranto. | ||
| 9. | Delfino (DL) | 27 Jul 1941 | 1330 | Taranto | 6 Aug 1941 | 1450 | Taranto | 2142,7 | Patrolled 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 1941 | 2323 | 32° 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 1941 | 0055 | (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 1941 | 1300 | Taranto | 1 Sep 1941 | 1900 | Taranto | 32 | Exercises. | ||
| Delfino (DL) | 8 Sep 1941 | 0840 | Taranto | 8 Sep 1941 | 1620 | Taranto | 46,5 | Exercises. | ||
| Delfino (DL) | 11 Sep 1941 | 1030 | Taranto | 12 Sep 1941 | 1400 | Messina | 278 | Passage Taranto-Messina. | ||
| Delfino (DL) | 13 Sep 1941 | 1520 | Messina | 14 Sep 1941 | 1100 | Trapani | 193,5 | Passage Messina-Trapani. | ||
| Delfino (DL) | 20 Sep 1941 | 0820 | Trapani | 20 Sep 1941 | 1145 | Trapani | 27 | Exercises with the submarine Squalo, escorted by the auxilairy Petsamo. | ||
| 10. | Delfino (DL) | 24 Sep 1941 | 1320 | Trapani | 2 Oct 1941 | 0910 | Trapani | 902 | Patrolled 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 1941 | 0710 | Two light cruisers escorted by destroyers were seen at 12,000 metres, but passed out of range. | ||||||||
| 29 Sep 1941 | 1130 | A 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 1941 | 0935 | Trapani | 20 Oct 1941 | 0830 | Trapani | 353 | Sailed 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 1941 | 1745 | Trapani | 22 Oct 1941 | 1000 | Messina | 183 | Passage Trapani-Messina. | ||
| 12. | Delfino (DL) | 8 Nov 1941 | 0900 | Messina | 11 Nov 1941 | 1500 | Messina | 410 | Patrolled 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 1941 | 1650 | Messina | 28 Nov 1941 | 1541 | Trapani | 865 | Patrolled 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 1941 | 0905 | Trapani | 1 Dec 1941 | 1150 | Trapani | 16,5 | Exercises, escorted by the tug Montecristo. | ||
| Delfino (DL) | 13 Dec 1941 | 0855 | Trapani | 13 Dec 1941 | 1310 | Trapani | 26,8 | Exercises, escorted by the tug Levanzo. | ||
| 14. | Delfino (DL) | 3 Jan 1942 | 0645 | Trapani | 9 Jan 1942 | 0700 | Trapani | 986 | Patrol 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 1942 | 0245 | 37° 39'N, 12° 32'E | Returning 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 1942 | 0930 | Augusta | 17 Jan 1942 | 1200 | Augusta | Exercises, escorted by the auxiliary Trau. | |||
| Tricheco (TR) | 18 Jan 1942 | 0910 | Augusta | 18 Jan 1942 | 1045 | Augusta | Exercises. | |||
| Tricheco (TR) | 23 Jan 1942 | 0945 | Augusta | 23 Jan 1942 | 1630 | Messina | Passage Augusta-Messina. | |||
| Delfino (DL) | 28 Jan 1942 | 0900 | Trapani | 28 Jan 1942 | 1145 | Trapani | 17 | Exercises, escorted by the auxiliary Nasello. | ||
| Delfino (DL) | 31 Jan 1942 | 1449 | Trapani | 31 Jan 1942 | 1800 | Trapani | 17 | Exercises. | ||
| 15. | Delfino (DL) | 10 Feb 1942 | 1710 | Trapani | 11 Feb 1942 | 0545 | Trapani | 106 | Sailed 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 1942 | 1530 | Trapani | 21 Feb 1942 | 0045 | Crotone | 356 | Passage Trapani-Crotone. | ||
| Delfino (DL) | 22 Feb 1942 | 0550 | Crotone | 24 Feb 1942 | 0815 | Pola | 494 | Passage Crotone-Pola. Sighted only Italian ships. Assigned to submarine school at Pola. | ||
| Delfino (DL) | 3 Mar 1942 | 1250 | Pola | 3 Mar 1942 | 1850 | Pola | 16 | Exercises. | ||
| Delfino (DL) | 5 Mar 1942 | 0815 | Pola | 5 Mar 1942 | 1400 | Pola | 15 | Exercises. | ||
| Delfino (DL) | 6 Mar 1942 | 1245 | Pola | 6 Mar 1942 | 1735 | Pola | 3,5 | Exercises. | ||
| Delfino (DL) | 7 Mar 1942 | 0820 | Pola | 7 Mar 1942 | 1415 | Pola | 16 | Exercises. | ||
| Delfino (DL) | 10 Mar 1942 | 0825 | Pola | 10 Mar 1942 | 1425 | Pola | 16,5 | Exercises. | ||
| Delfino (DL) | 12 Mar 1942 | 1246 | Pola | 12 Mar 1942 | 1845 | Pola | 20 | Exercises. | ||
| Delfino (DL) | 14 Mar 1942 | 0815 | Pola | 14 Mar 1942 | 1430 | Pola | 19 | Exercises. | ||
| Delfino (DL) | 17 Mar 1942 | 1335 | Pola | 17 Mar 1942 | 1915 | Pola | 19 | Exercises. | ||
| Delfino (DL) | 2 Apr 1942 | 1320 | Pola | 2 Apr 1942 | 1905 | Pola | 24 | Exercises. | ||
| Delfino (DL) | 6 Apr 1942 | 0820 | Pola | 6 Apr 1942 | 1410 | Pola | 21 | Exercises, escorted by the auxiliary Grado. | ||
| Delfino (DL) | 9 Apr 1942 | 1240 | Pola | 9 Apr 1942 | 1900 | Pola | 21 | Exercises. | ||
| Delfino (DL) | 11 Apr 1942 | 1245 | Pola | 11 Apr 1942 | 1750 | Pola | 26 | Exercises. | ||
| Delfino (DL) | 15 Apr 1942 | 1258 | Pola | 15 Apr 1942 | 1845 | Pola | 27 | Exercises. | ||
| Delfino (DL) | 20 Apr 1942 | 1250 | Pola | 20 Apr 1942 | 1850 | Pola | 27 | Exercises. | ||
| Delfino (DL) | 24 Apr 1942 | 0820 | Pola | 24 Apr 1942 | 1435 | Pola | 27 | Exercises. | ||
| Delfino (DL) | 22 Jun 1942 | 0905 | Pola | 22 Jun 1942 | 1520 | Pola | 35 | Exercises. | ||
| Delfino (DL) | 24 Jun 1942 | 1330 | Pola | 24 Jun 1942 | 1820 | Pola | 36 | Exercises. | ||
| Delfino (DL) | 25 Jun 1942 | 0555 | Pola | 25 Jun 1942 | 2020 | Pola | 160 | Exercises. | ||
| Delfino (DL) | 26 Jun 1942 | 1315 | Pola | 26 Jun 1942 | 1820 | Pola | 31 | Exercises. | ||
| Delfino (DL) | 27 Jun 1942 | 1030 | Pola | 27 Jun 1942 | 1235 | Pola | 0,5 | Entered dock? | ||
| Delfino (DL) | 2 Jul 1942 | 0800 | Pola | 3 Jul 1942 | 0050 | Fiume | 100 | Passage Pola-Fiume and exercises. | ||
| Delfino (DL) | 4 Jul 1942 | 0830 | Fiume | 4 Jul 1942 | 1355 | Fiume | 18 | Exercises. | ||
| Delfino (DL) | 7 Jul 1942 | 1415 | Fiume | 7 Jul 1942 | 2300 | Fiume | 45 | Exercises. | ||
| Delfino (DL) | 9 Jul 1942 | 1430 | Fiume | 10 Jul 1942 | 0205 | Fiume | 58 | Exercises. | ||
| Delfino (DL) | 11 Jul 1942 | 1645 | Fiume | 11 Jul 1942 | 2355 | Fiume | 40 | Exercises. | ||
| Delfino (DL) | 13 Jul 1942 | 1415 | Fiume | 14 Jul 1942 | 0255 | Fiume | 70 | Exercises. | ||
| Delfino (DL) | 15 Jul 1942 | 1455 | Fiume | 16 Jul 1942 | 0100 | Fiume | 60 | Exercises. | ||
| Delfino (DL) | 17 Jul 1942 | 1425 | Fiume | 18 Jul 1942 | 0100 | Fiume | 65 | Exercises. | ||
| Delfino (DL) | 21 Jul 1942 | 1420 | Fiume | 22 Jul 1942 | 0105 | Fiume | 60 | Exercises. | ||
| Delfino (DL) | 23 Jul 1942 | 0830 | Fiume | 23 Jul 1942 | 1715 | Fiume | 26 | Exercises. | ||
| Delfino (DL) | 25 Jul 1942 | 0845 | Fiume | 25 Jul 1942 | 1500 | Fiume | 25 | Exercises. | ||
| Delfino (DL) | 27 Jul 1942 | 1235 | Fiume | 27 Jul 1942 | 1540 | Fiume | 26 | Exercises. | ||
| Delfino (DL) | 29 Jul 1942 | 1240 | Fiume | 30 Jul 1942 | 0110 | Fiume | 50 | Exercises. | ||
| Delfino (DL) | 31 Jul 1942 | 0030 | Fiume | 31 Jul 1942 | 0620 | Fiume | 140 | Exercises. | ||
| Delfino (DL) | 4 Aug 1942 | 0825 | Fiume | 4 Aug 1942 | 1405 | Fiume | 20 | Exercises. | ||
| Delfino (DL) | 6 Aug 1942 | 1330 | Fiume | 6 Aug 1942 | 1950 | Fiume | 27 | Exercises. | ||
| Delfino (DL) | 8 Aug 1942 | 0825 | Fiume | 8 Aug 1942 | 1200 | Fiume | 11 | Exercises. | ||
| Delfino (DL) | 10 Aug 1942 | 1330 | Fiume | 10 Aug 1942 | 1900 | Fiume | 18 | Exercises. | ||
| Delfino (DL) | 12 Aug 1942 | 1330 | Fiume | 13 Aug 1942 | 0035 | Fiume | 45 | Exercises. | ||
| Delfino (DL) | 14 Aug 1942 | 0800 | Fiume | 14 Aug 1942 | 1215 | Fiume | 28 | Exercises. | ||
| Delfino (DL) | 18 Aug 1942 | 0830 | Fiume | 18 Aug 1942 | 1800 | Fiume | 30 | Exercises. | ||
| Delfino (DL) | 19 Aug 1942 | 2215 | Fiume | 20 Aug 1942 | 0335 | Fiume | 65 | Exercises. | ||
| Delfino (DL) | 21 Aug 1942 | 1143 | Fiume | 21 Aug 1942 | 1625 | Fiume | 65 | Exercises. | ||
| Delfino (DL) | 22 Aug 1942 | 0840 | Fiume | 22 Aug 1942 | 1155 | Fiume | 8 | Exercises. | ||
| Delfino (DL) | 24 Aug 1942 | 1500 | Fiume | 24 Aug 1942 | 1805 | Fiume | 12 | Exercises. | ||
| Delfino (DL) | 26 Aug 1942 | 1525 | Fiume | 26 Aug 1942 | 2035 | Fiume | 14 | Exercises. | ||
| Delfino (DL) | 28 Aug 1942 | 1615 | Fiume | 29 Aug 1942 | 0030 | Fiume | 50 | Exercises. | ||
| Delfino (DL) | 31 Aug 1942 | 1515 | Fiume | 1 Sep 1942 | 0050 | Fiume | 50 | Exercises. | ||
| Delfino (DL) | 2 Sep 1942 | 1445 | Fiume | 3 Sep 1942 | 0045 | Fiume | 65 | Exercises. | ||
| Delfino (DL) | 4 Sep 1942 | 1500 | Fiume | 4 Sep 1942 | 1930 | Fiume | 11 | Exercises. | ||
| Delfino (DL) | 7 Sep 1942 | 1500 | Fiume | 8 Sep 1942 | 0200 | Fiume | 75 | Exercises. | ||
| Delfino (DL) | 9 Sep 1942 | 1500 | Fiume | 9 Sep 1942 | 2000 | Fiume | 12 | Exercises. | ||
| Delfino (DL) | 11 Sep 1942 | 1500 | Fiume | 11 Sep 1942 | 1925 | Fiume | 12 | Exercises. | ||
| Delfino (DL) | 12 Sep 1942 | 1005 | Fiume | 12 Sep 1942 | 1710 | Fiume | 15 | Exercises. | ||
| Delfino (DL) | 15 Sep 1942 | 2000 | Fiume | 15 Sep 1942 | 2355 | Fiume | 40 | Exercises with the submarine Manara, escorted by the torpedo boat Fortunale. | ||
| Delfino (DL) | 17 Sep 1942 | 2000 | Fiume | 18 Sep 1942 | 0030 | Fiume | 45 | Exercises with the submarine Manara, escorted by the torpedo boat Fortunale. | ||
| Delfino (DL) | 20 Sep 1942 | 0335 | Fiume | 20 Sep 1942 | 0645 | Fiume | 12 | Exercises, escorted by the torpedo boat Fortunale. | ||
| Delfino (DL) | 21 Sep 1942 | 1630 | Fiume | 21 Sep 1942 | 2355 | Fiume | 50 | Exercises with the submarine Manara, escorted by the auxiliary Marcello. | ||
| Delfino (DL) | 23 Sep 1942 | 1030 | Fiume | 23 Sep 1942 | 2355 | Fiume | 45,58 | Exercises with the submarine Manara, escorted by the torpedo boat Audace and the auxiliary Jadera. | ||
| Delfino (DL) | 25 Sep 1942 | 1150 | Fiume | 25 Sep 1942 | 1910 | Fiume | 22 | Exercises with the submarine Manara, escorted by the torpedo boat Audace and the auxiliary Jadera. | ||
| Delfino (DL) | 28 Sep 1942 | 0940 | Fiume | 28 Sep 1942 | 1310 | Fiume | 8 | Exercises with the submarine Manara, escorted by the auxiliary Abbazia. | ||
| Delfino (DL) | 29 Sep 1942 | 1136 | Fiume | 29 Sep 1942 | 2327 | Fiume | 45 | Exercises with Manara, escorted by the gunboat Cattaro. | ||
| Delfino (DL) | 30 Sep 1942 | 1050 | Fiume | 30 Sep 1942 | 2345 | Fiume | 50 | Exercises with Manara, escorted by the gunboat Cattaro. | ||
| Delfino (DL) | 2 Oct 1942 | 1630 | Fiume | 2 Oct 1942 | 1645 | Fiume | 3 | Exercises. | ||
| Delfino (DL) | 10 Oct 1942 | 1145 | Fiume | 10 Oct 1942 | 1200 | Fiume | 3 | Exercises. | ||
| Delfino (DL) | 12 Oct 1942 | 0955 | Fiume | 12 Oct 1942 | 2210 | Fiume | 40 | Exercises. | ||
| Delfino (DL) | 13 Oct 1942 | 1210 | Fiume | 13 Oct 1942 | 1840 | Fiume | 25 | Exercises. | ||
| Delfino (DL) | 15 Oct 1942 | 1210 | Fiume | 15 Oct 1942 | 2230 | Fiume | 45 | Exercises, escorted by the torpedo boat Insidioso. | ||
| Delfino (DL) | 16 Oct 1942 | 1020 | Fiume | 16 Oct 1942 | 2400 | Fiume | 50 | Exercises. | ||
| Delfino (DL) | 19 Oct 1942 | 1215 | Fiume | 19 Oct 1942 | 2125 | Fiume | 35 | Exercises with the submarines Manara and Jalea, escorted by the torpedo boat Insidioso. | ||
| Delfino (DL) | 21 Oct 1942 | 1225 | Fiume | 21 Oct 1942 | 2215 | Fiume | 48 | Exercises. | ||
| Delfino (DL) | 23 Oct 1942 | 1150 | Fiume | 23 Oct 1942 | 2120 | Fiume | 40 | Exercises. | ||
| Delfino (DL) | 26 Oct 1942 | 0902 | Fiume | 26 Oct 1942 | 1820 | Fiume | 23 | Exercises. | ||
| Delfino (DL) | 28 Oct 1942 | 1030 | Fiume | 28 Oct 1942 | 2043 | Fiume | 41 | Exercises. | ||
| Delfino (DL) | 3 Nov 1942 | 0820 | Fiume | 5 Nov 1942 | 1400 | Taranto | 588 | Passage Pola-Taranto to resume operations, escorted by the torpedo boat Insidioso until 1420 hours on 3rd November. | ||
| Delfino (DL) | 12 Nov 1942 | 0900 | Taranto | 12 Nov 1942 | 1100 | Taranto | 9 | Exercises. | ||
| 16. | Delfino (DL) | 13 Nov 1942 | 1130 | Taranto | 16 Nov 1942 | 1407 | Buerat El Sun | Supply mission to Buerat El Sun (70.2 tons of German ammunition). | ||
| 14 Nov 1942 | 0530 | An unidentified ship was seen at 2,000 metres and the submarine prudently dived. | ||||||||
| 16 Nov 1942 | 0720 | 32° 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 1942 | 0220 | Buerat El Sun | 21 Nov 1942 | 1500 | Taranto | 1508 | Return trip from supply mission. | |
| 18 Nov 1942 | 1400 | An enemy aircraft was sighted and the submarine dived. | ||||||||
| 18 Nov 1942 | 1555 | Two enemy aircraft were sighted and the submarine dived. | ||||||||
| 19 Nov 1942 | 1052 | (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 1942 | 0825 | Taranto | 5 Dec 1942 | 1310 | Taranto | 23 | Trials. | ||
| Delfino (DL) | 6 Dec 1942 | 0800 | Taranto | 6 Dec 1942 | 1510 | Taranto | 50 | Escorted a submarine or trials? | ||
| 18. | Delfino (DL) | 9 Dec 1942 | 1100 | Taranto | 12 Dec 1942 | 0700 | Buerat El Sun | Supply 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 1942 | 0445 | An unknown aircraft flying toward Delfino was sighted and the submarine dived. | ||||||||
| 19. | Delfino (DL) | 12 Dec 1942 | 1515 | Buerat El Sun | 15 Dec 1942 | 1620 | Taranto | 1215 | Return trip from supply mission [mileage is for round trip]. | |
| 14 Dec 1942 | 0020-0110 | An Italian hospital ship was seen on an opposite course. | ||||||||
| 15 Dec 1942 | 1120-1220 | (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 1942 | 1040 | Taranto | 2 Jan 1943 | 0900 | Tripoli | 678 | Supply 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 1942 | 1450 | 40° 40'N, 17° 11'E | A derelict mine was sunk by machine gun fire. | |||||||
| 1 Jan 1943 | 0315 | Two destroyers were sighted at 3,000 metres and the submarine dived. | ||||||||
| 1 Jan 1943 | 2140 | A Hospital ship was encountered which turned out to be Gradisca and they proceeded in company to Tripoli. | ||||||||
| 21. | Delfino (DL) | 2 Jan 1943 | 1600 | Tripoli | 6 Jan 1943 | 1020 | Taranto | 680 | Return trip from supply mission. | |
| 5 Jan 1943 | 1130-1250 | (0) Probably about 50 miles from Cape Colonne. | A balloon of the incendiary type was shot down by machine gun fire. | |||||||
| 6 Jan 1943 | 0750 | (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.