Italian submarines in World War Two

Italian Commanders

Career information


Commands listed for


Submarine Type Rank From

War patrols listed for

 SubmarineDateTimePortArr. dateArr. timeArr. portMilesDescription
R 3 ()Incomplete.

R 4 ()Incomplete.

FR 111 (ex-Phoque) ()BizertaBizertaCaptured by the Germans at Bizerta in December 1942. Allocated to Italian Navy.

FR 113 (ex-Requin) ()BizertaBizertaCaptured by the Germans at Bizerta in December 1942. Allocated to Italian Navy.

FR 114 (ex-Espadon) ()Ferryville (Bizerta)Ferryville (Bizerta)Captured by the Germans at Bizerta in December 1942. Allocated to Italian Navy.

FR 112 (ex-Saphir) ()BizertaBizertaCaptured by the Germans at Bizerta in December 1942. Allocated to Italian Navy. Was to have been transformed into a pontoon to carry stores.

FR 116 (ex-Turquoise) ()BizertaBizertaCaptured by the Germans in Bizerta in December 1942. Allocated to Italian Navy.

FR 117 (ex-Circé) ()BizertaBizertaCaptured by the Germans in Bizerta in December 1942. Allocated to Italian Navy.

Ex-French Calypso ()BizertaBizertaCaptured by the Germans at Bizerta in December 1942. Allocated to Italian Navy.

CA 1 ()10 Jun 1940La Spezia10 Jun 1940La SpeziaAt la Spezia at the outbreak of the war.

CA 2 ()10 Jun 1940La Spezia10 Jun 1940La SpeziaAt la Spezia at the outbreak of the war. Was to have been transported by the submarine Da Vinci to attack New York.

Ammiraglio Cagni (CA, N.55)20 Jul 1940Monfalcone20 Jul 1940MonfalconeLaunched.

X 2 (X2)1 Oct 1940Pola1 Oct 1940PolaDisarmed at Pola.

X 3 (X3)1 Oct 1940Pola1 Oct 1940PolaDisarmed at Pola.

Ammiraglio Saint Bon (SB)14 Nov 19400900Monfalcone14 Nov 19401600MonfalconeTrials escorted by the auxiliary Grado.

Ammiraglio Saint Bon (SB)23 Nov 19401000Monfalcone23 Nov 19401615MonfalconeTrials escorted by the auxiliary Grado.

Ammiraglio Saint Bon (SB)28 Nov 19400940Monfalcone28 Nov 19401640MonfalconeTrials escorted by the auxiliary Grado.

Ammiraglio Saint Bon (SB)2 Dec 19401000Monfalcone2 Dec 19401530?PolaPassage Monfalcone-Pola, escorted by the torpedo boat San Martino.

Ammiraglio Saint Bon (SB)4 Dec 19400850Pola4 Dec 19401435PolaTrials, escorted by MAS 426.

Ammiraglio Saint Bon (SB)5 Dec 19400940Pola5 Dec 19401700PolaTrials, escorted by the tug Tenace.

Ammiraglio Saint Bon (SB)7 Dec 19400900Pola7 Dec 19401700PolaTrials, escorted by MAS 423.

Ammiraglio Saint Bon (SB)8 Dec 19400855Pola8 Dec 19401715PolaTrials, escorted by the auxiliary San Giorgio.

Ammiraglio Saint Bon (SB)9 Dec 19400915Pola9 Dec 19401620PolaTrials, escorted by the tug Nettuno.

Ammiraglio Saint Bon (SB)12 Dec 19400855Pola12 Dec 19401230PolaTrials, escorted by the torpedo boat San Martino.

Ammiraglio Saint Bon (SB)13 Dec 19400915Pola13 Dec 19401540PolaTrials, escorted by the torpedo boat San Martino.

Ammiraglio Saint Bon (SB)14 Dec 19400925Pola14 Dec 19401730PolaTrials, escorted by the torpedo boat San Martino.

Ammiraglio Saint Bon (SB)15 Dec 19400845Pola15 Dec 19401705PolaTrials, escorted by the torpedo boat San Martino.

Ammiraglio Saint Bon (SB)17 Dec 19400910Pola17 Dec 19401645PolaTrials, escorted by the auxiliary Laurana.

Ammiraglio Saint Bon (SB)27 Dec 19400925Pola27 Dec 19401405PolaDiving trials, escorted by Laurana.

Ammiraglio Saint Bon (SB)28 Dec 19400905Pola28 Dec 19401110PolaDiving trials, escorted by the auxiliary Laurana.

Ammiraglio Saint Bon (SB)29 Dec 19401030Pola29 Dec 19401700PolaTrials, escorted by the auxiliary Laurana.

Ammiraglio Saint Bon (SB)30 Dec 19400910Pola30 Dec 19401700PolaTrials, escorted by the tug Tenace.

Ammiraglio Saint Bon (SB)31 Dec 19400910Pola31 Dec 19401615PolaDiving trials, escorted by the auxiliary Laurana.

Ammiraglio Saint Bon (SB)2 Jan 19410900Pola2 Jan 19411655PolaTrials escorted by the auxilary Laurana.

Ammiraglio Saint Bon (SB)3 Jan 19410920Pola3 Jan 19411540MonfalconePassage Pola-Monfalcone, escorted by the torpedo boat San Martino.

Ammiraglio Cagni (CA, N.55)27 Jan 19410945Monfalcone27 Jan 19411530PolaPassage Monfalcone-Pola, escorted by the auxiliary Laurana.

Ammiraglio Cagni (CA, N.55)29 Jan 19410840Pola29 Jan 19411430PolaTrial escorted by the tug Parenzo.

Ammiraglio Cagni (CA, N.55)31 Jan 19410845Pola31 Jan 19411430PolaTrials escorted by the tug Parenzo.

Ammiraglio Cagni (CA, N.55)1 Feb 19410343Pola1 Feb 19410915PolaTrials escorted by the auxiliary Laurana.

Ammiraglio Cagni (CA, N.55)2 Feb 19410835Pola2 Feb 19411445PolaTrials escorted by the auxiliary Laurana.

Ammiraglio Cagni (CA, N.55)3 Feb 19410900Pola3 Feb 19411115PolaDiving trials with the submarine Balilla escorted by auxiliary Laurana.

CB 1 ()7 Feb 19411525La Spezia7 Feb 1941La SpeziaExercises, escorted by the torpedo boat Monzabano.

Ettore Fieramosca (FM)10 Apr 1941Pola10 Apr 1941PolaDisarmed due to poor state of the submarine, following the damage to her battery in June 1940.

Ammiraglio Caracciolo (CC)15 Apr 1941Monfalcone15 Apr 19411100MonfalconeChange moorings? towed by the tug Taurus.

CB 3 ()16 Apr 19411000La Spezia16 Apr 19411420La SpeziaExercises with CB 4 escorted by the auxiliary Rimini.

Antonio Bajamonti (ex-N.2, ex-Smeli) (BM)17 Apr 1941Kotor17 Apr 1941KotorSeized by Italian Navy and renamed N.2 and again renamed (ca. June 1941) Antonio Bajamonti.

Francesco Rismondo (ex-N.1, ex-Osvetnik) (RI)17 Apr 1941Kotor17 Apr 1941KotorThe Yugoslav submarine Ostvenik was seized by the Italian Navy. Renamed N 1 up and renamed again (ca. June 1941) Francesco Rismondo.

N.3 (ex-Hrabri) ()17 Apr 1941Kotor17 Apr 1941KotorSeized by Italian Navy and renamed N 3.

CB 1 ()22 Apr 19410830La Spezia22 Apr 19411815La SpeziaExercises with the submarine Scirè and the tugs Torre Annunziata, Capodistria and Crotone.

CB 1 ()23 Apr 19410750La Spezia23 Apr 19411825La SpeziaExercises with the tug Meloria.

Balilla (BL)28 Apr 1941Pola28 Apr 1941PolaDisarmed and used as floating oil pontoon.

CB 1 ()10 May 1941La Spezia10 May 19411155La SpeziaEntered service.

Tito Speri (TS)13 May 19410815Pola13 May 19411800Pola51Exercises with the submarine Alagi escorted by the auxiliary Jadera.

Domenico Millelire (MI)15 May 1941Taranto15 May 1941TarantoDisarmed and used as floating oil depot.

N.3 (ex-Hrabri) ()21 May 19410509Teodo21 May 19412110SpalatoPassage Teodo-Spalato of the three ex-Yugoslav submarines N 1, N 2 and N 3, escorted by torpedo boat Bassini.

N.3 (ex-Hrabri) ()22 May 19410955Spalato22 May 19411725ZaraPassage Spalato-Zara of the three ex-Yugoslav submarines N 1, N 2 and N 3 escorted by the torpedo boat Bassini.

N.3 (ex-Hrabri) ()23 May 19410945Zara23 May 19411800Pola318,8Passage Zara-Pola of the three ex-Yugoslav submarines N 1, N 2 and N 3 with the torpedo boat Bassini and tug Marittimo [mileage is from Teodo]. Not operational and not commissioned. Broken up in 1941.

Platino (PT)4 Aug 19411030La Spezia4 Aug 1941La SpeziaExercises escorted by the tug Favignana and MAS 507.

Platino (PT)20 Aug 19410935La Spezia20 Aug 19411630La SpeziaExercises, escorted by MAS 525.

Platino (PT)8 Sep 19411010La Spezia8 Sep 19411700La SpeziaExercises, escorted by MAS 510 and MAS 567.

Acciaio (AC)11 Sep 19410945La Spezia11 Sep 19411350La SpeziaExercises escorted by MAS 568.

Acciaio (AC)23 Sep 19410855La Spezia23 Sep 19411435La SpeziaExercises, escorted by the auxiliaries Crotone and Capodistria and MAS 505.

Giovanni Bausan (BN)6 Oct 19410800Pola6 Oct 19411600Pola60Exercises with submarine Des Geneys, escorted by the torpedo boat Audace and the auxiliary Morrhua.

Giovanni Bausan (BN)8 Oct 19411015Pola8 Oct 19411920Pola66Exercises with the submarine Emo, escorted by the torpedo boat Insidioso and the auxiliary Jadera.

Asteria (AE)8 Oct 19410850Pola8 Oct 19411830PolaTrials, escorted by the auxiliary Salvatore.

Platino (PT)13 Oct 19410850La Spezia13 Oct 19411700La SpeziaExercises with MAS 571 and the auxiliaries Crotone and Capodistria.

Platino (PT)17 Oct 19410905La Spezia17 Oct 19411140La SpeziaExercises with submarines Veniero and Malachite, escorted by MAS 572 and the auxiliary Capodistria.

Giada (GD, N.88)22 Oct 19410910Pola22 Oct 19411715PolaTrials, escorted by the auxiliary Morrhua.

Acciaio (AC)25 Oct 19410915La Spezia25 Oct 19411645La SpeziaExercises, escorted by the auxiliariy Capodistria and MAS 570.

Acciaio (AC)27 Oct 19410900La Spezia27 Oct 19411710La SpeziaExercises, with the submarine Mocenigo escorted by MAS 570.

Bronzo (BZ)27 Oct 19411150Taranto27 Oct 19411515TarantoTrials, escorted by MAS 7/D.

Acciaio (AC)30 Oct 19410900La Spezia30 Oct 19411200La SpeziaExercises, escorted by MAS 573.

Bronzo (BZ)4 Nov 19410805Taranto4 Nov 19411155TarantoTrials, escorted by MAS 3/D.

Cobalto (CB)20 Nov 19410900La Spezia20 Nov 19411420La SpeziaExercises with the destroyer Premuda and MAS 525.

Cobalto (CB)25 Nov 19410900La Spezia25 Nov 19411635La SpeziaExercises with the submarines H 1, H 6 and Colonna and escorted by the torpedo boat La Masa and MAS 510.

Granito (GR)28 Nov 19410730Pola28 Nov 19411840PolaTrials, escorted by San Giorgio.

Marcantonio Bragadino (BG)3 Dec 1941Taranto13 Dec 1941TarantoAt Taranto. No Commanding officer?

Bronzo (BZ)13 Dec 19410910Taranto13 Dec 19411445TarantoTrials with Brin, escorted by auxiliary Dalmazia.

Cobalto (CB)23 Dec 19410915La Spezia23 Dec 19411705La SpeziaExercises with with the submarines H 6 and Colonna, escorted by the destroyer Premuda, MAS 505, MAS 510 and the auxiliaries Capodistria and Crotone.

Porfido (PO)23 Dec 19411005Pola23 Dec 19411700PolaExercises, escorted by auxiliary Trau.

Porfido (PO)26 Dec 19410830Pola26 Dec 19411530PolaExercises, escorted by the auxiliary San Giorgio.

Granito (GR)1 Jan 1942Monfalcone1 Jan 1942MonfalconeEntered service.

Cobalto (CB)5 Jan 19420900La Spezia5 Jan 19421250La SpeziaExercises, escorted by MAS 505.

Cobalto (CB)12 Jan 19420915La Spezia12 Jan 19421340La SpeziaExercises, escorted by MAS 505.

Acciaio (AC)22 Jan 19420849Muggiano22 Jan 19421630Muggiano36Trials with the submarine Cobalto. Escorted by Mesco, Favignana and MAS 505.

Acciaio (AC)26 Jan 19420846Muggiano26 Jan 19421725La Spezia48Trials and passage Muggiano-La Spezia.

Wolframio (Volframio) (VO)5 Feb 19421028Taranto5 Feb 19421606TarantoTrials, escorted by the tug Gennariello.

Alabastro (AB)8 Apr 19420900Pola8 Apr 19421740PolaExercises, escorted by the torpedo boat T.3.

Alabastro (AB)10 Apr 19420930Pola10 Apr 19421630PolaExercises, escorted by the torpedo boat T.3.

Alabastro (AB)11 Apr 19420730Pola11 Apr 19422030PolaDiving trials to 80 metres, escorted by the torpedo boat T.3.

Alabastro (AB)13 Apr 19420915Pola13 Apr 19421035PolaExercises, escorted by the torpedo boat T.3.

Argento (AG)13 Apr 19420845Taranto13 Apr 19421225TarantoExercises, escorted by the minesweeper R.D.30.

Alabastro (AB)16 Apr 19420835Pola16 Apr 19421830MonfalconeTrials and passage Pola-Monfalcone, escorted part of the way by torpedo boat T.3.

Balilla (BL)6 May 19420800Pola6 May 1942AfternoonPolaTowing trials as oil depot pontoon. Towed by the destroyer Riboty). Towed back with the help of Tug no.90.

Argento (AG)7 May 19420714Taranto7 May 19421607TarantoExercises, escorted by the minesweeper R.D.13.

Alabastro (AB)9 May 1942Monfalcone9 May 1942MonfalconeDelivered to Regia Marina.

Des Geneys (DN)25 May 1942Pola25 May 1942PolaDisarmed and used to charge batteries.

Marcantonio Colonna (CN)1 Jun 1942Genoa1 Jun 1942GenoaDisarmed.

Giovanni Bausan (BN)1 Jun 19421 Jun 1942Disarmed and used as floating oil depot.

Balilla (BL)6 Jun 19421140Pola8 Jun 19420000BrindisiPassage Pola-Brindisi as oil-carrying pontoon towed by the destroyer Da Verazzano (the maximum speed attained was 18 knots equivalent to 21 knots if the destroyer was not towing).

Balilla (BL)9 Jun 19422030Brindisi10 Jun 19420000BrindisiTowed to Messina by the destroyer Saetta. At 0325 hours on the 10th, the towing cable broke and she had to turn back assisted by the pilot vessel Cismondi and the destroyer Euro.

Balilla (BL)27 Jun 19420708Brindisi27 Jun 19421302ArgostoliPassage Brindisi-Argostoli as oil depot, towed by the destroyer Saetta and escorted by the destroyer Stocco and torpedo boat Castore.

Balilla (BL)29 Jun 19420500Argostoli29 Jun 19421600NavarinoPassage Argostoli-Navarino as oil depot, towed by the destroyer Saetta and escorted by the destroyer Stocco and torpedo boat Castore.

Balilla (BL)13 Jul 19420313Navarino13 Jul 19422107SudaPassage Navarino-Suda as oil depot, towed by destroyer Saetta. On 9th August, she was reported to act as a refuelling station at Suda, with the tanker Cerere, replacing Arca, who was returning to Brindisi.

Nichelio (NC)15 Jul 19420736La Spezia15 Jul 19421720La SpeziaExercises with the submarine H 1 escorted by MAS 509.

Balilla (BL)8 Aug 1942Date???Suda10 Aug 19420930BenghaziPassage Suda-Benghazi as oil depot (carrying 1,000 tons of oil?), towed by destroyer Saetta in company with the German transport Sante Fe (4,627 GRT, built 1921). Initially, she was to have gone to Tobruk. On 29th August 1942, she was authorised to carry 1,000 tons of German fuel.

CA 2 ()9 Sep 19421623Bordeaux9 Sep 19422030Le VerdonPassage Bordeaux-Le Verdon, piggy-back on the submarine Da Vinci.

CA 2 ()10 Sep 19420800Le Verdon10 Sep 19421750La PalliceTests with the submarine Da Vinci.

1.Domenico Millelire (MI)13 Sep 19420600Taranto14 Sep 19421135NavarinoTowed by the destroyer Saetta and escorted by the destroyer Castelfidardo, she carried 443 tons of oil and 247 tons of petrol.

2.Domenico Millelire (MI)15 Sep 19420520Navarino17 Sep 19421000TobrukTowed by the destroyer Saetta and escorted by the torpedo boat Castelfidardo for passage Navarino to Tobruk. Later towed to Taranto where she remained until the armistice.
  16 Sep 19420109-034233° 58'N, 22° 55'ETransformed as an oil depot, she was being towed to Navarino by the destroyer Saetta and escorted by the torpedo-boat Castelfidardo when they came under attack from Wellington bombers, which fired flares but do not appear to have dropped bombs.

CA 2 ()21 Sep 19420955La Pallice21 Sep 19422015Le VerdonTests with the submarine Da Vinci.

CA 2 ()22 Sep 19421415Le Verdon22 Sep 19421755BordeauxPassage Le Verdon-Bordeaux piggy-back on the submarine Da Vinci.

Domenico Millelire (MI)23 Sep 194223 Sep 1942Renamed as G.R. 248 (G.R. stood for Gallegiante Rifornimento or oil pontoon).

Balilla (BL)23 Sep 194223 Sep 1942Renamed G.R. 247 (G.R. stood for Gallegiante Rifornimento or oil pontoon).

Giovanni Bausan (BN)23 Sep 194223 Sep 1942Renamed G.R. 251 (G.R. stood for Gallegiante Rifornimento or oil pontoon).

Domenico Millelire (MI)11 Oct 19421400Tobruk13 Oct 19420230NavarinoPassage Tobruk-Navarino as oil-carrying pontoon, towed by destroyer Saetta, with the steamer Col Di Lana (the latter going to Piraeus) and escorted by the destroyer Freccia and the torpedo boats Lupo and Antares (and later Lira).
  12 Oct 19420020-013932° 44'N, 23° 46'EWhile being towed by the destroyer Saetta, in company with Col Di Lana (the latter going to Piraeus) and escorted by the destroyer Freccia and the torpedo-boats Lupo and Antares, the convoy came under air attack. Domenico Millelire was undamaged, but Antares was hit by a bomb and had casualties.

Domenico Millelire (MI)18 Oct 19420835Navarino19 Oct 19421435TarantoPassage Navarino-Taranto, towed by the destroyer Saetta and escorted by the torpedo boat Lira.

CB 1 ()24 Oct 19420700Sevastopol24 Oct 19421630YaltaPassage Sevastopol-Yalta with CB 4.

3.CB 1 ()27 Oct 19421500Yalta29 Oct 19420900YaltaAntisubmarine patrol off Yalta with CB 4.

4.CB 1 ()30 Oct 19421900Yalta31 Oct 19421230SevastopolPassage Yalta-Sevastopol and antisubmarine patrol with CB 4.

FR ? (ex. French Henri Poincaré) ()18 Nov 1942Toulon18 Nov 1942ToulonScuttled by the French. Wreck was raised by the Italians.

CB 6 ()22 Nov 19420800Sevastopol22 Nov 19421956OstchakovSailed for Costanza but then diverted to Ostchakov. Was towed by a tug.

5.CB 1 ()22 Nov 19420630Sevastopol23 Nov 19421400C. Tendra (anchored)Passage Sevastopol-Costanza with CB 2, CB 4 and CB 6 including antisubmarine patrol and stops at Cape Tendra (due to bad weather), Odessa, Bugaz and Sulina.

CB 2 ()22 Nov 19420800Sevastopol23 Nov 19421956OstchakovPassage Sevastopol-Ostchakov with CB 1, CB 4 and CB 6.

CB 1 ()24 Nov 19420600C. Tendra24 Nov 19421630OtchakovPassage Cape Tendra-Otchakov with CB 2, CB 4 and CB 6.

CB 1 ()26 Nov 19420630Otchakov26 Nov 19421200OtchakovPassage Otchakov-Odessa with CB 2, CB 4 and CB 6 but then turned back because of the bad weather.

CB 2 ()26 Nov 1942Date?Ostchakov27 Nov 1942OdessaPassage Ostchakov-Odessa with CB 1, CB 4 and CB 6.

CB 1 ()27 Nov 19420600Otchakov27 Nov 19421400OdessaPassage Otchakov-Odessa with CB 2, CB 4 and CB 6.

CB 6 ()27 Nov 19420600?Ostchakov27 Nov 19421400?OdessaPassage Ostchakov-Odessa, towed by a German tug, escorting a German convoy with CB 1, CB 2 and CB 4.

CB 1 ()28 Nov 19420600Odessa28 Nov 19421500BugazPassage Odessa-Bugaz with CB 2, CB 4 and CB 6.

CB 2 ()28 Nov 19420600?Odessa28 Nov 19421500?BugazPassage Odessa-Bugaz with CB 1, CB 4 and CB 6.

CB 6 ()28 Nov 19420600?Odessa28 Nov 19421500?BugazPassage Odessa-Bugaz with CB 1, CB 2 and CB 4.

CB 1 ()30 Nov 19420600Bugaz30 Nov 19422000SulinaPassage Bugaz-Sulina with CB 2, CB 4 and CB 6.

CB 2 ()30 Nov 19420600?Odessa30 Nov 19421930SulinaPassage Odessa-Sulina with CB 1, CB 4 and CB 6.

CB 6 ()30 Nov 19420600?Bugaz30 Nov 19422000?SulinaPassage Bugaz-Sulina with CB 1, CB 2 and CB 4.

CB 1 ()1 Dec 19421100Sulina1 Dec 1942Time?SulinaTrials. CB 1 and CB 6 remained in Sulina, while CB 2 and CB 4 were ordered to Costanza.

CB 2 ()1 Dec 19421100Sulina2 Dec 19420500Costanza440Passage Sulina-Costanza with CB 1, CB 4 and CB 6.

CB 6 ()3 Dec 1942Date?Sulina3 Dec 19420900Costanza440Passage Sulina-Costanza [mileage from 22nd November].

Domenico Millelire (MI)5 Dec 19420746Messina6 Dec 19420735PalermoPassage Messina-Palermo towed by the tugs Portoferraio and Luni, escorted by the torpedo boat Castelfidardo.

Ex-French Nautilus ()1 Jan 1943Bizerta1 Jan 1943BizertaOn 9th March 1943 it was concluded that she was in such a state that towing her out was impractical.

FR 115 (ex-Dauphin) ()4 Jan 19430900Ferryville4 Jan 19430900FerryvilleThe ex French submarine Dauphin was brought alongside the pier for repairs. The submarine had been captured in Bizerta in December 1942 and allocated to the Italian Navy. She would soon be renamed FR.115.

Ex-French Nautilus ()16 Jan 1943Bizerta17 Jan 1943BizertaDamaged by splinters during an air raid (Dauphin and Espadon were also present).
  16 Jan 19430430
(0) At Ferryville.
At 0430 hours, the ex-French submarine Nautilus, now under Italian colours, was damaged by bomb splinters when the harbour of Bizerta came under air attack.

Ex-French Nautilus ()23 Jan 19431500Ferryville23 Jan 19431500FerryvilleLeft the dock.

Francesco Rismondo (ex-N.1, ex-Osvetnik) (RI)30 Jan 1943La Spezia?30 Jan 1943La Spezia?Damaged by bomb at La Spezia? One killed.

Ex-French Calypso ()30 Jan 1943Bizerta30 Jan 19432100SunkSunk in an air raid.
  30 Jan 19432130
(0) Ferryville harbour.
At 1430 hours, the Italian freighter Noto (3,168 GRT, built 1938) carrying ammunition was hit by a bomb and set afire during an Allied air raid on Bizerta.

At 2100 hours, Noto blew up. The explosion fatally damaged the ex-French submarine Calypso (now under Italian colours) and she sank at 2130 hours.

Flutto (FL)24 Feb 19431530Monfalcone24 Feb 19431930MonfalconeTrials. The submarine entered service on 20th March 1943.

Balilla (BL)1 Mar 1943Piraeus1 Mar 1943PiraeusReported at Piraeus as floating oil depot G.R.S. 247. This is apparently an error and should read G.R. 247.

Domenico Millelire (MI)1 Mar 1943Palermo1 Mar 1943PalermoReported at Palermo as pontoon G.S.R. 248. This is probably an error and should read G.R. 248.

Giovanni Bausan (BN)1 Mar 1943Brindisi1 Mar 1943BrindisiReported at Brindisi as floating oil depot G.S.R. 251. This is apparently an error and should read G.R. 251.

Nautilo (UIT-19)20 Mar 1943Monfalcone20 Mar 1943MonfalconeLaunched.

Murena (UIT-16)11 Apr 1943La Spezia11 Apr 19430930La SpeziaLaunched.

Balilla (BL)17 Apr 19431805Suda19 Apr 19430145PiraeusPassage Suda-Piraeus, towed by the tugs Tenax and Instancabile together with steamer Olna (7,023 GRT, built 1921) and the tank-lighter Aris towed by the tug Cataldo, escorted by the German submarine chaser UJ-2101.

Enrico Toti (TO)1 May 1943Taranto1 May 1943TarantoRetired from service after being used as a training vessel and in supply missions. In June 1943, she was considered for use as a pontoon for transport.

Balilla (BL)1 May 1943Piraeus2 May 19431700ChalkisPassage Piraeus-Chalkis to provide fuel to the destroyer Turbine, which had the Italian Generals Manzi and Galla on board and was part of a large scale operation to clear the area of Greek partisans. On 4th May, she was to have gone to Volos, but it appears she remained in Chalkis and the Germans used her to block the harbour at the time of their evacuation from Greece. She was refloated and taken over by Greece as war booty.

6.H 2 (H2)5 May 19431800La Spezia6 May 19430915La Spezia74Defensive patrol with submarine H.8 (hydrophone watch) between (1) 43°42.5'N, 09°24.5'E (2) 43°40'N, 09°26'E (3) 43°47'N, 09°35'35'E (4) 43°44.5'N, 09°41'E. Uneventful.

Grongo (GG)6 May 1943La Spezia6 May 1943La SpeziaLaunched at La Spezia. Had been assigned to X.Mas since 30 March 1943.

FR 116 (ex-Turquoise) ()6 May 1943Bizerta6 May 1943ScuttledScuttled in Bizerta as she could not sail to Italy. Was to have been towed out on 20th March 1943.

FR 117 (ex-Circé) ()6 May 1943Bizerta6 May 1943ScuttledScuttled in Bizerta as she could not sail to Italy. Was to have been towed out on 20th March 1943 but unable to do so.

Murena (UIT-16)14 May 1943La Spezia14 May 1943La SpeziaTrials? Diverted by MAS 525 as she was on a collision course with Sparide.

Sparide (UIT-15)14 May 19431145La Spezia14 May 19431520La SpeziaExercises, escorted by MAS 525.

Sparide (UIT-15)24 May 19430800La Spezia24 May 19431800La SpeziaExercises, escorted by MAS 525.

7.CB 6 ()27 Jun 19430800Costanza29 Jun 19431200CostanzaCarried out a patrol?

Nautilo (UIT-19)30 Jun 19430915Monfalcone30 Jun 19431850PolaPassage Monfalcone-Pola.

8.CB 1 ()3 Jul 19430900Costanza5 Jul 19431500CostanzaSailed with CB 4 and patrolled 20 miles West of Kaliakra. Uneventful.

9.CB 4 ()3 Jul 19430900Costanza5 Jul 19431200Costanza?Sailed with CB 1 and patrolled 20 miles west of Kaliakra. Uneventful.

Nautilo (UIT-19)6 Jul 19430850Pola6 Jul 19431935MonfalconeTrials. The submarine was delivered to the Regia Marina on 26th July 1943.

10.CB 1 ()10 Jul 19430800 (s.o.)Costanza12 Jul 19431430CostanzaSailed with CB 4 for exercises and A/S patrol via Point CS 4 and CS 1 to point "Hamburg" (eastward of Kaliakra). Uneventul.

11.CB 4 ()10 Jul 19430800 (s.o.)Costanza12 Jul 19431430CostanzaSailed with CB 1 for exercises and A/S patrol eastward of Kaliakra.

FR ? (ex. French Henri Poincaré) ()18 Jul 1943Toulon18 Jul 1943ToulonWork expected to be completed by the end of the month.

Bronzo (BZ)18 Jul 1943Date???Syracuse19 Jul 1943MaltaPassage Syracuse-Malta. On 18th August, it was proposed to giver her to the Hellenic Navy and, if they refused, to the Yugoslav Navy.

CB 1 ()22 Jul 19430700Costanza23 Jul 19430000SulinaPassage Costanza-Sulina with CB 6 towed by the German tug Stralsund. Escorted by the submarine chaser UJ-2305 as far as 31°30'E, proceeded alone to SN 3 (Sevastopol) to escort two F-lighters and two HS-boats.

CB 6 ()22 Jul 19430700Costanza23 Jul 19430000SulinaPassage Costanza-Sulina with CB 1. She was towed by the German tug Stralsund and escorted by the submarine chaser UJ-2305 as far as 31°30'E then proceeded alone to SN 3 (Sevastopol) to escort two F-lighters and 2 HS-boats.

Murena (UIT-16)24 Jul 1943La Spezia24 Jul 1943La SpeziaCarried human torpedoes to attack Gibraltar. This was actually misinformation, to hide the use of Olterra.

CB 1 ()24 Jul 19432225Sulina26 Jul 19431230SevastopolPassage Sulina-Sevastopol with CB 6, the German submarine chaser UJ-2305 and the tugs Gastein and Stralsund; then escorted the lighters F-301 and F-304.

CB 6 ()24 Jul 19432225Sulina26 Jul 19431230SevastopolPassage Sulina-Sevastopol with CB 1, submarine chaser UJ-2305 and tugs Gastein and Stralsund; then escorted the lighters F-301 and F-304.

12.CB 4 ()25 Jul 19430830Costanza or Sulina?1 Aug 19431300?SevastopolSailed with CB 3, the German tug Stralsund and the submarine chasers UJ-2301 and UJ-2302. They arrived at Sevastopol with the lighters F-301, F-304 and MR-7 and RS-4.

Nautilo (UIT-19)26 Jul 1943Monfalcone26 Jul 1943MonfalconeEntered service.

Nautilo (UIT-19)2 Aug 19430830Monfalcone2 Aug 19431305PolaPassage Monfalcone-Pola.

FR 113 (ex-Requin) ()10 Aug 1943Castellamare di Stabbia10 Aug 1943Castellamare di StabbiaAt Castellamare di Stabbia.
  10 Aug 19430100
(0) At Castellamare di Stabbia.
At 0100 hours, the submarine base at Castellamare di Stabbia (outside Naples) came under shelling from the light cruisers HMS Aurora, HMS Penelope, HMS Sirius and HMS Dido and four destroyers.

FR.113 was hit aft and damaged, so were the light cruiser Giulio Germanico, the corvettes Libellula, Farfalla, Cicala and Grillo.

Nautilo (UIT-19)11 Aug 19430735Pola11 Aug 19431205MonfalconePassage Pola-Monfalcone at 15 knots.

Murena (UIT-16)25 Aug 1943La Spezia25 Aug 1943Entered service.

FR ? (ex. French Henri Poincaré) ()26 Aug 1943Toulon26 Aug 1943ToulonReported at Toulon.

FR 114 (ex-Espadon) ()3 Sep 19433 Sep 1943Reported at sea. Exercises?

FR ? (ex. French Henri Poincaré) ()3 Sep 1943Toulon4 Sep 1943Date???GenoaPassage Toulon-Genoa escorted by MAS 424. The French Admiral Dambe protested the seizure of the submarine.

CM 1 (UIT.17)5 Sep 1943Monfalcone5 Sep 1943MonfalconeLaunched at Monfalcone.

FR 113 (ex-Requin) ()5 Sep 19430304Castellammare di Stabia6 Sep 19430115CivitavecchiaPassage Castellammare di Stabia-Civitavecchia.

FR 113 (ex-Requin) ()6 Sep 19430520Civitavecchia6 Sep 19431840LivornoPassage Civitavecchia-Livorno.

FR 113 (ex-Requin) ()7 Sep 19430515Livorno7 Sep 19431540GenoaPassage Livorno-Genoa.

CB 7 ()8 Sep 1943Pola8 Sep 1943PolaAt Pola. Being repaired after battery explosion and without periscope. Never operational again.

CB 13 ()8 Sep 1943Pola8 Sep 1943PolaAt Pola at armistice time.

CB 14 ()8 Sep 1943Pola8 Sep 1943PolaAt Pola at armistice time.

CB 15 ()8 Sep 1943Pola8 Sep 1943PolaAt Pola at armistice time.

CB 16 ()8 Sep 1943Pola8 Sep 1943PolaAt Pola at armistice time.

CB 17 ()8 Sep 1943Trieste8 Sep 1943TriesteSeized at Trieste by the Germans. Reported in Trieste in August 1944.

CB 18 ()8 Sep 1943Trieste8 Sep 1943TriesteSeized at Trieste by the Germans.

CB 19 ()8 Sep 1943Trieste8 Sep 1943TriesteSeized by the Germans at Trieste.

CB 21 ()8 Sep 1943Taliedo (Milan)8 Sep 1943Taliedo (Milan)Seized by the Germans while under construction.

CB 22 ()8 Sep 1943Taliedo8 Sep 1943TaliedoSeized by the Germans while under construction. Further trace is lost.

CM 1 (UIT.17)8 Sep 1943Monfalcone8 Sep 1943MonfalconeWas at Monfalcone at armistice time.

CM 3 ()8 Sep 1943Taliedo8 Sep 1943TaliedoSeized by the Germans while under construction.

Nautilo (UIT-19)8 Sep 1943 PM or 1245/9?Monfalcone9 Sep 19431712VenicePassage Monfalcone-Venice.

Des Geneys (DN)9 Sep 1943Fiume9 Sep 1943ScuttledScuttled following armistice.

H 8 (H8)9 Sep 1943Genoa9 Sep 1943GenoaSeized by the Germans. Had been used as a battery charging station.

Bario (UIT-7)9 Sep 1943Monfalcone9 Sep 1943MonfalconeCaptured on slip by the Germans, Renamed UIT-7 and launched on 23rd January 1944. Reported completed at Monfalcone on 1st August 1944 and was to be manned by an Italian crew. Scuttled on 1st May 1945.

S 10 ()9 Sep 1943Danzig9 Sep 1943DanzigTaken over by the Germans and reverted to U-1162.

R 10 (UIT.1)9 Sep 1943La Spezia9 Sep 1943La SpeziaCaptured by the Germans, renamed UIT 1 and launched on 12 July 1944.

R 11 (UIT.2)9 Sep 1943La Spezia9 Sep 1943La SpeziaCaptured by the Germans. Renamed UIT 2 and launched on 16 August 1944. Towed to Genoa.

R 12 (UIT.3)9 Sep 1943La Spezia9 Sep 1943La SpeziaCaptured by the Germans. Renamed UIT 3 and launched on 19 September 1944.

FR 113 (ex-Requin) ()9 Sep 1943Genoa9 Sep 1943ScuttledScuttled by Italians. Later refloated by the Germans and broken up. They referred to her as of Yugoslav BAJAMONTI class.

CB 23 ()9 Sep 19439 Sep 1943Under construction at Taliedo (Caproni). Seized by the Germans.

CM 2 ()9 Sep 1943Monfalcone9 Sep 1943MonfalconeCaptured incomplete.

Marcantonio Colonna (CN)9 Sep 1943Genoa9 Sep 1943ScuttledScuttled at the armistice. Later raised by the Germans and broken up.
  9 Sep 1943
(0) Genoa harbour.
The submarine was scuttled as she could not sail after the Armistice. She was later raised by the Germans and broken up.

Murena (UIT-16)9 Sep 1943La Spezia9 Sep 1943ScuttledScuttled after Armistice. One killed. Refloated by Germans and became UIT-16. In December 1943, she was being repaired by OTO works Muggiano, La Spezia. In May 1944, she was moved to Genoa with Grongo and Sparide. On 28th May 1944, she was ready to carry out human torpedoes.
  9 Sep 1943
(0) La Spezia harbour.
At the time of the Armistice, Murena could not sail to join the Allies and was scuttled by her crew. The engineer officer was trapped and drowned and 2° Capo Palombaro Ario Lazzari [who had participated in the attack on Gibraltar in May 1943] from the 10th MAS recovered the body. The submarine was later raised at towed to Genoa and became the German UIT-16.

FR ? (ex. French Henri Poincaré) ()9 Sep 1943Genoa9 Sep 1943ScuttledScuttled at the armistice. Raised by the Germans ten days later. Part of her hull was found in Genoa and sold on 23rd March 1946 for scrap. The engines were found and shipped back to France.
  9 Sep 1943
(0) Genoa harbour.
The ex-French Henri Poincaré (she does not appeared to have been renamed) was scuttled as she could not sail at the time of the Armistice.

CM 1 (UIT.17)9 Sep 1943Monfalcone16 Sep 1943VeniceSailed with Nautilo (which developed defects) and was seized by the Germans at Venice.

Nautilo (UIT-19)10 Sep 1943Venice10 Sep 1943ScuttledAttempted to escape (carrying part of the crews from Argo and Beilul including her C.O. T.V. Pasquale Beltrame) with the small submarine CM.1 to join the allies but stopped by German S-boats and diverted to Venice. Scuttled after armistice. Captured by Germans and renamed UIT-19.

Ferro (UIT.12)10 Sep 1943Monfalcone10 Sep 1943MonfalconeCaptured on slip by the Germans and renamed UIT-12. Blown up on 1st May 1945.

Litio (UIT-8)10 Sep 1943Monfalcone10 Sep 1943MonfalconeCaptured on slip by the Germans and renamed UIT-8. Blown up on 1st May 1945.

Piombo (UIT.13)10 Sep 1943Monfalcone10 Sep 1943MonfalconeCaptured on slip by the Germans ad renamed UIT-13. Blown up on 1st May 1945.

Potassio (UIT.10)10 Sep 1943Monfalcone10 Sep 1943MonfalconeCaptured on slip by the Germans ad renamed UIT-10. Blown up on 1st May 1945.

Rame (UIT.11)10 Sep 1943Monfalcone10 Sep 1943MonfalconeCaptured on slip by the Germans and renamed UIT-11. Blown up on 1st May 1945.

Sodio (UIT-9)10 Sep 1943Monfalcone10 Sep 1943MonfalconeCaptured on slip by the Germans and renamed UIT-9. Blown up on 1st May 1945.

R 7 (UIT.4)10 Sep 1943Monfalcone10 Sep 1943MonfalconeCaptured by the Germans. Renamed UIT-4 and launched on 21 October 1943.

R 8 (UIT.5)10 Sep 1943Monfalcone10 Sep 1943MonfalconeCaptured by the Germans. Renamed UIT-5 and launched on 28 December 1943.

R 9 (UIT.6)10 Sep 1943Monfalcone10 Sep 1943MonfalconeCaptured by the Germans. Renamed UIT-6 and launched on 27 February 1943.

CB 13 ()10 Sep 1943Pola10 Sep 1943EveningSurrendered.She was made ready by using parts from CB 7, but was then ordered to surrender to the Germans by Admiral Strazzeri. Under repairs at Pola until at least 29th September 1944. Transferred from Trieste to Pola in a ship in February 1945.

CB 14 ()10 Sep 1943Pola10 Sep 1943EveningSurrenderedShe was made ready by using parts from CB 7, but on was then ordered to surrender to the Germans by Admiral Strazzeri. Reported destroyed during an air raid, later in the war.

FR 114 (ex-Espadon) ()13 Sep 1943Castellammare di Stabia13 Sep 1943ScuttledShe was being converted to a transport submarine when sunk by the Germans at Castellammare di Stabia.

H 6 (H6)13 Sep 19431205Bonifacio13 Sep 19431205BonifacioCaptured by the Germans and later sunk by gunfire.
  13 Sep 1943
1205 (e)

(0) Bonfacio harbour.
At 1205 hours, H.6 was in Bonifacio harbour when she was boarded by a party from the German minesweepers R-198 and R-161 (or R-200?) of the 11th.R-Flottille. The submarine was captured without resistance.

FR 115 (ex-Dauphin) ()15 Sep 1943Pozzuoli15 Sep 1943ScuttledAt Pozzuoli since at least 3rd September 1943. She was being converted to a transport submarine when sunk by the Germans. The wreck was sold on 16th January 1946.

Francesco Rismondo (ex-N.1, ex-Osvetnik) (RI)18 Sep 19431200Bonifacio18 Sep 19431200ScuttledScuttled at 1200 hours by the Germans.

Alpino Attilio Bagnolini (BI, I.12, UIT.22)14 Oct 1943Bordeaux14 Oct 1943BordeauxEntered service as UI-22 (later UIT 22) in the 12th U-Flotilla.

Antonio Bajamonti (ex-N.2, ex-Smeli) (BM)17 Nov 1943La Spezia17 Nov 1943La SpeziaReported raised.

CB 1 ()3 Dec 19433 Dec 1943According to an ULTRA signal, she flew the Rumanian flag on 3 December 1943.

CB 2 ()3 Dec 19433 Dec 1943According to an ULTRA signal they flew the Rumanian flag on 3 December 1943.

CB 3 ()3 Dec 19433 Dec 1943According to an ULTRA signal, she flew the Rumanian flag on 3rd December 943.

CB 4 ()3 Dec 19433 Dec 1943According to an ULTRA signal, she flew the Rumanian flag on 3rd December 1943.

CB 6 ()3 Dec 19433 Dec 1943According to an ULTRA signal, she flew the Rumanian flag on 3rd December 1943.

Nautilo (UIT-19)4 Dec 1943Venice4 Dec 1943TriestePassage Venice-Trieste, towed by tug Petronia with lighter and tanker Liguria, escorted by Medea (I.V.54).

Nautilo (UIT-19)9 Jan 1944Pola9 Jan 1944SunkSunk by USAAF (direct hit). Post-war was raised by the Yugoslav and became the Sava, served until 1971.
  9 Jan 19441100-1215
(0) Pola harbour.
During an raid by 107 Liberators of the USAAF 15th Air Force, escorted by 47 Thunderbolts and Lightnings, the German submarine UIT-19 (ex-Nautilo) was sunk.

CB 1 ()30 Jan 194430 Jan 1944Returned to the Italian Fascist Republic.

Reginaldo Giuliani (GN, I.14, UIT.23)14 Feb 1944Shonan (Singapore)15 Feb 19440822SunkSailed for Penang. Torpedoed by the British submarine HMS Tally-Ho in the Malacca Straits (thirty-four Germans and five Italians were killed, two Italians and twelve Germans including OL Striegler and were picked up by two Arados 196). Note: the Japanese had renamed Singapore "Shonan" (Light of the South).

Bronzo (BZ)17 Feb 194417 Feb 1944The French destroyer Forbin sailed from Algiers to Malta bringing the new crew for the ex-Bronzo. Renamed Narval II.

Grongo (GG)16 Mar 194416 Mar 1944Reported operational.

Murena (UIT-16)16 Mar 194416 Mar 1944Reported operational.

Sparide (UIT-15)16 Mar 194416 Mar 1944Reported operational.

R 8 (UIT.5)20 Apr 1944Monfalcone20 Apr 1944SunkSunk in an air raid from 15.USAAF.

CB 15 ()20 Apr 1944Monfalcone20 Apr 1944MonfalconeDestroyed by an air raid of 64 Liberators. Yet, German sources (T1022/1763, NARA) reports her being moved from Milan to Trieste on 25th May 1944.

CB 14 ()2 May 1944Pola2 May 1944PolaReported by the Germans to be ready with Italian crew, but under German orders.

CB 23 ()2 May 19442 May 1944Reported by the Germans to be ready with Italian crew, but under German orders. Apparently was to be transferred to La Spezia but perhaps went to an Adriatic port.

CB 7 ()12 May 1944Pola12 May 1944Date???PolaAt Pola damaged by air attack, not repaired.
  12 May 1944
(0) At Pola.
The midget submarine came under air attack and was damaged. The date is approximate and could be earlier.

She was deemed not worth repairing.

CB 13 ()12 May 1944Pola12 May 1944PolaAt Pola.
  12 May 1944
(0) At Pola.
The midget submarine came under air attack and was damaged. The date is approximate and could be earlier.

She was deemed not worth repairing. It is possible she was repaired later.

R 7 (UIT.4)25 May 1944Monfalcone25 May 1944SunkSunk in an air raid from 15.USAAF. As of 16 June 1944, damage had not yet been ascertained. Was to be raised and used for spare parts for UIT-6,

CM 2 ()25 May 1944Monfalcone25 May 1944MonfalconeAt Monfalcone during an air raid.

Beilul (BU)25 May 1944Monfalcone25 May 1944SunkSunk by air attack (see entry of 27th June for another source).
  25 May 1944
(0) At Monfalcone.
During the day, 61 Liberators, escorted by 47 Lightnings of the USAAF, conducted an air raid on Monfalcone. Beilul was reportedly destroyed during this air attack.

Giovanni Bausan (BN)9 Jun 1944Barletta9 Jun 1944Sunk as air target vesselUsed by A.S.V.-fitted Allied aircraft as target vessel while moored in 41°29.5'N, 16°20.5'E (10 miles north of Barletta). Her wreck was reported found in 1999 and reported in error to be that of HMS Regent. In 2020, it was examined again by a team led by Fabio Bisciotti.
  9 Jun 194441° 29'N, 16° 20'EThe submarine was towed by a tug and moored in this position to be used by A.S.V.-fitted Allied aircraft as target vessel. She sank some time after. The wreck was first located in 1999 and mistakenly identified as HMS Regent. It was visited again in 2020 by a team led by Fabio Bisciotti.

R 9 (UIT.6)16 Jun 1944Monfalcone16 Jun 1944MonfalconeUIT-6 is reported to be waiting for her auxiliary engines, completion date undetermined.

CB 6 ()20 Jun 1944Costanza20 Jun 1944CostanzaIn port.

CB 4 ()20 Jun 1944Costanza20 Jun 1944CostanzaIn port.
  20 Jun 1944
(0) At Costanza.
During the day, the midget submarines were anchored at Costanza, when they came under air attack from Soviet A-20 and Pe-2 bombers. CB 4 and CB 6 suffered some damage.
  20 Jun 1944
(0) At Costanza.
During the day, the midget submarines were anchored at Costanza when they came under air attack from Soviet A-20 and Pe-2 bombers. CB 4 and CB 6 suffered some damage.

Beilul (BU)27 Jun 1944Trieste27 Jun 1944SunkSunk by air attack (see also entry of 25th May for another source).

13.CB 3 ()1 Jul 1944Date???Sulina1 Jul 1944Date???SulinaPatrolled in July, uneventful. It is possible that CB 6 also made a sortie.

CB 6 ()1 Jul 1944Date approx.1 Jul 1944Possible sortie with another CB (?)

R 10 (UIT.1)12 Jul 1944La Spezia12 Jul 1944La SpeziaLaunched by the Germans.

Beilul (BU)18 Jul 194422 Jul 1944Beilul is mentioned in German documents without comments on her being lost on an earlier date.

R 10 (UIT.1)20 Jul 1944La Spezia20 Jul 1944GenoaTowed to Genoa to be completed.

Sparide (UIT-15)1 Aug 19440510Genoa1 Aug 19440555GenoaPassage Genoa-La Spezia towed by tugs Avylos and Gisbert and escorted by UJ-2216 and UJ-2220, M-7608, M-7012, M-7014, M-7015, R-162, R-189, R-200, R-212 and barges Gallieni and Curie, but then turned back (due to defects?).

CM 1 (UIT.17)1 Aug 1944Monfalcone1 Aug 1944MonfalconeCompleted at Monfalcone as UIT.17. Given to the RSI.

Sparide (UIT-15)3 Aug 19442100La Spezia4 Aug 1944Date???La SpeziaPassage La Spezia-Genoa towed by Polifemo escorted by UJ-2216 and UJ-2220, RA-255, KF-4523 and KF-4596 but turned back (due to defects?).

Sparide (UIT-15)7 Aug 19442100La Spezia8 Aug 19440540GenoaPassage La Spezia-Genoa, towed by Favignana with tugs Avylos and Gisbert, escorted by UJ-2216, UJ-2220, RA-253, RA-254, KF-4523, KF-4596, F-2488 and F-2759. Sparide was to have sailed on 29th July 1944, towed by the tug Avylos, but was delayed.

Murena (UIT-16)7 Aug 1944La Spezia9 Aug 1944GenoaPassage La Spezia-Genoa (Note: it is not clear why the passage took so long, dates may be incorrect?). It is also reported that she was moved to Genoa with Grongo and Sparide in May 1944.

14.CB 3 ()24 Aug 1944Costanza24 Aug 1944CostanzaCarried out an uneventful patrol.

CB 1 ()25 Aug 1944Costanza25 Aug 1944ScuttledSunk to avoid falling into Soviet hands.

CB 20 ()31 Aug 1944Date?Trieste31 Aug 1944Date?TriesteAt the end of August 1944 in Trieste.

Aradam (AR)4 Sep 1944Genoa4 Sep 1944GenoaShe was in the process of returning to service and had undergone trials in harbour on 18th August 1944, when she was sunk, along with submarines Grongo, Murena and Sparide, following an air raid by 168 B.17 bombers (USAAF) dropping a total of 1,965 500-lb bombs .

Sparide (UIT-15)4 Sep 1944Genoa4 Sep 1944SunkSunk by RAF or 15.USAAF (by 168 B.17 bombers which dropped 1965 x 500 lb bombs).Had been ready for special mission (carrying SLC) since 28th May 1944. On 23rd August 1944, the Germans had requested training crews for Grongo, Murena and Sparide.

R 10 (UIT.1)4 Sep 1944Genoa4 Sep 1944GenoaBombed and sunk (by 168 B.17 bombers which dropped 1965 x 500 lb bombs) .

R 11 (UIT.2)4 Sep 1944Genoa4 Sep 1944GenoaDamaged by air attack (by 168 B.17 bombers, which dropped 1965 500-lb bombs).

Wolframio (Volframio) (VO)4 Sep 1944La Spezia4 Sep 1944SunkSunk in an air raid at La Spezia.
  4 Sep 1944
(0) La Spezia harbour.
During an Allied air raid, Wolframio was bombed and sunk.

Grongo (GG)4 Sep 1944Genoa4 Sep 1944SunkSunk by RAF raid. The wreck was later broken up. On 23 August 1944, the Germans had requested training crews for Grongo, Murena and Sparide.
  4 Sep 1944
(0) Genoa harbour.
During an Allied air raid, UIT-20 (ex-Grongo) was sunk by bombs.

Murena (UIT-16)4 Sep 1944Genoa4 Sep 1944SunkSunk by RAF raid. Also reported as damaged in air raid. On 23rd August 1944, the Germans had requested training crews for Grongo, Murena and Sparide.
  4 Sep 1944
(0) Genoa harbour
During an air raid by Allied aircraft, UIT-16 (ex-Murena) was bombed and sunk.

CB 22 ()11 Mar 194511 Mar 1945Lussin PiccoloSunk by RAF fighter-bombers.

Litio (UIT-8)16 Mar 1945Monfalcone16 Mar 1945MonfalconeDamaged by air raid.

Sodio (UIT-9)16 Mar 1945Monfalcone16 Mar 1945MonfalconeDamaged by air raid.

R 9 (UIT.6)16 Mar 1945Monfalcone16 Mar 1945SunkBecame UIT-6. In September 1944 reported as not ready before early 1945 after UIT 4 would be raised (for parts). Sunk in an air raid by 37 and 50 Squadron (RAF). Also reported as scuttled on 1 May 1945.

CB 13 ()23 Mar 1945Pola23 Mar 1945PolaDamaged by bombs. Not repaired.

CB 14 ()23 Mar 1945Pola23 Mar 1945PolaDamaged during an air raid.

R 10 (UIT.1)24 Apr 1945La Spezia24 Apr 1945ScuttledScuttled near eastern breakwater(?) or bombed and sunk at Genoa on 4 September 1944 by USAAF (?).

R 11 (UIT.2)24 Apr 1945Genoa24 Apr 1945ScuttledDamaged by air raid on Genoa on 4 September 1944. Scuttled by the Germans. Later raised and became a floating oil tank GR.522.

R 12 (UIT.3)24 Apr 1945La Spezia or Genoa?24 Apr 1945ScuttledScuttled near eastern breakwater. Later raised and became a floating oil tank GR.523. Conning tower moved to Maricapitale (Caserna Angelo Paolucci, site of the Ufficio Storico Della Marina Militare) in 2011. Transferred to Gaeta in 2016 as part of a monument to submariners.

Ferro (UIT.12)1 May 1945Monfalcone1 May 1945DestroyedBlown up on slip by the Germans.

Litio (UIT-8)1 May 1945Monfalcone1 May 1945ScuttledScuttled by the Germans.

Piombo (UIT.13)1 May 1945Monfalcone1 May 1945DestroyedBlown up on slip by the Germans.

Potassio (UIT.10)1 May 1945Monfalcone1 May 1945DestroyedBlown up on slip by the Germans.

Rame (UIT.11)1 May 1945Monfalcone1 May 1945DestroyedBlown up on slip by the Germans.

Sodio (UIT-9)1 May 1945Monfalcone1 May 1945ScuttledScuttled by the Germans.

Zinco (UIT-14)1 May 1945Monfalcone1 May 1945DestroyedDestroyed on slip by the Germans.

CM 1 (UIT.17)2 May 1945Date???Pola3 May 19451830AnconaPassage Pola-Ancona. Had a crew of ten. Was considered for service in Leros. Reported blown up by German mine on 3rd May 1945, while attempting to escape from Pola to Venice but a C.M. submarine was also reported at Val di Figo (Pola) on 8th May 1945. One midget submarine arrived at Venice from Pola on 4th May 1945 and two more were mined en route.

CM 1 (UIT.17)5 May 1945Ancona7 May 1945Date???BariPassage Ancona-Bari, escorted by ML.361. A C.M. submarine was also reported at Val di Figo (Pola) on 8th May 1945.

Comandante Alfredo Cappellini (CL, I.4, UIT.24)6 May 1945Kobe6 May 1945KobeOn 10th May 1945, was taken over by the Imperial Japanese Navy and renamed I-503. She survived the war and was sunk off Kobe, by the United States Navy, on 16th April 1946.

300 entries. 299 total patrol entries (14 marked as war patrols) and 19 events.

Events listed for

GH 09.03.2021: This table kept here until we make fix the possible missing events in table above

SubmarineDateTimePositionDescription
Domenico Millelire16 Sep 19420109-034233.58 N, 22.55 E
Transformed as an oil depot, she was being towed to Navarino by the destroyer Saetta and escorted by the torpedo-boat Castelfidardo when they came under attack from Wellington bombers, which fired flares but do not appear to have dropped bombs.
Domenico Millelire12 Oct 19420020-013932.44 N, 23.46 E
While being towed by the destroyer Saetta, in company with Col Di Lana (the latter going to Piraeus) and escorted by the destroyer Freccia and the torpedo-boats Lupo and Antares, the convoy came under air attack. Domenico Millelire was undamaged, but Antares was hit by a bomb and had casualties.
Marcantonio Colonna9 Sep 1943(o) Genoa harbour.The submarine was scuttled as she could not sail after the Armistice. She was later raised by the Germans and broken up.
Giovanni Bausan9 Jun 194441.29.5 N, 16.20.5 E
The submarine was towed by a tug and moored in this position to be used by A.S.V.-fitted Allied aircraft as target vessel. She sank some time after. The wreck was first located in 1999 and mistakenly identified as HMS Regent. It was visited again in 2020 by a team led by Fabio Bisciotti.
H 613 Sep 1943
1205 (e)
(o) Bonfacio harbour.At 1205 hours, H.6 was in Bonifacio harbour when she was boarded by a party from the German minesweepers R-198 and R-161 (or R-200?) of the 11th.R-Flottille. The submarine was captured without resistance.
Beilul25 May 1944(o) At Monfalcone.During the day, 61 Liberators, escorted by 47 Lightnings of the USAAF, conducted an air raid on Monfalcone. Beilul was reportedly destroyed during this air attack.
Wolframio (Volframio)4 Sep 1944(o) La Spezia harbour.During an Allied air raid, Wolframio was bombed and sunk.
Grongo4 Sep 1944(o) Genoa harbour.During an Allied air raid, UIT-20 (ex-Grongo) was sunk by bombs.
Murena9 Sep 1943(o) La Spezia harbour.At the time of the Armistice, Murena could not sail to join the Allies and was scuttled by her crew. The engineer officer was trapped and drowned and 2° Capo Palombaro Ario Lazzari [who had participated in the attack on Gibraltar in May 1943] from the 10th MAS recovered the body. The submarine was later raised at towed to Genoa and became the German UIT-16.
Murena4 Sep 1944(o) Genoa harbourDuring an air raid by Allied aircraft, UIT-16 (ex-Murena) was bombed and sunk.
Nautilo9 Jan 19441100-1215(o) Pola harbour.During an raid by 107 Liberators of the USAAF 15th Air Force, escorted by 47 Thunderbolts and Lightnings, the German submarine UIT-19 (ex-Nautilo) was sunk.
Sparide6 Sep 1944(o) Genoa harbour.During a RAF raid, the German-controlled Sparide was sunk by bombs.
FR ? (ex. French Henri Poincaré)9 Sep 1943(o) Genoa harbour.The ex-French Henri Poincaré (she does not appeared to have been renamed) was scuttled as she could not sail at the time of the Armistice.
CB 420 Jun 1944(o) At Costanza.During the day, the midget submarines were anchored at Costanza, when they came under air attack from Soviet A-20 and Pe-2 bombers. CB 4 and CB 6 suffered some damage.
CB 420 Jun 1944(o) At Costanza.During the day, the midget submarines were anchored at Costanza when they came under air attack from Soviet A-20 and Pe-2 bombers. CB 4 and CB 6 suffered some damage.
CB 712 May 1944(o) At Pola.The midget submarine came under air attack and was damaged. The date is approximate and could be earlier.

She was deemed not worth repairing.
CB 1312 May 1944(o) At Pola.The midget submarine came under air attack and was damaged. The date is approximate and could be earlier.

She was deemed not worth repairing. It is possible she was repaired later.
Ex-French Calypso30 Jan 19432130(o) Ferryville harbour.At 1430 hours, the Italian freighter Noto (3,168 GRT, built 1938) carrying ammunition was hit by a bomb and set afire during an Allied air raid on Bizerta.

At 2100 hours, Noto blew up. The explosion fatally damaged the ex-French submarine Calypso (now under Italian colours) and she sank at 2130 hours.
Ex-French Nautilus16 Jan 19430430(o) At Ferryville.At 0430 hours, the ex-French submarine Nautilus, now under Italian colours, was damaged by bomb splinters when the harbour of Bizerta came under air attack.
Alpino Attilio Bagnolini18 Jul 19411310At 1310 hours, Bagnolini was ordered by BETASOM to 34°05'N, 10°35'W and proceeded.
Tricheco1800(o) Kaso StraitsDuring dinner, there was a fight between two ratings and one was severely injured. C.C.
Dandolo9 Jan 19441102
1124 (e)
(o) German Grid CH 9525.Goffredo Mameli observed an explosion 250-300 metres to starboard side and, shortly after, another about 250 metres to port. The escorting destroyer Grecale signalled that they were under air attack, but these were actually premature explosions from torpedoes fired by U-616 (OL Siegfried Koitschka). The Italians vessels were unaware that they had been under attack from a U-boat and, for security reasons, were diverted to Algiers.
Marea9 Jan 19411122
1124 (e)
(o) German Grid CH 9525.Goffredo Mameli observed an explosion 250-300 metres to starboard side and, shortly after, another about 250 metres to port. The escorting destroyer Grecale signalled that they were under air attack, but these were actually premature explosions from torpedoes fired by U-616 (OL Siegfried Koitschka). The Italians vessels were unaware that they had been under attack from a U-boat and, for security reasons, were diverted to Algiers.

Italian Commanders

Italian Submarines