Italian submarines in World War Two
Benedetto Brin (BR, I.23)
Benedetto Brin (USMM)
|Class||Brin 1 (14)|
|Laid down||3 Dec 1936||Cantieri Navale Tosi di Taranto, Taranto|
|Launched||3 Apr 1938|
|Commissioned||30 Jun 1938|
|Stricken||1 Feb 1948|
|History||In June 1943, was proposed to be used as a transport submarine, code name "AQUILA X". Stricken on 1st February 1948.|
|Commander||Date from||Date to||Command notes|
|C.C. Fausto Sestini||5 Jun 1940||18 Jun 1940|
|T.V. Luigi Longanesi Cattani||18 Jun 1940||6 Sep 1941|
|T.V. Luigi Andreotti||1 Nov 1941||30 Nov 1941|
|T.V. Leo Sposito||1 Dec 1941||3 Dec 1941|
|T.V. Luigi Andreotti||4 Dec 1941||13 Dec 1941|
|T.V. Leo Sposito||14 Dec 1941||31 Dec 1941|
|T.V. Luigi Andreotti||8 Jan 1942||23 Nov 1943|
|T.V. Carlo Imperiali||23 Nov 1943||Aug 1945|
|Date||Commander||Ship hit||Type||GRT||Nat.||Loss type|
|1.||13 Jun 1941||C.C. Luigi Longanesi Cattani||Djurdjura||Cargo ship||3,460||Sunk|
|2.||13 Jun 1941||C.C. Luigi Longanesi Cattani||Eirini Kyriakides||Cargo ship||3,781||Sunk|
Patrols and events
|Commander||Date||Time||Port||Arr. date||Arr. time||Arr. port||Miles||Description|
|1||Sestini, Fausto||9 Jun 1940||1422||Augusta||15 Jun 1940||0733||Augusta||915||Patrollled between Pantelleria and Tunisian coast near 36°50'N, 11°30'E.|
|13 Jun 1940||1404||36° 50'N, 11° 30'E|
|At 1404, two Italian torpedo-boats of the ALTAIR class were sighted at 4,000 metres, steering 180°, 24 knots. They were Antares and Aldebaran who had been ordered to destroy a derelict Greek freighter. The vessel was Makis (3,546 GRT, built 1906), mined near Pantelleria. The submarine saw them passing at a distance. The two torpedo boats dropped depth charges, but this is not recorded in the submarine report.|
|2||Longanesi Cattani, Luigi||18 Jun 1940||1452||Augusta||28 Jun 1940||1720||Augusta||1480||Patrolled off north coast of Crete. Apparently sighted only Greek ships and an unidentified destroyer.|
|18 Jun 1940||1708|
(0) 090° - San Croce Light (Augusta) - 15 miles.
|At 1708 hours, a torpedo wake was sighted. It appeared to be fired by a submarine from a distance of about 2,500 metres. This may have been HMS Grampus,, in which case she would have survived the attack of 16th June 1940. It could also be a porpoise, frequently mistaken for torpedoes by nervous lookouts. An occurrence which was not rare in the war.|
|24 Jun 1940||0115|
(0) 20 miles east of Cerigotto.
|At 0115 hours, a destroyer was sighted at 3,000 metres. Believing it had also been seen, Benedetto Brin was taken deep to 70 metres but no attack occurred.|
|3||Longanesi Cattani, Luigi||9 Jul 1940||0030||Augusta||12 Jul 1940||1004||Augusta||396||Patrolled in 36°50'N, 17°20'E.|
|9 Jul 1940||1054|
|At 1054 hours, an aircraft, believed to be a Hawker Osprey 4, was sighted at 6,000 metres, It strafed the submarine and Benedetto Brin replied with her machine guns. The conning tower was hit by a few machine gun rounds, but they caused no serious damage. The aircraft was also believed to have been hit and did not return to the attack.|
This was a Swordfish from the aircraft carrier HMS Eagle.
|9 Jul 1940||1254|
|At 1254 hours, a Sunderland aircraft was sighted at a distance of 4.000 metres. Benedetto Brin dived immediately to 60 metres and the bombs fell astern.|
The attack was carried out by Sunderland 'T' of 230 Squadron, piloted by Flying Lieutenant P.R. Woodward.It was carrying out a reconnaissance duriing the battle of Punto Stylo. It claimed a direct hit abaft the conning tower, but Benedetto Brin was unscathed.
|4||Longanesi Cattani, Luigi||15 Jul 1940||1312||Augusta||17 Jul 1940||1055||Augusta||322||Patrolled west of Malta. Uneventful.|
|Longanesi Cattani, Luigi||22 Jul 1940||1514||Augusta||22 Jul 1940||1723||Augusta||7||Exercises.|
|Longanesi Cattani, Luigi||25 Jul 1940||0800||Augusta||25 Jul 1940||1044||Augusta||8||Exercises.|
|Longanesi Cattani, Luigi||1 Aug 1940||1515||Augusta||1 Aug 1940||1640||Augusta||6,5||Exercises.|
|Longanesi Cattani, Luigi||10 Aug 1940||0827||Augusta||10 Aug 1940||1006||Augusta||7||Exercises.|
|Longanesi Cattani, Luigi||24 Aug 1940||0723||Augusta||25 Aug 1940||0840||Taranto||306||Passage Augusta-Taranto .|
|Longanesi Cattani, Luigi||5 Oct 1940||0845||Taranto||5 Oct 1940||1806||Taranto||50||Trials.|
|Longanesi Cattani, Luigi||9 Oct 1940||1020||Taranto||9 Oct 1940||1718||Taranto||52||Trials.|
|Longanesi Cattani, Luigi||18 Oct 1940||0846||Taranto||18 Oct 1940||1627||Taranto||38||Trials.|
|Longanesi Cattani, Luigi||21 Oct 1940||0845||Taranto||21 Oct 1940||1602||Taranto||4||Trials.|
|Longanesi Cattani, Luigi||25 Oct 1940||1005||Taranto||26 Oct 1940||1625||Messina||204||Passage Taranto-Messina.|
|5||Longanesi Cattani, Luigi||28 Oct 1940||2225||Messina||4 Nov 1940||1910||Tangiers||1346||On passage to Bordeaux, was attacked by two British destroyers at 1530 hours on 4th November, 2 miles from Cape Malabata, and damaged. Escaped to Tangiers. Passed Gibraltar on 3rd November 1940 [mileage from Taranto].|
|3 Nov 1940||2155|
(0) Straits of Gibraltar.
|At 2155 hours, a vessel initially believed to be a tug was sighted. It was later identified as a patrol vessel. The submarine submerged and took evading action.|
|3 Nov 1940||2305-0005/24|
(0) Straits of Gibraltar.
|At 2305 hours, a vessel was sighted at a distance of 4,000 metres. It was later identified as American and was left undisturbed.|
|4 Nov 1940||1530|
(0) 2 miles NE of Cape Malabata.
|At 1530 hours, after hitting the bottom twice, Benedetto Brin had come to periscope depth when the two destroyers were sighted. She tried to rest on the bottom again, but her battery had drained and she was forced to surface. The submarine was ready to fight it out but, realising she was near Cape Malabata, she raced toward Tangiers while one of the destroyers unsuccessfully attempted to ram her.|
|5b||Longanesi Cattani, Luigi||13 Dec 1940||0350||Tangiers||18 Dec 1940||1308||Le Verdon||927,5||Sailed from Tangiers with submarine Bianchi for Bordeaux.|
|18 Dec 1940||0555+||45° 28'N, 2° 27'W|
(0) 240. La Coubre Light - 35 miles.
|At 0550 hours, a submarine was encountered. It appeared to make a signal with a white light, which only partially corresponded with the recognition signal of the day. Benedetto Brin answered the signal.|
Five minutes later, the other submarine - this was HMS Tuna (Lt. Cdr. Cavenagh-Mainwaring, DSO, RN) - fired a shell across the bow of Benedetto Brin. T.V. Luigi Longanesi Cattani was still not sure of her identity. Aware of the presence in the area of the submarine Michele Bianchi, he was hesitant to act, fearing it might be a case of mistaken identity. He signaled "Sono un sommergibile Italiano" ("I am an Italian submarine") and Benedetto Brin turned to bring both of her guns to bear on the submarine.
As she made another recognition signal, it was correctly answered by another vessel at a longer distance straight ahead. At this moment, Longanesi Cattani understood that the distant vessel was Michele Bianchi and the submarine firing at her was indeed enemy. A second round fell at about 50 metres on the port side of Brin's conning tower. The Italian submarine had to turn to avoid a possible torpedo attack, but this maneuver prevented the use of her machine guns. The alteration of course must have been made just in time, as four underwater explosions were heard. These were correctly believed to be torpedoes exploding at the end of their run. At 0630 hours, two torpedo tracks were observed missing the stern as the Italian submarine took avoiding action.
HMS Tuna had fired a salvo of six torpedoes from 1,500 yards. Luckily for the Italian submarine, they all missed. The British submarine fired eight 4" rounds and claimed one hit, but in fact none of them found their mark. The action was observed from a distance by Michele Bianchi, but she could not intervene.
At 0640 hours, the British submarine was observed coming out from a fog bank at just 500 metres. Benedetto Brin altered course to starboard and at 0641 hours fired two stern torpedoes (533mm) and very quickly five rounds of 100mm, one of which was believed to have hit the enemy's bow (HMS Tuna was not hit). The enemy submarine then disappeared. Shortly after the action, two vessels were seen but they proved to be fishing boats.
|Longanesi Cattani, Luigi||19 Dec 1940||0350||Le Verdon||19 Dec 1940||1308||Pauillac||10||Passage Le Verdon-Pauillac.|
|Longanesi Cattani, Luigi||20 Dec 1940||0925||Pauillac||20 Dec 1940||1515||Pauillac||20||Passage Pauillac-Bordeaux but then turned back.|
|Longanesi Cattani, Luigi||22 Dec 1940||1104||Pauillac||22 Dec 1940||1404||Bordeaux||40||Passage Pauillac-Bordeaux.|
|Longanesi Cattani, Luigi||21 Feb 1941||1525||Bordeaux||21 Feb 1941||1945||Le Verdon||40||Passage Bordeaux-Le Verdon.|
|Longanesi Cattani, Luigi||23 Feb 1941||1220||Le Verdon||24 Feb 1941||0045||La Pallice||50||Passage Le Verdon-La Pallice with submarine Argo, escorted by the German minesweepers M-2, M-6 and M-21 and Sperrbrecher 16.|
|Longanesi Cattani, Luigi||25 Feb 1941||0845||La Pallice||25 Feb 1941||1600||La Pallice||?||Exercises at Le Pertuis d'Antioche. On her return, Brin met with Finzi which was arriving from Le Verdon and they reached La Pallice together.|
|6||Longanesi Cattani, Luigi||26 Feb 1941||1713||La Pallice||25 Mar 1941||1615||Bordeaux||4570||Sailed for patrol west of Ireland via 46°15'N, 09°00'W and 51°50'N, 18°00'W.|
|5 Mar 1941||1203|
|At 1203 hours, an aircraft was seen at a distance of 16 miles. Benedetto Brin dived slowly because of the heavy seas and had reached a depth of 25 metres when three bombs exploded at proximity. At 1215 hours, a fourth bomb exploded but far astern. |
The submarine moved at high speed underwater toward the sun for seven miles then surfaced at 1343 hours. An aircraft was seen in the distance but the submarine managed to move away without being seen.
In fact, two aircraft had been involved in the attack. The first was Sunderland 'B' of 10 Squadron (RAAF), piloted by Flying Officer V.A. Hodgkinson. It had spotted the submarine at 12 miles and closed quickly. When still at 6 miles, the submarine was observed to submerge. Four 450-lb depth charges were dropped from a height of 100 feet, two set at a depth of 100 feet and two at a depth of 150 feet. A patch of oil was observed. Shortly after, Whitley bomber 'K' of 502 Squadron appeared on the scene and dropped a single depth charge from a height of 150 feet, it was set at 100 feet. This was most probably the one that had been heard by Brin at 1215 hours.
The depth charges dropped by the Sunderland had indeed caused a small leak to one of the fuel tanks of the submarine. It was decided to switch the supply to this tank before all its fuel was lost.
|9 Mar 1941||1842||At 1842 hours, the submarine Velella was sighted and exchanged recognition signals.|
|19 Mar 1941||1110||At 1110 hours, Benedetto Brin was informed by BETASOM of the position of a convoy of 25 merchant ships with gunboats. The submarine altered course at 12 knots intending to intercept it at 1700 hours on the 20th.|
At 1810 hours on the 19th, another signal was received reporting a new position of the convoy and Brin altered course and speed reduced to 7 knots because of weather damage. The submarine arrived the next day at 1440 hours in the intercept position and cruised until 2200 hours, but sighted nothing.
|21 Mar 1941||1731||At 1504 hours, a signal from BETASOM was received reporting a convoy and Benedetto Brin was proceeding toward it, intending to intercept at 2000 hours.|
At 1731 hours, a submarine chaser was sighted and Brin dived.
At 1805 hours, depth-charges were heard at a distance and again at 2016 hours.
At 0010 hours on 22 March, the submarine received a signal reporting a new position for this convoy, but she was short of fuel and started her return voyage.
|Longanesi Cattani, Luigi||24 May 1941||0700||Bordeaux||25 May 1941||2030||Bordeaux||Sailed for trials off Le Verdon then returned to Bordeaux.|
|Longanesi Cattani, Luigi||27 May 1941||0820||Bordeaux||27 May 1941||Le Verdon||Passage Bordeaux-Le Verdon (dropped anchor awaiting escort).|
|7||Longanesi Cattani, Luigi||27 May 1941||2030||Le Verdon||20 Jun 1941||1640||Bordeaux||5764||Patrolled off Azores between 34°45'N and as far south as fuel permitted and between 11°15'W and 11°45'W [mileage from 24th May].|
|1 Jun 1941||1150||35° 57'N, 11° 00'W||At 1150 hours, a steamer was sighted at 22,000 metres. It was determined to be steering 085° at 12 knots.|
At 1525 hours, Benedetto Brin dived with the intention of carrying a stern attack.
At 1610 hours, from a distance of 3,000 metres she was recongnised to be Spanish.
At 1621 hours, she passed 500 metres astern the submarine and her name could be read. She was the Spanish Motomar (5,675 GRT, built 1921).
|3 Jun 1941||0945||23° 51'N, 8° 42'W||At 0945 hours, several fishing vessels and, shortly after, a steamer appeared. Benedetto Brin closed to investigate.|
At 1404 hours, the submarine submerged on an attacking course.
At 1510 hours, the vessel passed 400 metres astern and was recognised as the Spanish Marte (3,714 GRT, built 1900). The attack was aborted.
|5 Jun 1941||0730|
(0) 140° - Cape St. Vincent - 6 miles.
|At 0410 hours, two vessels were sighted and Benedetto Brin closed to 500 metres only to recognise them as submarine chasers. The submarine turned away to avoid them and moved 10 miles northward.|
At 0734 hours, a submarine chaser was sighted and at 0813 hours, five depth charges were heard exploding at a distance. It appeared to be hunting a submarine. Benedetto Brin reached the bottom at 89 metres.
At 1425 hours, propeller noises were heard this was followed by a single depth charge which exploded near the submarine.
At 1428 hours, the vessel returned and dropped another six depth charges which detonated very close to the submarine.
At 2330 hours, Benedetto Brin surfaced with all weapons at the ready and the destruction of secret documents prepared. The submarine chaser was sighted at 1,500 metres but did not notice the submarine who made good her escape.
|7 Jun 1941||0748||33° 54'N, 14° 36'W||At 0748 hours, a small convoy was sighted steering 250°, 8 knots. Benedetto Brin attempted to trail it but lost contact in a rain squall at 1100 hours.|
|7 Jun 1941||1154||33° 10'N, 15° 30'W||At 1154 hours, the submarine Mocenigo was encountered and exchanged recognition signals.|
|9 Jun 1941||1320|
|34° 16'N, 14° 28'W||At 1320 hours, an aircraft was seen at 6,000 metres, making directly for Benedetto Brin. C.C. Longanesi Cattani decided to fight it out on the surface and the submarine's Breda guns opened fire. The aircraft veered away, but circled the submarine outside the range of the machine guns. Longanesi Cattani hesitated to dive, fearing the aircraft would attack it at a vulnerable time.|
This was Catalina 'J' (AH553) of 202 Squadron, piloted by Flight Lieutenant E.M. Pain. It had spotted the U-boat steering 20° at 14 knots and reported it. It was taking photos and waiting for an opportunity to pounce.
At 1425 hours, Longanesi Cattani observed the aircraft making an attack run and four depth charges dropped. One exploded near the submarine but caused no damage. The aircraft appeared to have been hit by the antiaircraft fire. Flight Lieutenant Pain reported only three actually dropped, the fourth hung up but was dropped on a second run. It failed to explode.
At 1610 hours, a new attack was repelled by machine guns and judging the aircraft to be at the limit of its autonomy, Benedetto Brin finally dived and escaped.
|12 Jun 1941||1255||37° 25'N, 23° 15'W||The submarine had been ordered by BETASOM to a new position on 10th June.|
At 1255 hours on 12th June, the enemy convoy was sighted. The submarine tried to remain in contact by alternately submerging and running on the surface but finally lost contact at 2345 hours.
|13 Jun 1941||0515||38° 40'N, 24° 00'W||At 0440 hours, in in 38°34' N, 23°56' W, Benedetto Brin sighted the convoy in three columns. Earlier, she had received a signal from BETASOM ordering her with Veniero and Velella to proceed to 40°20' N, 25°00' W. This was convoy SL. 76 bound from Freetown to Liverpool. The submarine maneuvered for an attack with the intention to fire stern torpedoes at two steamers in the central column and bow torpedoes at steamers on the port column. C.C. Longanesi Cattani miscalculated and was forced to change his plans.|
At 0515 hours, two torpedoes were fired from the bow tubes at a steamer in the port column, but there was a premature explosion leading Longanesi Cattani to believe that the two torpedoes had collided (!). Very shortly after, two more torpedoes were launched from the bow tubes, aimed at another steamer on the port column. One torpedo misfired but the other appeared to hit the target after 23 seconds but the 4,000-ton vessel did not appear to sink and fired off rockets to give the alarm.
The target was the British steamer Ulla (1,575 GRT, built 1930). She had not been hit but had observed the torpedo missing under her keel. She was the fifth vessel in the seventh column between Djurdjura (fifth vessel in fifth column) and Eirini Kyriakides (fifth vessel in ninth column), which were both sunk shortly after. Sheridan, who was the fifth vessel in the eighth column, sighted the submarine at 0340 hours but her gun misfired.
|13 Jun 1941||0536-0538|
|38° 40'N, 24° 00'W||From 0536 to 0538 hours, Benedetto Brin launched four stern torpedoes aimed at three merchant ships in convoy SL. 76. Longanesi Cattani claimed that all four hits and the three merchant ships immediately sank. In fact two had been hit, the Free French Djurdjura (3460 GRT, built 1922), carrying iron ore from Pepel to Oban, and the Greek Eirini Kyriakides (3781 GRT, 1922) carrying iron ore from Lourençô Marques to Adrossan. Both sank.|
Djurdjura had a crew of thirty-eight, only five were saved. Eirini Kyriakides had a crew of thirty-one, none survived. The submarine then dived for eight hours to reload tubes and lost contact with the convoy.
At that time, it was the only instance of an Italian submarine penetrating a convoy for a successful attack.
|Longanesi Cattani, Luigi||8 Aug 1941||0830||Bordeaux||8 Aug 1941||1600||Le Verdon||Passage Bordeaux-Le Verdon.|
|Longanesi Cattani, Luigi||9 Aug 1941||0800||Le Verdon||9 Aug 1941||1650||La Pallice||Passage Le Verdon-La Pallice.|
|Longanesi Cattani, Luigi||12 Aug 1941||0800||La Pallice||12 Aug 1941||1130||La Pallice||Trials at Le Pertuis d'Antioche.|
|Longanesi Cattani, Luigi||12 Aug 1941||2004||La Pallice||16 Aug 1941||1830||Bordeaux||Sailed for Messina but turned back because of defects.|
|14 Aug 1941||1040||At 1040 hours, an aircraft of the Consolidated PBY 28 type was observed at 4,000 metres and the submarine dived.|
|15 Aug 1941||0830|
(e) 45° 02'N, 9° 02'W
(0) Italian Grid 2530/12.
|At 0830 hours, a submarine was sighted at 5,000 metres. It appeared similar to Velella and both submarines prudently dived. This was possibly HMS Parthian (Lt.Cdr. M.G. Rimington, DSO, RN) who sighted an unknown vessel and dived.|
|16 Aug 1941||0705|
(0) In the Searched Channel.
|At 0705 hours, the submarine Cappellini was encountered and exchanged recognition signals [the encounter is not mentioned in the Cappellini patrol report].|
|8||Longanesi Cattani, Luigi||20 Aug 1941||0900||Bordeaux||20 Aug 1941||Time?||Le Verdon.||Passage Bordeaux-Le Verdon.|
|8b||Longanesi Cattani, Luigi||20 Aug 1941||2100||Le Verdon||1 Sep 1941||1840||Messina||Passage Le Verdon-Messina. Passed Gibraltar on 28th August 1941.|
|24 Aug 1941||1300||At 1300 hours, a submarine chaser and aircraft were observed on the horizon. Benedetto Brin dived.|
|24 Aug 1941||1930|
(0) West of Gibraltar.
|At 1930 hours, an aircraft was seen and the submarine dived. Two explosions were heard at 2040 and 2041 hours.|
|8c||Longanesi Cattani, Luigi||3 Sep 1941||1245||Messina||4 Sep 1941||0945||Taranto||3922||Passage Messina-Taranto [mileage from Bordeaux].|
|Andreotti, Luigi||1 Nov 1941||Taranto||30 Nov 1941||Taranto||Refit in Taranto.|
|Sposito, Leo||1 Dec 1941||Taranto||3 Dec 1941||Taranto||Refit in Taranto.|
|Andreotti, Luigi||13 Dec 1941||0830||Taranto||13 Dec 1941||1530||Taranto||21||Trials with the submarine Bronzo, escorted by the auxiliary Dalmazia.|
|Sposito, Leo||17 Dec 1941||0846||Taranto||17 Dec 1941||1452||Taranto||25||Trials.|
|Sposito, Leo||24 Dec 1941||0835||Taranto||24 Dec 1941||1340||Taranto||20||Trials.|
|Sposito, Leo||31 Dec 1941||0914||Taranto||31 Dec 1941||1230||Taranto||30||Trials.|
|Andreotti, Luigi||7 Jan 1942||0925||Taranto||7 Jan 1942||0950||Taranto||Exercises.|
|Andreotti, Luigi||11 Jan 1942||1300||Taranto||11 Jan 1942||1740||Taranto||29||Exercises, escorted by the auxiliary Abbazia.|
|Andreotti, Luigi||13 Jan 1942||1300||Taranto||13 Jan 1942||1742||Taranto||26,5||Exercises, escorted by the pilot vessel Limbara.|
|Andreotti, Luigi||15 Jan 1942||0840||Taranto||15 Jan 1942||1455||Taranto||30,5||Exercises, escorted by the auxiliary Dalmazia.|
|Andreotti, Luigi||20 Jan 1942||1030||Taranto||23 Jan 1942||1428||Cagliari||780||Passage Taranto-Cagliari. During a crash-dive, a rating was injured by the conning tower hatch falling on him.|
|9||Andreotti, Luigi||28 Jan 1942||1413||Cagliari||28 Jan 1942||1849||Cagliari||55||Sailed for patrol between 37°50'N and 38°10'N, and between 05°30'E and 05°40'E with Alagi, Aradam, Turchese and Axum, but then recalled.|
|Andreotti, Luigi||5 Feb 1942||0850||Cagliari||5 Feb 1942||1720||Cagliari||Exercises, escorted by the minesweeper R.D.34.|
|10||Andreotti, Luigi||8 Feb 1942||2025||Cagliari||17 Feb 1942||1213||Cagliari||1256,2||Sailed with Alagi for patrol north of Cape de Fer, between African coast and 37°30'N, and between 06°20'E and 06°30'E.|
|9 Feb 1942||2200||37° 20'N, 6° 25'E|
(0) Approximate position.
|At 2200 hours, an illuminated vessel was sighted on a westerly course. She proved to be the French St. Étienne (1,971 GRT, built 1924).|
|10 Feb 1942||0440||37° 20'N, 6° 25'E|
(0) Approximate position.
|At 0440 hours, an illuminated vessel was sighted on a westerly course. She proved to be the French Sainte Marthe (4,702 GRT, built 1903).|
|10 Feb 1942||1535||37° 20'N, 6° 25'E|
(0) Approximate position.
|At 1535 hours, an unknown submarine was sighted at 10,000 metres. It was believed to be an Italian submarine from VII.Grupsom.|
At 1615 hours, the submarine was sighted again at 12,000 metres and was closed to 6,000 meters. It was identified as of the Alagi class.
|10 Feb 1942||1840||37° 20'N, 6° 25'E|
(0) Approximate position.
|At 1840 hours, an aircraft was sighted at 12,000 metres and the submarine dived.|
|10 Feb 1942||2009||37° 20'N, 6° 25'E|
(0) Approximate position.
|At 2009 hours, Benedetto Brin was informed of an enemy cruiser and a destroyer, sighted at 1205 hours on the previous day in Italian Grid 6291, steering 090°, 20 knots. The submarine proceeded to an intercept position, but sighted nothing. Two vessels were seen at 0015 hours on the 11th, hugging the coast and were presumed French.|
|16 Feb 1942||0700||37° 20'N, 6° 25'E|
(0) Approximate position.
|At 0700 hours, an illuminated French ship was observed. It was believed to be Château Larose (2,047 GRT, built 1930), as listed in the French calendar no. 29 and no action was taken.|
|11||Andreotti, Luigi||27 Feb 1942||1233||Cagliari||10 Mar 1942||1131||Cagliari||1667||Sailed with submarines Axum, Aradam and Turchese and patrolled south of Majorca and off Cape Falcon. Several neutral ships were observed.|
|6 Mar 1942||1815||36° 58'N, 0° 50'W||At 1815 hours, an enemy naval force was detected with hydrophones. It was steering 090°, which passed to the north of the submarine.|
|8 Mar 1942||0015||36° 42'N, 0° 34'W||At 0015 hours, an enemy naval force of five ships, probably destroyers, was sighted at a distance of 5,000 metres, steering 090°. The ships were too far to attack but, at 0032 hours, the second and fourth destroyers turned toward the submarine.|
Benedetto Brin dived immediately but was not attacked.
|12||Andreotti, Luigi||27 Mar 1942||2150||Cagliari||16 Apr 1942||2005||Cagliari||2579,1||Patrolled south of Majorca and off Cape Ferrat. Sighted French ships.|
|28 Mar 1942||1930||At 1930 hours, Benedetto Brin was informed by MARICOSOM (1718/28) of a naval force steering 090°, 16 knots. The force consisting of a battleship, two aircraft carriers and ten light units had been observed earlier in Italian Grid 2651/2 (37°23' N, 01°55' E). The submarine altered course to 180° to intercept it.|
|29 Mar 1942||0844||37° 48'N, 3° 06'E||At 0844 hours, five silhouettes were seen at 15,000 metres. Two of them were large, with an aircraft probably escorting them, which was sighted at 8,000 meters. The submarine dived immediately to periscope depth without seeing anything, but maintained hydrophone contact until 0950 hours. She then surfaced and made an enemy report.|
|30 Mar 1942||0645||At 0555 hours, a French ship was sighted and closed at 600 metres. It was identified as Oued Tiflet (1,190 GRT, built 1914). At 1420 hours, the submarine was ordered by MARICOSOM to move 40 miles to the south (to ca. 37°10' N).|
|31 Mar 1942||0255||36° 58'N, 3° 25'E||At 0135 hours, propeller sounds were heard on the hydrophones.|
At 0255 hours, the vessel was sighted and initially believed to be a medium-sized warship, but apparently it was a steamer. At 0300 hours, a second vessel appeared at a distance of 8-10,000 meters before disappearing westward.
|31 Mar 1942||0705|
|37° 05'N, 3° 18'E||At 0705 hours, Benedetto Brin was proceeding on the surface when an aircraft was sighted at 4,000 metres. It attacked. The submarine dived and when she reached a depth of 15 meters, a bomb exploded near her causing no damage.|
This was Catalina 'C' (AJ162) of 202 Squadron, piloted by light Lieutenant Melville-Jackson. Five seconds after the submarine had disappeared, it dropped four 250 lb MK VIII A/S bombs set to explode at a depth of 25 feet from an altitude of 200 feet.
|2 Apr 1942||0518||At 0518 hours, two vessels were sighted. Both proved to be French, the dredger Provence towed by the tug Gysbert.|
|9 Apr 1942||1110||At 1110 hours, Benedetto Brin was informed of a 5,000-ton light cruiser steering 270°, 22 knots sighted at 0800 hours in Italian Grid 3477/6 (8 miles east of Cani Island). The information was amplified by a second signal at 1415 hours and the submarine proceeded at a speed of 10-12 knots to intercept.|
|10 Apr 1942||0448||36° 45'N, 0° 36'W||At 0448 hours, propeller noises were heard and believed to be an enemy cruiser steering 260°. It passed out of range,|
|10 Apr 1942||1729||36° 06'N, 0° 44'W||At 1729 hours, hydrophone noises were heard and were believed to be two enemy cruisers (earlier reported by MARICOSOM) steering 050°. They passed out of range.|
|15 Apr 1942||1245||At 1045 hours, a vessel was sighted steering 340°. The submarine closed to 800 metres, identifying her as the French steamer Sainte Lucille (1,465 GRT, built 1917).|
|Andreotti, Luigi||4 May 1942||0810||Cagliari||4 May 1942||1155||Cagliari||Exercises.|
|13||Andreotti, Luigi||17 May 1942||1455||Cagliari||9 Jun 1942||0930||Cagliari||2027,8||Sailed via 37°40' N, 02°20' E for patrol between 36°50'N and 37°10'N, and between 01°20'E and 02°00'E. She was warned that one Italian submarine was 50 miles north of her and another 063° - 70 miles from her. At 2023 hours on the 17th, a signal from MARICOSOM made a modification to the order, by placing her in Grids 8765 and 8726 (between 38°20'N and 38°40' N, and between 02°20'E and 02°50'E). She was then ordered to leave this area at 2200 hours on the 20th and return to her original position. On 28th May, was ordered to move 50 miles east and 10 miles north (ca. 37°10' N, 02°42' E). At 1402 hours on the 30th, she was ordered to Grids 3342 and 3340 (probably ca. 37°00'N, 01°00'E).|
|18 May 1942||1220||At 1220 hours, an aircraft was sighted at 12,000 metres and the submarine dived.|
|18 May 1942||1625||At 1625 hours, an aircraft was sighted at 15,000 metres and the submarine dived.|
|18 May 1942||1900||At 1900 hours, an aircraft, probably of Botha type, was seen at 15,000 metres and the submarine dived.|
|3 Jun 1942||1220||36° 58'N, 1° 10'E||At 1220 hours, a cruiser was sighted (pages missing from the report).|
|7 Jun 1942||0402|
|37° 23'N, 2° 58'E||At 0402 hours, Benedetto Brin sighted an aircraft of the Stirling type, which proceeded to attack. The submarine was slightly damaged and claimed the aircraft damaged (details unknown, pages missing from the patrol report).|
This was Sunderland 'R' (W3983) of 10 Squadron (RAAF) piloted by Flight Lieutenant R.W. Marks. It had detected the submarine by radar at 3 miles. It dived from 1500 feet to a height of 100 feet, releasing a stick of eight depth charges, as the submarine put up a light antiaircraft defence. The submarine was strafed and the center of the DC stick fell about 30 yards on the submarine's port beam. Immediately after the attack, heavy vibration in the Sunderland as well as a back firing port engine caused the pilot to break off the engagement and return to base.
|7 Jun 1942||1207|
|37° 40'N, 4° 03'E||At 1207 hours, Benedetto Brin was again under air attack. Exact details from the submarine are not known as pages are missing from her patrol report. The aircraft was claimed to have been hit by the submarine machine guns. The submarine was slightly damaged.|
The aircraft was Sunderland 'M' of 202 Squadron, piloted by Flying Officer R.M. Corrie. It had sighted the submarine steering 80° at 14 knots, and made an attack from the stern. The depth charges failed to release on the first run, but the submarine was heavily strafed. The four depth charges were dropped on the second run but the aircraft was hit by the antiaircraft guns and one crew member was wounded. As the submarine submerged, four more depth charges were dropped about 13 seconds after it had disappeared. Despite having damaged aerials and wings, the Sunderland managed to reach its base.
|Andreotti, Luigi||28 Jun 1942||1015||Cagliari||29 Jun 1942||1010||Naples||294||Passage Cagliari-Naples. Uneventful.|
|Andreotti, Luigi||19 Jul 1942||1400||Naples||19 Jul 1942||1742||Naples||Exercises.|
|Andreotti, Luigi||24 Jul 1942||1005||Naples||25 Jul 1942||0840||Cagliari||295||Passage Naples-Cagliari.|
|14||Andreotti, Luigi||1 Aug 1942||1600||Cagliari||18 Aug 1942||2120||Cagliari||1903,2||Patrolled to the northwest of Cape Caxine, against expected convoys from Gibraltar. On 5th August, she was informed of a sortie of the aircraft carrier HMS Eagle, the light cruiser HMS Charybdis and four destroyers. On 11th August she was informed of a strongly escorted convoy (PEDESTAL). The same afternoon, her hydrophones detected noises and in the late evening, a destroyer was sighted. Brin was then told of a damaged aircraft carrier (Eagle) but no further visual contact was made. Her diesels emitted a lot of smoke and maximum speed was reduced from 12 to 11 knots.|
|5 Aug 1942||2216||At 2216 hours, Benedetto Brin was informed that a naval squadron, including the aircraft carrier HMS Eagle, had sailed eastward. No sighting or H.E. contact was made.|
|11 Aug 1942||0525||At 0525 hours, Benedetto Brin was informed of a heavily escorted convoy [this was the PEDESTAL convoy], sighted off Cape Ferrat, steering 090°. For the next hours the submarine altered between surface observation and listening with her hydrophones.|
|11 Aug 1942||2200||37° 10'N, 2° 30'E||At 2200 hours, a destroyer was sighted at 2,000 metres, steering 270° toward Benedetto Brin. The submarine dived immediately but was not attacked.|
|12 Aug 1942||0920|
(0) Italian Grid 2660.
|At 0920 hours, Benedetto Brin was at a depth of 45 metres, on a listening watch and heard several explosions until 1900 hours. The submarine returned to periscope depth at 1955 hours, but the horizon was empty.|
|13 Aug 1942||0030||At 0030 hours, Benedetto Brin was informed of a damaged aircraft carrier steering 210°, 10 knots. The submarine altered course to 270° to intercept but sighted nothing.|
|Andreotti, Luigi||3 Sep 1942||0815||Cagliari||3 Sep 1942||1240||Cagliari||27,5||Exercises.|
|Andreotti, Luigi||8 Sep 1942||0811||Cagliari||8 Sep 1942||1156||Cagliari||29,5||Exercises.|
|Andreotti, Luigi||29 Sep 1942||1400||Cagliari||29 Sep 1942||1756||Cagliari||25,3||Exercises.|
|Andreotti, Luigi||17 Oct 1942||0800||Cagliari||17 Oct 1942||1214||Cagliari||25,7||Exercises.|
|15||Andreotti, Luigi||17 Oct 1942||1810||Cagliari||31 Oct 1942||1343||Cagliari||1773,5||Patrolled north of Cape Como (Island of Ibiza) ca. 38°40'N, 01°00'E.|
|18 Oct 1942||1100||At 1100 hours, an aircraft was seen at 10,000 metres and the submarine dived.|
|25 Oct 1942||1403||37° 30'N, 1° 55'E||At 1403 hours, two aircraft were seen and the submarine dived.|
|26 Oct 1942||0605||38° 47'N, 1° 05'E||At 0605 hours, a submarine of the CORALLO class was sighted at 10,000 metres. Benedetto Brin turned away and, at 0620 hours, lost sight of the submarine.|
|27 Oct 1942||1245||39° 10'N, 1° 19'E||At 1235 hours, noises were heard on the hydrophones and ten minutes later, a fishing vessel was sighted steering 140°.|
|30 Oct 1942||0740||38° 48'N, 3° 08'E||At 0740 hours, a submarine, which could not be identified but was believed to be the Italian Emo, was sighted at a distance of 5,000 metres on a parallel course. At 1200 hours, it had disappeared from sight.|
|30 Oct 1942||1402||38° 48'N, 4° 13'E||At 1402 hours, a steamer was sighted steering 330°.|
At 1423 hours, Benedetto Brin was trying to close, but was briefly forced to submerge by an aircraft sighted at 8,000 metres.
At 1510 hours, the submarine had closed enough the vessel to identify her as the French steamer Hebe (1,684 GRT, built 1920) now steering 340°. She had been announced on the French calendar of merchant traffic no. 27.
|30 Oct 1942||1423||38° 48'N, 4° 13'E||At 1423 hours, an aircraft was seen at 8,000 metres and the submarine dived.|
|16||Andreotti, Luigi||7 Nov 1942||0340||Cagliari||17 Nov 1942||0802||Cagliari||1485||Patrolled off Bougie. On 15th November, she attacked a small vessel without success.|
|8 Nov 1942||2212||37° 35'N, 6° 29'E||At 2212 hours, a submarine was sighted, steering 200°. This was probably Velella. Benedetto Brin turned away.|
|11 Nov 1942||1920||38° 10'N, 6° 30'E||At 1920 hours, an aircraft was seen at 500 metres without any action being taken.|
|12 Nov 1942||2008||38° 10'N, 6° 30'E||At 2008 hours, a submarine was sighted on parallel course. Benedetto Brin turned away.|
|13 Nov 1942||0455||At 0455 hours, a corvette was sighted steering 180°. Benedetto Brin turned away.|
|13 Nov 1942||0520||36° 45'N, 5° 08'E||At 0520 hours, two corvette were sighted steering 180°. Benedetto Brin turned away.|
|13 Nov 1942||1325|
(0) Off Bougie.
|At 1325 hours, an aircraft was sighted at 8,000 metres and the submarine dived.|
|14 Nov 1942||1411|
(0) Off Bougie.
|At 1411 hours, two aircraft were sighted at 10,000 metres and the submarine dived.|
|14 Nov 1942||1452|
(0) Off Bougie.
|At 1452 hours, an aircraft was sighted at 8,000 metres and the submarine dived.|
|14 Nov 1942||1850|
(0) Off Bougie.
|At 1850 hours, a submarine was sighted steering 250°. Benedetto Brin countinued on her way to Bougie.|
|15 Nov 1942||0158||36° 49'N, 5° 34'E||At 0137 hours, a shadow was sighted at 4,500 metres, silhouetted against the coast. Benedetto Brin closed at 10 knots so that her wake would not be visible.|
At 0151 hours, the range had closed to 800-1,000 metres and the vessel was at first identified as a medium sized motor vessel. Three torpedoes (533mm, S.I.C. type) were fired at 2-second intervals, set at a depth of 5 metres, from a distance of 500 metres. They all missed. The rapid acceleration of the vessel led T.V. Andreotti believe the target was actually a small patrol vessels and he prudently withdrew.
There is an outside possibility that the target was the cased petrol vessel Coxwold (1,124 GRT, built 1938) who sailed unescorted on that day from Bougie for Bone, or Pozarica (1,893 GRT, built 1938) who arrived with escorts at Bougie. However the description of the target seems to indicate a smaller vessel.
|Andreotti, Luigi||18 Nov 1942||1616||Cagliari||19 Nov 1942||1858||Naples||296||Passage Cagliari-Naples then refit.|
|Andreotti, Luigi||16 Feb 1943||1000||Naples||16 Feb 1943||1445||Naples||28||Exercises.|
|Andreotti, Luigi||20 Feb 1943||0920||Naples||20 Feb 1943||1159||Naples||25||Exercises.|
|Andreotti, Luigi||22 Feb 1943||1135||Naples||22 Feb 1943||2140||Naples||41||Exercises with the torpedo boat Cigno.|
|Andreotti, Luigi||25 Feb 1943||1338||Naples||25 Feb 1943||1730||Naples||1,5||Gyrocompass tests.|
|Andreotti, Luigi||26 Feb 1943||1202||Naples||26 Feb 1943||1630||Naples||21||Exercises.|
|Andreotti, Luigi||28 Feb 1943||0715||Naples||1 Mar 1943||0935||Cagliari||279||Passage Naples-Cagliari.|
|Andreotti, Luigi||1 Mar 1943||1814||Cagliari||2 Mar 1943||0800||Cagliari||12||Exercises.|
|17||Andreotti, Luigi||2 Mar 1943||1606||Cagliari||21 Mar 1943||0805||La Maddalena||2208,5||Patrolled off Cape Carbon, intially between 37°00'N and 37°40'N, and between 05°00'E and 05°40'E and then between 38°20 'N and the African coast, and between 04°40'E and 05°20'E. She reported being the target of several depth charge attacks, but none are confirmed in Allied documents.|
|7 Mar 1943||0855-1921||37° 00'N, 5° 00'E|
|Between 0855 and 1921 hours, Benedetto Brin appeared to have been the subject of a long hunt by A/S vessels and aircraft. She escaped damage.|
|11 Mar 1943||0434||37° 37'N, 5° 13'E||At 0434 hours, two corvettes were sighted at 500 metres and Benedetto Brin turned away.|
|14 Mar 1943||0720||37° 32'N, 5° 11'E||At 0720 hours, a destroyer was sighted at 7,000 metres and a minute later Benedetto Brin dived.|
|18 Mar 1943||1048-1430||37° 52'N, 5° 20'E||Between 1048 and 1430 hours, Benedetto Brin appeared to have been the subject of a hunt by A/S vessels and aircraft. She escaped damage.|
|Andreotti, Luigi||3 Apr 1943||1200||La Maddalena||4 Apr 1943||0815||Naples||238,1||Passage La Maddalena-Naples.|
|Andreotti, Luigi||9 Apr 1943||0715||Naples||9 Apr 1943||0830||Castellammare di Stabia||13||Passage Naples-Castellammare di Stabia.|
|Andreotti, Luigi||11 Apr 1943||1100||Castellammare di Stabia||11 Apr 1943||1200||Castellammare di Stabia||4,2||Trials.|
|18||Andreotti, Luigi||11 Apr 1943||2300||Castellammare di Stabia||17 Apr 1943||0930||La Maddalena||1020,3||Patrolled west of Sardinia, between 39°40'N and 40°00'N, and between 07°40'E and 08°10'E.|
|12 Apr 1943||0630-1430||From 0630 to 1430 hours, a submarine of the ARGENTO class was seen on parallel course. This was probably Platino.|
|Andreotti, Luigi||20 Apr 1943||0200||La Maddalena||21 Apr 1943||0710||Naples||238||Passage La Maddalena-Naples.|
|Andreotti, Luigi||26 Apr 1943||0806||Naples||26 Apr 1943||1130||Naples||27||Exercises.|
|Andreotti, Luigi||27 Apr 1943||0000||Naples||28 Apr 1943||0632||La Maddalena||239,7||Passage Naples-La Maddalena.|
|Andreotti, Luigi||18 May 1943||0615||Villamarina (La Maddalena)||18 May 1943||1115||Ajaccio||65||Passage La Maddalena-Ajaccio.|
|19||Andreotti, Luigi||29 May 1943||2150||Ajaccio||13 Jun 1943||1024||La Maddalena||1566,2||Patrolled off Bougie, between 38°40'N and 39°20'N, and between 05°40'E and 06°20'E.|
|10 Jun 1943||2208|
|37° 10'N, 5° 30'E||At 2204 hours, Benedetto Brin surfaced in the midst of a convoy. It had not been detected by hydrophones. This was convoy G.T.X.2 from Algiers and had ships headed for Bone, Bougie, Phlippeville, Malta and Tunis.|
At 2208 hours, four torpedoes (533mm, Italian, 45-knot type) were fired from the stern tubes at a distance of 1500 metres at 3-second intervals. They were aimed at a freighter and a tanker presenting a continuous target. Two explosions were sighted after 80 seconds give a running range of 1,700 metres. The freighter took a port list.
At 2213 hours, four torpedoes were to follow from the bow tubes (533mm, G7e, 28-knots), but one of them misfired and only three were launched at 3-second intervals from a distance of 1,000 metres. Two more hits were heard. Thirty seconds, after the firing, a destroyer was observed dangerously close. Benedetto Brin went down to 50 metres and six depth charges were heard. They were followed by six more at 2225 hours and another five at 2306 hours. The submarine was only slightly damaged.
The identity of the stricken vessel has not been confirmed. Yet, HMS Wishart reported that a ship had been torpedoed. The tug Empire Gnome was sent from Bougie to assist, but was recalled when the destroyer signalled that the ship had sunk and she was searching for survivors.
|Andreotti, Luigi||14 Jun 1943||2010||Villamarina (La Maddalena)||16 Jun 1943||0652||Naples||239,5||Passage La Maddalena-Naples.|
|Andreotti, Luigi||22 Jun 1943||1400||Naples||22 Jun 1943||1550||Catellamare di Stabbia||11||Passage Naples-Catellamare di Stabbia.|
|Andreotti, Luigi||3 Jul 1943||0811||Castellamare di Stabbia||3 Jul 1943||1159||Castellamare di Stabbia||52,5||Passage Castellamare di Stabbia-Pozzuoliand return.|
|Andreotti, Luigi||3 Jul 1943||1608||Castellamare di Stabbia||3 Jul 1943||1726||Naples||13||Passage Castellamare di Stabbia-Naples.|
|Andreotti, Luigi||4 Jul 1943||0127||Naples||5 Jul 1943||0710||La Maddalena||226||Passage Naples-La Maddalena.|
|Andreotti, Luigi||5 Jul 1943||1752||La Maddalena||5 Jul 1943||2005||Bonifacio||25||Passage La Maddalena-Bonifacio.|
|20||Andreotti, Luigi||10 Jul 1943||0350||Bonifacio||15 Jul 1943||0716||Naples||822||Sailed via west coast of Sardinia. Patrolled in zone 103 [between 37°40'N and 38°00'N, and between 08°40'E and 09°00'E]. At 1310 hours on the 10th, she received MARICOSOM orders (TG 1201/10) to switch patrol to zones 173 [between 38°25'N and 38°35'N, and between 12°40'E and 13°00'E], 174 [between 38°15'N and 38°25'N, and between 12°40'E and 12°50'E] and 175 [between 38°15'N and 38°25'N, and between 12°50'E and 13°05'E]. At 2345 hours on the 10th, MARICOSOM ordered her to occupy the northern half of 82 [between 37°05'N and 37°10'N, and between 15°20'E and 15°40'E]. At 0022 hours on the 11th she received MARICOSOM orders (TG 2251/10) to proceed to zone 82 [between 37°00'N and 37°10'N, and between 15°20'E amd 15°40'E] via 39°00'N, 15°00'E and point M 3 (Cape Vaticano) then directly through the Strait of Messina to patrol area, escorted by the corvette Gabbiano. At 1842 hours on the 11th MARICOSOM ordered her to occupy the northern half of zone 81 [between 37°15'N and 37°20'N, and between 15°20'E and 15°40'E].|
|10 Jul 1943||0820||41° 15'N, 8° 13'E||At 0820 hours, an Italian submarine was observed at a distance of 7,000 metres,steering 230°. Benedetto Brin did not make contact.|
|10 Jul 1943||0935||40° 58'N, 8° 00'E||At 1025 hours, an Italian bomber was seen. steering 70° at height of 500 metres.|
|10 Jul 1943||0935||40° 28'N, 7° 50'E||At 1315 hours, an Italian aircraft was seen at 6,000 metres flying at a height of 200 metres.|
|11 Jul 1943||1110||38° 32'N, 9° 59'E||At 1110 hours, the conning tower of a submarine was observed at 10,000 metres. Her route could not be ascertained and she dived quickly after . This was possibly Turchese. Benedetto Brin remained on the surface. Her diesels were smoking heavily and the head of cylinder no.1 was broken. She finally submerged at 1308 hours.|
|11 Jul 1943||1722||38° 37'N, 11° 01'E||At 1722 hours, an American four-engine bomber was sighted at a distance of 5,000 metres flying at a height of 100 metres. It made straight for the submarine, but at a distance of 3,000 metres it made a large circle. Benedetto Brin seized the opportunity to crash dive|
|12 Jul 1943||1039||38° 45'N, 12° 50'E||At 1039 hours, an aircraft was seen at 10,000 metres and the submarine dived.|
|13 Jul 1943||0040||39° 04'N, 14° 09'E||At 0040 hours, flares were observed and Benedetto Brin dived.|
|13 Jul 1943||1323||38° 59'N, 14° 56'E||At 1323 hours, an aircraft was seen at 6,000 metres and the submarine dived.|
|13 Jul 1943||1636||39° 02'N, 15° 10'E||At 1636 hours, an aircraft was seen at 10,000 metres and the submarine dived.|
|13 Jul 1943||2050|
|38° 35'N, 15° 50'E||At 2050 hours, Benedetto Brin sighted three torpedo tracks, believed to have been fired from a distance of about 3,000 metres by a submerged submarine. The Italian submarine took evasive action and they missed just a few metres ahead.|
The attack had been carried out by HMS Unruly (Lt. J.P. Fyfe, RN). It had sighted Benedetto Brin steering 140° on the surface at 11 knots (she was actually making 8 knots) and fired a full salvo of four torpedoes from a distance of 3,000 yards and claimed one hit. The torpedoes had exploded on the coast. For a long time, HMS Unruly was credited with sinking the submarine Acciaio. Although, the U-boat assessment Committee had concluded at the time: "U-boat present. No damage".
There is no doubt she had attacked Benedetto Brin and had missed. The Italian submarine had developed defects in its starboard diesel and Andreotti decided to return to Naples.
|14 Jul 1943||0050||38° 41'N, 15° 42'E||At 0050 hours, an Italian corvette was sighted at 2,000 metres. She was probably Gabbiano.|
|14 Jul 1943||0250-0305||38° 50'N, 15° 35'E||At 0250 hours, Benedetto Brin sighted a submarine steering 120° at 5 knots at a distance of 2,500 metres.|
At 0305 hours, the range had closed to 1,000 metres, when the submarine dived before T.V. Andreotti could take offensive action. This was probably HMS Unruly who reported diving at 0240 hours. HMS Ultor was also in the vicinity but had dived at 0021 hours.
|14 Jul 1943||1520||39° 56'N, 14° 33'E||At 1520 hours, an aircraft was seen at 8,000 metres and the submarine dived.|
|Andreotti, Luigi||20 Jul 1943||1835||Naples||20 Jul 1943||2115||Pozzuoli||11,5||Passage Naples-Pozzuoli.|
|Andreotti, Luigi||1 Aug 1943||0900||Pozzuol||1 Aug 1943||1230||Pozzuoli||31||Exercises.|
|Andreotti, Luigi||20 Aug 1943||1330||Pozzuol||20 Aug 1943||1730||Pozzuoli||36||Exercises.|
|Andreotti, Luigi||27 Aug 1943||1300||Pozzuoli||27 Aug 1943||1430||Naples||13||Passage Pozzuoli-Naples.|
|21||Andreotti, Luigi||3 Sep 1943||0226||Naples||5 Sep 1943||1002||Naples||264,2||Patrolled off Salerno.|
|22||Andreotti, Luigi||7 Sep 1943||1445||Naples||11 Sep 1943||1815||Bone||735||Sailed for patrol off Salerno. When the armistice was announced, she was ordered to Bone. Met HMS HMS Eclipse at 2214 hours on the 9th in 40°15'N, 13°25'E and was directed to Bone.|
|7 Sep 1943||2005|
|At 2005 hours, the submarine Velella, proceeding 4,000 metres ahead of Benedetto Brin, was observed blowing up with three torpedo hits. There were no survivors.|
|9 Sep 1943||1310||40° 02'N, 14° 20'E||At 1310 hours, Benedetto Brin, proceeding in company of Galatea toward Bone, sighted a naval formation which could not be identified.|
|9 Sep 1943||1545||40° 14'N, 13° 56'E||At 1545 hours, Benedetto Brin and Galatea encountered the British MTB 266. She ordered them to proceed to Palermo but they declined, as their orders were to surrender at Bone. They resumed their passage.|
|9 Sep 1943||2126|
|40° 44'N, 13° 00'E||At 2126 hours, a British destroyer was encountered (this was HMS Eclipse). Again Benedetto Brin and Galatea were ordered to proceed to Palermo and again the Italians refused. T.V. Cruciani of Galatea went aboard HMS Eclipse to discuss their situation and finally the two submarines were allowed to resume their passage to Bone.|
|10 Sep 1943||1016||41° 54'N, 11° 46'E||At 1016 hours, six unidentified aircraft were seen but nothing occurred.|
|11 Sep 1943||1422||37° 15'N, 8° 09'E||At 1422 hours, two British fighters were seen. The two Italian submarines continued on their route undisturbed.|
|Andreotti, Luigi||14 Sep 1943||1324||Bone||16 Sep 1943||1130||Malta||356||Passage Bone-Malta with the submarines Alagi, Giada, Platino, Galatea, Marea, Menotti and Turchese escorted by the destroyer HMS Isis.|
|Andreotti, Luigi||2 Oct 1943||1310||Saint Paul (Malta)||2 Oct 1943||1515||La Valetta (Malta)||12||Passage San Paolo-Valetta (Malta).|
|Andreotti, Luigi||19 Nov 1943||1615||La Valetta (Malta)||20 Nov 1943||0930||Augusta||Passage Malta-Augusta with the submarines Settembrini, Squalo and Bandiera escorted by the corvette Chimera.|
|Imperiali, Carlo||6 Dec 1943||0655||Augusta||7 Dec 1943||1731||Taranto||285||Passage Augusta-Taranto with the submarines Dandolo, Giada and Mameli, escorted by torpedo boats Aliseo, Fortunale, Riboty, Abba, the corvette Urania and the armed trawler HMS Grilse with convoy AH.11.|
|Imperiali, Carlo||3 Apr 1944||0945||Taranto||3 Apr 1944||1700||Taranto||48,3||Trials.|
|Imperiali, Carlo||8 Apr 1944||0841||Taranto||8 Apr 1944||1442||Taranto||70,9||Trials.|
|Imperiali, Carlo||12 Apr 1944||1300||Taranto||12 Apr 1944||1518||Taranto||10,7||Trials.|
|Imperiali, Carlo||13 Apr 1944||0754||Taranto||13 Apr 1944||1720||Taranto||109,3||Trials.|
|Imperiali, Carlo||15 Apr 1944||1000||Taranto||16 Apr 1944||0719||Augusta||247,1||Passage Taranto-Augusta.|
|Imperiali, Carlo||16 Apr 1944||1100||Augusta||16 Apr 1944||2005||Malta||121,5||Passage Augusta-Malta.|
|Imperiali, Carlo||19 Apr 1944||0550||Malta||22 Apr 1944||1915||Port Said||1053,9||Passage Malta-Port Said.|
|Imperiali, Carlo||23 Apr 1944||0536||Port Said||23 Apr 1944||1444||Suez||89||Passage Port Said-Suez.|
|Imperiali, Carlo||25 Apr 1944||1035||Suez||28 Apr 1944||2210||Massawa||890,7||Passage Suez-Massawa.|
|Imperiali, Carlo||16 May 1944||1025||Massawa||18 May 1944||0750||Aden||467,1||Passage Massawa-Aden.|
|Imperiali, Carlo||20 May 1944||1700||Aden||29 May 1944||1545||Colombo||2066,3||Passage Aden-Colombo.|
|Imperiali, Carlo||7 Jun 1944||0745||Colombo||7 Jun 1944||1930||Colombo||89,5||Exercises.|
|Imperiali, Carlo||8 Jun 1944||0730||Colombo||8 Jun 1944||1720||Colombo||63,8||Exercises.|
|Imperiali, Carlo||9 Jun 1944||0825||Colombo||9 Jun 1944||1855||Colombo||87||Exercises.|
|Imperiali, Carlo||10 Jun 1944||0735||Colombo||10 Jun 1944||1900||Colombo||91,5||Exercises.|
|Imperiali, Carlo||13 Jun 1944||0722||Colombo||13 Jun 1944||1840||Colombo||74,5||Exercises.|
|Imperiali, Carlo||14 Jun 1944||0725||Colombo||14 Jun 1944||1827||Colombo||86,1||Exercises.|
|Imperiali, Carlo||15 Jun 1944||0734||Colombo||15 Jun 1944||1840||Colombo||94,9||Exercises.|
|Imperiali, Carlo||16 Jun 1944||0735||Colombo||16 Jun 1944||1450||Colombo||46,5||Exercises.|
|Imperiali, Carlo||22 Jun 1944||0725||Colombo||22 Jun 1944||1405||Colombo||51,5||Exercises.|
|Imperiali, Carlo||23 Jun 1944||0730||Colombo||23 Jun 1944||1350||Colombo||53,5||Exercises.|
|Imperiali, Carlo||26 Jun 1944||0737||Colombo||26 Jun 1944||1750||Colombo||58||Exercises.|
|Imperiali, Carlo||27 Jun 1944||0740||Colombo||27 Jun 1944||2250||Colombo||119,5||Exercises.|
|Imperiali, Carlo||28 Jun 1944||1215||Colombo||28 Jun 1944||1840||Colombo||44,6||Exercises.|
|Imperiali, Carlo||6 Jul 1944||0735||Colombo||6 Jul 1944||1815||Colombo||71||Exercises.|
|Imperiali, Carlo||7 Jul 1944||0730||Colombo||7 Jul 1944||1810||Colombo||62,7||Exercises.|
|Imperiali, Carlo||8 Jul 1944||0730||Colombo||8 Jul 1944||1807||Colombo||76||Exercises.|
|Imperiali, Carlo||10 Jul 1944||0735||Colombo||10 Jul 1944||1651||Colombo||60||Exercises.|
|Imperiali, Carlo||11 Jul 1944||1123||Colombo||11 Jul 1944||1825||Colombo||44,2||Exercises.|
|Imperiali, Carlo||12 Jul 1944||0732||Colombo||12 Jul 1944||1935||Colombo||71,3||Exercises.|
|Imperiali, Carlo||13 Jul 1944||0700||Colombo||13 Jul 1944||1444||Colombo||36,6||Exercises.|
|Imperiali, Carlo||14 Jul 1944||1125||Colombo||14 Jul 1944||1835||Colombo||46,7||Exercises.|
|Imperiali, Carlo||22 Jul 1944||0730||Colombo||22 Jul 1944||1320||Colombo||41,5||Exercises.|
|Imperiali, Carlo||28 Jul 1944||0635||Colombo||29 Jul 1944||1150||Colombo||143,5||Exercises.|
|Imperiali, Carlo||2 Aug 1944||0710||Colombo||2 Aug 1944||1925||Colombo||67,7||Exercises.|
|Imperiali, Carlo||3 Aug 1944||0700||Colombo||3 Aug 1944||1945||Colombo||68,5||Exercises.|
|Imperiali, Carlo||4 Aug 1944||0656||Colombo||5 Aug 1944||0145||Colombo||135||Exercises.|
|Imperiali, Carlo||5 Aug 1944||0711||Colombo||5 Aug 1944||1959||Colombo||81,7||Exercises.|
|Imperiali, Carlo||7 Aug 1944||0700||Colombo||7 Aug 1944||2100||Colombo||57,4||Exercises.|
|Imperiali, Carlo||10 Aug 1944||0900||Colombo||10 Aug 1944||1118||Colombo||18,5||Trials.|
|Imperiali, Carlo||15 Aug 1944||1110||Colombo||15 Aug 1944||1850||Colombo||56||Exercises.|
|Imperiali, Carlo||16 Aug 1944||0700||Colombo||16 Aug 1944||1852||Colombo||81,2||Exercises.|
|Imperiali, Carlo||17 Aug 1944||0700||Colombo||17 Aug 1944||1900||Colombo||82,2||Exercises.|
|Imperiali, Carlo||18 Aug 1944||0700||Colombo||18 Aug 1944||1433||Colombo||40||Exercises.|
|Imperiali, Carlo||20 Oct 1944||1400||Colombo||20 Oct 1944||1854||Colombo||34,5||Trials.|
|Imperiali, Carlo||22 Oct 1944||0754||Colombo||22 Oct 1944||1450||Colombo||40,8||Exercises.|
|Imperiali, Carlo||23 Oct 1944||0753||Colombo||23 Oct 1944||1829||Colombo||56||Exercises.|
|Imperiali, Carlo||24 Oct 1944||0820||Colombo||24 Oct 1944||1235||Colombo||8,5||Gyrocompass tests.|
|Imperiali, Carlo||25 Oct 1944||1712||Colombo||26 Oct 1944||0145||Colombo||76,5||Exercises.|
|Imperiali, Carlo||26 Oct 1944||0717||Colombo||26 Oct 1944||2037||Colombo||69,7||Exercises.|
|Imperiali, Carlo||27 Oct 1944||0715||Colombo||28 Oct 1944||0015||Colombo||112,5||Exercises.|
|Imperiali, Carlo||31 Oct 1944||0715||Colombo||31 Oct 1944||1835||Colombo||78,3||Exercises.|
|Imperiali, Carlo||2 Nov 1944||0707||Colombo||3 Nov 1944||0015||Colombo||159,6||Exercises.|
|Imperiali, Carlo||3 Nov 1944||0735||Colombo||3 Nov 1944||2350||Colombo||144,5||Exercises.|
|Imperiali, Carlo||7 Nov 1944||1125||Colombo||7 Nov 1944||1807||Colombo||52,7||Exercises.|
|Imperiali, Carlo||10 Nov 1944||0725||Colombo||10 Nov 1944||2140||Colombo||90,1||Exercises.|
|Imperiali, Carlo||13 Nov 1944||0805||Colombo||13 Nov 1944||2306||Colombo||89,6||Exercises.|
|Imperiali, Carlo||14 Nov 1944||0800||Colombo||14 Nov 1944||2215||Colombo||97||Exercises.|
|Imperiali, Carlo||15 Nov 1944||0735||Colombo||15 Nov 1944||1850||Colombo||73||Exercises.|
|Imperiali, Carlo||16 Nov 1944||0745||Colombo||16 Nov 1944||1845||Colombo||92,4||Exercises.|
|Imperiali, Carlo||17 Nov 1944||0742||Colombo||17 Nov 1944||1835||Colombo||119||Exercises.|
|Imperiali, Carlo||21 Nov 1944||0730||Colombo||21 Nov 1944||2325||Colombo||125,7||Exercises.|
|Imperiali, Carlo||23 Nov 1944||0735||Colombo||23 Nov 1944||1353||Colombo||33,5||Exercises.|
|Imperiali, Carlo||24 Nov 1944||0740||Colombo||24 Nov 1944||2220||Colombo||121,1||Exercises.|
|Imperiali, Carlo||27 Nov 1944||0735||Colombo||27 Nov 1944||1840||Colombo||77,5||Exercises.|
|Imperiali, Carlo||29 Nov 1944||0740||Colombo||29 Nov 1944||1825||Colombo||69||Exercises.|
|Imperiali, Carlo||30 Nov 1944||0740||Colombo||30 Nov 1944||1344||Colombo||40||Exercises.|
|Imperiali, Carlo||2 Dec 1944||0718||Colombo||3 Dec 1944||0230||Colombo||165,5||Exercises.|
|Imperiali, Carlo||5 Dec 1944||1120||Colombo||5 Dec 1944||1840||Colombo||57||Exercises.|
|Imperiali, Carlo||6 Dec 1944||0740||Colombo||6 Dec 1944||1900||Colombo||50,5||Exercises.|
|Imperiali, Carlo||8 Dec 1944||0730||Colombo||8 Dec 1944||2330||Colombo||76||Exercises.|
|Imperiali, Carlo||12 Dec 1944||0735||Colombo||12 Dec 1944||1410||Colombo||46,6||Exercises.|
|Imperiali, Carlo||15 Dec 1944||0750||Colombo||15 Dec 1944||1414||Colombo||38||Exercises.|
|Imperiali, Carlo||18 Dec 1944||0802||Colombo||18 Dec 1944||1515||Colombo||39||Exercises.|
|Imperiali, Carlo||19 Dec 1944||0730||Colombo||19 Dec 1944||1935||Colombo||99,2||Exercises.|
|Imperiali, Carlo||20 Dec 1944||0805||Colombo||20 Dec 1944||1840||Colombo||67,5||Exercises.|
|Imperiali, Carlo||21 Dec 1944||0735||Colombo||21 Dec 1944||1815||Colombo||64||Exercises.|
|Imperiali, Carlo||22 Dec 1944||0735||Colombo||22 Dec 1944||1935||Colombo||64||Exercises.|
|Imperiali, Carlo||28 Dec 1944||1720||Colombo||29 Dec 1944||0035||Colombo||57,6||Exercises.|
|Imperiali, Carlo||29 Dec 1944||0735||Colombo||29 Dec 1944||2325||Colombo||94,7||Exercises.|
|Imperiali, Carlo||30 Dec 1944||0730||Colombo||30 Dec 1944||1415||Colombo||41,5||Exercises.|
|Imperiali, Carlo||2 Jan 1945||0728||Colombo||2 Jan 1945||1842||Colombo||53,5||Exercises.|
|Imperiali, Carlo||3 Jan 1945||1450||Colombo||4 Jan 1945||0335||Colombo||96,7||Exercises.|
|Imperiali, Carlo||8 Jan 1945||1635||Colombo||9 Jan 1945||0210||Colombo||79,8||Exercises.|
|Imperiali, Carlo||9 Jan 1945||0635||Colombo||9 Jan 1945||2355||Colombo||125,4||Exercises.|
|Imperiali, Carlo||10 Jan 1945||0630||Colombo||10 Jan 1945||1525||Colombo||79,6||Exercises.|
|Imperiali, Carlo||12 Jan 1945||0640||Colombo||12 Jan 1945||1830||Colombo||69,5||Exercises.|
|Imperiali, Carlo||17 Jan 1945||0725||Colombo||18 Jan 1945||0030||Colombo||113,4||Exercises.|
|Imperiali, Carlo||18 Jan 1945||0735||Colombo||18 Jan 1945||2155||Colombo||78,3||Exercises.|
|Imperiali, Carlo||19 Jan 1945||0715||Colombo||20 Jan 1945||0300||Colombo||118,6||Exercises.|
|Imperiali, Carlo||22 Jan 1945||1115||Colombo||22 Jan 1945||2340||Colombo||92||Exercises.|
|Imperiali, Carlo||23 Jan 1945||0725||Colombo||23 Jan 1945||1845||Colombo||90,3||Exercises.|
|Imperiali, Carlo||24 Feb 1945||0715||Colombo||24 Feb 1945||1410||Colombo||38,8||Exercises.|
|Imperiali, Carlo||2 Mar 1945||0735||Colombo||2 Mar 1945||1415||Colombo||41,5||Exercises.|
|Imperiali, Carlo||3 Mar 1945||1205||Colombo||3 Mar 1945||2010||Colombo||56,5||Exercises.|
|Imperiali, Carlo||6 Mar 1945||1120||Colombo||6 Mar 1945||1800||Colombo||38,5||Exercises.|
|Imperiali, Carlo||8 Mar 1945||0730||Colombo||9 Mar 1945||0215||Colombo||82,2||Exercises.|
|Imperiali, Carlo||14 Mar 1945||0805||Colombo||14 Mar 1945||2025||Colombo||66,5||Exercises.|
|Imperiali, Carlo||15 Mar 1945||1125||Colombo||15 Mar 1945||1745||Colombo||38,4||Exercises.|
|Imperiali, Carlo||16 Mar 1945||1130||Colombo||16 Mar 1945||1825||Colombo||42||Exercises.|
|Imperiali, Carlo||21 Mar 1945||0730||Colombo||21 Mar 1945||1505||Colombo||46,2||Exercises.|
|Imperiali, Carlo||22 Mar 1945||1120||Colombo||22 Mar 1945||2355||Colombo||102,4||Exercises.|
|Imperiali, Carlo||23 Mar 1945||0720||Colombo||23 Mar 1945||2340||Colombo||111,9||Exercises.|
|Imperiali, Carlo||26 Mar 1945||0745||Colombo||26 Mar 1945||1500||Colombo||42,5||Exercises.|
|Imperiali, Carlo||29 Mar 1945||0740||Colombo||29 Mar 1945||2340||Colombo||98,9||Exercises.|
|Imperiali, Carlo||2 Apr 1945||0730||Colombo||2 Apr 1945||1525||Colombo||44||Exercises.|
|Imperiali, Carlo||3 Apr 1945||0730||Colombo||3 Apr 1945||1650||Colombo||57,9||Exercises.|
|Imperiali, Carlo||4 Apr 1945||1135||Colombo||4 Apr 1945||2210||Colombo||67,1||Exercises.|
|Imperiali, Carlo||5 Apr 1945||0725||Colombo||5 Apr 1945||1820||Colombo||55,4||Exercises.|
|Imperiali, Carlo||6 Apr 1945||0725||Colombo||6 Apr 1945||1820||Colombo||63,4||Exercises.|
|Imperiali, Carlo||17 Apr 1945||0735||Colombo||17 Apr 1945||1500||Colombo||44,4||Exercises.|
|Imperiali, Carlo||24 Apr 1945||1130||Colombo||24 Apr 1945||1942||Colombo||42,4||Exercises.|
|Imperiali, Carlo||26 Apr 1945||0730||Colombo||26 Apr 1945||1500||Colombo||47,3||Exercises.|
|Imperiali, Carlo||30 Apr 1945||0735||Colombo||30 Apr 1945||1430||Colombo||37||Exercises.|
|Imperiali, Carlo||1 May 1945||0730||Colombo||1 May 1945||1440||Colombo||45,6||Exercises.|
|Imperiali, Carlo||4 May 1945||0730||Colombo||4 May 1945||1430||Colombo||44,9||Exercises.|
|Imperiali, Carlo||7 May 1945||0743||Colombo||7 May 1945||1520||Colombo||56,1||Exercises.|
|Imperiali, Carlo||12 May 1945||1122||Colombo||12 May 1945||1855||Colombo||51,1||Exercises.|
|Imperiali, Carlo||30 May 1945||0740||Colombo||30 May 1945||1555||Colombo||57,9||Exercises.|
|Imperiali, Carlo||7 Jun 1945||0735||Colombo||7 Jun 1945||1452||Colombo||39||Exercises.|
|Imperiali, Carlo||8 Jun 1945||0740||Colombo||8 Jun 1945||1315||Colombo||35,2||Exercises.|
|Imperiali, Carlo||27 Jun 1945||0730||Colombo||27 Jun 1945||1730||Colombo||64,8||Exercises.|
|Imperiali, Carlo||3 Jul 1945||0730||Colombo||3 Jul 1945||1448||Colombo||44,8||Exercises.|
|Imperiali, Carlo||9 Jul 1945||0735||Colombo||9 Jul 1945||1500||Colombo||47,6||Exercises.|
|Imperiali, Carlo||16 Jul 1945||0730||Colombo||16 Jul 1945||1453||Colombo||47||Exercises.|
|Imperiali, Carlo||23 Jul 1945||0645||Colombo||23 Jul 1945||1552||Colombo||50,4||Exercises.|
|Imperiali, Carlo||23 Aug 1945||0908||Colombo||23 Aug 1945||1234||Colombo||9,7||Trials and gyrocompass tests.|
|Imperiali, Carlo||25 Aug 1945||1000||Colombo||5 Sep 1945||0720||Aden||2134,5||Passage Colombo-Aden.|
|Imperiali, Carlo||8 Sep 1945||1000||Aden||14 Sep 1945||2150||Suez||Passage Aden-Suez.|
|Imperiali, Carlo||14 Sep 1945||0440||Suez||14 Sep 1945||1620||Port Said||1423,1||Passage Suez-Port Said.|
|Imperiali, Carlo||17 Sep 1945||1230||Port Said||22 Sep 1945||0625||Taranto||988,2||Passage Port Said-Taranto.|
304 entries. 227 total patrol entries (22 marked as war patrols) and 98 events.