Acciaio (AC)
Acciaio

Type	Coastal / Sea going
Class	Platino 1 (24)
Laid down	21 Nov 1940	Odero-Terni-Orlando, Muggiano
Launched	22 Jun 1941
Commissioned	30 Oct 1941
End service
Stricken
Loss date	12 Jul 1943
Loss position
History	Probably sunk at 0020 hours on 12th July 1943 by Hudson 'Q' of 608 Squadron (Pilot Officer R.F. Burling) which attacked a submarine in 37°37'N, 08°03'E. Was previously reported as sunk by the submarine HMS Unruly on 13th July 1943 off Cape Vaticano in 38°35'N, 15°49'E but the submarine attacked was Benedetto Brin and she was missed.
Fate

Commands

Commander	Date from	Date to	Command notes
C.C. Giulio Chialamberto	1 Nov 1941	31 Dec 1941
T.V. Raul Galletti	4 Feb 1942	3 May 1942
T.V. Ottorino Beltrami	3 May 1942	22 Feb 1943
T.V. Vittorio Pescatore	25 Mar 1943	12 Jul 1943

Ships hit

No ships hit by this submarine.

Patrols and events

	Commander	Date	Time	Port	Arr. date	Arr. time	Arr. port	Miles	Description
		4 Sep 1941	0635	La Spezia	4 Sep 1941	2025	La Spezia		Exercises.
		10 Sep 1941	0625	La Spezia	10 Sep 1941	1935	La Spezia		Exercises.
		11 Sep 1941	0945	La Spezia	11 Sep 1941	1350	La Spezia		Exercises escorted by MAS 568.
		23 Sep 1941	0855	La Spezia	23 Sep 1941	1435	La Spezia		Exercises, escorted by the auxiliaries Crotone and Capodistria and MAS 505.
		25 Oct 1941	0915	La Spezia	25 Oct 1941	1645	La Spezia		Exercises, escorted by the auxiliariy Capodistria and MAS 570.
		27 Oct 1941	0900	La Spezia	27 Oct 1941	1710	La Spezia		Exercises, with the submarine Mocenigo escorted by MAS 570.
		30 Oct 1941	0900	La Spezia	30 Oct 1941	1200	La Spezia		Exercises, escorted by MAS 573.
	Chialamberto, Giulio	10 Nov 1941	1030	Muggiano	10 Nov 1941	1730	Muggiano	50	Trials.
	Chialamberto, Giulio	15 Nov 1941	1000	Muggiano	15 Nov 1941	1700	Muggiano	48	Trials with the submarine H 1 escorted by the destroyer Premuda and MAS 570.
	Chialamberto, Giulio	18 Nov 1941	0930	Muggiano	18 Nov 1941	1730	Muggiano	61	Trials with the submarines Mocenigo and Colonna. Escorted by the auxiliaries Crotone, Santantioco and Capodistria.
	Chialamberto, Giulio	9 Dec 1941	0900	Muggiano	9 Dec 1941	1400	Muggiano	7	Trials with the submarine Ambra. Escorted by the auxiliaries Taormina, Capodistria and Crotone.
	Chialamberto, Giulio	16 Dec 1941	0905	Muggiano	16 Dec 1941	1805	Muggiano	72	Trials in company with the submarines Platino and H 6 and the destroyer Premuda, the torpedo boat Carini, the tugs Capodistria, Crotone, Santatioco, Torre Annunziata and Favignana.
	Chialamberto, Giulio	29 Dec 1941	0840	Muggiano	29 Dec 1941	1715	Muggiano	49	Trials.
		22 Jan 1942	0849	Muggiano	22 Jan 1942	1630	Muggiano	36	Trials with the submarine Cobalto. Escorted by Mesco, Favignana and MAS 505.
		26 Jan 1942	0846	Muggiano	26 Jan 1942	1725	La Spezia	48	Trials and passage Muggiano-La Spezia.
	Galletti, Raul	4 Feb 1942	0855	La Spezia	4 Feb 1942	1736	La Spezia	60,5	Exercises with electric G7e torpedoes, escorted by the auxiliary Crotone.
	Galletti, Raul	6 Feb 1942	1030	La Spezia	6 Feb 1942	1730	La Spezia	2	Gyrocompass trials.
	Galletti, Raul	7 Feb 1942	0907	La Spezia	7 Feb 1942	1553	La Spezia	10,5	Silent running trials.
	Galletti, Raul	9 Feb 1942	0900	La Spezia	9 Feb 1942	1618	La Spezia	50,2	Diving trials to a depth of 80 metres and machine-gun firing exercises.
	Galletti, Raul	16 Feb 1942	0900	La Spezia	16 Feb 1942	1745	La Spezia	12,5	Exercises.
	Galletti, Raul	19 Feb 1942	0848	La Spezia	19 Feb 1942	1200	La Spezia	5,5	Exercises with the submarines Ambra and Rismondo, escorted by the auxiliaries Crotone and Porto Sdobba.
	Galletti, Raul	20 Feb 1942	0820	La Spezia	20 Feb 1942	1437	La Spezia	20,7	Gunfire exercises.
	Galletti, Raul	2 Mar 1942	0753	La Spezia	2 Mar 1942	1700	La Spezia	40,8	Exercises firing torpedoes by day. Escorted by the torpedo boat La Masa and the auxiliaries Crotone, Torre Annunziata and Santantioco.
	Galletti, Raul	11 Mar 1942	1835	La Spezia	12 Mar 1942	0135	La Spezia	35	Exercises firing torpedoes by night with the torpedo boat Carini.
	Galletti, Raul	12 Mar 1942	0740	La Spezia	12 Mar 1942	1137	La Spezia	35	Search for torpedoes.
	Galletti, Raul	14 Mar 1942	0945	La Spezia	16 Mar 1942	1755	Augusta	710,2	Passage La Spezia-Augusta. Uneventful.
1	Galletti, Raul	26 Mar 1942	1854	Augusta	12 Apr 1942	0815	Augusta	1751	Escorted out by the minesweeper Maria Capo Colonne for a patrol north of Libya, between 33°55'N and 34°05'N, and between 22°50'E and 23°50'E. On 8th April, ordered to Grids 7610 and 7636 (60 miles to the west of her initial area), but her patrol was cut short due to serious engine defects which required two months of repairs.
		27 Mar 1942	0845		At 0845 hours, an aircraft was seen and the submarine dived.
		27 Mar 1942	1320		At 1320 hours, a vessel was sighted at a distance of 7,000 metres. The submarine maneuvered to attack on the surface, but then sighted an aircraft at a distance of 4,000 metres. It proved to be Italian and the vessel was later identified as a hospital ship.
		30 Mar 1942	0420		At 0420 hours, a Catalina aircraft was sighted at a distance of 300 metres, flying at an altitude of 300-400 metres and steering 110° and the submarine crash-dived.
	Galletti, Raul	28 Apr 1942	1525	Augusta	28 Apr 1942	1835	Augusta	7	Trials.
	Galletti, Raul	30 Apr 1942		Augusta	30 Apr 1942		Augusta	7	The Prince of Piedmont, who in 1946, as Umberto II, would become the last King of Italy [his reign would last only a month], visited the submarine base at Augusta and boarded Acciaio to review her crew.
	Galletti, Raul	2 May 1942	0810	Augusta	2 May 1942	1130	Augusta	14,1	Exercises, escorted by the auxiliary Diversi.
	Beltrami, Ottorino	6 May 1942	0810	Augusta	6 May 1942	0949	Augusta	12	Exercises, escorted by the auxiliary Diversi.
	Beltrami, Ottorino	8 May 1942	0850	Augusta	8 May 1942	1228	Augusta	9	Exercises.
	Beltrami, Ottorino	13 May 1942	0837	Augusta	13 May 1942	1227	Augusta	14,3	Exercises, escorted by the auxiliary Diversi.
	Beltrami, Ottorino	27 May 1942	0813	Augusta	27 May 1942	1405	Augusta	34	Exercises, escorted by the torpedo boat Partenope.
	Beltrami, Ottorino	29 May 1942	0505	Augusta	29 May 1942	1450	Augusta	55,9	Exercises, escorted by the torpedo boats Partenope and Lince.
2	Beltrami, Ottorino	29 May 1942	1920	Augusta	30 May 1942	0148	Augusta	80,6	Sailed with the submarine Giada for a patrol west of Malta to intercept a cruiser squadron reported to have sailed from Gibraltar for an eastward destination. Escorted by the auxiliary Diversi but recalled by MARICOSOM at 2227 hours on the 29th. The light cruisers Eugenio di Savoia and Monteccucoli escorted by the destroyers Ascari and Oriani had also sailed. They were all recalled, including the submarine Alagi ,who had sailed from Trapani, when it was learned that the enemy squadron had reverted course. The enemy force was made of up of the light cruiser HMS Charybdis and the destroyers HMS Westcott and HMS Wrestler and they had sailed to search for the disabled submarine Argo.
	Beltrami, Ottorino	1 Jun 1942	0210	Augusta	2 Jun 1942	1512	Cagliari	421,3	Passage Augusta-Cagliari with the submarine Giada.
3	Beltrami, Ottorino	4 Jun 1942	0325	Cagliari	12 Jun 1942	0943	Cagliari	926,5	Patrolled north of Cape Caxine (Algeria) between 37°20'N and 37°40'N, and between 01°40'E and 02°20'E.
		10 Jun 1942	0735		At 0735 hours, a Bristol Bombay aircraft was sighted at a distance of 4,000 metres and the submarine dived.
4	Beltrami, Ottorino	12 Jun 1942	1533	Cagliari	17 Jun 1942	1650	Cagliari	626	Patrolled between 37°20' N and 37°40' N, and between 05°20' E and 05°40' E (Grid 9025, north of Cape Caxine (Algeria) with the submarines Bronzo, Emo, Giada, Uarsciek and Mocenigo. On 14th June, ordered to Grid 5801 (60 miles to the east).
		14 Jun 1942	2200		At 2200 hours, Acciaio received information that two damaged steamers would be passing near its position and altered course to 330° to intercept. Nothing was sighted at 0030 on the 15th and the submarine returned to her patrol zone.
5	Beltrami, Ottorino	19 Jun 1942	2345	Cagliari	21 Jun 1942	1615	Augusta	403,9	Sailed to operate between 34°20'N and 36°00'N, and between 16°00'E and 19°00'E, on a patrol line with the submarines Otaria, Emo and Uarsciek against an enemy convoy from the east (VIGOROUS), but at 1515 hours on the 20th, she was ordered back to Augusta. She was met by the torpedo boat Partenope and later by the submarines Alagi and Dessiè and they were being escorted to Augusta by the torpedo boat Abba.
	Beltrami, Ottorino	25 Jun 1942	2345	Augusta	27 Jun 1942	1456	Cagliari	429,2	Passage Augusta-Cagliari.
	Beltrami, Ottorino	10 Jul 1942	1410	Cagliari	11 Jul 1942	1020	La Maddalena	219,5	Passage Cagliari-La Maddalena with the submarine Platino.
6	Beltrami, Ottorino	22 Jul 1942	1400	La Maddalena	8 Aug 1942	1345	La Maddalena	1369,7	Patrolled south of the Balearic Islands, between 37°40'N and 38°00'N, and between 02°20'E and 02°40'E.
		30 Jul 1942	0838	37° 52'N, 2° 48'E	At 0838 hours, an aircraft was seen which appeared to be a Swordfish and the submarine dived.
		6 Aug 1942	0518	37° 49'N, 2° 06'E	At 0518 hours, a dark shape that could have been the conning tower of a submarine was sighted in poor visibility. The submarine tried to close but the target appeared to open fire at 0523 hours and contact was lost.
		7 Aug 1942	0652	38° 58'N, 3° 20'E	At 0652 hours, a steamer was sighted at 15 miles on a northerly course, 14 knots. It passed out of range.
	Beltrami, Ottorino	19 Aug 1942	1058	La Maddalena	19 Aug 1942	1442	La Maddalena	22	Trials.
	Beltrami, Ottorino	20 Aug 1942	1238	La Maddalena	20 Aug 1942	1615	La Maddalena	20	Trials.
	Beltrami, Ottorino	11 Sep 1942	0800	La Maddalena	11 Sep 1942	1300	La Maddalena	32	Exercises.
	Beltrami, Ottorino	13 Sep 1942	2355	La Maddalena	15 Sep 1942	1450	Augusta	459	Passage La Maddalena-Augusta with the submarines Bronzo and Platino.
	Beltrami, Ottorino	3 Oct 1942	0829	Augusta	3 Oct 1942	1255	Augusta	28	Exercises.
	Beltrami, Ottorino	14 Oct 1942	0728	Augusta	14 Oct 1942	1326	Augusta	57	Speed trials.
	Beltrami, Ottorino	5 Nov 1942	0725	Augusta	6 Nov 1942	2340	Cagliari	477	Passage Augusta-Cagliari.
		5 Nov 1942	1712 1710 (e)	38° 45'N, 15° 16'E	At 1712 hours, the lookout on the port side aft spotted a large bubble of air at a distance of 800 metres followed by three torpedo tracks. The helm was put hard to starboard and two torpedoes missed astern, the nearest at 20 metres, and the third passed under the keel near the deck gun, on a 160° angle. At 1713 hours, a fourth torpedo was sighted and the submarine kept turning to starboard and it passed on a parallel run 60 metres to port. The attack was made by the submarine HMS P 43 (Lt. A.C. Halliday, RN), later renamed HMS Unison. At 1658 hours, she had sighted the Italian submarine steering 267° at 12 knots. At 1710 hours, she fired a salvo of four torpedoes from a range of 1,400 yards. They missed and the target was observed to have turned northward.
7	Beltrami, Ottorino	7 Nov 1942	0320	Cagliari	13 Nov 1942	1344	Cagliari	903	Sailed for a patrol between 37°05' N and 37°15' N and between 07°30' E and 08°00' E and this was reached at 0215 hours on the 8th. During the same day, she received an order to proceed to Cape Bougaroni and patrol between 37°20' N and the coast. On 10th November, she was was ordered to patrol off Algiers between 37°00' N and the coast and between 02°40' E and 03°00' E.
		8 Nov 1942	0441	37° 10'N, 7° 45'E (0) Position is approximate.	At 0441 hours, a warship was observed to be firing her machine-guns at an aircraft. It was believed to be an Italian submarine.
		9 Nov 1942	2055	37° 05'N, 4° 16'E	At 2055 hours, a submarine of the DANDOLO class was sighted on an opposite course. This was possibly Axum returning from patrol.
		10 Nov 1942	0617 0530 (e)	36° 59'N, 2° 51'E (0) 174° - 37° N, 02° E - 22 miles (Lord Lotham) or 36°38N, 02°02E.	At 0604 hours, a large warship was sighted on the starboard beam at a distance of 5,000 metres. At 0610 hours, it was identified as a cruiser of the LEANDER class because of its single funnel and four gun turrets. The target appeared to proceed at 8 knots. At 0617 hours, a pair of torpedoes were fired from bow tubes at a range of 1,300 metres, followed a minute later by another pair. The third torpedo passed between turret 4 and the stern but no explosion was observed although one was heard. At 0626 hours, three depth charges were heard, followed by two more and it was believed they had been dropped by the cruiser. Acciaio was slightly damaged. More depth charges followed at 0628, 0714 and 0915 hours but the submarine succeeded in eluding her adversaries. The target may have been the armed trawler HMT Lord Lotham (FY 113, 464 tons) escorting convoy T.E.1. She reported being missed by a torpedo at that time although the position does not match (unless there is a typographical error).
		12 Nov 1942	2135	37° 49'N, 7° 12'E	At 2135 hours, a submarine was sighted.
	Beltrami, Ottorino	17 Nov 1942	1655	Cagliari	18 Nov 1942	2110	Naples	295	Passage Cagliari-Naples.
	Beltrami, Ottorino	4 Jan 1943	1111	Naples	4 Jan 1943	1806	Naples	28	Trials and exercises.
	Beltrami, Ottorino	6 Jan 1943	1354	Naples	6 Jan 1943	1644	Naples	2	Periscope tests.
	Beltrami, Ottorino	8 Jan 1943	0827	Naples	8 Jan 1943	1512	Naples	28	Exercises.
	Beltrami, Ottorino	9 Jan 1943	0912	Naples	9 Jan 1943	1530	Naples	24	Gunfire exercises.
	Beltrami, Ottorino	11 Jan 1943	0815	Naples	11 Jan 1943	1430	Naples	29	Trials and exercises.
	Beltrami, Ottorino	12 Jan 1943	0901	Naples	12 Jan 1943	0931	Naples	1	Changed moorings.
	Beltrami, Ottorino	12 Jan 1943	1455	Naples	12 Jan 1943	1725	Naples	1	Periscope test.
	Beltrami, Ottorino	13 Jan 1943	1135	Naples	14 Jan 1943	2035	La Spezia	340	Passage Naples-La Spezia.
	Beltrami, Ottorino	19 Jan 1943	0715	La Spezia	19 Jan 1943	1404	La Spezia	30	Torpedo firing exercises.
	Beltrami, Ottorino	20 Jan 1943	1252	La Spezia	20 Jan 1943	2050	La Spezia	55	Speed trials.
	Beltrami, Ottorino	23 Jan 1943	0812	La Spezia	23 Jan 1943	1518	La Spezia	2	Gyrocompass tests.
	Beltrami, Ottorino	25 Jan 1943	0230	La Spezia	26 Jan 1943	1110	Cagliari	365	Passage La Spezia-Cagliari.
8	Beltrami, Ottorino	27 Jan 1943	1730	Cagliari	17 Feb 1943	1225	Cagliari	1864	Patrolled between 37°20'N and the African coast and between 06°00'E and 06°20'E (between Cape Carbon and Cape Bougaroni).
		2 Feb 1943	0053	36° 58'N, 5° 13'E	At 0053 hours, a bomber strafed the submarine twice but missed.
		7 Feb 1943	2327 2330 (e)	37° 22'N, 6° 14'E	At 2324 hours, the Officer of the Watch spotted an object of the horizon. Shortly after it was identified as a destroyer of the JERVIS class steering 230° at 18 knots. At 2327 hours, a pair of torpedoes were fired from the stern tubes at a range of 2,000 metres. The submarine submerged upon firing and explosions were heard after 80 and 87 seconds. The torpedoes had actually missed. This was the minelayer HMS Abdiel and she avoided the two torpedoes, She had just laid a minefield off Bizerta during the night of 6-7th February.
	Puccini, Sergio	24 Feb 1943	1327	Cagliari	24 Feb 1943	1734	Cagliari	22	Exercises.
	Puccini, Sergio	27 Feb 1943	0915	Cagliari	28 Feb 1943	0905	La Maddalena	219	Passage Cagliari-La Maddalena for repairs through (1) Point B Cagliari (2) 39°20'N, 10°20'E (3) 41°00'N, 10°20'E (4) Point A; 40°55'N, 09°30'E.
	Puccini, Sergio	12 Mar 1943	1317	La Maddalena	12 Mar 1943	1853	La Maddalena	27	Exercises.
	Pescatore, Vittorio	30 Mar 1943	1015	La Maddalena	30 Mar 1943	1250	La Maddalena	28	Exercises and command transferred to T.V. Vittorio Pescatore.
	Pescatore, Vittorio	2 Apr 1943	1020	La Maddalena	2 Apr 1943	1104	La Maddalena	1	Changed moorings.
9	Pescatore, Vittorio	3 Apr 1943	1508	La Maddalena	17 Apr 1943	0640	La Maddalena	1523	Patrolled between 39°00'N and 39°40'N, and between 05°00'N and 05°40'E and off Cape de Fer, on a barrage line with Velella, Axum and Argo.
		4 Apr 1943	2010	39° 40'N, 5° 14'E	At 2010 hours, three aircraft were seen and the submarine dived.
		5 Apr 1943	2125	39° 10'N, 5° 34'E	At 2125 hours, an aircraft was seen at a distance of 1,500 metres and the submarine dived.
	Pescatore, Vittorio	17 Apr 1943	0854	La Maddalena	17 Apr 1943	0926	La Maddalena	1	Changed moorings.
	Pescatore, Vittorio	18 Apr 1943	1100	La Maddalena	19 Apr 1943	0830	Naples		Passage La Maddalena-Naples. The German submarine chaser UJ-2210 was alerted that she might encounter the submarine south of Ponza Island.
	Pescatore, Vittorio	19 Apr 1943	0944	Castellammare di Stabia	19 Apr 1943	1130	Castellammare di Stabia	246	Passage Naples-Castellammare di Stabia (mileage from 18 April 1943).
	Pescatore, Vittorio	30 Apr 1943	0805	Castellammare di Stabia	30 Apr 1943	1205	Castellammare di Stabia	12	Exercises.
	Pescatore, Vittorio	5 May 1943	0210	Castellammare di Stabia	7 May 1943	0834	Bonifacio	269	Passage Castellammare di Stabia-Bonifacio. Heard only Hydrophone noises.
	Pescatore, Vittorio	29 May 1943	1100	Bonifacio	29 May 1943	1135	Bonifacio	0	Changed moorings.
	Pescatore, Vittorio	9 Jun 1943	0530	Bonifacio	9 Jun 1943	0740	La Maddalena	20	Passage Bonifacio-La Maddalena.
10	Pescatore, Vittorio	12 Jun 1943	1715	La Maddalena	22 Jun 1943	0722	La Maddalena	1000	Patrolled between 38°40'N and 39°20'N and 05°40'E and 06°20'E. On 18th June, she was ordered to a new area between the parallel 37°40'N, and a line from Cape Bougaroni and Cape de Fer, and between meridians 06°34'E and 07°20'E.
		13 Jun 1943	0815	40° 30'N, 7° 05'E	At 0815 hours, an aircraft was seen at a distance of 15,000 metres and the submarine dived.
		15 Jun 1943	0122	38° 14'N, 6° 40'E	At 0122 hours, an aircraft was seen at a distance of 2,000 metres. At 0130 hours, the submarine dived.
		17 Jun 1943	2310	38° 17'N, 7° 06'E	At 2310 hours, an aircraft was seen and the submarine dived.
		19 Jun 1943	2208	37° 10'N, 7° 05'E	At 2208 hours, an aircraft was seen at a distance of 3,000 metres and the submarine dived.
11	Pescatore, Vittorio	10 Jul 1943	0215	La Maddalena	27 Jul 1943	Date???	Sunk with all hands		Sailed for patrol with the submarine Argento to patrol in zones 108 [between 37°20'N and 37°40'N, 08°20'E and 08°40'E] and 102 [between 37°40'N and 38°00'N, 08°20'E and 08°40'E] respectively through Point B (Punta Scorno) to point 40°40'N, 07°50'E then south to parallel 38°00'N and thence to patrol areas (also mentioned via (a) 41°08'N, 08°19'E (b) 40°40'N, 07°50'E then straight south until 38°00'N). At 1943 hours on 13th July, she was ordered to zone 171. At 1345 hours on 16th July, she was ordered via 39°00'N, 15°00'E (northwest of Stromboli) and point M3 (Cape Vaticano) to zone 80 off the east coast of Sicily (zone A and B) and to keep east of 15°50'E while charging batteries. [she was replacing Brin who had been assigned to the area but had abandoned her patrol because of defects] She disappeared without a trace (five officers and forty-one ratings missing). Postwar research attributed her loss to a torpedo from HMS Unruly but the submarine attacked was Brin. At 1315 hours on 23rd July, she was ordered to carry out an offensive reconnaissance from the southeast corner of her zone on course 149° to 36°16'N, 16°05'E hence course south to parallel 36°06'N and then to lower half of zone 83. She was to have returned to Naples on about 27th July 1943. On 24th July Marina Messina was alerted that the submarine would be returning through the Messina Strait via point S.1 (Capo Dell'Armi or near 37°57'N, 15°41'E) and M3 (Cape Vaticano) and would require escort (none were available) but the submarine did not show up. She may have been sunk on 12th July by Hudson 'Q' of 608 Squadron.
		12 Jul 1943	0020	39° 40'N, 5° 14'E	At 0020 hours, Hudson 'Q' of 608 Squadron, piloted by Pilot Officer R.F. Burling, detected a submarine by radar at a distance of 9 miles. It was proceeding on the surface, steering 110° at 6-8 knots. The U-boat submerged as the aircraft dived on the submarine firing eight rockets from 500 feet. The first five overshot by 20 to 40 feet, the remainder could not be observed, as the aircraft flew over the spot. A large oil patch was observed approximately 600 yards long and 50 yards wide. There is little doubt that the submarine attacked was Acciaio as her patrol area was just a few miles to the west - but was she sunk? We have no solid evidence that she was the victim of this attack. On the other hand, we have not seen evidence of any other attack that could have disposed of her. Giada was in the adjacent area (grid squares 107 and 114) and reported to be in 38°20' N, 08°20' E at 0515 hours, but did not report any attack.
		18 Jul 1943	0400 (e)		At 0400 hours, an aircraft reported a U-boat steering 180° and later altered to 090°. The submarine escaped. This was U-407.
		19 Jul 1943	2255-2315 (e)		At 2255 hours, Hudson (HZ.215) of 221 Squadron (Flight Lieutenant N. Barron), attacked an Italian submarine but the depth charges hung up. A German U-boat was seen in the same position at 2315 hours and was reported to surface forces. It was probably U-81 (OL Johann-Otto Krieg) in both cases. No evidence this was Acciaio.

94 entries. 80 total patrol entries (11 marked as war patrols) and 24 events.

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