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WorldWar2.ro Forum > Romanian Royal Navy > Soviet submarines successes in Black Sea 1941 - 1944


Posted by: Kirill June 26, 2003 08:06 pm
Sobiet submarines successes in Black Sea 1941 - 1944:

Date/Country/Name/Tonnage/Sub/sunk (S), damaged (D)/Area

15.08.1941 Romania “Peles” 5708 “SC-211” S to the north of Emine Cape

29.09.1941 Italy “Superga” 6154 “SC-211” S Emine Cape

26.10.1941 Germany Fähre “SF-25” 130 “M-35” S Konstanza-Sulina

27.10.1941 Germany “Lola” 3000 “M-35” D Sulina

3.11.1941 Turkey “Kaynakdere” 85 “SC-214” S Black Sea

5.11.1941 Italy “Torcello” 3336 “SC-214” S Karaburun Cape

18.11.1941 Turkey “Yenice” 428 “SC-215” S Black Sea

1.01.1942 Turkey “Koraltepe” 350 “SC-214” S Igneada

23.02.1942 Turkey “Cankaya” 164 “SC-213” S to the south of Karaburun Cape.

24.02.1942 Bulgaria “Struma” 257 “SC-213” S Bosfor

18.05.1942 Turkey "Duatepe" 128 "SC-205" S nothern of Karaburun Cape

18.05.1942 Turkey unknown sailing ship ? "SC-205" S northern of Karaburun Cape

23.05.1942 Turkey "Safak" 683 "SC-205" S northern of Karaburun Cape

29.05.1942 Romania "Sulina" 3493 "A-3" S Odessa Gulf

29.05.1942 Turkey “Hudarvendigar” 100 “SC-214” S Inada

31.05.1942 Turkey “Mahbubdihan” 85 “SC-214” S Stefanos Cape

2.06.1942 Turkey unknown sailing ship 100 “SC-214” S Stefanos Cape

11.06.1942 Romania "Ardeal" 5695 "A-5" D Odessa Gulf

17.08.1942 “Durenstein” 300 “M-31” S Odessa Gulf

23.08.1942 "Ankara" 100 "M-36" S to the east of Burnas Cape

1.10.1942 Germany "Salzburg" 1742 "M-118" S Black Sea

6.10.1942 Romania “Oltul” 100 “M-31” S Ochakovskoe girlo
[According to another source – 6.10.1942 – romanian tug “Mina Daniel” (293 ts) sank by M-31 in this attack]

7.10.1942 ? "Arka" ? "L-24" В northern of Bosfor

10.10.1942 Romania “Carpati” 4336 “SC-216” S Olinka Cape

21.10.1942 Romania “Le Progress” 511 “M-35” S to the east of Sulina

14.11.1942 Germany "Ossag" 2790 "L-23" D northern of Bosfor

08.12.1942 Turkey "Kogiboglu" 100 "D-5" S Black Sea

20.04.1943 Romania “Suceava” 6876 “S-33” S Tarkhankut Cape

23.04.1943 Germany MFP F-127 220 "M-112" S Meganom Cape

21.06.1943 Germany MFP F-139 220 "M-117" S Yalta

18.07.1943 Romania "Dunarea-1" 505 "M-111" S Feodosia

6.08.1943 Germany “Firuz” 7327 “SC-216” D Bosfor

10.08.1943 Germany "Boy Federsen" 6,689 "D-4" S Tarkhankut Cape

20.08.1943 Bulgaria "Varna" 2441 "D-4" S Tarkhankut Cape

30.08.1943 Germany “Thiesbe” 1782 “SC-215” S Bosfor

22.09.1943 Germany UJ-101 830 “S-33” D Tarkhankut Cape - Evpatoria

10.10.1943 Germany MFP F-474 220 "A-2" south shore of Crimea

25.10.1943 Germany "Tyra-5" 1278 "M-112" Tarkhankut Cape - Ak-Mechet

2.11.1943 Germany “SNR-1293” 1270 “M-35” S Ak-Mechet

12.11.1943 Germany "Theoderich" 3814 "M-111" Sevastopol - Konstanza

15.11.1943 Germany MFP F-592 220 S Tarkhankut Cape

23.11.1943 Germany "Santa Fe" 4627 "D-4" S southern of Evpatoria

25.11.1943 Germany Wolga-Don 956 "L-6" S Tarkhankut Cape

2.12.1943 Germany MFP F-566 220 "SC-209" S Tarkhankut Cape - Evpatoria

9.12.1943 Germany MFP F-580 220 “S-31” S Tarkhankut Cape – Tendra Peninsula

11.05.1944 Germany "Friedrich" 7327 "L-4" В to south-east of Olinka Cape

12.05.1944 Germany MFP F-130 220 “S-33” S to south-west of Hersones Cape

20.07.1944 Turkey "Semsi Bahri" 26 "SC-209" S Bosfor

26.07.1944 Turkey unknown sailing ship "SC-209" S Black Sea.

5.08.1944 Turkey “Mefkure” 52 “SC-215” S 42.03 N 29.08 E

24.08.1944 Bulgaria “Vita” 240 “SC-215” S Black Sea

[According to another source – 24.08.1944 – turkish sailing ship “Selahettin” (96 BRT) sank by “SC-215” in area Konstanza - Bosfor]

Following ships probably were lost on mines of soviet subs:

15.09.1941 - bulgarian "Shipka" (2304 t) sank on mine, laid by soviet sub "L-4".

10.10.1941 - romanian minelayer "Regele Carol I"(2369 t) sank on mine, laid by soviet sub "L-4".

Any comments/corrections/additions will very welcome.

Posted by: daveh June 28, 2003 08:57 am
Could you please give your sources for this information , especially if they are in english, to save me repeating your fine efforts.

Thanks

Posted by: Kirill June 29, 2003 03:35 pm
Hello daveh!

I used following Russian-language sources:

A.V. Platonov "Sovetskie boevye korabli 1941-1945" ("Soviet warships 1941-1945"), part 3 "Podvodnye lodki" ("Submarines") St.Petersburg 1996

M.Morozov "Podvodnye lodki tipa SC" ("Submarines type SC") 2002

M.Morozov, S. Balakin "Podvodnye lodki tipa S" ("Submarines type SC") 2001

If you have Jurgen Rohwer's "ASA" it'll be great if you'll compare the list with Rohwer's book.

Posted by: Sergey July 09, 2003 02:06 pm
Hello Kirill,

In many cases you can find the answers in the book M. Morozov " Submarines VMF USSR in War 1941-1945 " p.2 the Black Sea fleet ".
The padding information on separate vessels or ships (Mina Daniel, Ankara, SNR-1293, Theoderich, Santa Fe and others) - on an other forum, known for you, take advantage there of search.

Posted by: daveh July 09, 2003 08:11 pm
Hi Kirill

i have Jurgen Rohwer's "ASA" on order from my local library , just heard they have it in so I will be checking it out from tomorrow smile.gif

Posted by: Victor July 10, 2003 07:38 am
I have some comments:

I have found no mention of the damaging of Ardealul in June1942 at Odessa. Could you give me more details?

The tug Oltul was lost on 6 October 1942, not 16. It sank at 43 deg 36 min N and 28 deg 58 min E. The water was 10 m deep. Ten men were lost.

The oil tanker Arca (Arka in your source) was Italian. But did not find any mention of anything happening to it on 7 October 1942.On that date it entered the Black Sea, but it did not suffer any damage. On 16 October it left Constanta fully loaded and it was escorted by NMS Stihi and two German MFPs to varna and from there by Bulgarian ships to the Bosphorus. It was sunk on 26 October in the Aegean by the HMS Taku,9 miles south of Kios isle.

The tanker Le Progrès was a German ship (ex-French), not a Romanian one.

I have found no mention of the Dunarea-1. It can be the former tug Amsel, which was only leased to the Romanian Royal Navy, In February 1943 it was returned to the Germans, together with its sister ship Forsch.

The cargo-boat Boy Federsen was attacked at 19:24on 10 August 1943 by 3 torpedo-bombers (probably DB-3Fs). The first one launched two torpedoes which passed just behind the ship. But as it was avoiding the first two, it was struck by the torpedo launched by the second aircraft, which was then shot down by NMS Ghiculescu.The third aircraft launched one torpedo, which scored another direct hit. At 19:30 another two aircraft dropped 6to 8 bombs, but did not manage to hit the stricken cargo. At that moment the NMS Regina Maria avoided a torpedo, but saw no aircraft. This was probably the torpedo launched by the D-4. The explosion heard by the crew could have very well been the heavy AAA firing (102 mm and 76 mm guns). The Boy Federsen was tugged, but on 12 August, at 23:15,it sank at 44 deg 58 min N, 33 deg 5 min E. The crew was saved. According to testimonies of officers onboard the escort ships, there was no explosion. It just went down. Also, the investigations done afterwards did not mention any more torpedo attacks.

Posted by: Sergey July 10, 2003 09:06 am
Hello Victor,

You wrote: I have found no mention of the damaging of Ardealul in June1942 at Odessa. Could you give me more details?

In the ninth combate raid (07-21.06.42) the sub А-5 (Kukuy) acted in Odessa region (position № 31), where has arrived in the evening 10.06.42. With day she was on the approaches to Odessa, and for night headed out to the east for charge accumulator battery. 11.06.42 sub, maneuvering in region the Odessa banks, has detected a convoy - 2 vessels and 5 patrol boats. At 15.12 from underwater position, distance 3,5 cbt sub has released 1 torpedo in a main vessel (6000 tons). From close explosion a boat has strongly thrown, then she has hit a ground, could not leave in region of no-bottoms and lie on a ground in a place of attack on depth of 18 m. The enemy has not detected exact sub’s location, on a boat only there was out of operation gyro-compass. At 16.06 in a periscope was revealed the damaged vessel. After a leaving of enemy ships the boat has corrected damages and left region of attack.
By enemy’s data in a point 46.33,8N/ 30.45,3E (on other data - 46.32,05N/ 30.56,05E) was heavily damaged Romanian vessel Ardeal, 5695 BRT, transporting air motors and other air property. The vessel was possible managed on a bank, where she was sunk. 05-08.08.42 vessels was raised and subsequently repaired. At 15.15-15.37 sub was counterattacked by German FR 2, FR 4, FR 7, FR 8 and FR 10, which have dropped on her 18 DC.


You wrote: The tug Oltul was lost on 6 October 1942, not 16. It sank at 43 deg 36 min N and 28 deg 58 min E. The water was 10 m deep. Ten men were lost.

In the tenth combat raid (02-09.10.42) sub M-31 (Rastochil’) acted in region of cape Burnas (position № 42). In the afternoon 06.10.42 boats has detected a tug, but the commander has refused attack because of small value. At the night sub has detected a convoy - a tug with barge, MFP and two patrol boats. At 23.42 in a point 45.47,4N/ 30.19,0E from surface position, distance 3 cbt the boat has released on the barge two torpedoes. Two explosions, then one more stronger explosion were visually watched. The sub has come off in surface position and next morning began returning in basis.
By enemy’s data Romanian tug Oltul (former Mina Daniel, 93 BRT, 1916) was sunk.


You wrote: The oil tanker Arca (Arka in your source) was Italian. But did not find any mention of anything happening to it on 7 October 1942.On that date it entered the Black Sea, but it did not suffer any damage. On 16 October it left Constanta fully loaded and it was escorted by NMS Stihi and two German MFPs to varna and from there by Bulgarian ships to the Bosphorus. It was sunk on 26 October in the Aegean by the HMS Taku,9 miles south of Kios isle.

In second combat raid (01-21.10.42) sub L-24 (Apostolov) at first acted in region of Yalta. In 11.09-11.15 04.10.42 boats laid a barrage 1/25 of 20 mines by a line between points 44.28,5N/ 34.10,0E and 44.28N/ 34.10,8E with a mine space 55 m and deepening of 2,4 m. After that the boat was directed to a Bosphorus channel. At 04.05 06.10.42 sub has arrived at the position № 46. 07.10.42 in a point 41.29,8N/ 28.47,5E sub has detected a convoy - tanker (5.000 т), schooner and 2 patrol boats. At 14.23 from underwater position, distance 10 cbt boat has released three torpedoes on the tanker. Through 1 min. 22 sek. was heard explosion. Not having kept on depth, the boat has emerged also shown the enemy a periscope shear, and then has plunged on 45-m depth. The ships have dropped on her 7 DC, but sub has received only insignificant damages and has remained on a position. Up to the end of stay on a position the boat managed to detect of a little bit Turkish schooners, in attacks did not go out.
By enemy's data to unsuccessful attack has exposed Italian tanker Arka 2238 BRT, the torpedo's trace was watched. Counter-attack have effected German R 165 and R 166, dropped 9 DC.


You wrote: I have found no mention of the Dunarea-1. It can be the former tug Amsel, which was only leased to the Romanian Royal Navy, In February 1943 it was returned to the Germans, together with its sister ship Forsch.

In eighteenth combat raid (07-22.07.43) sub M-111 (Iosseliani) acted in region of Feodosiya (position № 86-spare), where has arrived at 03.00 10.07.43. 17.07.43 sub has detected a convoy - a vessel (1000 tons) and 4 MFP. At 06.43 in a point 44.58,2N/ 35.44,5E from underwater position, distance 8 cbt. the boat has released one torpedo on a vessel, but explosion has not followed. Other torpedo because of unserviceability of a firing valve has not left a torpedo launcher. To prosecution sub was not exposed.
By enemy's data the not blown up torpedo hits the German motor vessel Adelheid, 444 BRT, following from Feodosiya in Taman’.
In the morning 18.07.43 sub has detected another convoy - vessel (1000 tons), 3 MFP and 1 patrol boat, coming out of Balaklava harbour. At 10.06 in a point 44.59,8N/ 35.32,0E from underwater position, distance 8 cbt. the boat has released on a vessel one torpedo. Through 76 sek. was heard the explosion, and a bit later in periscope was watched the vessel down by the bow. The boat left from prosecution to a minefield. At returning in basis, at 22.53 M-111 was attacked without results by German sub U 18, but M-111 has not noticed the attack.
By enemy's data was sunk the Romanian barge Dunarea I, 1505 tons. In counter-attack on sub was dropped 8 DC.


You wrote: The cargo-boat Boy Federsen was attacked at 19:24on 10 August 1943 by 3 torpedo-bombers (probably DB-3Fs). The first one launched two torpedoes which passed just behind the ship. But as it was avoiding the first two, it was struck by the torpedo launched by the second aircraft, which was then shot down by NMS Ghiculescu.The third aircraft launched one torpedo, which scored another direct hit. At 19:30 another two aircraft dropped 6to 8 bombs, but did not manage to hit the stricken cargo. At that moment the NMS Regina Maria avoided a torpedo, but saw no aircraft. This was probably the torpedo launched by the D-4. The explosion heard by the crew could have very well been the heavy AAA firing (102 mm and 76 mm guns). The Boy Federsen was tugged, but on 12 August, at 23:15,it sank at 44 deg 58 min N, 33 deg 5 min E. The crew was saved. According to testimonies of officers onboard the escort ships, there was no explosion. It just went down. Also, the investigations done afterwards did not mention any more torpedo attacks.

Can you specify in what side of a vessel was hit the last torpedo ?

Posted by: Sergey July 11, 2003 09:39 am
Hello Kirill,

The most spread mistakes, especially in old Soviet sources:

“27.10.1941 Germany “Lola” 3000 “M-35” D Sulina”
Actually, the vessel was staggered with not exploited torpedo, another has passed under her and has exploited at a mole.

“17.08.1942 “Durenstein” 300 “M-31” S Odessa Gulf”
This day, at 14.00 sub M-31 unsuccessfully attacked Romanian D Danubius and T Oituz. In counter-attack the ships of an escort have dropped 8 DC.
German Durenstein, 107 BRT was lost in storm at Odessa 06.01.44.

“23.04.1943 Germany MFP F-127 220 "M-112" S Meganom Cape”
At 10.05 in a point 44.50,8N/ 35.12,4E sub M-112 unsuccessfully attacked German MFP F 301 and F 406 from composition of a convoy Kleiner Baer 41. In counter-attack enemy’s ships have dropped 9 DC.
German MFP F 127 in October 1943 was transmitted to Romania, 27.08.44 captured by Soviet troops in Sulina and included in ChF composition.

“21.06.1943 Germany MFP F-139 220 "M-117" S Yalta”
At 15.42 in a point 44.47,9N/ 33.11,1E sub M-117, probably, unsuccessfully attacked German MFP from composition of a convoy Bansin 12.
German MFP F 139 was captured by American troops in headwaters of Danube.

“22.09.1943 Germany UJ-101 830 “S-33” D Tarkhankut Cape – Evpatoria”
The attack of sub S-33 at 04.19 in a point 44.38N/ 31.39,7E is not fixed by the enemy. Probably, the boat attacked Romanian T Prodromos and minelayer Murgesku, escorted by three German Raumboots.

“25.10.1943 Germany "Tyra-5" 1278 "M-112" Tarkhankut Cape - Ak-Mechet”
Correct name of barge - Tyna V. (ex. Greek Tyna Varnalis), deadweight - 1278 tons.

“23.11.1943 Germany "Santa Fe" 4627 "D-4" S southern of Evpatoria”
At 05.47 27.11.43 in a point 45.05,9N/ 33.16,6E German D Santa Fe was mined on German drifting mine or on Soviet barrage 1/35, laid by sub L-4 18.07.43 between points 45.07,5N/ 33.18,4E и 45.05,3N/ 33.15,8E and stayed after sweeping. At 06.36 vessel was exploited and sunk after 7 minutes в точке 45.06,14N/ 33.16,3E.
In last radio, evening 30.11.43 Trofimov has reported only on intensive movement of enemy’s transport aircrafts in region of cape Tarkhankut and has not mentioned attack of transport, that would be strange, if it nevertheless took place.


Besides in your list there are no data:

- 22.07.43 at 05.58-06.02 SS L-4 in a point 41.26N/ 28.44E has sunk Turkish schooner Hudayi Bahri, 29 BRT;

- 23.07.43 at 17.05-17.08 SS L-4 in a point 41.25N/ 28.43E has sunk Turkish schooner Gurpinar, about 100 BRT;

- 28.08.43 at 19.40 SS M-111 in a point 44.47N/ 33.26E torpedoed and has put out of action up to the end of war the German motor vessel Heinburg, 378 BRT.

and also are not taken into account all losses from mine weapon of submarines.

Posted by: Kirill July 11, 2003 09:49 am
Hello Sergey!

Thanks a lot for your help. Not a few mistakes and missed ships in my list.
I will order M. Morozov's book, it seems it's a very interesting and good source.

Best regards
Kirill

Posted by: Wawrzyniec July 11, 2003 10:58 am
Hello Kirill,
Miroslav Morozov's book is really great. I have two parts, about Baltic and Balck Sea. I know from Miroslav, that third part will be connected with Arctic and fourth - with TOF's submarines activity and Winter War. This is really valuable source - the best publication about Soviet submarines I have ever seen. I would like to highly recommend these books for all of Forum members able to read in Russian language.
If you have problems with these books I could try to help you, but suppose, that in Russia these books are much more cheaper, than in Poland.
Greetings,
Wawrzyniec

Posted by: Victor July 11, 2003 01:46 pm
QUOTE
Can you specify in what side of a vessel was hit the last torpedo ?


The first torpedo hit Boy Federsen in the port side and the second one hit it in the starboard side. The third plane could not launch during the first pass and had to return to do it. This is why the torpedo hit in the opposite side.

QUOTE
At 05.47 27.11.43 in a point 45.05,9N/ 33.16,6E German D Santa Fe was mined on German drifting mine or on Soviet barrage 1/35, laid by sub L-4 18.07.43 between points 45.07,5N/ 33.18,4E и 45.05,3N/ 33.15,8E and stayed after sweeping. At 06.36 vessel was exploited and sunk after 7 minutes


Actually I have a slightly different version (sunk after 52 minutes, not 7): the convoy made up of Lola and the Santa Fe, escortedby NMS Marasesti, NMS Murgescu and 3 R-boote was heading to Crimea. In the morning of 23 November 1943, at 0646,2 miles south of Evpatoria there was a big explosion in the forward part of the Santa Fe. Two minutes later there was another explosion in about the same place. The ship caught fire and leaned over on the port side. A third explosion happened a little later and blew off the main mast and the command post. The fourth and last explosion took place at 0738 and caused its sinking. The crew was saved by the R-boote. First everybody thought that they had hit a mine or a magnetic mine or even sabotage at Odessa. Some said that they saw torpedoes.

Posted by: Sergey July 14, 2003 08:52 am
And torpedo noticed by Regina Maria when she saw no aircraft (probably by a sub), what sides of Boy Feddersen was it launched?

Posted by: Victor July 19, 2003 10:48 am
QUOTE
And torpedo noticed by Regina Maria when she saw no aircraft (probably by a sub), what sides of Boy Feddersen was it launched?


The NMS Regina Maria was in the starboard side of the convoy. The torpedo came from its starboard side.

Posted by: Sergey July 22, 2003 01:07 pm
Are there data about exact time of torpedoes hits and about time of torpedo’s launch which watched by R. Maria? The last torpedo went on a surface or normally?

Posted by: Victor July 23, 2003 08:11 am
The first torpedo hit Boy Federsen at 1922 and the second one at 1924. The Regina Maria spotted the torpedo at 1930.

Posted by: Sergey July 23, 2003 09:29 am
And D-4 launched three torpedoes in a point 45.03N/ 32.48,9E from starboard of transport by dispalacement 6-7000 tons at 20:19 (Moscow time), distance 12 cbt. The explosions were heard through 125, 145 and 165 seconds.

Posted by: Victor July 23, 2003 10:41 am
2019 Moscow time would be 1919 Bucharest time. The 1930 I found for the torpedo spotted by Regina Maria was indirectly determined by me. It says that at 1930 another wave of aircraft attacked (this time bombers). In the paragraph immediately underneath this says that right away the destroyer spotted the torpedo I mentioned. It thought it came from an airplane, because it saw AA fire in that direction.

The explosions could have been the the large AAA firing

Posted by: Bernard Miclescu July 29, 2003 09:34 pm
Hello Victor,

What about the ship "Sturma" with jewish refugee that lived from Constanta in 12 dec 1941? In the book "Romania in al doilea razboi mondial", D Giurescu is speeking about it, and that it was sunk by the soviet submarine SC-213. All those information are correct?

Sincerelly yours,
Bernard

Posted by: Bernard Miclescu July 29, 2003 09:37 pm
Nevermind Victor, it's only now that i saw it in Kirill's list. So it was a Bulgarian ship...

Many thanks.
Bernard

Posted by: Petre May 27, 2009 08:24 pm
"Boy Federsen" = Anhalt (6,580t) Built 1914 for North German Lloyd, 1914 laid up at Telang Betok, 1919 ceded to Britain as war reparation, 1921 sold to Spain, 1924 reverted to Anhalt, 1932 sold to USSR renamed Harkov. Oct.14, 1941 scuttled at Nicolaev, salvaged by Germans. 1942 renamed Boy Feddersen. 1943 torpedoed by Sov. torpedo aircraft and Aug.11 sunk by Sov. submarine D.4. near Sevastapol.
I found on net this coincidence :
On Apr.20, 1943 the cargoboat "Suceava"(6876 or 5695 брт) - the largest cargo vessel of the Axis in the Black Sea, under escort of the destroyer "Regina Maria", minesweepers R-163, R-164, and MR-7, from Constantsa to Sulina. At 02.20 the convoy has been attacked with 3 torpedoes from the Sov. submarine S-33 and as result of hit of a torpedo "Suceava" within several minutes has sunk. 28 persons, including the chief of German sea transportations on Black sea, the Kapitan zur See Boy Feddersen, were lost.
According to archival data, destruction point 45°01'N 31°10'E.
Also : Kapitan zur See Boy Feddersen. born 1892, last rank promotion 1 Jul 1942. Seetransportchef Schwarzes Meer - Sep 1942 - Apr 1943. Death/missing date - 20 Apr 1943

Posted by: Petre July 13, 2010 04:28 am
http://www.soviet-empire.com/ussr/viewtopic.php?f=112&p=762493

Posted by: Petre August 07, 2016 06:21 am
Admiral, Black Sea - War Diary (american-british translation, edited)

10 October 42
18.48 - Steamer "Carpaţi" torpedoed and sunk 45°0.5 N, 29°47 E.
15 antiaircraft personel, 3 marines, 29 romanian crew were rescued, 3 romanians are missing. A search of the scene of the accident will continue by day. Secret material was saved. ... the ship must have been torpedoed in a surface attack while still escorted by the minesweepers.
Commander of Convoys and Escorts, Black Sea (Geleitchef Schwarzes Meer) has issued the necessary orders for continuing antisubmarine operations in the sea area where the "Carpaţi" went down. The chase will not be broken off unless special orders. Planes are also operating throughout the day. The submarine was located several times and attacked with depth charges.
During the rescue of the crew of the "Carpaţi", a submarine made a surface attack. The boat, surfaced at 150 meter range, was fired with 2 cm. guns and after submerging was attacked with depth charges.

20 April 1943
01.23 While on passage from Sevastopol to Constanţa, escorted by destroyer "Regina Maria", 2 minesweepers and minesweeper MR 7, the steamer "Suceava" was hit by 2 torpedoes in hold No.2 and the engine room and sank. Submarine and torpedo track not sighted; the attack took place in bright moonlight in calm weather, so presumably was an underwater attack. Minesweeper R 164 lying stopped and listening with revolving directional hydrophones heard submarine noises.
"Suceava" sank 3-4 minutes after she was torpedoed. 71 men were rescued by the minesweepers and MR 7. 26 are missing, including Kpt.z.S. Feddersen, Chief Sea Transportation Office, Black Sea (Seetransportchef Schwarzes Meer) and the captain of "Suceava".
3 seaplanes carried out a search during the forenoon without result. A patch of oil and floating pieces of gear were sighted in air grid square 1513. Why the naval forces lid not keep up their search for survivors until dawn remains to be seen.
The torpedoing of a steamer of more than 7,000 brt. entailing the loss of about a quarter of our Black Sea freighter tonnage is a new indication of the extraordinary submarine danger in the Black Sea. Agents' messages and prisoners' statements agree that in spite of several losses, the enemy still has between 30 and 40 subs. at his disposal.
The anti-submarine forces at my disposal are in no way adequate to meet the submarine menace. For a long time I have been sending in repeated requests for submarine chasers equipped with all kinds of gear, but there has been no response so far. "Schiff 19" and "Xanten" are the only vessels equipped with search gear which could be used as submarine chasers ...
In view of the total number of escort forces available, the escort which Geleitchef Schwarzes Meer provided for "Succeava" which was returning empty from Sevastopol to Constantsa - 1 destroyer ahead, 1 minesweeper to port and starboard and minesweeper MR 7 astern - must be regarded as adequate.
The moonlight and the calm weather favored the enemy attack.
(...)
Following the loss of "Succeava" … I have given orders to Geleitchef Schwarzes Meer to instruct all commanders of convoys that depending on the visibility they should carry out frequent alterations of course at irregular intervals. A change of course every two hours as has been the practice so far, is not in my opinion sufficient in clear moonlight.

11 August 1943
The steamer "Boy Feddersen" (ex "Harkov") which was torpedoed from the air yesterday was reported to be in 44°57 N, 32°56 E at 08.30. By this time the captain of "Schiff 19" had assumed command of the situation.
The steamer was drifting with a list of 25°. The crew had been rescued by 2 minesweepers. "Dumitrescu" had failed in all her efforts at towing, as the lines had constantly broken. 3 minesweepers, 2 MFPs and "Dumitrescu" were also with the damaged steamer. The romanian destroyers which had fled were ordered by the German Naval Command (Deutsches Marinekommando Konstanza) to return. Their behavior will be investigated further.
3 harbor tugs, the tug "Baikal" and 2 more minesweepers put out from Sevastopol to join the other vessels there. Around 15.00 the damaged ship was taken in tow by the 4 tugs at speed of approximately 3 knots. At 20.00 their position was in 44°51 N, 33°04.5' E. Escorting the towing formation were 5 minesweepers, 2 MFPs, 2 ships of 23.U-Bootjagdflottille, "Schiff 19", 3 harbor defense boats, "Murgescu" and "Dumitrescu". 3 more naval tugs with minesweeper MR 7 and 2 D-boats arrived during the night to add support. In the course of the day, enemy reconnaissance planes repeatedly flew over Eupatoria Bay but no further attacks were made.

12 august

… the following report was made to Group South (Marinegruppenkommando Sud): "On 10 August the "Boy Feddersen" - "Varna" convoy was proceeding in line abreast with "Boy Feddersen" as guide on the starboard side. Escorting forces: "Murgescu" ahead, "Regina Maria" on the starboard bow, "Mărăşti" on the port bow, minesweeper R 153 on the starboard beam, minesweeper R 196 on the starboard quarter, minesweeper R 204 on the port quarter, gunboat "Dumitrescu" astern, course 258°, speed 11 knots. Weather and light: wind northwest, force 2-3, slightly clouded, bright moon bearing 200°, last remaining daylight in the west, moderate visibility, becoming quickly darker in the east with haze and bad visibility.
At 19.22 in 45° 01' N, 32° 49.5' E, 2 russian torpedo-planes type DB-3, flew in from the southeast and attacked from the port quarter. 2 torpedoes were launched at "Boy Feddersen": one of them struck her amidships, causing a high column of smoke and water.
Astern of "Boy Feddersen", the planes turned off to the northeast. While they were turning, the ship's guns were trained on them and 1 plane was shot down. At the same time one DB-3 attacked from the starboard quarter from the northeast. One torpedo was launched on "Boy Feddersen"; it struck her amidships on the starboard side and a high column of smoke and water and heavy steam clouds limediately developed. The plane flew off to the northwest.
3 German signalmen of "Maria" claim to have sighted a periscope on the starboard quarter and 2 torpedo tracks from this direction, hence the torpedo hit on the starboard side. The periscope disappeared off the bow of "Boy Feddersen". These statements seem doubtful.
(…)
At 19.34 another attack was made on "Boy Feddersen" by 2 Russian bombers which flew in from the east at an altitude of 600 - 800 meters. They dropped several bombs which landed close astern of the ship, but did not hit her. The planes flew off in a westerly direction and our anti-aircraft guns failed to hit them.
Defensive maneuvers of the steamers: "Boy Feddersen's" attempt to turn off failed because the attacking planes were not observed until too late. On observing them, "Varna" made off to the southwest on zig-zag courses.
At 19.45 "Murgescu" continued passage to Constantza with "Mărăşti" and "Varna". The other escort vessels protected and attempted to salvage "Boy Feddersen" which was still afloat. At 19.53 another unsuccessful attack was made from the starboard quarter by a single DB-3. Our one fighter and close escort had left the convoy 10 minutes before the attack. Air protection had not been specially requested as it was a moonlight night. The convoy had been first detected at 15.00 by a russian reconnaissance plane. On being informed of this fact by radio, the commander of the convoy had ordered increased readiness of the anti-aircraft guns.

Comments by Admiral, Black Sea:
The aerial torpedo attack was made at the most favorable moment from a dark horizon. Our fighter escort had just left as darkness fell. The success of the attack was largely due to the fact that the approaching planes were not observed and also to the skill of the execution in attacking simultaneously from port and starboard.
The formation adopted by the convoy and the procedure of escort forces for the defense of "Varna" and "Boy Feddersen" after the attack were correct.
Commander Naval Air (?) reported that the Me-110 fighter escort had remained with the convoy until 19.20. The plane had then to fly back to reach its base before the end of twilight. It had arrived at approximately 19.35. Commander Naval Air has no night fighters at his disposal. 1.Fliegerkorps has approx. 6 night fighters, which are employed over the Kuban bridgehead and Kerch Strait. After discussion with Commander Naval Air, it was planned to request night fighters from Luftflotte 4. for special operations, such as the escorting of important convoys on bright nights.

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