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U-73

Type

VIIB

 
Ordered2 Jun, 1938
Laid down 5 Nov, 1939 Bremer Vulkan, Bremen-Vegesack (werk 1)
Launched27 Jul, 1940
Commissioned30 Sep, 1940Kptlt. Helmut Rosenbaum (Knights Cross)
Commanders
30 Sep, 1940 - 10 Sep, 1942  Kptlt. Helmut Rosenbaum (Knights Cross)
1 Oct, 1942 - 16 Dec, 1943   Horst Deckert
Career15 patrols 30 Sep, 1940 - 31 Jan, 1941  7. Flottille (training)
1 Feb, 1941 - 1 Jan, 1942  7. Flottille (front boat)
1 Jan, 1942 - 16 Dec, 1943  29. Flottille (front boat)
Successes8 ships sunk for a total of 43.945 GRT
4 warships sunk for a total of 22.947 tons (lost aboard transport ships)
3 ships damaged for a total of 22.928 GRT
Fate

Sunk 16 Dec, 1943 in the Mediterranean near Oran, in position 36.07N, 00.50W, by depth charges and gunfire from the US destroyers USS Woolsey and USS Trippe. 16 dead and 34 survivors.

See the 15 ships hit by U-73 - View the 15 war patrols

Attacks on this boat

22 Mar, 1942
In the Mediterranean U-73 was attacked by a Bristol-Beaufort bomber with 4 bombs, suffering heavy damage.

5 Dec, 1942
The boat was attacked in the Mediterranean by an aircraft, and was damaged so badly that she had to return to base.

27 Dec, 1942
At 07.15 hours, the boat was attacked by a British Wellington aircraft LA971 (179 Sqdn RAF/T, pilot F/L A.H. Comfort). The aircraft (misidentified as Beaufort) had picked up a radar contact and made a Leigh Light attack, but the boat had been warned by Metox and opened fire with the AA guns, immediately scoring hits on the port engine. Four depth charges missed and the Wellington was forced to head for the coast, making it to Tafaraoui after jettison all loose equipment. (Sources: Franks/Zimmerman)

27 Dec, 1942
Aircraft attack, aircraft shot down:British Hudson AM689 (500 Sqdn RAF/M, pilot P/O J.R. Pugh)

At 08.17 hours, the boat was attacked by the Hudson. AA fire hit the aircraft during the initial strafing run and its four depth charges fell in 80 to 250 metres distance, causing only light damages. Hit in the cockpit area and in the starboard engine, the Hudson headed for the coast about 50 miles away, but had to ditch only 3 minutes after the attack. The crew of 4 made it into a dinghy and were rescued in the afternoon by a Walrus flying boat (700 Sqdn FAA, pilot SubLt Neil Fuller) after being spotted and escorted by Hudsons (500 and 608 Sqdn RAF).

(Sources: Franks/Zimmerman)

27 Jun, 1943
The boat was depth charged in the Mediterranean by escorts. Due to the heavy damages the boat had to return to base.

30 Oct, 1943
The attack on 30 Oct, 1943 in the Mediterranean southeast of Toulon, France, in position 43.04N, 05.57E, by a torpedo from the British submarine HMS Ultimatum was formerly credited with sinking the U-431.

This attack was actually against U-73 inflicting no damage.

(Sources: 1987-11-01, FDS/NHB)

13 Dec, 1943
During an attack against convoy GUS 24 in the Mediterranean U-73 was rammed by a destroyer, resulting in the loss of her quadruple machine gun.

7 recorded attacks on this boat.

General notes on this boat

On 11 August 1942 U-73 sank the British aircraft carrier HMS Eagle in position 38.05N, 03.02E.

Radiogram sent by U-73 on 11 Aug, 1942:

Geleit - 15 Zerstörer und Geleitboote, 2 Kreuzer, 9 bis 10 Frachter, 1 Flugzeugträger, 1 Schlachtschiff wahrscheinlich. Fächerschuß auf Flugzeugträger. Vier Treffer aus 500 Meter Entfernung. Starke Sinkgeräusche.
- Alles klar! -
Rosenbaum

Convoy - 15 destroyers and escort ships, 2 cruisers, 9 to 10 freighters, one aircraft carrier, probably one battleship. Fan shot against aircraft carrier. 4 hits from 500 meters distance. Strongly audible sinking noises.
- All clear! -
Rosenbaum

Men lost from U-boats

Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-73 did not suffer any casualties (we know of) until the time of her loss.



German U-Boat Losses During World War II

Niestle, Axel

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Books dealing with this subject include:

German U-Boat Losses During World War II, Niestle, Axel, 1998
Red Duster, White Ensign, Cameron, Ian, 1974
U-Boat Operations of the Second World War - Vol 1, Wynn, Kenneth, 1998
U-Boat Operations of the Second World War - Vol 2, Wynn, Kenneth, 1998


There was another U-73 in World War One
That boat was launched from its shipyard on 16 Jun, 1915 and commissioned into the Imperial Navy on 9 Oct, 1915. The Naval war in WWI was brought to an end with the Armistice signed on 11 Nov, 1918. Read about the U 73 during WWI.