- Convoy HG 76
Convoy HG 76 Part of World War II Date 19-23 Dec 1941 Location eastern Atlantic Result British victory Belligerents Germany United Kingdom Commanders and leaders Admiral Karl Dönitz Commodore:
Escort Cdr: Capt. Frederic John Walker
Casualties and losses 4 U-boats destroyed 2 Ships sunk
2 Escorts sunk
It was notable in seeing the destruction of 4 U-Boats for the loss of 4 ships and is regarded as the first major victory for the Allies in the Battle of the Atlantic.
HG 76 comprised 32 ships homeward bound from Gibraltar, many in ballast, or carrying trade goods.
There was a strong escort, consisting of 36th Escort Group, usually 2 sloops (corvettes (Convulvulus, Gardenia, Marigold, Penstemon, Rhodedendron, Samphire and Vetch) under the command of FJ Walker; this force was augmented by the new escort carrier Audacity, and her 3 escorting destroyers, HMS Blanckney, HMS Stanley (I73) and HMS Exmoor II plus 5 other warships, the sloops HMS Fowey and HMS Black Swan, And the corvettes Carnation and La Malouine: A total of 17 warships.
HG 76 sailed from Gibraltar on 15 December 1941, and was reported almost immediately by German agents across the bay in neutral Spain; these were able to report the convoy’s composition, escort strength and departure time.
HG 76 was also sighted later that day by U-74, on route to the Mediterranean, but was lost in poor visibility, while BdU was confused by an agents report that the convoy had returned to port.
The Sea Robbers were arrayed in a patrol line south of Cape St Vincent, but HG 76 was able to pass through he line without detection.
Meanwhile one of the boats, U-127 was detected on a routine ASW sweep by a group of 4 destroyers from Gibraltar; but after a brief but devastating attack U-127 was destroyed, the credit going to the Australian destroyer HMAS Nestor.
During the night of the 16th/17th the wolf pack closed in until by morning on the 17th 4 boats were in contact.
However vigorous patrolling by the escorts, and aircraft from Audacity, led to U-131 being detected; she was attacked by Stork, with Penstemon and the 3 destroyers in concert. U-131 was driven to the surface and sunk, though not before shooting down one of the Martlets.
On the night of 17/18th the U-boats attacked again; aggressive counter-measures prevented any hits, while at dawn on the 18th U-434 was sighted by the destroyers; she was attacked and rammed by Blankney, which was damaged in the process.
During the rest of the day several of the escorts had to leave; the sloops Black Swan , Fowey, with the corvettes Carnation and La Malouine returned to Gibraltar to re-fuel, while Blankney departed for repairs, escorted by Exmoor II.
On the night of 18/19 Stanley sighted U-574 astern, shadowing the convoy; she attacked, but was herself torpedoed and sunk. Stork and Samphire followed up the attack and destroyed U-574, picking up survivors from both. Also during the night U-108 attacked successfully, torpedoing Ruckinge, which was abandoned, to be sunk later by Samphire.
On the 19th the convoy was attacked by a force of Condors; they caused no damage, but 2 were shot down, and another damaged, by Martlets from Audacity. Also that day the Sea Robbers were joined by 3 more boats from Bordeaux, U-71, U-567 (captained by U-boat ace KL Endrass), and U-751. Were dispatched to join the sea robbers; they were to arrive on the 21st. Over the next 3 days The 3 remaining boats from Seeräuber, U-67, U-107 and U-108 continued to shadow, attacking without result.
On 21st the 3 boats from Bordeaux, and the U-boats again prepared to attack.
Walker attempted to draw off the attack by having Deptford make a demonstration some way off from the convoy; This was unsuccessful, as some of the merchant ships were confused by the display, and also fired star-shells, revealing their position. U-567 was able to sink Annavore, while Bigalk, in U-751 sighted Audacity, zig-zagging behind the convoy without her escort. He fired, and Audacity was sunk, hit by 3 torpedoes. Marigold, Vetch and Samphire counter-attacked, but without result.
Later that night Deptford spotted a U-boat on the surface; she attacked, and dropped depth-charges, with no apparent result; however, post-war analysis revealed that she had sunk U-567. Following this Deptford collided with Stork, damaging them both.
During 22 Dec U-71 and U-751 remained in contact, to be joined by U-125 (en route to America), while HG 76 was reinforced by the destroyers Vanquisher and Witch.
On 23 Dececember Donitz, shaken by his losses, and the lack of success, called off the attack; U-67, U-107, U-108 and U-751 returned to bases in France.
Despite the loss of Audacity and the 3 other ships, the safe arrival of 30 ships and the destruction of 3 U-boats ( U-127 was not included, and U-567 not confirmed until after the war) was judged to be an outstanding victory. It also confirmed Walker as the Royal Navy’ s foremost expert in anti submarine warfare.
By contrast Adm Donitz and the U-boat Arm was shaken by their losses, particularly Endrass, who was the leading U-boat ace at that time.
Allied ships lost
Date Name Nationality Casualties Tonnage Sunk by… 19 Dec Ruckinge. British 2 2869 GRT U-108 21 Dec Annavore British 34 3324GRT U-567
Allied warships lost
Date Name Nationality Casualties Type Sunk by… 19 Dec HMS Stanley British Destroyer U-574 21 Dec HMS Audacity British Escort Carrier U-571
Axis submarines destroyed
Date Number Type Captain Casualties Sunk by… 17 Dec U-131 Type IX KK Bauran none HMS Stork 18 Dec U-434 Type VIIC KL Heyda 2 HMS Blankney,
19 Dec U-574 Type VIIC OL Gengelbach 27 HMS Stork 21 Dec U-567 Type VIIC KL Endrass 47 HMS Deptford
- Clay Blair : Hitler’s U-Boat War Vol I (The Hunters 1939-1942) (1996) ISBN 0-304-35260-8
- Dan van der Vat : The Atlantic Campaign (1988) ISBN 0-340-37751-8
- Paul Kemp : U-Boats Destroyed ( 1997) ISBN 1-85409-515-3
- Rohwer, J. and Hummelchen, G. Chronology of the War at Sea 1939-1945 (1992) ISBN 1-55750-105-X
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