HX 112 was a North Atlantic convoy of the HX series which ran during the battle of the Atlantic in the Second World War. It saw the loss of U-boats commanded by two of the Kriegsmarine's most celebrated commanders and propaganda heroes: under Otto Kretschmer (POW), and under Joachim Schepke (KIA).

Prelude HX 112 was an east-bound convoy of ships which sailed from Halifax on 1 March 1941, making for Liverpool with war materials. Many of the ships in HX 112 were tankers carrying fuel oil to Britain.

It was escorted by 5th Escort Group which consisted of two destroyers, and and two corvettes, and was led by Commander Donald Macintyre of HMS Walker. 5th Escort Group was reinforced on this occasion by an additional two destroyers, in view of the importance of the cargo, and met the convoy as it entered the Western Approaches.

On 15 March 1941 HX 112 was sighted by commanded by Fritz-Julius Lemp, who sent in a sighting report and commenced shadowing the convoy. He was joined throughout the day by four other boats; U-99 (Kretschmer) U-100 (Schepke) (Clausen) and (Kentrat).

Action

On the night of 15th/16th the attack started; U-110 was able to torpedo a tanker, which burst into flames, but survived to reach port; all other attacks that night were frustrated by the activities of the escorts.

Keeping up with the convoy on the surface during the day, the pack tried again as night fell on the 16th.

U-99 managed to penetrate the convoy from the north, on its port side, and sank three tankers and a freighter and damaged another tanker in under an hour. Remaining with the central column of the convoy she sank another freighter 15 minutes later before making her getaway.

Meanwhile, the escorts, searching for U-boats outside the convoy perimeter, found U-100 around 1.30am moving in on the surface. She dived, but Walker attacked with a depth charge pattern at close range. U-100 evaded further damage, and surfaced, to be sighted and rammed by Vanoc just after 3am; Schepke was killed when Vanoc smashed into his periscope structure and U-100 went down with most of her crew.

As this was happening, U-99 was making her escape; she nearly collided with a destroyer in the dark and dived. Picked up on ASDIC by Walker, she was depth-charged and severely damaged. Saving U-99 from being crushed as she sank deeper and deeper, Kretschmer brought her to the surface, where she was fired on by the encircling warships. U-99 was sunk, but Kretschmer and most of his crew were saved, to be taken prisoner.

There were no further attacks on HX.112 and the convoy arrived in Liverpool on 20 March.

Ships in the convoy Allied merchant ships A total of 41 merchant vessels joined the convoy, either in Halifax or later in the voyage.

NameFlagTonnage (GRT)NotesAhamo (1926)8,621Auris (1935)8,030Beduin (1936)8,136Torpedoed by , Wreck sunk by convoy escortBic Island (1917)4,000Black Condor (1921)5,358Bonde (1936)1,570ReturnedBritish Commodore (1923)6,865Arrived after collision off Liverpool 20 MarBritish Sincerity (1939)8,538Joined Ex BHX 112Chaucer (1929)5,792Cistula (1939)8,097Joined Ex BHX 112, Straggled 10 Mar 41City Of Oxford (1926)2,759Dalcross (1930)4,557Diloma (1939)8,146Joined Ex BHX 112Elona (1936)6,192Joined Ex BHX 112Erodona (1937)6,207Torpedoed by Everleigh (1930)5,222Ferm (1933)6,593Torpedoed by 16 Mar. Wreck sank 21 MarFranche-Comté (1936)9,314Damaged by 16 Mar; Storing HulkGloucester City (1919)3,071Straggled 10 Mar 41Ixion (1912)10,263Joined Ex BHX 112, Straggled 10 MarJ B White (1919)7,375Sunk by Katendrecht (1925)5,099Joined Ex BHX 112Korshamn (1920)6,673Sunk by 16 MarLancaster Castle (1937)5,172Lima (1918)3,762Margarita Chandris (1920)5,401Straggled 10 MarMosli (1935)8,291Mount Kassion (1918)7,914Norefjord (1920)3,082Ocana (1938)6,256Joined Ex BHX 112Oilreliance (1929)5,666Joined Ex BHX 112Reynolds (1927)5,113Robert F Hand (1933)12,197Joined Ex BHX 112, Straggled 10 MarSan Cipriano (1937)7,966Joined Ex BHX 112Silvercedar (1924)4,354Later torpedoed and lost in Convoy SC 48 on 15 Oct 1941Stad Haarlem (1929)4,518Tortuguero (1921)5,285Traveller (1922)3,963Joined Ex BHX 112. Straggled 10 MarTrekieve (1919)5,244Venetia (1927)5,728Sunk by 16 MarWestland (1931)5,888Straggled 10 Mar, Returned New York CityWinamac (1926)8,621Joined Ex BHX 112. Straggled 10 Mar

Convoy escorts A series of armed military ships escorted the convoy at various times during its journey.

NameFlagTypeJoinedLeft10 Mar 194110 Mar 194115 Mar 194118 Mar 194110 Mar 194110 Mar 1941 heavy cruiser05 Mar 194114 Mar 1941Armed merchant cruiser10 Mar 194114 Mar 1941 Admiralty S-class destroyer15 Mar 194119 Mar 1941 HMS ScimitarAdmiralty S-class destroyer15 Mar 194119 Mar 1941 HMS SyringaMinesweeper15 Mar 194118 Mar 1941V-class destroyer15 Mar 194120 Mar 1941W-class destroyer15 Mar 194115 Mar 1941Modified W-class destroyer16 Mar 194120 Mar 1941W-class destroyer15 Mar 194119 Mar 1941

Conclusion HX.112 had lost six ships totalling 50,000 tons. However, the loss of two of the Kriegsmarine's successful U-boat commanders and propaganda heroes was a severe blow to the Kriegsmarine offensive. The defence of HX.112, coupled with the successful defence of Convoy OB 293 and the loss of U-boat commander Günther Prien along with his sub the previous week, marked a minor turning point in the Atlantic campaign.

References

Bibliography Stephen Roskill : The War at Sea 1939–1945 Vol I (1954). ISBN (none) Dan van der Vat : The Atlantic Campaign (1988). Arnold Hague : The Allied Convoy System 1939–1945 (2000). ISBN (Canada) 1 55125 033 0 . ISBN (UK) 1 86176 147 3