Convoy SC 118

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Convoy SC 118
Part of Battle of the Atlantic

USS Schenck at sea
Date4–7 February 1943
Location
Belligerents
 Germany
Commanders and leaders
  • H. C. C. Forsyth
  • Proudfoot
Karl Dönitz
Strength
20 submarines
Casualties and losses
  • 445 killed
  • 8 merchant ships sunk (51,592 GRT)
  • 101 killed
  • 45 POW
  • 3 submarines sunk

Convoy SC 118 was the 118th of the numbered series of World War II slow convoys of merchant ships from Sydney, Cape Breton Island, to Liverpool.[1] The ships departed New York City on 24 January 1943 and were met by the Mid-Ocean Escort Force Group B-2 consisting of the Treasury-class cutter Bibb, the Town-class destroyer Beverley, the V-class destroyers Vanessa and Vimy and four Flower-class corvettes, Abelia, Campanula, Lobelia and Mignonette, with the convoy rescue ship Toward.[2][3]

Background

As western Atlantic coastal convoys brought an end to the "second happy time" off the US coast, Admiral Karl Dönitz, the Befehlshaber der U-Boote (BdU, commander in chief of U-boats) shifted focus to the mid-Atlantic to avoid aircraft patrols. Although convoy routing was less predictable in the mid-ocean, Dönitz anticipated that the increased numbers of U-boats being produced would be able to find convoys with the advantage of intelligence gained through B-Dienst decryption of the British Naval Cypher Number 3.[4] Only 20 per cent of the 180 trans-Atlantic convoys sailing from the end of July 1942 until the end of April 1943 lost ships to U-boat attack.[5]

Prelude

On 2 February U-456 sank three ships from Convoy HX 224. A survivor of one of the sunken ships was picked up by U-632 and told his rescuers a slower convoy was following.[6]

Battle

4 February

A painting of a large grey ship at sea, black smoke coming from its funnel
A painting of one the ships in the convoy, SS Radport

A careless merchant seaman of Convoy SC 118 fired a pyrotechnic snowflake projector aboard the Norwegian cargo ship Vannik in the pre-dawn darkness of 4 February.[6] U-187 observed the snowflake display, reported the convoy and was promptly sunk by Beverley and Vimy after Bibb and Toward triangulated the submarine's location from the sighting report, using high-frequency radio direction-finding (HF/DF or Huff-Duff).[7] The destroyers rescued 44 of the submarine's crew.[8] The Polish merchant ship Zagloba was torpedoed on the unprotected side of the convoy by U-262 and U-413 torpedoed the straggling US merchantman West Portal.[7]

5 February

The convoy escort was reinforced by the US Coast Guard Treasury class cutter Ingham and the Wickes-class destroyers USS Babbitt and USS Schenck from Iceland.[7] The reinforced escort damaged U-262 and U-267.[9]

7−9 February

A convoy seen from Liberator X, 120 Squadron, based at Aldergrove

In the pre-dawn hours, U-402 (Kapitänleutnant Siegfried von Forstner) torpedoed the British freighter Afrika, the Norwegian tanker Daghild, the Greek merchant ship Kalliopi, the US tanker Robert E. Hopkins, the cargo liner Henry R. Mallory, and the convoy rescue ship Toward.[10]

Henry R. Mallory was capable of 14 knots (26 km/h; 16 mph) but had been straggling well astern of the convoy for several days and was not zig-zagging, despite its exposed position. Mallory would normally have been assigned to one of the faster HX convoys but there had been no Iceland section of the preceding Convoy HX 224. No commands came from the bridge after Mallory was torpedoed, no flares were sent up, no radio distress message was sent out and no orders were given to abandon ship.[11] There were 272 casualties from Mallory's crew of 77, 34 Navy gunners, and the 136 American soldiers, 172 American sailors and 72 US Marines she was transporting to Iceland.[12]

U-614 sank the British straggler Harmala and Lobelia sank U-609.[10] The B-17 J of 220 Squadron sank U-614 on 7 February.[7] U-402 sank the British merchantman Newton Ash that night. On 9 February, Forstner was awarded the Knight's Cross of the Iron Cross for ships sunk by U-402 from this convoy and from Convoy SC 107 on the previous patrol. Convoy SC 118 reached Liverpool without further loss on 12 February.[2]

Ships in convoy

Merchant ships[13]
NameYearFlagGRTNotes
Acme 1916  United States 6,878 Petrol, oil
Adamas 1918  Greece 4,144 Steel, lumber; 8 Feb, collided Samuel Huntington, sank, 0†
African Prince 1939  Merchant Navy 8,031 Bauxite, ammunition, Convoy Commodore H. C. C. Forsyth
Afrika 1920  Merchant Navy 8,597 Steel, general cargo, 7 Feb, sunk U-402, 23†
Ann Skakel 1920  United States 4,949 General cargo, detached to Iceland 9 Feb
Arizpa 1920  United States 5,437 Stores
Athelprince 1926  Merchant Navy 8,782 Diesel, naphtha; convoy vice-commodore
Baron Haig 1926  Merchant Navy 3,391 Sugar
Baron Ramsey 1929  Merchant Navy 3,650 Iron ore
Bestik 1920  Norway 2,684 Steel, lumber
Blairdevon 1925  Merchant Navy 3,282 Steel, lumber
Celtic Star 1918  Merchant Navy 5,575 Reefer ship
Cetus 1920  Norway 2,614 Sugar
City of Khios 1925  Merchant Navy 5,574 Sugar
Daghild 1927  Norway 9,272 Diesel, sunk, U-402, U-614, U-608
Dallington Court 1929  Merchant Navy 6,889 Wheat
Danae II 1936  Merchant Navy 2,660 Bauxite
Danby 1937  Merchant Navy 4,281 Linseed, grain
Daylight 1931  United States 9,180 General cargo, escort oiler; detached Iceland 9 Feb
Deido 1928  Merchant Navy 3,894 Petrol
Dettifoss 1930  Iceland 1,564 General cargo, 9 Feb, detached, Iceland
Dordrecht 1928  Netherlands 4,402 Palm oil, returned to Halifax
Empire Gareth 1942  Merchant Navy 2,847 Bauxite
Empire Liberty 1941  Merchant Navy 7,157 General cargo
Glarona 1928  Norway 9,912 Fuel oil, diesel
Gogra 1919  Merchant Navy 5,190 General cargo
Gold Shell 1931  Merchant Navy 8,208 Petrol
Grey County 1918  Norway 5,194 General cargo, 3†
Gulf of Mexico 1917  United States 7,807 Oil, petrol
H M Flagler 1918  Panama 8,208 Furnace fuel oil, escort oiler
Harmala 1935  Merchant Navy 5,730 Iron ore, straggled, sunk U-614 7 Feb, 53†
Helder 1920  Netherlands 3,629 General cargo
USS Henry R. Mallory 1916  United States 6,063 383 passengers & general cargo, 7 Feb, sunk U-402, 272†
Ioannis Frangos 1912  Greece 3,442 Grain
Julius Thomsen 1927  Denmark 1,151 Detached, Greenland
Kalliopi 1910  Greece 4,965 Steel, lumber, 7 Feb, sunk, U-402, 4†
King Stephen 1928  Merchant Navy 5,274 Grain
Kiruna 1921  Sweden 5,484 General cargo
Lagarfoss 1904  Iceland 1,211 General cargo, 9 Feb, detached, Iceland
Makedonia 1942  Greece 7,044 Flour
Mana 1920  Honduras 3,283 General cargo, 9 Feb, detached, Iceland
Maud 1930  Norway 3,189 Sugar
New York City 1917  Merchant Navy 2,710 General cargo
Newton Ash 1925  Merchant Navy 4,625 Grain, mail & military stores, 7 Feb, sunk, U-402, 32†
Norbryn 1922  Norway 5,087 Tea, rubber
Permian 1931  Panama 8,890
Petter II 1922  Norway 7,417 Gas oil
Polyktor 1914  Greece 4,077 Grain, sunk by U-266
Rådmansü 1914  Sweden 4,280 Sulphur
Radport 1925  Merchant Navy 5,355 General cargo
Redgate 1929  Merchant Navy 4,323 General cargo
Robert E. Hopkins 1921  United States 6,625 Furnace fuel oil, escort oiler, 7 Feb, sunk U-402
Samuel Huntington 1942  United States 7,181 General cargo, Liberty ship
Sheaf Holme 1929  Merchant Navy 4,814 Potash & general cargo
Sommerstad 1926  Norway 5,923 Lubricating oil
Stad Arnhem 1920  Netherlands 3,819 Phosphates
Tilemachos 1911  Greece 3,658 Grain
Toward 1923  Merchant Navy 1,571 Rescue ship, 7 Feb, sunk by U-402, 58†
Vacuum 1920  United States 7,020 Petrol
Vannik 1940  Norway 1,333 General cargo, detached to Iceland 9 Feb
West Portal 1920  United States 5,376 Straggled, 4 Feb, sunk by U-413
William Penn 1921  United States 8,447 Petrol
Yemassee 1922  Panama 2,001 General cargo, 9 Feb, detached, Iceland
Zagloba 1938  Poland 2,864 Ammunition, general cargo, 4 Feb, sunk, U-262

Allied order of battle

Convoy escorts

Mid-Ocean Escort Force[3]
NameFlagTypeNotes
Escort Group B2
HMS Beverley  Royal Navy Town-class destroyer
USCGC Bibb United States Treasury-class cutter
HMS Vanessa  Royal Navy V-class destroyer
HMS Vimy  Royal Navy V-class destroyer
HMS Abelia  Royal Navy Flower-class corvette
HMS Campanula  Royal Navy Flower-class corvette
FFL Lobélia  Free French Naval Forces Flower-class corvette
HMS Mignonette  Royal Navy Flower-class corvette
Reinforcements
USCGC Ingham United States Treasury-class cutter
USS Babbitt  United States Navy Wickes-class destroyer
USS Schenck  United States Navy Wickes-class destroyer

Coastal Command

Coastal Command squadrons[14]
SqnFlagGroupTypeNotes
120 Squadron  Royal Air Force 15 Group B-24 Liberator Very Long Range ASW
206 Squadron  Royal Air Force 15 Group B-17 Fortress Very Long Range ASW
220 Squadron  Royal Air Force 15 Group B-17 Fortress Very Long Range ASW

German order of battle

Wolfpack Pfeil (Arrow)

Gruppe Pfeil II[15]
Name Flag Class Notes
U-89  Kriegsmarine Type VIIC submarine
U-135  Kriegsmarine Type VIIC submarine 8 February, damaged, Liberator K, 120 Squadron
U-187  Kriegsmarine Type IXC/40 submarine 4 February, sunk, Vimy and Beverley
U-262  Kriegsmarine Type VIIC submarine
U-266  Kriegsmarine Type VIIC submarine
U-267  Kriegsmarine Type VIIC submarine 5 February, damaged, Vimy
U-402  Kriegsmarine Type VIIC submarine
U-413  Kriegsmarine Type VIIC submarine
U-438  Kriegsmarine Type VIIC submarine
U-454  Kriegsmarine Type VIIC submarine
U-456  Kriegsmarine Type VIIC submarine
U-465  Kriegsmarine Type VIIC submarine
U-594  Kriegsmarine Type VIIC submarine
U-608  Kriegsmarine Type VIIC submarine
U-609  Kriegsmarine Type VIIC submarine 6 February, sunk, Lobélia
U-613  Kriegsmarine Type VIIC submarine
U-614  Kriegsmarine Type VIIC submarine 9 February, damaged, Fortress L, 206 Squadron
U-624  Kriegsmarine Type VIIC submarine 7 February, sunk, Fortress J, 220 Squadron
U-704  Kriegsmarine Type VIIC submarine
U-752  Kriegsmarine Type VIIC submarine

See also

Notes

  1. Hague 2000, p. 133.
  2. Hague 2000, p. 135.
  3. Rohwer & Hümmelchen 2005, p. 228.
  4. Tarrant 1989, p. 108.
  5. Hague 2000, p. 132, 137–138, 161–162, 164, 181.
  6. Waters 1966, p. 96.
  7. Rohwer & Hümmelchen 1992, p. 191.
  8. Waters 1966, p. 97.
  9. Waters 1966, p. 98.
  10. Hague 2000, p. 137.
  11. Waters 1966, pp. 102–103.
  12. Morison 1957, p. 336.
  13. Jordan 2006, pp. 44, 79, 88, 96, 124, 128, 132, 141, 145, 147, 166, 175, 176, 177, 186, 192, 196, 204, 205, 213, 215, 272, 276, 290, 304, 308, 314, 316, 322, 329, 330, 332, 340, 367, 387, 390, 396, 404, 411, 417, 418, 422, 426, 433, 462, 465, 483, 491, 497, 498, 505, 513, 525, 527, 559, 582, 585, 587, 590, 592, 596, 598.
  14. Rohwer & Hümmelchen 2005, pp. 228–229.
  15. Woodman 2004, p. 719.

References

  • Hague, Arnold (2000). The Allied Convoy System 1939–1945, Its Organisation, Defence and Operation. London: Chatham. ISBN 1-86176-147-3.
  • Jordan, Roger W. (2006) [1999]. The World's Merchant Fleets 1939: The Particulars and Wartime Fates of 6,000 Ships (2nd ed.). London: Chatham/Lionel Leventhal. ISBN 978-1-86176-293-1.
  • Morison, Samuel Eliot (1957). The Battle of the Atlantic September 1939 – May 1943. History of United States Naval Operations in World War II. Vol. I. Boston, MS: Little, Brown and Company. OCLC 917591348.
  • Rohwer, Jürgen; Hümmelchen, Gerhard (1992). Chronology of the War at Sea 1939–1945. Annapolis, MD: Naval Institute Press. ISBN 1-55750-105-X.
  • Rohwer, Jürgen Authorlink1=Jürgen Rohwer; Hümmelchen, Gerhard (2005) [1972]. Chronology of the War at Sea, 1939–1945: The Naval History of World War Two (3rd rev. ed.). London: Chatham. ISBN 978-1-86176-257-3.{{cite book}}: CS1 maint: numeric names: authors list (link)
  • Tarrant, V. E. (1989). The U-Boat Offensive 1914–1945. London: Arms and Armour. ISBN 978-0-85-368928-7.
  • Waters, John M. Jr. (1966). "Stay Tough". United States Naval Institute Proceedings (December). Annapolis, MD: U.S. Naval Institute. ISSN 0041-798X.
  • Woodman, Richard (2004). The Real Cruel Sea: The Merchant Navy in the Battle of the Atlantic, 1939–1943. London: John Murray. ISBN 978-0-71-956403-1.

Further reading