Convoy SC 42

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Convoy SC 42 was the 42nd of the numbered series of World War II Slow Convoys of merchant ships from Sydney, Cape Breton Island to Liverpool.[1] SC 42 was attacked over a three night period in September 1941, losing 16 ships sunk and 4 damaged. This was the worst Allied loss following the attack on convoy SC 7 the previous year. Two attacking U-boats were destroyed.

Background

Sixty-five ships departed Sydney (Nova Scotia) on 30 August 1941[2] under local escort, bound for Liverpool. The convoy commodore was Rear Admiral WB Mackenzie in Everleigh. A week later, they were met just east of the Strait of Belle Isle by the Canadian 24th Escort Group consisting of the Script error: No such module "WPSHIPS utilities". Script error: No such module "WPSHIPS utilities". (Lt Cdr JC Hibbard, senior officer) with Script error: No such module "WPSHIPS utilities".s Script error: No such module "WPSHIPS utilities"., Script error: No such module "WPSHIPS utilities"., and Script error: No such module "WPSHIPS utilities"..[3] Corvettes Script error: No such module "WPSHIPS utilities". and Script error: No such module "WPSHIPS utilities". were conducting training exercises in the convoy path at the direction of Commander James D. Prentice, RCN, and were prepared to reinforce the escort as the convoy entered an area where U-boats were known to be waiting.[4]

Ranged against them was the Markgraf wolf pack, a group of 14 U-boats in a patrol line southeast of Greenland.

Action

Early on 9 September Template:GS sighted the convoy near Cape Farewell, Greenland, and made an unsuccessful torpedo attack.[3] She then commenced shadowing, while other Markgraf boats moved in. The moon rose on the southern side on the convoy that night, and Template:GS torpedoed the silhouetted 5,229 GRT British freighter Muneric. Muneric and her cargo of 7000 tons of iron ore sank rapidly with all 63 of her crew.[5] Kenogami commenced firing on a surfaced U-boat without benefit of star shell or flashless powder, and quickly lost contact as the crew lost their night-vision in the flash of gunfire.[5]

The convoy made two emergency turns over the next half-hour as ships in the convoy reported sighting three more surfaced U-boats.[6] Another emergency convoy turn ninety minutes later caught Skeena pursuing a contact at speed. While maneuvering to avoid collision, Skeena passed a surfaced U-boat on a reciprocal course, being fired upon by ships in the convoy so closely that SkeenaTemplate:'s guns could not be depressed to bear.[7] Template:GS torpedoed Baron Pentland and Tahchee during the excitement. The tanker Tahchee was towed back to port by Orillia[3] but the 3,410 GRT British freighter Baron Pentland sank with 1,512 standards of lumber and two of her crew.[8]

Another emergency turn by the convoy brought two hours of suspenseful quiet while Orillia aided Tahchee and searched for survivors astern of the convoy.[7] Then U-432 torpedoed the 3,205 GRT Dutch freighter Winterswijk and the 1,113 GRT Norwegian freighter Stargard.[7] The freighter Regin stopped to rescue StarguardTemplate:'s survivors and opened fire on a surfaced U-boat.[7] While Skeena and Kenogami searched for U-boats around stricken Winterswijk and Stargard, Template:GS torpedoed the 3,252 GRT British freighter Sally Maersk, and the convoy made another emergency turn to avoid a surfaced U-boat.[9] Template:GS torpedoed the 7,465 GRT British CAM ship Empire Hudson[3] less than two hours after Skeena regained station ahead of the convoy.[9]

Daylight on 10 September brought several periscope sightings and emergency turns by the convoy before U-85 torpedoed the 4,748 GRT British freighter Thistleglen.[10] Skeena and Alberni counterattacked and damaged U-85 with depth charges.[3] Thistleglen sank with 5,200 tons of steel, 2,400 tons of pig iron, and 3 of her crew.[8]

U-82 torpedoed the 7,519 GRT British tanker Bulysses that evening.[3] U-82 then torpedoed the 3,915 GRT British freighter Gypsum Queen shortly after the convoy ordered an emergency turn.[11] Gypsum Queen sank quickly with 5,500 tons of sulfur and ten of her crew.[8] Bulysses sank with 9,300 tons of gas oil and 4 of her crew.[8] Other ships in convoy rescued the survivors.[11] The corvettes Chambly and Moose Jaw observed the fireworks of these attacks and surprised Template:GS while steaming to reinforce the escort.[3] U-501 was first depth-charged by Chambly then rammed by Moose Jaw as the damaged submarine surfaced. The captain of U-501 jumped from the conning tower to Moose JawTemplate:'s deck; and Moose Jaw sent a boarding party to enter the submarine. Eleven Germans and one of the Canadian boarding party (Stoker William Brown) were lost when U-501 sank.[12] U-501 was the first U-boat sunk by Canadian escorts.[13]

Just after midnight on 10/11 September Template:GS torpedoed the 4924-GRT British freighter Berury and the 4,815 GRT British freighter Stonepool, while Chambly and Moose Jaw were attacking U-501. Then U-432 torpedoed the 1,231 GRT Swedish freighter Garm and U-82 torpedoed the 5,463 GRT British freighter Empire Crossbill and the 1,980 GRT Swedish freighter Scania two hours later while Alberni, Kenogami and Moose Jaw were rescuing survivors of Berury and Stonepool.[3][14] Template:GS launched torpedoes unsuccessfully, Template:GS damaged the Norwegian 2,200 GRT freighter Bestum, Template:GS sank the crippled Scania, while Template:GS sank the Panamanian-flagged straggler Montana.[15]

File:USSTwiggsDD127.jpg
HMS Leamington

On 11 September, the escort was reinforced by the naval trawler Buttermere and Flower-class corvettes Script error: No such module "WPSHIPS utilities"., HMCS Mimosa, and Script error: No such module "WPSHIPS utilities". from convoy HX 147 and by the 2nd Escort Group consisting of the Admiralty type flotilla leader Script error: No such module "WPSHIPS utilities". (Commander WE Banks senior officer), the Script error: No such module "WPSHIPS utilities". Script error: No such module "WPSHIPS utilities"., the Script error: No such module "WPSHIPS utilities". Script error: No such module "WPSHIPS utilities". and Script error: No such module "WPSHIPS utilities". Script error: No such module "WPSHIPS utilities". and Script error: No such module "WPSHIPS utilities". Script error: No such module "WPSHIPS utilities"..[3] Leamington and Veteran dropped 21 depth charges on the afternoon of 11 September while investigating an RAF Coastal Command aircraft report of a U-boat ahead of the convoy. Postwar analysis indicated their attacks probably destroyed U-207.[3]

Aftermath

With the arrival of these reinforcements further attacks by Markgraf were stifled. Though the group continued to shadow, it was unable to mount any further assaults.

The arrival on 12 September of the naval trawler Windermere and Town-class destroyers Script error: No such module "WPSHIPS utilities". from convoy SC 41 and Script error: No such module "WPSHIPS utilities". from convoy HX 147 allowed the remaining original escorts Skeena, Alberni, and Kenogami to leave for refuelling .[3] On 13 September destroyers of the 2nd Escort Group departed for refuelling following the arrival of American destroyers Script error: No such module "WPSHIPS utilities"., Script error: No such module "WPSHIPS utilities". and Script error: No such module "WPSHIPS utilities"..[3] The last incident of the voyage took place three days later when Template:GS torpedoed the 4392-ton British freighter Jedmore as the convoy approached North Channel on the late afternoon of 16 September.[13]

Convoy SC 42 arrived in Liverpool on 20 September 1941. Sixteen ships totalling 68,259 GRT had been sunk and four ships (14,132 GRT) damaged. One ship had turned back. Forty four ships arrived safely and unharmed, and two U-boats had been destroyed, though one of these sinkings was not confirmed until after the war.

Table of losses

[8]

Allied ships sunk

Date Time Name Flag Casualties Tonnage (GRT) Cargo Sunk by...
9 Sept 1941 06:55 Script error: No such module "WPSHIPS utilities". Template:Flagcountry 42 5,591 Steel and explosives Template:GS
9 Sept 1941 21:37 Muneric Template:Flagcountry 63 5,229 Iron Ore Template:GS
9 Sept 1941 23:48 Baron Pentland Template:Flagcountry 2 3,410 Lumber Template:GS
10 Sept 1941 02:10 Winterswijk Template:Flagcountry 20 3,205 Phosphates Template:GS
10 Sept 1941 02:10 Stargard Template:Flagcountry 2 1,113 Lumber Template:GS
10 Sept 1941 02:45 Sally Maersk Template:Flagcountry 0 3,252 Wheat Template:GS
10 Sept 1941 05:04 Empire Hudson Template:Flagcountry 4 7,456 Wheat Template:GS
10 Sept 1941 10:30 Thistleglen Template:Flagcountry 3 4,748 Steel & Pig Iron Template:GS
10 Sept 1941 20:57 Bulysses Template:Flagcountry 4 7,519 Gas Oil Template:GS
10 Sept 1941 21:00 Gypsum Queen Template:Flagcountry 10 3,915 Sulphur Template:GS
11 Sept 1941 00:10 Stonepool Template:Flagcountry 42 4,815 Grain, oats & trucks Template:GS
11 Sept 1941 00:10 Berury Template:Flagcountry 1 4,924 General Template:GS
11 Sept 1941 02:10 Scania Template:Flagcountry 0 1,980 Lumber Template:GS
11 Sept 1941 02:10 Script error: No such module "WPSHIPS utilities". Template:Flagcountry 49 5,463 Steel Template:GS
11 Sept 1941 02:30 Garm Template:Flagcountry 6 1,231 Lumber Template:GS
16 Sept 1941 19:00 Jedmore Template:Flagcountry 31 4,392 Iron Ore Template:GS

U-boats destroyed

Date Number Type Captain Casualties Fate hit by...
10 September 1941 Template:GS IX K/L Hugo Förster[16] 12 Destroyed Script error: No such module "WPSHIPS utilities". (K116) and Script error: No such module "WPSHIPS utilities". (K164)
11 September 1941 Template:GS VIIC K/L Fritz Meyer[17] 41 Destroyed Script error: No such module "WPSHIPS utilities". and Script error: No such module "WPSHIPS utilities".

See also

Notes

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  1. ↑ Hague 2000 p.133
  2. ↑ Hague 2000 p.135
  3. ↑ a b c d e f g h i j k l Rohwer & Hummelchen 1992 p.82
  4. ↑ Milner 1985 pp.67-8
  5. ↑ a b Milner 1985 p.68
  6. ↑ Milner 1985 pp.68-9
  7. ↑ a b c d Milner 1985 p.69
  8. ↑ a b c d e Hague 2000 p.136
  9. ↑ a b Milner 1985 p.70
  10. ↑ Milner 1985 p.71
  11. ↑ a b Milner 1985 pp.71-2
  12. ↑ Milner 1985 pp. 72-3
  13. ↑ a b Blair 1996 p. 364
  14. ↑ Milner 1985 p.73
  15. ↑ Blair 1996 p. 363
  16. ↑ Script error: No such module "citation/CS1".
  17. ↑ Script error: No such module "citation/CS1".

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References

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Further reading

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External links

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