Convoy Battle!

The summer of 1942 had seen two key convoy battles – Arctic convoy PQ17 which battled through during the first half of July to Archangel and Murmansk with the loss of two-thirds of its ships; and Mediterranean convoy WS21S of August, in which victory was snatched from the jaws of defeat by delivering the tanker Ohio to the relief of Malta.

It is these famous incidents, and others like them, which we tend to think of when we consider convoy battles of the Second World War – yet convoy battles were an everyday reality and took place not only ‘over there’ during the Battle of the Atlantic and in the foreign theatres of war, but ‘in home waters’ also around the coasts of Britain.

Every convoy was a potential battle.

In the early hours of 7 October 1942 three groups of E-boats were lurking off Cromer to intercept any passing convoys. The term ‘E-boat’ is a linguistic legacy in English of the Second World War: ‘E-boat’ (‘Enemy boat’) referred to the German Schnellboot or S-boot (‘fast boat’), broadly equivalent to an Allied motor torpedo boat, so the terminology differs between British and German sources.

Out of the three E-boat groups present that day, the 2^nd S-boot Flottille, with six craft, and the 4^th, with three, found a target in convoy FN (Forth North) 832, an east coast convoy from the Thames for Methil, Scotland, with a Trade Division Signal report of 26 ships. Shortly after 4.30 in the morning they opened fire on FN 832. [1]

Some 10 or so miles NE of Cromer lie the remains of some of the convoy, all securely charted since the day they sank in 1942. {2] To seaward lies the remains of ML 339, a British motor launch of Fairmile B type that became a versatile multi-function asset used in several roles and theatres of war, particularly as a submarine chaser.

Around half a mile to port of ML 339 lie the remains of the Jessie Maersk, a British freighter under the control of the Ministry of War Transport (MOWT). As her name implies, she originally belonged to the Danish shipping line of Maersk, whose ships are still a familiar sight in ports around the world.

In 1940 Jessie Maersk had been at sea with a cargo bound for London when Denmark fell under Nazi occupation, and on that voyage was ordered over the wireless by the new regime to put into a neutral port. The master decided initially to put into an Irish port, but, as more information came in, the crew mutinied, took charge of the ship, and put her instead into Cardiff. There the master lodged a complaint with the police, who arrested the crew, but it did not quite end as he clearly expected. Far from being had up before a British court for mutiny, the crew were released by the British authorities with thanks for their action, and the Jessie Maersk, as with so many ships from Nazi-occupied countries, came under the auspices of the MOWT. (On her final voyage two years later she would be crewed by both British and Danish sailors. [3]) By contrast, in 1940, the possible internment of the master as an enemy alien or enemy sympathiser was discussed at Parliamentary level – in the Commons. [4]

Jessie Maersk had an eventful, if not positively hard, war, with a litany of incidents necessitating repairs – collisions in convoy, aircraft damage, and groundings, before being torpedoed and sunk on that day in October 1942. [5]

Another half a mile to port again lie the remains of HMS Caroline Moller, an Admiralty tug, i.e. one requisitioned from civilian service to act as a rescue tug. On the seabed the three ships appear at regular intervals, as if keeping station as they did so long ago in convoy above, with ML 339 still in her protective position guarding against seaward attack on the starboard flank.

Ships lost from the same convoy naturally frequently lie in close proximity, sometimes very close together, but to see three ships in a clear pattern on the seabed, a similar distance apart, is slightly more unusual. This pattern seems consistent with the rapidity of the simultaneous attack from multiple E-boats, and suggests that their victims all sank equally rapidly.

The British coasters Sheaf Water and Ilse were also damaged in the attack, and dropped out of the convoy, returning under tow to the southward. The damage they had sustained overwhelmed them as the turned back, and they too also now lie relatively close to one another, but as a distinct group, some distance from their convoy sisters. [6]

The Merchant Shipping Movement Card for Sheaf Water reveals what we would now call a ‘live feed’ or a ‘real-time update’ in red ink: ‘Torpedoed by E-boat between 57F and 67B buoys [of the swept War Channel], 7.10. Badly holed, now anchored Sheringham buoy. (8.10) Vessel now partly submerged. Report 9/10 states: only two masts visible high water. No further action will be taken (10.10). Now in about 8 faths [fathoms], salvage not practicable. (5.12)’ [7]

This was the second major incident in the Ilse’s wartime career. On a similar convoy voyage from Southend for the Tyne in June 1941, she had struck a mine on the 20^th off Hartlepool. She seems to have gone down by the bows as her Shipping Movement Card notes: ‘the after end of the vessel floatable. Fore end constructive total loss.’ The stern half arrived at Hartlepool 10 days later and was docked, before being taken up the river to Middlesbrough for repairs, where a new forepart was built on, and by February 1942, she was back on the east coast convoy run. She was ‘presumed torpedoed by E-boat’ between the same two buoys as Sheaf Water. She then ‘sunk in tow’ (8.10) and by the 12^th October she was ‘Submerged 2 mls [miles] E of Haisboro, 4ft of mast above water at low water spring tides.’ Salvage was also dismissed ‘not practicable’ on 5 December. [8]

The Ilse herself is thus also an unusual wreck, where parts of the same ship are charted in two distinct locations from different wreck incidents a year apart. [9] (In a previous blog, we’ve covered the loss of the Nyon, 1958/1962.)

We can see that the events of 7 October 1942 resulted in archaeological patterns not always seen on the seabed as a result of convoy attacks, in which ships scatter, take evasive action, drift after being struck before finally sinking, return fire, cover for other ships in convoy, put themselves in the line of fire in rendering assistance, or are attacked several times over the course of a voyage, with separate losses in quite different locations. On that day it seems that the E-boats swept in with such speed there was little time to return fire, resulting in three ships sinking together in short order and two that sank shortly afterwards as they turned back.

It was less a convoy battle than a devastating ‘hit and run’ raid leaving an archaeological legacy which forms a memorial to the lost crews. That archaeological legacy also preserves in lasting and concrete form some rather less tangible things: firstly, the locations of the buoys marking the swept War Channel, against which all the attacks were recorded, and which naturally disappeared after the war; secondly, it would appear, the disposition of the convoy relative to one another as they turned north-west on their voyage.

Footnotes:

[1] Convoyweb; Rohwer, J and Hümmelchen, G 2007-2022 Chronik des Seekrieges 1939-1945 Oktober 1942 (Württembergische Landesbibliothek: published online) (in German)

[2] United Kingdom Hydrographic Office: ML 339 UKHO 9243; Jessie Maersk, 9238; HMS Caroline Moller, 9231

[3] Daily Herald, 22 April 1940, No.7,546, p10; widely reported in national and regional press

[4] Hansard, House of Commons Debate 30 April 1940, Vol.360, c.541

[5] Merchant Shipping Movement Card, Jessie Maersk, BT 389/17/22, The National Archives

[6] United Kingdom Hydrographic Office: Sheaf Water, UKHO 10554; Ilse, 10562

[7] Merchant Shipping Movement Card, Sheaf Water, BT 389/26/230, The National Archives

[8] Merchant Shipping Movement Card, Jessie Maersk, BT 389/16/65, The National Archives

[9] United Kingdom Hydrographic Office: UKHO no. 5624 (section, off Hartlepool, 1941); UKHO 10562 (off Cromer, 1942)