British and Allied Submarine
Operations in World War II
Vice Admiral Sir Arthur Hezlet KBE CB DSO* DSC

 

 

     
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CHAPTER X

The Atlantic, Home Waters and North Russia: June - December 1941

References
Patrolgram 8 S/M War Patrols in Home waters and Atlantic - second half 1941.
Map 18 British submarines in North Russia Aug-Dec 1941
Map 19 Third and fourth 'Iron Rings' Dec 1941

WITH THE SINKING OF BISMARCK in late May, the strategic situation in Home waters was that the German surface fleet was divided into two groups with Scharnhorst, Gneisenau and Prinz Eugen at Brest and the newly completed Tirpitz with Lutzow, Scheer and Hipper in German Baltic ports. With the arrival of the Prinz Eugen at Brest in early June, there were no German warship raiders left at large. Both these groups constituted 'fleets in being' and steps had to be taken to try to intercept any units which put to sea. There were also four German armed merchant raiders at large on the oceans and a number of supply ships were in support of them. Furthermore the German U-boat campaign had taken a serious turn. A hundred U-boats were now in existence and our merchant ship casualties rose sharply during May. The U-boats were doing their best to extend their range of operations by using supply ships and thirty of our merchant ships were sunk as far south as Freetown. Enemy coastal traffic in the Bay of Biscay consisted of some iron ore ships plying between Bilbao and Bayonne and a few small blockade-runners to Spain and Portugal. There was a trickle of large blockade-runners mostly from South America, but some from Japan. In the Channel most of the traffic was for military purposes and was irregular. On the Norwegian coast, iron ore traffic was important although not so important as in winter when the Baltic was frozen. At all times of the year there was traffic to supply the German armies in North Norway. On both the Norwegian coast and in the Bay of Biscay, therefore, there was a strong case to maintain effective submarine patrols to watch for sorties by the German heavy units, to wage a war of attrition on U-boats, blockade runners and enemy supply ships as well as to interdict the enemy iron ore and military traffic along the coasts. The Admiralty, however, held to their directive that the Mediterranean was the primary theatre for our submarines and continued to send all reinforcements to that area. Strength on the Home station was reduced to a single flotilla of a size that could no longer look after both the Norwegian coast and the Bay of Biscay at the same time. With the short summer nights in northern latitudes and the memory of painful casualties and little to show for it during the mid summer of 1940, the decision where to use them was not difficult to make. VA(S) chose the Bay of Biscay for operations and decided virtually to abandon the Norwegian coast until the end of August. It was, however, decided to keep a submarine at Lerwick at short notice for sea, for use should sufficient warning be received of any movement of enemy heavy units.

The need for submarines for reconnaissance to detect enemy main units putting to sea had, in fact, decreased. This was because Intelligence had improved substantially. Not only were the cryptographers reading the German naval as well as air force ciphers regularly and with little delay, but there were more photo-reconnaissance aircraft available which were of longer range1. It was also easier to set up a spy network in the French bases than in Germany. As a result the positions of the German main units were normally known and checked regularly in Norway, in the Baltic and in the Bay of Biscay. Signal Intelligence, however, seldom gave the whole picture and only very rarely revealed enemy intentions. The reason was that it could do nothing about written orders sent by courier or signals transmitted by landline.

The Bay of Biscay therefore became the principal area of operations during the summer in Home waters. In mid June there were four submarines on patrol there, which were Trident, Tuna, Sokol and Seawolf. Rubis (Lieutenant de Vaisseau H Rousselot) had just returned from the same area where she had been sent to intercept raiders. In bad weather on 8th June, however, her helm jammed at 25 degrees to starboard. She had to proceed in circles for two days and nights until the weather moderated and it was possible to make repairs. It was difficult to keep four submarines on patrol especially after the departure of two submarines for North Russia as will be related shortly. Numbers on patrol fell to three and later only two. This was a pity as in the second half of June, Kota Pinano, Ermland and Spichern, which had been at sea to support Bismarck, all reached France. Three blockade-runners, the Italian Atlanta and Todoro and the German Regensburg also got into Biscay ports at this time. The patrols themselves were not particularly eventful. Scharnhorst, Gneisenau and Prinz Eugen were, in fact, damaged and under repair for most of this period. Sealion (Commander B Bryant DSC RN) found an Admiralty Fleet Order that encouraged the destruction of fishing vessels in enemy hands and in July sank a French tunny fisher and picked up the crew. She sank another and then a steam trawler and had twenty-six survivors on board. Some of these she transferred to another trawler. VA(S) did not agree with these attacks as they compromised the positions of the submarines and no more took place, although supplies continued to be sent to the French Resistance. On 5th July Tigris (Commander HF Bone DSO DSC RN) fired six torpedoes at an Italian U-boat escorted by two trawlers. The range was 3000 yards and she thought she had hit at the time, but subsequent research does not support this. On 9th July Tuna (Lieutenant Commander MK Cavenagh-Mainwaring DSO RN) was bombed by an RAF aircraft, fortunately without damage and next day gained contact with a U-boat on asdic. She fired a single torpedo at 500 yards with a depth setting of 32 feet but without result and two hours later heard the U-boat using its diesel engines. She fired another torpedo also without result. Later on during her patrol, on 19th July, she sighted a large merchant ship sixty miles west of the Gironde. Destroyers escorted her and Tuna fired a salvo of six torpedoes, but the range was some 6000 yards and again there was no result. On 15th July Sokol (Kapitan B Karnicki) also missed a large ship west of the Ille de Yeu.

On 21st July, Coastal Command aircraft reported that Scharnhorst in Brest was probably ready for sea. On the very next day she was found to have sailed. We had Tuna, Sokol and Trident on patrol in the Bay at the time but they saw nothing. On 23rd, Coastal Command found her again in La Pallice. She was heavily attacked by aircraft of both Bomber and Coastal Commands, and was seriously damaged. On 24th she returned to Brest with 3000 tons of floodwater on board and went straight into dock. By the end of July the number of submarines available for the Biscay patrol had fallen to four, (Tuna, Sealion, Seawolf and Sokol). Seawolf (Lieutenant RP Raikes RN) missed U562 off Lorient in a snap attack on 30th July although the range was 2500 yards and she expended a full salvo of six torpedoes.

It was after the return of Minerve from patrol at the beginning of June that the Norwegian coast was abandoned for the mid summer months. On 10th June, signal intelligence reported the movement of a heavy German unit northwards. P31 (Lieutenant JBdeB Kershaw RN) was at once sent from Lerwick to patrol midway between the Shetlands and Norway. Three days later, Coastal Command aircraft sighted Lutzow outward bound in the Skagerrak. An aircraft strike torpedoed her but she got back to Kiel under her own power. Nevertheless a sortie onto the trade routes was prevented and she was out of action until January 1942. Subsequently P31 and Minerve, instead of remaining at short notice in Lerwick, were used for anti U-boat patrols north east of the Faeroes. Here they were still available if there was a sortie by enemy heavy ships, and they had a chance to catch a U-boat too.

After the sinking of Bismarck, the escort of convoys by submarines from Gibraltar continued for another three months. The exact state of the German ships in Brest was not known and it had to be assumed that they were able to come out and raid commerce. The escort of convoys from Halifax, on the other hand, ceased. The U-boat campaign had spread westwards across the Atlantic and anti-submarine escorts began working from Iceland and Canada. At the end of May, anti-submarine vessels escorted HX129 right across the Atlantic. As there were no known warship raiders at sea, submarines as escorts were less welcome and tended to get in the way more than they had when the anti-submarine escorts only brought them half way across. In mid-June, our cryptographers revealed that a supply U-boat was to be in a position about a thousand miles east of New York and south east of the Newfoundland Banks. Thunderbolt (Lieutenant Commander DB Crouch DSO RN) was sent out from Halifax to intercept. On 18th June she sighted a U-boat but in a westerly gale. She nevertheless fired a salvo of six torpedoes but two tubes misfired, one torpedo running hot in its tube. The range was 4500 yards and it was doubtful if the torpedoes could keep their depth in such a sea. They all missed, although two more torpedoes were fired later and the U-boat, which was U557, dived and was not seen again. Early in July, the Second Submarine Flotilla at Halifax was disbanded. Forth was used to support escort vessels, and the last two submarines, Talisman and Thunderbolt, were sailed for the Mediterranean.

In May, the Eighth Flotilla submarines, as we have seen, began to be used in the Mediterranean. By the end of the month the Netherlands submarines 021, 023 and 024 started patrols in the western basin and Pandora, Severn and Clyde were kept to escort Gibraltar convoys. The two River-class submarines, apart from their size, were not considered suitable for the Mediterranean, as they could not dive deeper than 250 feet. However, there was a change of heart and both made a Mediterranean patrol in June. The Sierra Leone convoys now had continuous escort, SL81 being the first during July. The Admiralty then decided that Severn and Clyde should be used for Atlantic patrols in areas formerly occupied by French submarines. Clyde patrolled off the Cape Verde islands at the end of June and early in July, and off Cape Finisterre later in July. At the end of July, Severn escorted HG69 home from Gibraltar. On 31st July the convoy was diverted to avoid a U-boat concentration and Severn was detached to carry out an anti U-boat patrol in the vicinity of the Seine Bank off the coast of Africa. On the night of 6th/7th August a U-boat was sighted on the surface in rough weather. Four torpedoes were fired but those missed, so two more were fired, one of which hit and sank the Italian submarine Bianchi. On passage back to Gibraltar, Severn sighted a German U-boat on 9th August but she dived before an attack could be made. Clyde escorted HG7O home in September and this was the last Gibraltar convoy to have a submarine escort. In September, Clyde was despatched to Freetown to give some much-needed anti-submarine training to the escorts stationed there. She was ordered to patrol off the Canary Islands on the way, and arrived off Teneriffe on 24th. Almost at once she was ordered to proceed with all despatch to Tarrafal Bay in the Cape Verde Islands where signal intelligence indicated that U-boats were about to refuel. Clyde made the passage at 17.5 knots, which was her highest reliable continuous speed, arriving on 27th September. She dived into Tarrafal Bay and surfaced after moonset. At 0030 she sighted U68 leaving the anchorage but before she could turn to fire she saw U111 on her port beam. She turned towards U111 to ram and engage with her gun, but her quarry dived and she passed over her. U68 was then pursued and six torpedoes fired after her. U68 saw the tracks and dived and escaped. Clyde then dived too and unsuccessfully attempted to regain contact by asdic. She also reloaded her torpedo tubes. Clyde then surfaced to charge and after an hour sighted a third U-boat, U67, surfacing close by. Both submarines tried to ram each other and U67 hit Clyde right aft causing minor damage. Both submarines then dived and there were no further contacts. The three U-boats had met to transfer torpedoes from U111 to U68 and a sick man from U67 to U111. U67 was damaged and had to return to base. Clyde (Commander DC Ingram DSC RN) then returned to Gibraltar.

On 22nd June, Germany invaded Soviet Russia and the maritime situation in Home waters changed again. The Admiralty were keen to find out how best they could co-operate with the Russian Northern Fleet and Rear Admiral Vian was sent to find out. He reported that the Russians were worried about the build up of the German Army in North Norway and Finland through the ports of Kirkenes and Petsamo, and were afraid that the enemy would soon be strong enough to advance and capture Murmansk. The Russians wanted attacks to be mounted on the sea supply route up the Norwegian coast. At the end of July, the Home Fleet aircraft carriers Victorious and Furious struck at Petsamo and Kirkenes but the results were disappointing and the losses of aircraft serious. It was clear that the Luftwaffe was strong in the area and that submarines were probably the best way to attack the traffic in spite of the constant daylight. It was therefore decided to send two submarines north straight away and to base them at Polyarnoe2. Tigris left for the North on 26th July and Trident was recalled from patrol in the Bay of Biscay and left on 1st August.

A Senior British Naval Officer with a submarine staff officer had been appointed to North Russia and arrived before the two submarines. In consultation with the Russian C-in-C Northern Fleet they decided upon patrol areas and other matters necessary for operations. The submarine force of the Soviet Northern Fleet had a strength of fifteen boats. It was organised as a 'brigade' of three divisions under Captain 1st Class NI Vinogradov. The first division consisted of two large submarines of the K-class and one older boat. The K-class were of 1000 tons with a speed of 18 knots and mounted ten torpedo tubes. They were also capable of laying mines. The second division was composed of six boats of the Shchuka-class of 800 tons and six torpedo tubes and they were equivalent to the British S-class. The third division had six boats of the small coastal M-class of 200 tons with two torpedo tubes. It had already been decided to reinforce the Northern Fleet submarines and eight boats were under orders to proceed from the Baltic to Archangel by the White Sea Canal. They arrived at intervals between September and November. Four of the reinforcements were of the large K-class and the rest of medium size. On the outbreak of war, four of the Russian submarines were sent to patrol off the north coast of Norway and five were kept back in defensive positions to protect the evacuation of the bulk of the civilian population from Murmansk and to support the Russian XIV Army. The XIV Army was defending Murmansk against the German XIX Mountain Corps, which attacked at the end of June. The Russian submarines kept up their patrols on the north coast of Norway and up to early August had made four torpedo attacks, which had all missed. They also made an attempt to penetrate into Petsamo. The German opposition in the area now consisted of five large destroyers based at Kirkenes as well as a flotilla of UJ-boats. Two German U-boats were also sent to patrol off Murmansk, and the Luftwaffe from their air bases at Banak and Bardufoss covered the whole area.

Tigris arrived on 4th August and was escorted in by a Russian destroyer. Trident met another escort and arrived in Polyarnoe on 10th August. It was decided that Tigris (Commander HF Bone DSO DSC RN) should patrol off Porshanger Fjord with special interest in Mageroy Strait and she sailed on 11th August. The weather was glassy calm with variable visibility and daylight was constant, She sighted two German destroyers in Svaerholthaven on 13th August and went on to Breisund. She had to be careful because of air patrols and a large number of shore lookout posts. Some ships were sighted in Breisund but attacking conditions were impossible so she returned to Svaerholthaven. Here on 17th she fired four torpedoes at a range of 4500 yards and, in spite of a gyro failure, hit and sank the westbound Haakon Jarl of 1482 tons. There was considerable anti-submarine activity during the next two days. Trident (Commander GM Sladen DSO RN) left Polyarnoe for patrol off Soroy on 16th August. Diving in between Hjelmsoy and Ingoy on 19th she fired two torpedoes at Levante of 4789 tons but missed. She then surfaced and opened fire with her gun obtaining five hits before she had to dive because of the return fire and the fire of a shore battery. On 21st August she attacked the German minelayer Bremse in Kvaenangen Fjord with four torpedoes at a range of 1500 yards and inexplicably missed again. Three hours later she fired two more torpedoes also at a range of 1500 yards at the Norwegian tanker Tripp and missed yet again. Next day she had better luck in an attack on a convoy of four ships escorted by two trawlers. She fired six torpedoes at a range of 600 yards and obtained three hits on Ostpreussen of 3030 tons and sank her. A counter attack of nine depth charges was ineffective. On 24th she sighted Bremse again but she passed out of range. On 30th August she saw a low flying aircraft which was found to be escorting a convoy of four ships west of Silsden with two destroyers and two trawlers, She fired her last two torpedoes aimed individually at two of the ships, hitting and sinking the troopship Dona II of 2938 tons with considerable loss of life. She also sank Bahia Lanca of 2581 tons. Trident then suffered a forty-six-charge counter attack from which she emerged unscathed. On her way back to Polyarnoe she sighted a U-boat on the surface and gave chase hoping to engage with her gun. The U-boat, which was U566, saw her and dived and fired torpedoes at Trident, which missed. On 12th September the Russian submarines scored their first success when Shch 422 sank Ottar Jarl of 1459 tons off Tanafjord. Two days earlier K2 laid the first of a number of minefields and this was off Vardo.

On her second patrol, Tigris sank Richard With of 905 tons in Breisund. This was on 13th September with two torpedoes at a range of 1500 yards. Four days later she missed a ship in convoy when she fired four torpedoes at the very long range of 8000 yards. In Trident's second patrol, she fired three torpedoes at the small merchant ship Weser escorted by a destroyer and an R-boat off Rolsvoy. This was on 23rd and, hampered by the presence of an aircraft, and with a range of 5000 yards, she missed. On 27th also off Rolsvoy she fired six torpedoes at a merchant ship escorted by trawlers. The range was 4000 yards and she missed the target, but hit and sank one of the escorts, which was UJ1201. In the counter attack Trident suffered minor damage. Finally on 30th she fired her last three torpedoes at a large merchant ship escorted by two R-boats. Fortunately the range was very long (7000 yards) and she missed since this was the hospital ship Brika. On return to harbour, Trident noted that the enemy were using more escorts than before and that they used the dark hours, which with the onset of winter, were becoming longer and made attacks more difficult.

When Tigris sailed for her third patrol on 6th October, she had only ten torpedoes on board. Supplies were expected in the first of the North Russian convoys but this did not arrive at Archangel until 10th October. Tigris patrolled off Svaerholthaven and on 11th October she attacked a convoy of three ships with an escort of four trawlers. She fired four torpedoes at a range of 3000 yards. It was snowing and although she claimed hits at the time, the attack was unsuccessful. On 14th, two more merchant ships were sighted escorted by a destroyer and three minesweepers. She lost trim and 'missed the DA' and one torpedo was fired in error, without result. Later the same day she attacked two more merchant ships with a trawler escort firing first three, and then four, torpedoes. She claimed to have hit one ship at a range of 1500 yards and that the second ship at a range of 4000 yards had taken avoiding action. In fact she missed them both. This was Tigris' last patrol in North Russia and she returned to the United Kingdom on 10th October. Trident left for her third and last patrol that was off Svaerholthaven, on 16th October after completing repairs from her depth charge attack. She was only carrying twelve torpedoes and on 3rd November, she fired three of them at a small merchant vessel in Porsanger Fjord. This was at a range of 2500 yards but she hit and sank her target. This was Flottbeck of 1950 tons. Shortly afterwards two more torpedoes were fired and these hit and sank the anti-submarine vessel UJ-1213. Next day she fired four torpedoes at long range (6000 yards) at another small merchant vessel without success and finally made a night surface attack with three torpedoes at long range too (6500 yards) but she was seen by the escort and damaged in a counter attack and the torpedoes missed. Trident sailed for home waters on 15th November, Sealion and Seawolf having arrived at Polyarnoe to take her place.

In this mini-campaign Tigris and Trident made eighteen attacks firing 62 torpedoes and sinking the anti-submarine vessels UJ-1213 and UJ-1201 and six ships of 18,839 tons and damaging another of 4769 tons. It can hardly be claimed that such results 'saved' Murmansk, but the sinkings seriously worried the German naval command. They first attributed the casualties to the Russians, and at one time believed it unsafe for ships to round the North Cape. They sent for the 12th Anti-submarine Flotilla from the Bay of Biscay to reinforce the area, and opened up a new line of supply by the Baltic and overland through Finland. It was, of course, the Red Army that defended Murmansk, but the British submarines helped substantially. An additional bonus was that the Russian submarines learnt from them, and their efficiency was increased. This diversion of strength from the Bay of Biscay therefore proved well worthwhile and, considering that operations began in constant daylight, they were fortunate to be conducted without any casualties. During this period the Russian submarines were active and the K-class laid a number of minefields and the smaller submarines landed agents. M176, when trying to penetrate into Kirkenes ran into nets but survived. There were many missed attacks but on 17th October, Shch 402 sank Vesteraalen of 602 tons in Soroysund. Russian submarine mines sank Bessheim of 1774 tons.

By the middle of August, there was sufficient darkness to resume patrols off the Norwegian coast. The Netherlands O14 (Luitenant ter zee 1e K1 G Quint) led the way and took up position off Kors Fjord but she had a blank patrol, all the traffic passing in Indreled behind the islands. She also reported that there did not appear to be any air or surface patrols on the Norwegian coast. The Free French Rubis (Lieutenant de Vaisseau H Rousselot) followed a day or two later and laid mines off Josing Fjord. The minefield was half laid when she sighted a small southbound tanker and attempted an attack but a torpedo ran hot in her rotating deck tube and it failed. Fortunately the enemy did not detect her. After completing her lay, she attacked two merchant ships with her two bow torpedo tubes, both of which hit a Finnish ship of 4360 tons. The torpedo explosions damaged Rubis herself and split open a number of battery cells. She lost control and after being on the bottom for five hours managed to surface with a fifty-degree bow up angle. The battery gas forced the crew on to the upper deck but she was able to get a wireless signal through to tell of her plight. She was forty miles off the Norwegian coast and fortunately the enemy did not locate her. On 23rd August, she managed to get her engines going and made contact with surface forces sent out to her assistance. She arrived at Dundee on 25th under her own power. Rubis' mines accounted for one small steamer, Cito of 124 tons. O14 and Rubis were followed by Minerve (Lieutenant de Vaisseau PM Sonneville), who took up position off Utvaer. She had a blank patrol and her Commanding Officer strongly advocated patrolling inside the Fjords, which was where the traffic was to be found. A severe shortage of operational submarines in Home waters, however, meant that the taking of undue risks could not be allowed.

At the end of August, signal intelligence revealed that Scheer was about to sail from the Baltic. On 11th September the RAF found that she had left Kiel. There were no submarines off the Norwegian coast at the time and O14 was at once sailed to patrol off Utsire. Scheer was then found to be in Oslo Fjord and Bomber Command attacked her there. On 18th September she was located again back in Germany at Swinemunde. O14 had an uneventful patrol in very bad weather. She was relieved by Minerve, who left Lerwick on 10th September to patrol off Utvaer. Her orders were to attack enemy warships and northbound merchant vessels. Sighting nothing off the coast, Minerve entered Bue Fjord and on 21st September she attacked, but missed, a small merchant ship. On 28th September she entered Frosjoen Fjord and sighted three 250 ton U-boats. The narrow waters made an attack impossible. Minerve returned the next day but there were no targets to be seen and she set course back to Lerwick according to her orders. Both Minerve and O14 sailed for patrol again on 17th October, Minerve for the Obrestadt area and O14 to the south of Stattlandet. Both these patrol positions were where the enemy traffic had to come out to sea. On 25th, Minerve sighted a large merchant ship but was unable to get in an attack and this was repeated three days later. On 29th, however, she fired torpedoes at a small Norwegian tanker but they missed. A convoy was sighted on 31st October which she was unable to attack and on 27th she returned to Lerwick. The weather in both these patrols was very bad and both submarines subsequently needed extensive repairs. Minerve broke down at the start of her next patrol, and both she and O14 ended up in dockyard hands.

There had fortunately been no submarine losses due to enemy action in Home waters during the summer but on 19th July the new submarine Umpire, on passage with convoy EC4 off the Wash, broke down and dropped astern. She was rammed and sunk by an escort of convoy FS44 coming the other way. Her Captain, Lieutenant MRG Wingfield RN and fourteen men were rescued but two other officers and fourteen men were drowned. Such a loss could be ill afforded at this time when the numbers of operational submarines in Home waters were low.

Meanwhile the submarines for the Bay of Biscay had fallen to two. Sokol had been sent to the Mediterranean and Tuna was under repair leaving only Sealion and Seawolf to watch the German squadron in Brest. Both these submarines carried out a patrol in the Bay during September. Sealion (Lieutenant GR Colvin RN) supplied the Resistance and exchanged agents with a fishing vessel off Penmarch on 16th and then patrolled off the Loire and the Isle de Yeu. She sighted a large escorted merchant ship but was unable to attack due to bad visibility and a navigational alteration of course by the enemy. Seawolf (Lieutenant RP Raikes RN) encountered a U-boat but was unable to get into an attacking position. When she left patrol, both Seawolf and Sealion were withdrawn to relieve Tigris and Trident in North Russia. From 3rd October, there were no submarines on patrol in the inner Bay of Biscay for over a month. It was fortunate that the enemy battle cruisers were being kept immobilised by the RAF during this time. Even so the blockade-runner Annalis Essberger from Japan got in to Bordeaux safely.

At the end of October and in November, three submarines did working up patrols off the Bay of Biscay. P36 patrolled some 400 miles west of Lands End from 24th October to 7th November, an area that was safe from enemy anti-submarine measures but gave a chance of sighting a U-boat. Una patrolled 150 miles west of Bordeaux from 4th-20th November and P38 relieved P36 and patrolled from 7th-23rd November, These patrols were uneventful except that P36 sighted a few trawlers and P38 lost an officer overboard in bad weather. The minelayer Rorqual had returned from the Mediterranean to refit early in November and as Devonport Dockyard was not ready to take her, she was used to lay 50 mines off La Rochelle on 18th and 19th November, This field sank the French trawler Coligny of 600 tons. On her way back, Rorqual was attacked at night by a U-boat, the torpedoes narrowly missing her. P36 (Lieutenant HN Edmonds RN), now fully worked up and operational, patrolled off Belleisle in late November. She sighted a U-boat on 26th and missed with two torpedoes from fine on the quarter. The range was 3000 yards and she lost trim in the heavy swell and 'missed the DA'. Next day she met a fishing vessel for a transfer of petrol and stores for the French Resistance. Una (Lieutenant DSR Martin RN), on her way to the Mediterranean, made a short anti U-boat patrol between 11th and 14th December but without result. When she resumed her passage, however, a U-boat attacked her in heavy weather, the torpedoes just missing her astern. Throughout this period a number of our submarines passed through the Bay on their way to and from the Mediterranean and would have been available to patrol there in emergency. Porpoise, Trusty, Thorn, Proteus, P34 and Sokol passed southbound and Taku and O23 as well as Rorqual northbound.

During the autumn, Coastal Command of the RAF had been planning what came to be known as the 'Bay Offensive'. This consisted of patrols in the Bay of Biscay with radar fitted aircraft to sink U-boats on passage. Clearly the presence of our submarines with their bombing restrictions interfered seriously with such an operation. On 2nd December, VA(S) agreed to keep our submarines clear of practically the whole Bay of Biscay for six nights on either side of full moon, which the aircraft needed to see their target. For the rest of the time, submarines could use the area but were always to be submerged by day. This increased the time on passage for submarines proceeding to and from the Mediterranean but greatly helped Coastal Command. Any disadvantage to the submarines was to a certain extent mitigated by the probability that the German heavy ships would not try to break out in periods of full moon.

Sealion and Seawolf arrived in Polyarnoe early in November. By this time conditions in the area were very different; it was now getting cold and there was plenty of darkness, and in December only a few hours of daylight. Furthermore Russian submarine strength had been increased by the reinforcements from the Baltic, and they were able to do more. There were now twenty-three boats in the Russian Northern Fleet and in September they had operated as far round as the Vestfjord, and had claimed to have sunk five ships. Tigris and Trident, on relief by the two S-class received a signal of congratulation for their exploits from the Admiralty. Sealion (Lieutenant GR Colvin RN) sailed from Polyarnoe for the Svaerholthaven area on 12th November, and missed a small convoy with a torpedo at a range of 5-6000 yards on 15th, the target being difficult to see against the land. Three days later she fired two torpedoes at a small tanker at 6-800 yards but missed again. She then surfaced and sank the target by gunfire, which was Vesco of Bergen of 331 tons with a cargo of benzene for Kirkenes. Sealion took two prisoners and returned to Polyarnoe to land them as one was badly wounded. Seawolf (Lieutenant RP Raikes RN) sailed to patrol in Syltefjord and on 21st started a night surface attack on a four-ship convoy. The main battery fuses blew just as she was about to fire and caused some confusion. She managed, however, to get away four torpedoes on a late track but at long range (5 - 6000 yards) and they missed. The next night she sighted a stopped tanker, 6400 yards away and fired two torpedoes, which, although claimed to have hit at the time, actually missed. On 24th she sighted a four-ship convoy at night that was westbound and, after a chase, fired four torpedoes at a range of 4000 yards sinking Bahia of 4117 tons. A fifth torpedo was fired in error and had a gyro failure and she had an anxious few moments avoiding it. Sealion left for her second patrol on 2nd December and on the 5th torpedoed and sank the merchant ship Island of 683 tons off Nordkyn. This was a day-submerged attack at a range of 900 yards with a salvo of three. The Germans claimed to have sunk Sealion in a counter attack, and this caused some anxiety but she was not even damaged. Seawolf left Polyarnoe again on 5th December in very cold weather for the Bassfjord area. She attacked a convoy on 12th December with six torpedoes fired in two groups at ranges of 600 and 2000 yards but they all ran under. When returning to Polyarnoe on 19th she was machine-gunned by a Ju88 aircraft. Sturgeon (Lieutenant MRG Wingfield RN) arrived in Polyarnoe on 11th January but by this time it had been decided to leave the area to the Russians. Sealion had already left on 21st December for a patrol in the Vestfjord on her way back to the Holy Loch. Soon after, Seawolf left to patrol in the Vestfjord and in Fro Havet on her way back too. Sturgeon was also withdrawn soon after her arrival.

By now the Russian submarines were having slightly better results. On 9th December the enemy lent a hand and U134 scored an 'own goal' by sinking Steinbek of 2184 tons off Tanafjord. Russian submarine mines sank UJ1110 and two small ships but K3 was forced to the surface in a counter attack by three UJ-boats. K3 opened fire with her gun sinking UJI708 and the other two UJ-boats only mounted small arms and K3 escaped. On 21st December, M174 sank Emshorn of 4301 tons off Vardo.

On the Norwegian coast in November, intelligence supported the belief that Scheer was about to sortie for commerce raiding and that she was likely to take supply vessels with her. The only submarine that was available was P35 (Lieutenant SLC Maydon RN), which had completed her trials and work-up and was ready for her working up patrol. Instead of being sent to a 'safe' area for anti U-boat purposes, she was despatched to patrol off Utvaer with orders to attack and report enemy cruisers and above, and any merchant ships with them. She was on patrol from 4th-14th November but sighted nothing. Trident (Commander GM Sladen DSO RN), who had left Polyarnoe on 15th November to patrol off the North Cape on her way back to the United Kingdom, was ordered to take up a position south west of Stattlandet instead. Almost at once, however, the scare subsided and the submarines on the Norwegian coast became involved in Commando operations that were being planned in the area. Tuna (Lieutenant MBSt John RN) had already left the Holy Loch on 12th November to investigate radar and navigational marks in the Vestfjord area. She was restricted by orders not to attack anything smaller than a cruiser. She was bombed by German aircraft on 18th November and later the same day she was ordered to cancel her radar reconnaissance and patrol off Utvaer as part of the operations to intercept Scheer. She already however, had gained useful information. Tigris (Commander HF Bone DSO DSC RN) after resting from her exertions in North Russia, took part in the first Commando operation known as 'Anklet'. This was intended as a landing to interfere with the enemy's communications with North Norway. Tigris made the necessary reconnaissances and on 25th December acted as a radio beacon off Skomvaer to lead in the surface forces. After the operation she patrolled off Utvaer. At the same time a second Commando operation took place south of Stattlandet at Vaagso (Operation 'Archery'). In this Tuna acted as a radio beacon to lead in the raid, which was most successful.

On 15th December, when there were no submarines on patrol in the inner Bay of Biscay and the only submarines in the vicinity were on passage to and from the Mediterranean4, or in a working up patrol well out to sea5, intelligence revealed that a sortie by the whole German squadron in Brest was likely. Prinz Eugen had undocked on the 14th December and Scharnhorst was due to undock on 16th and Gneisenau on 21st. All these ships were believed to be fully repaired and it was a moonless period suitable for a sortie. Bomber Command renewed its attacks both by day and night but it was considered essential for the submarine command to take energetic measures to prevent a breakout as well. All submarine and anti-submarine training was stopped and every available submarine was ordered to the Bay. The intention was to form another 'iron ring' by stationing the submarines on the arc of a circle 300 miles out from Brest so as to catch the enemy in daylight presuming that he would sail as soon as it was dark.

Altogether fifteen submarines wore mustered. Nine were training submarines, which were Oberon, Otway, H28, H31, H33, H34, H43, H50 and the Netherlands O10. Two were working up, P39 and the French Junon: O21 was on passage back from the Mediterranean; H32 had just completed a refit at Sheerness and P36 was at Portsmouth having just finished a patrol in the Bay. Ursula, returning from the Mediterranean, had been diverted to an anti U-boat patrol off Alboran Island, was also sailed for the Bay but Regent, also returning from the Mediterranean, had few torpedoes on board and she was allowed to proceed on her way. The plan was to have nine of these submarines in position by 21st December and another four by 22nd, but Oberon had defects in her pressure hull and had to return to Rothesay, and H43 and H34 developed other defects and had to put in to Yarmouth. The 'iron ring' began to form on 19th and by the 21st consisted of (from north to south) H31. O10. H50, H28, H33, P39. Otway, O21 and Ursula. The submarines P38 and H32 from Portsmouth took up positions off Cherbourg in case the enemy were to proceed up the Channel. Scarcely was the 'iron ring' established when air reconnaissance of Brest showed all three ships in their usual refitting berths and it was surmised that they were not yet ready for sea. The submarines were therefore recalled to Falmouth where they were to remain at short notice. P36 and P39 were ordered to continue their passage to the Mediterranean and Ursula, P38 and H32 were sent into Portsmouth. The Netherlands submarines O21 and O10 went to Milford Haven where they were joined by O9. One submarine did not return. This was H31, which had not been seen since her escort off Lands End released her on 19th. The cause of her loss is unknown, although it is possible that she hit a drifting British mine laid as a submarine trap off the Little Sole Bank in March. She was lost with all hands including her Commanding Officer, Lieutenant FB Gibbs RN, three other officers and 29 men.

Before many days had passed, however, opinions began to alter again. It was realized that if the heavy attacks made by Bomber Command on the ships had not damaged them, then they were likely to drive them out of Brest to seek somewhere safer. On 24th December, H28, H32 and H43 sailed for patrol again, followed next day by H33 and Otway, and the day after that by H34, Junon and O10. O21, O9 and H50 were temporarily out of action. The patrol positions had now been changed and were on an arc some 150 miles from Brest. This was because it was now a period of full moon and it would be possible to make night attacks. The aim of the submarines was to attack and report enemy cruisers and above, and to attack U-boats.

On 29th, when a large merchant ship was reported to have left Bordeaux on a westerly course, the aim was altered to attack all enemy ships. Nothing, however, was seen.

If Bomber Command had failed to damage Scharnhorst, Gneisenau and Prinz Eugen, then the submarines would clearly have to stay on guard. If not, then the demands of training, both pro and anti-submarine, must be listened to. The risk of losing these elderly submarines with inexperienced crews must also be weighed and the wear and tear on them taken into consideration. At the time, opinion was that the three enemy ships had suffered further damage and that the prospect of a sortie had been put back. By the end of the year, therefore, it was decided to withdraw all the submarine patrols and resume training. We now know that the enemy ships were, in fact, undamaged.

DURING THE SECOND HALF OF 1941, therefore, there was an urgent need for submarines in Home waters to watch for sorties by the heavy German ships and the other important purposes already noted. At least three times as many operational boats could have been usefully employed than were actually available. The reason for the shortage was, of course, the Admiralty's adherence to the policy that the Mediterranean had priority. At this point, however, it is expedient to review the total strength of the British and Allied submarine fleets and to comment on their size for the duty they were required to perform.

Of the fifty-seven boats that comprised the British submarine fleet at the beginning of the war in September 1939, twenty-seven, or roughly half, had been lost by the end of 1941. Of the survivors, seven were refitting, twelve were used for training and only eleven of the pre-war boats were still employed in operations. During the same period, another thirty-nine boats had been completed by the building yards, twelve of which were already under construction in September 1939 and the rest had been ordered since. Of these, another nine had already been lost, two were refitting and twenty-eight were available for operations. There was a third category and that included one captured from the Germans and the addition of twenty eight other submarines from countries over-run by Germany in Europe. These consisted of nine Netherlands, eight French, two Polish, one Norwegian, five Greek and one Yugoslav. Five of these had been lost on operations under British operational control; nine were refitting, five were used for training; five had had to be relegated to reserve as unfit for use altogether, leaving only six for operations. The U-boat captured was U570, renamed Graph6 in British service and now being refitted to carry out first-of-class trials, and later to be used for operations. Two were American, P551 (ex S25) and P511 (ex R3) acquired under lease lend from the United States Navy. The rest remained under their national flags but were operated, paid for and maintained by the Royal Navy. It was not expected that this group would yield any more operational submarines. Difficulties in obtaining spare parts, torpedoes and ether equipment were considerable, and it was clearly going to be more economical to turn over some of our new construction to Netherlands, French, Greek, Polish and Norwegian crews. Already Urchin, renamed Sokol, and P551 renamed Jastrzab, were manned by the Polish Navy, and P41 renamed Uredd by the Norwegian Navy.

By the end of 1941 there were no less than ninety-two submarines in various stages of construction. These ranged from Trooper and Traveller nearing completion to others only just laid down. Thirty were due to complete within a year. The T-class, the 1940 S-class and the U-class were ordered in roughly equal numbers but the five new minelayers ordered earlier in the year were cancelled. The four peacetime submarine building yards at Vickers of Barrow, Cammell Lairds of Birkenhead and Scotts of Greenock with Chatham Dockyard were all in full production. In addition, Vickers had started building submarines at their yard on the Tyne, and both Portsmouth and Devonport Dockyards had accepted some orders. Since before the war, Vickers had been building four submarines or their own design for Turkey and the last two, which were nearly completed, were taken over for the Royal Navy as P614 and P6157. It had been hoped that some submarines might also be built in the USA for the Royal Navy under Lend Lease. America, however, had no spare capacity at this time and was only prepared to turn over some of its older submarines, but after the first two they were reluctant, with their entry into the war, to turn over any more. Nevertheless negotiations continued into 1942. Since March 1941, however, the Americans were prepared to refit our submarines, and several had already taken advantage of this facility, which greatly eased the pressure on our own repair yards.

The number of British and Allied operational submarines at the end of 1941 was therefore forty-three. Of these twenty-nine were in the Mediterranean, twelve were in Home waters and two had just left for the Far East8. In Home waters the number of submarines available was quite insufficient if the German main units were to be watched for constantly on both the Norwegian coast and in the Bay of Biscay. More boats still were required for anti U-boat patrols and in North Russia. In the Far East the Japanese had attacked and we had no submarines operational on the station at all. It was only in the Mediterranean, to which we had given priority, that numbers in any way matched the task. A case could be made therefore for a submarine fleet of double the size that we had at the end of 1941. To achieve this, resources in shipbuilding and manpower would have had to be taken from some other arm such as convoy escorts, destroyers, heavy ships, landing craft or merchant shipping and all of these could make similar claims for expansion. The number of submarines we possessed at this time were probably a fair share of the country's resources, and it is unlikely that any great expansion of the fleet could have been achieved without unacceptable cuts elsewhere and without an overall fall in efficiency.

Apart from the minor campaign in North Russia by Tigris and Trident, followed by Sealion and Seawolf, submarines in Home waters during the second half of 1941, were able to make only comparatively few attacks on the enemy. In all forty-two torpedoes were fired by British submarines and less than a dozen by Polish and French boats. Rorqual and Rubis laid a total of eighty-two mines. Altogether eleven torpedo attacks were executed, seven of which were on U-boats and the other four on merchant ships. The results were meagre; the Italian U-boat Bianchi was sunk and a 4000-ton French ship damaged. Two small vessels were sunk by the mines. Most of the attacks on U-boats were at long range or in bad weather. The period was, however, one in which we only lost two submarines in Home waters and the enemy destroyed neither of these. U-boat torpedoes however, narrowly missed two submarines.

Decorations awarded for this period were a Distinguished Service Order for Commander Sladen of Trident and a Bar to the DSC for Commander Bone of Tigris for their exploits working from North Russia during the autumn of 1941. Lieutenant de Vaisseau Rousselot of Rubis also received a Bar to his DSC for his minelaying operations and for bringing his damaged submarine home safely. The sinking of the Italian submarine Bianchi by Lieutenant Commander Campbell of Severn was not recognised by any award as his attack was not thought to have been successful at the time. Sadly he had been killed in action in general service by the time the sinking was confirmed.

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