Loss of HM S/M Tempest, 13 Feb 1942

Loss of HM S/M Tempest, 13 Feb 1942

Background

In early 1942, the only means of naval offensive left to Malta were the submarines of the 10th Submarine Flotilla. Most of these were U-class boats, but some were P- and T-class, such as HM S/M Tempest.

The flotilla suffered a steady drip of losses to anti-submarine warfare (ASW), and mines. Starting in late 1941, German Sonar sets (S-Gerät) appeared on Italian escort vessels, and made them a far more deadly enemy.

Torpediniere Circe Marina Militare

Torpedo Boat Circe, after 1941. Marina Militare Photo Archive.

Tempest in the Mediterranean

Tempest was a large boat at 1,327 tons, and thus not considered for joining 10th Flotilla. Instead she was assigned to 1st Flotilla in Alexandria, whence she was supposed to travel at the end of the patrol in the Gulf of Taranto. This was her second combat patrol, not counting the transfer from the UK to Gibraltar. It appears that she carried spare parts for the flotilla in Alexandria on her mission as well.

Her Captain, Lt. Cdr. Cavaye, was an Australian career Royal Navy officer, unlike many other submariners at the time, and well experienced in submarines. 

Sinking of Tempest

HM S/M Tempest had the misfortune of encountering Capitano di Corvetta (Lt.Cdr.) Stefanino Palmas and his torpedo boat Circe on 13 February 1942. Palmas had been to the Kriegsmarine ASW course, and had received further training in Italy. On this mission, Circe was accompanying the German merchant Bosforo on her way to Taranto, and had also been ordered to patrol a specific area, where the day before HM S/M Una had illegally sunk the Italian tanker Lucania, which was traveling under safe passage from the Royal Navy to refuel a repatriation ship with civilians from East Africa. Two experienced commanders were thus set up against each other.

Both vessels noted each other about the same time, and Lt.Cdr. Cavaye made the fatal mistake of opting for a surface attack, probably trusting the night as protection. He would almost certainly not have been aware of the presence of advanced German anti-submarine equipment, including a German operator section, on Italian navy vessels. Cavaye ordered a crash dive when Tempest was about to be rammed, and received a first set of German depth charges while dropping down into the depths. Circe continued to patrol, and commenced attacking with daylight returning. She never lost contact with the submarine, and following a 6.5 hour hunt starting with the attack at 03.22am, using his last depth charges, Palmas finally managed to damage Tempest sufficiently to force her to surface, only 1,000m of Circe, where her crew abandoned ship. Some Royal Navy sailors appeared to be moving towards the boat’s gun were engaged with light AA guns from Circe, and nine rounds of the 10cm main gun.

As this account makes clear however, Tempest was almost mortally wounded by the first attack, and she was lucky not to succumb to it, unlike HM S/M P.38 ten days later. The final attack had led to flooding and chlorine gas building up, making it impossible to remain in the stricken submarine. At a water depth of 1,600 m at the site of the engagement, there was also no possibility for the boat to escape downwards and wait out matters on the sea floor or close to it.

Following this success, Palmas spent time trying to rescue as many of the men as possible, rather than trying to take the submarine under tow, although a small boarding command was sent over, including some German sailors who took code tables and other materials. After a short while, and a failed attempt to tow her to Crotone harbour 30 nm away, she slipped under the waves. 23 survivors out of the crew of 62 were then delivered to the Italian mainland. Many of the remainder were either killed by Circe’s gunfire or the very cold winter Mediterranean.

Palmas notes that the recovered Royal Navy sailors comported themselves very well, and remained calm throughout. He supplied them with food, hot drinks, and clothes. Palmas’ German crew members were not impressed by his actions, but it doesn’t appear there was anything to fault him.

The attack was covered in the Italian War Bulletin No. 631, and Lt.Cdr. Palmas received the Silver Medal for Military Valour.

 

 

Tempest

HM /SM Tempest on the surface during the attempt to take her in tow. Marina Militare Photo Archive.

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Success Report from Italy to German Navy High Command. Rommelsriposte.com Collection

 

Further Reading

Survivor of HM S/M Tempest

German ASW Equipment Pt. 1

German ASW Equipment Pt. 2

German ASW Equipment Pt. 3

Sinking of HM S/M P.38

Difesa.it on the sinking of Tempest

Book review – Italian Torpedo Boat against British Submarine

Oral history of Charles G. N. Anscomb who survived the sinking.

Service history of HM S/M Tempest

Lt.Cdr. Cavaye

In Memoriam Cdr. Jeremy Nash, DSC, RN

In Memoriam Cdr. Jeremy Nash, DSC, RN

Background

Commander Jeremy Nash DSC, RN, died on 23 November 2018, aged 98. During Operation CRUSADER he was weapons officer on HMS/M Proteus, a Parthian-class submarine, assigned to the 1st Submarine Flotilla in Alexandria.

The Royal Navy during the Second World War A12506

HMSM Proteus underway in the Mediterranean, unknown date (Courtesy IWM)

Collision with R.N. Sagittario

After the end of CRUSADER, HMS/M Proteus, under command of Lt.Cdr. Francis, had an encounter with a Regia Marina escort vessel, the Spica class corvette RN Sagittario, which led to her being rammed and damaged. The commander of Sagittario presumed her to be sunk. Fortunately enough for Proteus, for some reason Sagittario did not follow up on the ramming with a depth charge attack. She was equipped both with the German ASDIC echolocation system, the S-Geraet (see this link) and also with the more effective German depth charge launch system, which would be used to devastating effect two weeks later by RN Circe in the sinking of HMS/M P.38 (see this link).

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Torpediniera Sagittario, 1941 (Courtesy Wikipedia)

Sagittario had a small detachment of German sailors on board, led by a senior NCO (Oberbootsmaat – Royal Navy Petty Officer), who reported to the German command about the incident. The report is below – it also notes that the Italian crew members operating the S-Geraet were trained at the Kriegsmarine school in Gotenhafen, and did good work.

Report about the Sinking of an enemy Submarine by T-Boat Sagittario on 8 February 1942 0450 hours north of Cephalonia.

(as related by Oberbootsmaat Merkel)

Following the release of a convoy Sagittario was on the march from Patras to Argostoli. Sea state 3-4. Speed 14 knots. Ranges were registered at around 1,600m (good echos) up to 2300 hours, when sea state was 1. At 0430 hours the S-Geraet reported a strong noise signal at 320 degrees, which moved out fast. Whether the boat immediately turned was not transmitted to the listening room, but in any case shortly after the report speed was increased to 17 knots. A few minutes later the collision occurred. The enemy submarine was rammed at an acute angle, and went down with a heavy list.

Both vessels suffered damage, HMS/M Proteus to her dive plane, which broke off, and Sagittario to her hull. Interestingly, Lt.Cdr. Francis considered his target a submarine, and attacked with torpedoes, which were not observed at all on Sagittario. In turn, Francis believed that the torpedoes were what gave Proteus away, and did not consider ASDIC detection.

HMS/M Proteus was standing out in two regards, she was the first Royal Navy submarine to be equipped with Radar, and the only Parthian-class submarine to survive the war. Proteus’ 1st Officer met the CO of Sagittario after the war, abusing him of the notion that he had sunk Proteus that night.

An account by Nash himself of the ramming can be found in this book. Lt.Cdr. Francis, DSO and Bar, RN recounts the incident at this link. Commodore Nash retired from the Royal Navy in 1970.

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Commander Nash, DSC, OBE, RN during the war, (Courtesy, unknown)

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Lt R L Alexander RN, who now commands the Proteus and (right) Lt Cdr P S Francis, DSO, RN, her former commanding officer. (Courtesy IWM)

Mansplaining Submarines to the Regia Marina – German-Italian Cooperation September 1941

Mansplaining Submarines to the Regia Marina – German-Italian Cooperation September 1941

It doesn’t often happen that I come across a text in my files that makes me roll my eyes. But this is clearly one of them, as it shows some breath-taking, and probably subconscious arrogance by the Germans towards their Italian allies. I can only imagine the Italian ASW specialists fuming when reading the entry section. It was helpfully translated into Italian. The translation below is mine, and the German original is from the NARA files of the Chief of the Naval Liaison Staff at the Italian Navy High Command, the ranking German navy officer in the Mediterranean.

As outlined in older posts (here, here, and here), the German Kriegsmarine  and the Italian Royal Navy, the Regia Marina, had a close technological co-operation when it came to matters of mutual interest, such as preventing Royal Navy submarines from wreaking havoc on the supply lines to North Africa.

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The Commanding Officer, Lieut Cdr R D Cayley, DSO, RN, (centre) with his officers and men on board the UTMOST beneath their Jolly Roger success flag. (Courtesy IWM Photo Collection)

The document in question is a memorandum about the current state of anti-submarine warfare on the Axis and the Royal Navy side, with a reasonably amount of detail. It is part of an exchange of information that ultimately led to the installation of German active sonar (S-Geraet) and depth charge launchers on Italian vessels, to help protect supply convoys in the Adriatic, Aegean, and Central Mediterranean. Royal Navy submarines had become a clear part of the menace to the supply lines, together with airborne interdiction, primarily from Malta, and the occasional surface action, although by early September the last one was almost five months ago, when Force K intercepted and destroyed the Tarigo convoy off Kerkennah buoy in a night action on 16 April 1941 (see here for background).

To protect against air attack, the AA defense of the merchants was thickened with naval AA guns from the German Marinebordflakkompanie Sued, as outlined in this older post. It wasn’t perfect, but between this, and the AA defense by the escort units, attacking convoys became a more risky endeavor, with high loss rates for the Malta-based Blenheim day bombers, as outlined here. Other co-operation measures included the transfer of Kriegsmarine DeTe shipborne radar to be installed on Italian major units, the transfer of Italian aerial torpedoes in exchange for German 2-cm AA guns and ammunition from the Italian air force to the Luftwaffe.

By September, that left the submarine threat. It was clear that Italian technology was behind German in this regard, and because the Malta-based submarines threatened German and Italian supplies indiscriminately, something had to be done. So the Germans proceeded to explain the nature of the submarine to their allies, as below. The memo is quite long, and mostly very sensible. It covers location devices including passive and active sonar, radar, radio detection, and buoyed nets, as well as anti-submarine weapons such as depth charges (ship- and air-launched), submarine nets. It interestingly also covers some experimental or research-stage Kriegsmarine detection measures, such as a fotografic device to locate a submarine that is stationary on the bottom of the sea, an electromagnetic device that showed when a sub-hunter was in a circle of 70m on top of a sub, a magnet that would attach itself to a sub and transmit sounds from it to the sub-hunter, and mentions the Flettner helicopter, which was expected to come into ASW service in the next two years.

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Re: B.Nr. Skl.U III 3030/41 Gkdos. 

Berlin 3 September 1941

SECRET COMMAND AFFAIR

Overview of Current Status of Anti-Submarine Warfare of the Opponent and the Kriegsmarine

1. General

The specialty of the submarine is that it can make itself invisible, by day through diving, by night through its small silhouette. All means of submarine defense aim to negate this special characteristic of the submarine by using specialized means, and to locate the submarine despite its invisibility.

As soon as a submarine has been located it can be engaged, which is again made more difficult when the submarine is submerged because it can evade in three dimensions. Engagement of a surfaced and located submarine by night at first is attempted by gaining visual perception through the use of search lights. If this succeeds, the submarine is forced to dive, and the engagement of the submarine happens in the same form as it would against a submerged submarine during the day, just with the added use of search lights.

 

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German Sonar on Italian Vessels – Pt. 3

German Sonar on Italian Vessels – Pt. 3

In the third and, for the moment, final part of this mini series on the use of German S-Gerät sonar on Italian vessels, here is a list of the vessels which had it installed, or were scheduled for installation, as of 28 February 1942. The list excludes Antonio da Mosto, which had been sunk by that date (see this link and this link and this link).

The list is fairly self-explanatory. I am using the Italian abbreviations, so ‘Ct’ stands for Cacciatorpediniere – Destroyer, and ‘Tp’ for Torpediniere, Escort Destroyer or Torpedo Boat. The destroyers listed are an interesting mix, and five were going to be assigned to the Italian fleet following the installation of the S-Geraet. They included the older Navigatori class, of the late 1920s, and the most modern fleet destroyers of the Soldati class.

The Torpediniere are also a bit of a mix, primarily Spica class, but with two older vessels included, the San Martino and the Calatafimi, both of which dated back to WW I destroyer designs and had only recently been downgraded to Torpediniere status. Unlike the destroyers, most of the Torpediniere were going to be assigned to specific stations, Sicily (4), Libya (3), Greece (2), Rhodes (2), Naples (1), and the escort group (1).

A number of destroyers and Torpediniere have no destination allocated to them.

In the table, ‘DC’ stands for depth charge. For Italian depth charges installed, where it reads ‘0 16/50 12/100’, this means ‘no depth charge launcher, 16x50kg depth charges and 12x 100kg depth charges’. For background on the Italian depth charges, please see this link. I am not certain the information in the report is fully correct, but it is given as is.

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Destroyers Usodimare and da Noli in port, late 1930s. The picture shows well the range finder, rounded bridge house, and the twin-turret with its 4.75” (12cm) guns. Courtesy Wikipedia.

 

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The obsolete destroyer San Martino entering a port. Courtesy Wikipedia

Apart from the naval vessels, some auxiliaries were also equipped with the S-Geraet, for harbour defense in La Spezia and Taranto, and two motor sailing vessels (Motoveliere) for serving with the submarine defense school at La Spezia, to train new personnel. The only vessel where the future port of service isn’t given is the Cyprus.

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Sinking of HM Submarine P.38 – 23 February 1942

Sinking of HM Submarine P.38 – 23 February 1942

Background

This is only indirectly related to Operation CRUSADER, but of interest nevertheless because it shows the increasing sophistication of Italian escort vessels which happened around the time of the end of the operation, and which probably contributed somewhat to 1942 becoming the worst year for losses in the Mediterranean, with a total of 13 of HM Subs lost, compared to 9 in 1940 (admittedly in just over six months), and 11 each in 1941 and 1942. I have added information on the Italian convoy on 28 May, based on the entry in the Seekrieg website.

HM/Sub P.38

P.38, under the command of Lieutenant R.J. Hemingway RN DSC, was sunk by Tp Circe (Tp = Torpediniere – torpedo boat, a class of light escort destroyers), which sank or participated in the sinking of four Royal Navy submarines, HM S/M Grampus on 16 June 1940, HM S/M Tempest and P.38 in February 1942, and HM S/M Union in July 1942. Circe herself was lost on 27 November 1942 in a collision with auxiliary cruiser Citta di Tunisi. Lt. Hemingway was probably awarded his DSC on 20 December 1940 for  what was believed to be a successful action against an Axis submarine (either U-58, or Italian submarines Veniero or Otario) in the Bay of Biscay, while serving on HM S/M Tigris under Lt.Cdr. Bone, DSO, DSC. In reality however Tigris did not sink the target, whichever of the three it was. His previous command was HM S/M H.31, which was lost with all hands on 19 December 1941 in the North Sea.

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HM/Sub P.38 underway. Wikipedia.

Attack Operations

P.38 was sunk while trying to attack one of the big convoys of early 1942, in this case the third major operation of the year, convoy K.7. It consisted of two separate convoys of six merchants each from Messina and Corfu. The convoys were the fast motor vessels Unione, Monginevro, Ravello (all in convoy 1), and Monviso, Lerici, and Giulio Giordani (convoy 2). They were escorted by destroyers in direct escort (Ugolino Vivaldi, Lanzerotto Malocello, Nicolo Zeno, (all Navigatori-class), Premuda (captured Yugoslav Dubrovnik), Strale (Freccia-class), – convoy 1; Antonio Pigafetta (F), Emanuele Pessagno, Antonio Usodimare, (all Navigatori-class) , Maestrale, Scirocco (both Maestrale-class) – convoy 2) and also by two squadrons of heavy escorts, those of the  old battleship Duilio with the Soldati-class destroyers Aviere, Ascari, Geniere, Camicia Nera, and the heavy cruisers Gorizia and Trento, the light cruiser Giovanni della Bande Nere, and the destroyers Alpino (Soldati), Antonio Da Noli (Navigatori), and Alfredo Oriani (Oriani/Poeti-class).

Convoy 1 was escorted by the Spica-class torpedo boat Pallade, and convoy 2 by Spica-class torpedo boat Circe. Commander of the close escort of convoy 2 was the Captain of the destroyer Antonio Pigafetta.  It appears that only Circe and Pallade were equipped with the German S-Gerät sonar and German depth charge throwers (and maybe also depth-charge rails, since references to depth charges used on Circe use two German separate designations).

 

Torpediniere Circe Marina Militare

Spica-class Torpedo Boat Circe with dazzle camouflage, which she carried by May 1942. USMM

Lt. Commander Palmas’ Report

Here’s the report of her captain, Capitano di Corvette (Lt.Cdr.) Palmas, which is held in the captured German records section in NARA. It can be found in the files of the German Naval Attache in Rome.

GKDOS 1706/42

28 March 1941 (sic!)

SECRET COMMAND AFFAIR!

REPORT ABOUT THE SINKING OF AN ENEMY SUBMARINE BY TORPEDO BOAT “CIRCE” ON 23.2.42 – ACCORDING TO STATEMENT BY COMMANDER K.KPT.PALMAS

CIRCE escorted a convoy of 3 steamers on the way to Tripolis. Calm sea. Light swell. Speed 14 knots.

Northwest of Cape Misurate an echo was reported at 1014 [hours] in 46 degrees, 1,800 metres. Bearing wanders out quickly. Signal to convoy to turn to port.

Boat [CIRCE] turns into the bearing, increases speed to 18 – 20 knots and moves across the target. At around 1,000m the periscope is sighted at the position of the echo. With 16 knots moved onto it and dropped six depth charges from rails and four from throwers into the location of the dive which was indicated by air bubbles. Depth setting 70 metres. Shortly after the submarine surfaces with heavy list to stern, it had apparently used pressurised air [emergency surfacing]. Other boats [escorts] and planes open fire and throw depth charges, in some cases in front of other boats. One Italian rating is killed by friendly machine-gun fire. This makes an orderly attack by CIRCE impossible. After the other boats have been called off, CIRCE again receives an echo from the by now again submerged submarine. This resurfaces shortly after like a dolphin with running screws and drops 45 degrees listing to prow into the depth. A lot of oil and air bubbles come up, which only slowly reduce. Apart from that parts of the interior fittings (polished cupboard door, table top), one bag with flags and body parts (lung) drift up.

Boat remains 1.5 hours on the scene of the attack. Echo shows the same location until the last. Water depth 350m. The echo is probably caused by the continuing rising of oil and the still escaping air.

In his formal report to Supermarina, the Italian admiralty, he also analysed the performance of the attack. Below is the section on lessons learnt.

  1. March during lively sea during the night 22 to 23 February has taxed the ship’s hull very much, especially while marching direction 180 degrees.
    Three cracks occured at the movement gap [Dehnungsfuge], which is situated in the centre of the boat, between machinery centre and the ventilators of boiler room 2.
  2. In contrast to the attack on 13 February [on HM S/M Tempest, which was sunk], this attack on a submarine was carried out almost with lightning speed, with the intent to prevent the submarine, which was already lying ready to attack, from carrying this out and to then hunt and destroy it.
    The second task, far more important by comparison to the first, was achieved almost immediately. The convoy could, because of my signals, turn away 90 degrees to port, and thereby move away from the danger zone. The second task was then resolved shortly after, by the almost immediate dropping of all depth charges, which were set at 75 metres depth [sic!] from the rails and throwers.
    The explosion has certainly hit the submarine which was in rapid dive. It was so strong that the enemy commander could do nothing else but surface immediately and give pressurised air on all the tanks.
    The second and last attempt by the submarine to surface failed, and it dived forever.
  3. The attach was carried out based on the information received from the S-Geraet, the prior sighting of the periscope, and the air bubbles which remained on the surface when the submarine dived rapidly. These visible signs led me to drop all depth charges at once, even though by this I partially violated existing regulations. 11 depth charges were dropped. I found it not useful to undertake further depth charge drops during the later phases of the search since the proof I had seen and collected left not the slightest doubt about the result of the attack. The parts of the interior fittings of the submarine and the human remains prove beyond any doubt the destruction of the submarine. During the two unsuccessful attempts to surface the tower was closed and nobody came out. The small bag with flags was probably inside the tower under the hatch, inside the pressure vessel.
  4. The behaviour of the crew was again commendable. The rapidity of the attack has excited the crew beyond belief.
  5. The explosion of a depth charge packet is extremely strong. The hull of the torpedo boat has vibrated noticeably, but not too much, because I carried out the attack at a speed of 15 knots.

It is clear from this account that P.38 and her crew never stood a chance. The Italian commander made all the right decisions (and risky ones – emptying his depth charge racks could have landed him in trouble if P.38 had survived the first attack), he had advanced detection systems that allowed him to find the enemy (and I wonder if 10th Flotilla on Malta was aware of this – does anyone know?), and his relentless initial attack doomed the submarine.All 32 hands on her were lost. May they Rest in Peace. You can read a bit of background on one of her crew, 22-year old Clarence Durnell, at this link. Before rejoining the convoy escort, Circe made a final gesture to the fallen, according to the report of her commander:

Before I finally move off, I cross the site of the sinking at slow speed and and offer the fallen honourable recognition with the whole crew on combat stations.

The convoy arrived in Tripoli without any losses, and brought much needed reinforcements for the Axis forces in North Africa, allowing them to build up strength for the Gazala battles in May 1942, the conquest of Tobruk, and the advance to El Alamein.

Many thanks for Dili from the Comando Supremo forum for his comments and corrections.