Allied Warships

HMS Ultimatum (P 34)

Submarine of the U class

NavyThe Royal Navy
TypeSubmarine
ClassU 
PennantP 34 
Built byVickers Armstrong (Barrow-in-Furness, U.K.) 
Ordered11 Mar 1940 
Laid down19 Jun 1940 
Launched11 Feb 1941 
Commissioned29 Jul 1941 
End service 
History

Sold to be broken up for scrap on 23 December 1949. Scrapped at Port Glasgow in February 1950.

 

Commands listed for HMS Ultimatum (P 34)

Please note that we're still working on this section.

CommanderFromTo
1Lt. Peter Robert Helfrich Harrison, DSC, RN12 Jun 194112 Nov 1942
2Lt. Desmond Samuel Royce Martin, RN12 Nov 19423 Dec 1942
3Lt. Roger Cresswell Bucknall, RN3 Dec 194227 Jan 1943
4Lt. William Hedley Kett, RNR27 Jan 194327 Dec 1944
5Lt. Charles Henry Hammer, RN27 Dec 19445 Feb 1945
6Lt. Peter Dove Courtenay Bennett, RN5 Feb 194511 Jun 1945
7Lt. Alan Flockhart Esson, RNR11 Jun 194528 Jun 1945
8Lt. John Oldham Coote, RN28 Jun 19454 Sep 1945
9Lt. Roger Cresswell Bucknall, RN4 Sep 1945early 1946

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Notable events involving Ultimatum include:


The page for this submarine is currently (October 2014 and onwards) being updated.

28 Jul 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed from her builders yard at Barrow for Holy Loch. She made the passage together with HMS Trusty (Lt.Cdr. W.D.A. King, DSO, DSC, RN). They were escorted by HMS Breda (Capt.(retired) A. E. Johnston, RN). (1)

29 Jul 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) arrived at Holy Loch to begin a period of trials and training. (1)

24 Aug 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Holy Loch for Barrow. She was sent back to her builders yard to make good several defects before she was to be sent to the Mediterranean.

During the passage to Barrow P 34 was escorted by HMS La Capricieuse (Lt.Cdr. G.W. Dobson, RNR).

25 Aug 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) arrived at Barrow.

16 Sep 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Barrow for Gibraltar. She was to proceed to Malta to join the 10th submarine flotilla based there.

During the passage south through the Irish Sea P 34 was escorted by HMS La Capricieuse (Lt.Cdr. G.W. Dobson, RNR) until Bishops Rock.

21 Sep 1941
While en-route to Gibraltar HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) is ordered by signal to conduct a short patrol off Cape Finisterre, Spain.

This made the passage to Gibraltar P 34's 1st war patrol.

26 Sep 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 1st war patrol when she arrived at Gibraltar.

1 Oct 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Gibraltar for passage to Malta. (2)

8 Oct 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) arrived at Malta. (2)

17 Oct 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Malta for her 2nd war patrol (1st in the Mediterranean). She was ordered to intercept an enemy convoy between Kuriat and Pantelleria (patrol report is missing).

28 Oct 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 2nd war patrol (1st in the Mediterranean) at Malta.

6 Nov 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Malta for her 3rd war patrol (2nd in the Mediterranean). She was ordered to patrol in the Ionian Sea to operate against enemy convoys to Benghazi. (2)

20 Nov 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 3rd war patrol (2nd in the Mediterranean) at Malta. The patrol had been uneventful. (2)

28 Nov 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Malta for her 4th war patrol (3rd in the Mediterranean). She was ordered to patrol south of the Straits of Messina. (2)

5 Dec 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) attacked an Italian convoy made up of the merchants Vertunno (3159 GRT, built 1905) and Tigrai (1302 GRT, built 1918). They were escorted by the torpedo-boat Giuseppe Sirtori.

(All times are zone -1)
1250 hours - Sighted masts and funnel of a ship with smoke of another ship astern. Closed to investigate.

1255 hours - Commenced attack on the leading merchant vessel. A ship of about 4000 tons. Went to 70 feet and closed at full speed.

1310 hours - Came to periscope depth. Sighted two submarines but these could not be attacked. Had P 34 not gone deep an attack would have been possible. Continued the attack on the leading merchant vessel. It was now also seen that the merchant vessels were escorted by an older type torpedo-boat.

1328 hours - In position 37°48'N, 16°05'E fired three torpedoes from 5000 yards.

1331 hours - Heard one explosion.

1335 hours - Heard two more explosions.

1337 hours - A counter attack commenced. A total of 31 depth charges was dropped. P 34 was hunted all afternoon. (2)

8 Dec 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 4th war patrol (3rd in the Mediterranean) at Malta. (2)

12 Dec 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Malta for her 5th war patrol (4th in the Mediterranean). She was ordered to patrol in the Ionian Sea in a patrol line with HMS Upholder (Lt.Cdr. M.D. Wanklyn, DSO, RN), HMS P 31 (Lt. J.B.de B. Kershaw, RN) and ORP Sokol (Lt.Cdr. B. Karnicki, ORP). (2)

14 Dec 1941
At 2345 hours HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) received a signal that the anticipated enemy movements did not occur and that the patrol line was dispersed.

P 34 was ordered to return to Malta after having patrolled off Augusta, Sicily on the 16th. (2)

17 Dec 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 5th war patrol (4th in the Mediterranean) at Malta. The patrol had been uneventful. (2)

29 Dec 1941
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Malta for her 6th war patrol (5th in the Mediterranean). She was ordered to patrol well to the south of the Straits of Messina. (2)

4 Jan 1942
In the evening HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) was ordered to proceed to the Gulf of Taranto to form a patrol line together with other submarines. (2)

10 Jan 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 6th war patrol (5th in the Mediterranean) at Malta. (2)

20 Jan 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Malta for her 7th war patrol (6th in the Mediterranean). She was ordered to patrol to the South of the Straits of Messina. (3)

25 Jan 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) torpedoed and sank the Italian passenger ship Dalmatia L. (3352 GRT, built 1903) south-west of Capo dell'Armi in position 37°45'N, 15°30'E. Dalmatia L. was escorted by the torpedo boat Giuseppe Sirtori.

(All times are zone -1)
1305 hours - Sighted the upperworks of a merchant vessel and one other ship bearing 350°, range was about 10000 yards. Started attack and closed at high speed.

1326 hours - The target was a heavily laden merchant ship of about 7000 tons escorted by an older type torpedo boat.

1339 hours - Fired four torpedoes from 5000 yards.

1343 hours - Heard a torpedo explosion. H.E. of the target ceased.

1346 hours - A counter attack commenced. 9 Depth charges were dropped in the next 10 minutes. Only one was close.

1354 hours - Returned to periscope depth. The merchant vessel was seen to be stopped with a slight list to post. The torpedo-boat remained near the merchant vessel dropping a further 16 depth charges at irregular intervals until 1600 hours. (3)

1 Feb 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 7th war patrol (6th in the Mediterranean) at Malta. (3)

14 Feb 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Malta for her 8th war patrol (7th in the Mediterranean). She was ordered to patrol off Kerkenah. (3)

16 Feb 1942
In the evening HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) was ordered to form a patrol line to the East of Tripoli together with 7 other submarines. (3)

23 Feb 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) fires four torpedoes against an Italian convoy about 80 nautical miles east of Tripoli, Libya in position 32°51'N, 13°58'E. All torpedoes fired missed their targets.

The convoy attacked was made up of the Italian merchants Ravello (6142 GRT, built 1941), Unione (6070 GRT, built 1942 and brand new) and Monginevro (5324 GRT, built 1940). Escort was provided by the destroyers Ugolino Vivaldi, Lanzerotto Malocello, Nicolo Zeno, Strale and Premuda, and the torpedo-boat Pallade.

(All times are zone -1)
1125 hours - Sighted two merchant vessels and three destroyers bearing 040°. Enemy course was 250°. Started attack.

1130 hours - The convoy appeared to consist of three modern merchant ships of 9000 tons in line ahead. Seven destroyers were seen to be the escort. They were of various types.

1149 hours - Fired a salvo of four torpedoes from 4500 yards.

1157 hours - Heard three explosions.

1158 hours - A counter attack commenced. A total of 57 depth charges were dropped some quite near. P 34 managed to escape.

1420 hours - Both hunting destroyers were now out of sight.

28 Feb 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 8th war patrol (7th in the Mediterranean) at Malta. (3)

11 Mar 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Malta for her 9th war patrol (8th in the Mediterranean). She was ordered to patrol off the Calabrian coast. (3)

14 Mar 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) torpedoed and sank the Italian submarine Ammiraglio Millo (offsite link) in the Ionian Sea off Punta (Cape) Stilo, Calabria, Italy in position 38°27'N, 16°37'E.

(All times are zone -1)
1255 hours - Sighted the conning tower of a submarine bearing 270°. Range was about 8000 yards. Started attack.

1319 hours - Fired four torpedoes from 2200 yards. Two hits were obtained and the submarine was seen to sink.

1325 hours - Surfaced and picked up 14 survivors. These included 4 officers and 10 ratings.

1402 hours - Dived and withdrew from the area. In the evening Lt. Harrison decided to return to Malta to land the Italian survivors.

16 Mar 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) arrived at Malta to land the Italian survivors and to load four new spare torpedoes and provisions. (3)

17 Mar 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Malta to resume her patrol. She was now ordered to patrol to the south of the Straits of Messina.

27 Mar 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 9th war patrol (8th in the Mediterranean) at Malta. (3)

6 Apr 1942
HMS P 34 (Lt. J.W.D. Coombe, RN) departed Malta for her 10th war patrol (9th in the Mediterranean). She was ordered to patrol near Capo Santa Maria di Leuca to operate against traffic from Taranto to the Adriatic.

Lt. Coombe had taken command vice Lt. Harrison for this patrol in order to give Lt. Harrison a rest. (3)

7 Apr 1942
HMS P 34 (Lt. J.W.D. Coombe, RN) is ordered to proceed to position 37°00'N, 16°14'E to intercept a southbound enemy merchant vessel. (3)

8 Apr 1942
HMS P 34 (Lt. J.W.D. Coombe, RN) is ordered to proceed to her original patrol area. (3)

12 Apr 1942
At 0924 hours (zone -1) HMS P 34 (Lt. J.W.D. Coombe, RN) was shaken by a violent explosion while in position 39°45'N, 18°29'5"E. The submarine was blown to the surface. The fore hatch lifted and admitted a quantity of water. All lights in the after part of the ship were extinguished. Three depth gauges in the control room were put out of action and considerable other damage was done. P 34 had a lucky escape after hitting a mine.

P 34 altered course to get clear of the coast to make good defects and to establish if she could remain on patrol. In the afternoon most damage had been repaired and it was decided to remain on patrol. P 34 had meanwhile received a signal to take up a patrol position in the Ionian Sea. (3)

13 Apr 1942
As it was likely that enemy 'heavy units' might be met Lt. Coombe decided that the depth settings of the torpedoes were to be altered. It was then found out that due to the explosion of the previous day the torpedoes could not be retracted from the tubes nor that they could be fired. The defects could not be repaired at sea so Lt. Coombe had no other choice than to abandon the patrol and HMS P 34 set course back to Malta. (3)

16 Apr 1942
HMS P 34 (Lt. J.W.D. Coombe, RN) ended her 10th war patrol (9th in the Mediterranean) at Malta. (3)

29 Apr 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Malta for Alexandria. Due to heavy enemy air attacks it had been decided to retire the small number of submarines currently based at Malta to Alexandria. (4)

8 May 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) arrived at Alexandria. (4)

11 May 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Alexandria for Port Said.

12 May 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) arrived at Port Said for a docking and repairs. The dates of docking are unknown to us (for the moment).

31 May 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Port Said for Alexandria.

1 Jun 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) arrived at Alexandria. (5)

6 Jun 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Alexandria for her 11th war patrol (10th in the Mediterranean). She was ordered to give cover during convoy operations to Malta with HMS Una (Lt. C.P. Norman, RN), HMS P 31 (Lt. J.B.de B. Kershaw, RN) and HMS P 35 (Lt. S.L.C. Maydon, RN) (cover of Operation VIGOROUS). (4)

15 Jun 1942
At 0615 hours (zone -3) HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) spotted the Italian battlefleet. An air attack was in progress and the ships were manouvering all over the place. P 34 was unable to obtain a favourable firing position.

At 1012 hours, while approaching a damaged Trento-class cruiser this ship was seen to sink as a result of torpedo hits by HMS P 35 (Lt. S.L.C. Maydon, RN). P 35 had gone deep to evade but Lt. Harrison sat front row and was able to confirm that the cruiser had sunk. (4)

24 Jun 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) makes a torpedo attack on German U-boat U-77 south of Crete in position 34°20'N, 24°09'E. All torpedoes fired however missed their target.

It was however thought that the target had been sunk but this was not the case.

(All times are zone -3)
0735 hours - Heard HE bearing 045°.

0740 hours - Sighted a German u-boat bearing 060° at long range. Enemy course was 140°, speed 10 knots by Asdic. Started attack.

0800 hours - In position 34°20'N, 24°09'E fired four torpedoes from 7000 yards.

0807 hours - Heard a loud explosion. HE of the target stopped immediately. Nearly two minutes later a second loud explosion was heard. This was thought to be a internal explosion on board the u-boat. It is thought the u-boat had been hit and sunk. (4)

27 Jun 1942
At 1500 hours (zone -3), in approximate position 32°31'N, 28°32'E, HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) sighted a German u-boat at a range of 9000 yards. P 34 closed submerged at high speed but the u-boat dived before a favourable attack position could be obtained. (4)

28 Jun 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 11th war patrol (10th in the Mediterranean) at Alexandria. (4)

29 Jun 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Alexandria for Haifa. (5)

3 Jul 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) arrived at Haifa. (6)

17 Jul 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Haifa for her 12th war patrol (11th in the Mediterranean). She was ordered to patrol to the West of Crete and afterwards to proceed to Malta. (4)

31 Jul 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 12th war patrol (11th in the Mediterranean) at Malta. (4)

11 Aug 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Malta for her 13th war patrol (12th in the Mediterranean). She was to provide cover during 'Operation Pedestal'. (7)

13 Aug 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) is ordered to patrol near Pantellaria. (7)

23 Aug 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 13th war patrol (12th in the Mediterranean) at Malta. (7)

2 Sep 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Malta for her 14th war patrol (13th in the Mediterranean). She was ordered to patrol off the West coast of Greece. (7)

7 Sep 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) fires four torpedoes against an enemy convoy in the central Mediterranean about 45 nautical miles south-west of Schiza Island, Greece in position 36°17'N, 21°03'E. All torpedoes fired missed their target.

(All times are zone -2)
0823 hours - Sighted patrolling aircraft to the North-West. The convoy we were warned about must be approaching.

0835 hours - Sighted masts and funnels of the approaching convoy bearing 305°.

0840 hours - Started attack on the convoy which was soon seen to be made up of three large merchant ships in line ahead. Many destroyers formed the escort. Several aircraft were also overhead. The leading merchant vessel was an older type of about 6000 tons, the other two were modern ones of 9000 tons.

0921 hours - In position 36°17'N, 21°03'E fired four torpedoes at the rear ship from 7000 yards. Seventeen seconds after firing the first torpedo there was a very heavy explosion just ahead of P 34. The first torpedo must have prematured after running off its safety range.

0927 hours - Heard a torpedo exploding giving a running range of 8000 yards corresponding with the range on firing of 7000 yards.

0936 hours - A counter attack commenced by three destroyers using hydrophones. Several patterns of depth charges were dropped rather close but to shallow. P 34 was at 120 feet at the time.

1030 hours - An Asdic fitted destroyer took over the hunt from the other three.

1056 hours - The destroyer passed overhead and dropped a pattern of four depth charges very close causing some damage.

1226 hours - After hearing no HE and no Asdic transmissions for a while started to return to periscope depth.

1236 hours - Head Asdic transmissions on the starboard beam.

1238 hours - At periscope depth. Saw a destroyer at a range of 2500 yards on our starboard beam. Went deep again. The destroyer was in Asdic contact.

1258 hours - The destroyer passed overhead and dropped a pattern of 5 depth charges which were again very close causing some more damage. This was followed by another pattern a bit further off about one minute later. P 34 remained deep for the remainder of the afternoon.

1700 hours - Returned to periscope depth. Nothing in sight. During the counter attack a total of 83 depth charges had been counted.

1715 hours - Went ahead on the port shaft. This resulted in clouds of black smoke which soon filled the submarine. A fire had started, as a result of damage from the depth charging, when starting up the motor so the port motor was placed out of action.

1744 hours - Surfaced for 5 minutes to clear the boat of the smoke.

2124 hours - Surfaced and set course to return to Malta as a result of the damage inflicted by the depth charging.

The convoy attack was made up of the Italian transports Ravello (6142 GRT, built 1941), Sestiere (7992 GRT, built 1942) and the German transport Ankara (4768 GRT, built 1937). They were escorted by the Italian armed merchant cruiser Brioni (1987 GRT, built 1931) as well as 9 destroyers and 4 torpedo boats. (7)

13 Sep 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 14th war patrol (13th in the Mediterranean) at Malta. (7)

25 Sep 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Malta for her 15th war patrol (14th in the Mediterranean). She was to proceed to Gibraltar as she was to return to the U.K. to refit. En-route she was ordered to patrol of the south-west coast of Sardinia. (7)

9 Oct 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) ended her 15th war patrol (14th in the Mediterranean) at Gibraltar. (7)

18 Oct 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) departed Gibraltar for the U.K. (7)

29 Oct 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) spent the entire day near Bishops Rock waiting to establish contact with her escort, HMS Egilsay (T/Lt. W.E. Belgrave, RNVR). Visibility was very bad. Finally at 1751 hours contact was made. Both ships were to proceed to Falmouth but as they was unable to enter that port it was decided to proceed directly to Portsmouth.

30 Oct 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) arrived at Portsmouth. (7)

31 Oct 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) was docked at Portsmouth. (8)

2 Nov 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) was undocked. (9)

16 Nov 1942
P 34 (Lt. D.S.R. Martin, RN) departed Portsmouth for Plymouth where she was to refit at the Devonport Dockyard. (9)

17 Nov 1942
P 34 (Lt. D.S.R. Martin, RN) arrived at Plymouth. As she could not be accepted for refit immediately she first participated for several day in special trials. (9)

18 Mar 1943
With her refit at the Devonport Dockyard completed HMS Ultimatum (Lt. W.H. Kett, RNR) conducted trials off Portsmouth. (10)

19 Mar 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) conducted exercises off Plymouth. (10)

22 Mar 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) conducted exercises off Plymouth. (10)

28 Mar 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) conducted exercises off Plymouth. (10)

1 Apr 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) departed Plymouth for Holy Loch. She was to rendez-vous with HMS La Capricieuse (Lt.Cdr. G.W. Dobson, RNR) off the Scilly Islands for onward passage north through the Irish Sea.

3 Apr 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) arrived at Holy Loch for a period of training.

En-route from Plymouth she had suffered from engine defects.

30 Apr 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) departed Holy Loch for Scapa Flow. Passage north through the Minches was made together with HMS Truculent (Lt.Cdr. R.L. Alexander, RN), HNoMS Ula (Lt. R.M. Sars) and HrMs O 10 (Lt.Cdr. Baron D.T. Mackay, RNN). They were escorted by HMS Dornoch (Lt. H.E. Jackson, RN).

2 May 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) arrived at Scapa Flow to participate in A/S and attack exercises. (11)

3 May 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) conducted attack exercises off Scapa Flow. Practice attacks were made on HMS Malaya and HMS Suffolk (Capt. R. Shelley, CBE, RN). (11)

4 May 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) conducted attack exercises off Scapa Flow. (11)

5 May 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) conducted A/S exercises off Scapa Flow with HMS Onslow (Capt. J.A. McCoy, DSO, RN) and HMS Tyrian (Cdr. C.W. Greening, RN). (11)

6 May 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) conducted attack exercises off Scapa Flow. (11)

8 May 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) conducted A/S exercises off Scapa Flow with HMS Tumult (Lt.Cdr. N. Lanyon, RN), HMS Tyrian (Cdr. C.W. Greening, RN), HMS Brecon (Lt.Cdr. T.D. Herrick, DSC and Bar, RN) and HMS Brissenden (Lt. D.C. Beatty, RN). (11)

12 May 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) conducted A/S exercises off Scapa Flow with HMS Tumult (Lt.Cdr. N. Lanyon, RN), ORP Slazak (Lt.Cdr. R. Nalecz-Tyminski, ORP), HMS Charlestown (Lt. W.F.B. Webb, DSC, RN) and HMS Chiddingfold (Lt. T.M. Dorrien-Smith, RN). (11)

13 May 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) conducted A/S exercises off Scapa Flow with HMS Eclipse (Lt.Cdr. E. Mack, DSO, DSC, RN), HMS Cleveland (Lt. J.K. Hamilton, RN), HMS Onslow (Capt. J.A. McCoy, DSO, RN) and HMS Tyrian (Cdr. C.W. Greening, RN). (11)

15 May 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) departed Scapa Flow for Lerwick. At sea she joined HMS Tuna (Lt. D.S.R. Martin, RN) and HMS Seadog (Lt. C.R. Pelly, RN) and escort HMS Bryony (T/Lt. T. Hand, RNR). (11)

16 May 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) arrived at Lerwick. (11)

18 May 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) conducted A/S exercises off Lerwick with aircraft. (11)

21 May 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) departed Lerwick for her 15th war patrol. She was ordered to patrol in the Norwegian Sea for an anti-uboat patrol. (7)

3 Jun 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) ended her 15th war patrol at Lerwick. (7)

4 Jun 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) departed Lerwick for Holy Loch. She made the passage together with HMS Tuna (Lt. D.S.R. Martin, RN) and HMS Stubborn (Lt. A.A. Duff, RN). They were escorted by HMS Cutty Sark (Cdr.(retired) R.H. Mack, RN).

The next moring they were joined by HMS Syrtis (Lt M.H. Jupp, DSC, RN). (12)

6 Jun 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) arrived at Holy Loch. (12)

14 Jun 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) departed Holy Loch for Scapa Flow. She made the passage together with HMS Truant (Lt.Cdr. J.G. Hopkins, RN). They were escorted by HMS Breda (Capt.(retired) A. E. Johnston, RN). (12)

16 Jun 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) arrived at Scapa Flow. (12)

19 Jun 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) departed Scapa Flow for Blyth. At sea she joined HMS Satyr (Lt. T.S. Weston, RN) and her escort HMS Loch Monteith (T/Lt. K.W. Richardson, RNR) that were en-route to Dundee. (12)

20 Jun 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) arrived at Blyth. (12)

21 Jun 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) shifted from Blyth to Wallsend where she was to undergo repairs at the Swan Hunter shipyard. (12)

26 Jun 1943
HMS Ultimatum (Lt. W.H. Kett, RNR) was docked at Wallsend. (12)

15 Jul 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) was undocked. (13)

5 Aug 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) shifted from Wallsend to Blyth. (14)

6 Aug 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Blyth. (14)

7 Aug 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Blyth. (14)

9 Aug 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Blyth. (14)

11 Aug 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR), HMS Una (Lt. W.G. Meeke, DSC, RN) and HMS Uther (Lt. P.S. Beale, RN) departed Blyth for Holy Loch. They were escorted by HMS ML 300 (T/Lt. F.C.R. Piesse, RNVR) until Dundee where HMS Loch Monteith (T/Lt. K.W. Richardson, RNR) took over the escort. (14)

14 Aug 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) arrived at Holy Loch. (14)

20 Aug 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Holy Loch for her 16th war patrol. She was to patrol in the Bay of Biscay (A/S patrol) and to proceed to Gibraltar upon completion of this patrol.

Passage south through the Irish Sea was made together with HMS Truant (Lt.Cdr. J.G. Hopkins, RN), FFL Curie (Lt. P.M. Sonneville) and FFL Minerve (Lt. H.F.D. Simon-Dubuisson). They were escorted by HMS Kingston Amber (T/Lt. Richard Adams, RNR). (7)

9 Sep 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) ended her 16th war patrol at Gibraltar. The patrol had been uneventful. (7)

16 Sep 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises with the harbour defences of Gibraltar. (15)

18 Sep 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Gibraltar for her 17th war patrol (14th in the Mediterranean). She was ordered to patrol in the Gulf of Lions. (7)

30 Sep 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) attacked a German convoy of self propelled barges. Two torpedoes were fired but no hits were obtained.

(All times are zone -1)
1224 hours - Sighted a vessel bearing 340°, close to the land. Altered course towards.

1230 hours - Next look revealed that target consisted of 4 large self propelled supply barges escorted by seven armed patrol vessels. Continued to close.

1247 hours - In position 43°02'N, 05°44'E started firing a salvo of four torpedoes from very close range. After two torpedoes had been fired a violent explosion shook Ultimatum. One of the torpedoes must have hit. Depth control was lost and Ultimatum started to descend. The remaining two torpedoes of the salvo were not fired.

1250 hours - Ultimatum came to rest on the bottom at 160 feet. Both motors were stopped, all machinery was stopped and the ship was shut off for depth charging. Many listening charges were dropped by the enemy for the next 7 hours but no depth charges were dropped during this period.

2000 hours - A depth charge was dropped but it was not very close.

2230 hours - Started blowing main ballast.

2245 hours - Ultimatum came of the bottom.

2300 hours - Obtained a good trim at 90 feet. Cleared the area not surfacing until 0120 hours the next day.

Actually no hit was obtained, possibly the torpedo prematured. (7)

4 Oct 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) ended her 17th war patrol (14th in the Mediterranean) at Algiers. (7)

12 Oct 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) was docked at Algiers. (16)

15 Oct 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) was undocked. (16)

19 Oct 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Algiers for her 18th war patrol (15th in the Mediterranean). She was ordered to patrol off Southern France. (7)

27 Oct 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) attacked a German convoy made up of the The German merchant Nicoline Maersk (4194 GRT, built 1925), the French passenger ship Canosa (3823 GRT, built 1936) and the German tanker Arpino (584 GRT, built 1935). They were escorted by the German patrol vessels SG 15, UJ 2210, UJ 2211 and the German motor minesweepers R 10, R 14, R 15. No hits were obtained.

(All times are zone -1)
1110 hours - Heard A/S impulses ahead but sighted nothing.

1120 hours - Heard HE ahead. Several barrage balloons were sighted. Closed at speed.

1144 hours - Sighted a convoy of four or five ships. Range was about 8 nautical miles. They were making for Toulon.

1154 hours - Two merchant vessels escorted by two trawlers were seen to have left the convoy which was then entering Toulon Bay. The Merchants and trawlers proceeded to the westward, apparently towards Marseilles. Ran in to attack on of these two merchant ships.

1219 hours - In approximate position 42°58'N, 05°56'E fired four torpedoes at the second merchant ship from 7000 yards. Went deep on firing.

1225 hours - Heard a torpedo explosion.

1228 hours - Heard the other three torpedoes explode against the land.

1229 hours - Heard the A/S trawlers hunting.

1240 hours - Returned to periscope depth. Sighted only the two trawlers and the first merchant vessel of the line. Assumed the other ship to have sunk. Retired to seaward to reload. (7)

30 Oct 1943
On this day HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) attacked a German U-boat the Mediterranean southeast of Toulon, France, in position 43°04'N, 05°57'E. This attack was against U-73 but it inflicted no damage. HMS Ultimatum is often credited to have sunk U-431 in this attack. However U-431 was sunk with all hands on 21 October 1943 in the Mediterranean off Algiers in position 37°23'N, 00°35'E, by depth charges from a British Wellington aircraft (Sqdn. 179/Z). U-431's fate was revised in November 1987 by the Foreign Documents Section of the British Ministry of Defence.

(All times are zone -1)
0707 hours - Sighted a 500 tons u-boat bound for Toulon. Closed to attack.

0716 hours - Fired three torpedoes from 7000 yards. A fourth torpedo could not be fired as one of the torpedo tube was defective.

0721 hours - One torpedo eplosion thought to be a hit on the target giving a range of 6600 yards. The u-boats HE ceased and could not be seen when the periscope was raised it is thought the submarine was sunk.

0723 hours - Retired from the scene at 80 feet. (7)

2 Nov 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) ended her 18th war patrol (15th in the Mediterranean) at Algiers. (7)

3 Nov 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Algiers for passage to Malta. She made the passage in convoy KMS-30 together with HMS Ultor (Lt. G.E. Hunt, DSC, RN). (7)

6 Nov 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) arrived at Malta to join the 10th submarine flotilla. (7)

21 Nov 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Malta together with HMS Ultor (Lt. G.E. Hunt, DSC, RN). (17)

24 Nov 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) was docked at Malta for repairs to her main motors. (17)

4 Dec 1943
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) was undocked. (17)

4 Jan 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) completed repairs at Malta. (18)

6 Jan 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Malta. (18)

8 Jan 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Malta for Beirut where she was to join the 1st submarine flotilla. (7)

14 Jan 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) arrived at Beirut. (7)

18 Jan 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted noise trials of Beirut. (18)

24 Jan 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Beirut for Port Said where she was to be docked for a propeller change. (18)

25 Jan 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) arrived at Port Said where she was immediately docked. (18)

26 Jan 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) was undocked. She then departed Port Said for her 19th war patrol (16th in the Mediterranean). She was ordered to patrol in south-east Aegean. (7)

6 Feb 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) ended her 19th war patrol (16th in the Mediterranean) at Beirut. (7)

20 Feb 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Beirut for her 20th war patrol (17th in the Mediterranean) at Beirut. She was ordered to patrol in the northern Aegean. (7)

10 Mar 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) ended her 20th war patrol (17th in the Mediterranean) at Malta. (7)

25 Mar 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Malta for her 21th war patrol (18th in the Mediterranean). She was ordered to patrol in the South-West Aegean. (7)

5 Apr 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) sank the Greek sailing vessel (in German service) Agios Georgios / PI 2659 with gunfire off Suda Bay, Crete, Greece.

(All times are zone -2)
0555 hours - Sighted the mast of a caique bearing 040°. Range was 7 nautical miles. Altered course to intercept.

0642 hours - Surfaced in position 35°34'N 24°20'E and opened fire with the 3" gun from 2000 yards. Fired 15 rounds for 10 hits. The target was seen to break up and catch fire aft. The crew of 6 abandoned ship and pulled away in a small boat.

0645 hours - Dived. (7)

6 Apr 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) sank the Greek sailing vessel (in German service) Agios Nikolaos / PI 2326 with gunfire off Anti-Kithera, Greece.

(All times are zone -1)
0630 hours - Sighted a caique bearing 290°. Range was 6 nautical miles. Closed for gun action.

0651 hours - Surfaced in position 35°53'N, 23°20'E and opened fire with the 3" gun from 1000 yards. Fired 11 rounds for 7 hits. the crew of 3 abandoned ship in their small boat. The caique soon sank.

0655 hours - Dived. (7)

12 Apr 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) ended her 21th war patrol (18th in the Mediterranean) at Malta. (7)

18 Apr 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Malta. (19)

26 Apr 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Malta for her 22th war patrol (19th in the Mediterranean). She was ordered to patrol in the South-West Aegean. (7)

1 May 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) sank the small Greek sailing vessel Elevtheria / MYT 687 with gunfire off Cape Matapan, Greece.

(All times are zone -2)
2141 hours - Sighted a dark object. Closed.

2201 hours - In position 36°21'N, 22°35'E opened fire on a caique.

2223 hours - Took 3 surivors on board. The caique sank. Set course towards Levadia Point. (7)

2 May 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) shells the harbour of Koroni, Greece. Two sailing vessels were claimed sunk, five were claimed destroyed on the slips and one was claimed to be damaged.

(All times are zone -2)
1919 hours - Surfaced 1400 yards from the breakwater to bombard Koroni harbour where several caiques had been sighted as well as three shipyards that were building caiques.

1937 hours - Completed the bombardment. 62 Rounds had been fired. Dived and retired seawards.

The next morning the harbour was examined for the results of the bombardment. 2 Caiques were seen to have sunk, 5 were destroyed on the slipways and one was seen to be holed and damaged. (7)

10 May 1944
In the early moring hours HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) is detected by two German A/S vessels near Suda Bay. She is depth charged by them sustaining some damage. After several hours she managed to escape.

(All times are zone -2)
0355 hours - Sighted two ships.

0402 hours - Dived to carry out an attack.

0408 hours - The two ships were seen to be UJ boats (auxiliary submarine chasers) zig zagging on a main course of 130 degrees. Approached at slow speed keeping end on. The vessels were sweeping on Asdics.

0418 hours - Both vessels altered towards and appeared to gain contact. Lights were seen flashing aft on both vessels. Went deep and shut off for depth charging.

0421 hours - A pettern of five depth charges was dropped close as Ultimatum reached 100 feet causing some damage. Went to 200 feet.

0512 hours - After succesfully avoiding several attempted attacks a second pattern was dropped causing some more damage.

0530 hours - Several bursts of high speed became necessary to assist in depth keeping. Ultimatum was becoming heavy despite constant pumping. Despite large alterations of course both vessels remained in contact but they did not drop depth charges unless they were very certain of their attack.

0640 hours - A pattern of five depth charges fell close causing a fire in the motor room besides causing more damage. Increased speed and checked the descent at 400 feet. Returned to 270 feet and restored trim.

0720 hours - A pattern of four depth charges was dropped. Some minor electrical damage was sustained. Both vessels were now, for the first time on the port side and by constant altering of course kept them there.

0740 hours - The vessels appeared to have lost contact. A third vessel was now also heard transmitting on Asdics. They all failed to regain contact and Ultimatum withdrew to the north-east.

0840 hours - Returned to periscope depth. Nothing in sight. (7)

13 May 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) ended her 22th war patrol (19th in the Mediterranean) at Malta. (7)

19 May 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) was docked at Malta. (20)

29 May 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) was undocked. (20)

9 Jun 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Malta for Bone, Algeria.

Passage was most likely made in a convoy but ono log of this period is available so we are not sure. Ultimatum arrived at Bone only on the 16th which seems quite a long time for this passage. (21)

16 Jun 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) arrived at Bone. (21)

18 Jun 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Bone for La Maddalena where she was to join the 10th submarine flotilla. (21)

20 Jun 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) arrived at La Maddalena. (21)

23 Jun 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed La Maddalena for her 23th war patrol (20th in the Mediterranean). She was ordered to patrol off Southern France. (7)

3 Jul 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) fires two torpedoes at the German auxiliary patrol vessel UJ 6073 / Nimeth Allah off Toulon, southern France. The torpedoes however miss their target.

(All times are zone -1)
0059 hours - Sighted a white light flashing morse bearing 340°.

0104 hours - Two darkened ships were made out steaming on a course of 200° distance 2000 yards. As the vessels were at close range and were signalling, Lt. Kett thought he might be sighted. He turned his submarine stern on to watch events unfold.

0109 hours - The vessels were identified as a destroyer and a UJ boat, and as they showed no sign of taking action against Ultimatum Lt. Kett altered course to attack.

0114 hours - Four torpedoes were fired. 40 seconds later one torpedo was seen to hit causing a column of water rise 50 feet into the air completely enveloping the target (this actually was not a hit, the torpedo exploded prematurely). Six seconds later a second torpedo was heard to explode but this was not observed as the submarine was now diving towards 150 feet. The target is thought to be destroyed.

UJ 6073 was on an A/S patrol together with UJ 6079. (7)

6 Jul 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) ended her 23th war patrol (20th in the Mediterranean) at La Maddalena. (7)

17 Jul 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed La Maddalena for her 24th war patrol (21th in the Mediterranean). She was ordered to patrol in the Gulf of Lions. (7)

27 Jul 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) fires four torpedoes against a group of small German vessels. The German barge F 811 is hit and sunk south of La Ciotat, France in position 43°03'N, 05°34'E.

(All times are zone -1)
0050 hours - Obtained a radar echo bearing 045°, range 6000 yards. Altered course towards.

0100 hours - The bearing was steady, range decreasing, went to action stations.

0117 hours - Turbine HE was picked up bearing 050°. Made out dark shapes against the land.

0130 hours - The contact was seen to be one escort vessel and four 'F-boats' on an estimated course of 280°, speed 6 knots.

0148 hours - Fired three torpedoes at an almost continuous target of 2 'F-boats'. Radar gave a range of 1500 yards.

0150 hours - One of the 'F-boats' was seen to explode with a bright yellow flash and a column of sparks and smoke. It was thought one of the other torpedoes hit the other 'F-boat' but this was not the case.

0151 hours - The escort was seen to turn towards.

0154 hours - An aircraft was seen to fly down the torpedo tracks. Dived and continued withdrawal submerged.

0155 hours - Heard breaking up noises.

0247 hours - All quiet. Surfaced. (7)

30 Jul 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) ended her 24th war patrol (21th in the Mediterranean) at La Maddalena. (7)

3 Aug 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed La Maddalena for Algiers. (22)

5 Aug 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) arrived at Algiers. (22)

6 Aug 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Algiers for Gibraltar. At sea she joined convoy MKS 57. (22)

8 Aug 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) arrived at Gibraltar. (22)

18 Aug 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Gibraltar for the U.K. She made the passage in convoy MKS 58 together with HMS Ultor (Lt. G.E. Hunt, DSC and Bar, RN). (7)

29 Aug 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) arrived at Rothesay.

It was not possible to take Ultimatum in hand for refit before the end of October. Later this was postponed until mid-December. (7)

1 Oct 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Rothesay for Plymouth. She made the passage together with HMS Tiptoe (Lt.Cdr. P.R.H. Harrison, DSO, DSC and Bar, RN) and HMS Unshaken (Lt. J.S. Pearce, RNR) (until Fishguard). They were escorted by HMS Kihna. (23)

3 Oct 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) arrived at Plymouth. (23)

4 Oct 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) and HMS Tiptoe (Lt.Cdr. P.R.H. Harrison, DSO, DSC and Bar, RN) shifted from Plymouth to Portland. They were escorted by HMS Cotillion (T/Lt. H.J. Howard, RNR). (23)

5 Oct 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) and HMS Tiptoe (Lt.Cdr. P.R.H. Harrison, DSO, DSC and Bar, RN) shifted from Portland to Portsmouth. They were escorted by HMS Cotillion (T/Lt. H.J. Howard, RNR). (23)

11 Oct 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Portsmouth. (23)

12 Oct 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Portsmouth. (23)

17 Oct 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Portsmouth. (23)

19 Oct 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Portsmouth. (23)

24 Oct 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Portsmouth. (23)

26 Oct 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Portsmouth. (23)

1 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Portsmouth. (24)

2 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Portsmouth. (24)

6 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted noise trials off Portsmouth. (24)

7 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Portsmouth. (24)

8 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) was docked at Portsmouth. (24)

9 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) was undocked. (24)

10 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Portsmouth. (24)

11 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted noise trials off Portsmouth. (24)

14 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Portsmouth. (24)

17 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Portsmouth. (24)

20 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Portsmouth for Fishguard. She was escorted by HMS Darthema (T/Lt. C. Brunning, RNVR). (24)

22 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) arrived at Fishguard. (24)

26 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Fishguard. (24)

27 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Fishguard. (24)

29 Nov 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted exercises off Fishguard. (24)

4 Dec 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted A/S exercises off Fishguard with HMS Fitzroy (A/Lt.Cdr. A.J. McCullogh Miller, DSC, RNVR). (25)

5 Dec 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) conducted A/S exercises off Fishguard with HMS Fitzroy (A/Lt.Cdr. A.J. McCullogh Miller, DSC, RNVR). (25)

7 Dec 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Fishguard for Portland. She was escorted by HMS Mignonette (Lt. H.H. Brown, DSC, RNR). (25)

8 Dec 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) arrived at Portland. (25)

11 Dec 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) shifted from Portland to Portsmouth. She was escorted by HMS Brontes (Skr. A.E. Wood, RNR). (25)

15 Dec 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) participated in special trials off Portsmouth. (25)

21 Dec 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) departed Portsmouth for Sheerness. (25)

22 Dec 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) arrived at Sheerness. (25)

23 Dec 1944
HMS Ultimatum (Lt. W.H. Kett, DSC, RNR) shifted from Sheerness to Tilbury where she was to refit. (25)

14 Apr 1945
With her refit completed HMS Ultimatum (Lt. P.D.C. Bennett, RN) shifted from Tilbury to Sheerness. (26)

16 Apr 1945
HMS Ultimatum (Lt. P.D.C. Bennett, RN) shifted to Chatham Dockyard to embark ammunition. (26)

17 Apr 1945
HMS Ultimatum (Lt. P.D.C. Bennett, RN) shifted from Chatham Dockyard to Sheerness. (26)

18 Apr 1945
HMS Ultimatum (Lt. P.D.C. Bennett, RN) conducted trials at Sheerness. (26)

19 Apr 1945
HMS Ultimatum (Lt. P.D.C. Bennett, RN) conducted trials at Sheerness. (26)

21 Apr 1945
HMS Ultimatum (Lt. P.D.C. Bennett, RN) shifted from Sheerness to Tilbury. (26)

25 Apr 1945
HMS Ultimatum (Lt. P.D.C. Bennett, RN) conducted engine trials off Tilbury. (26)

27 Apr 1945
HMS Ultimatum (Lt. P.D.C. Bennett, RN) shifted from Tilbury to Sheerness. (26)

29 Apr 1945
HMS Ultimatum (Lt. P.D.C. Bennett, RN) departed Sheerness for Dundee. She made the passage together with HMS Surf (Lt. H.W. Wilkinson, RN) departed Sheerness for Dundee. They were escorted by HMS Kingston Olivine (Lt. E.P. Evers, RANVR). (26)

1 May 1945
HMS Ultimatum (Lt. P.D.C. Bennett, RN) arrived at Dundee. HMS Ultimatum was assigned to training duties mainly based at Blyth. After the Japanese surrender she moved to the Scottish west coast and at the close of 1945 she was based in the Channel area. (21)

Sources

  1. ADM 173/16871
  2. ADM 199/1120
  3. ADM 199/1224
  4. ADM 199/1225
  5. ADM 173/17369
  6. ADM 173/17370
  7. ADM 199/1825
  8. ADM 173/17373
  9. ADM 173/17374
  10. ADM 173/18315
  11. ADM 173/18316
  12. ADM 173/18317
  13. ADM 173/18318
  14. ADM 173/18319
  15. ADM 173/18320
  16. ADM 199/1919
  17. ADM 173/18321
  18. ADM 173/19157
  19. ADM 173/19160
  20. ADM 173/19161
  21. ADM 199/2573
  22. ADM 173/19162
  23. ADM 173/19164
  24. ADM 173/19165
  25. ADM 173/19166
  26. ADM 173/20089

ADM numbers indicate documents at the British National Archives at Kew, London.


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