Allied Warships

HMS Sealion (N 72)

Submarine of the S class

NavyThe Royal Navy
TypeSubmarine
ClassS 
PennantN 72 
Built byCammell Laird Shipyard (Birkenhead, U.K.) 
Ordered23 Dec 1932 
Laid down16 May 1933 
Launched16 Mar 1934 
Commissioned21 Dec 1934 
End service 
History

Scuttled as Asdic target off Isle of Arran, Scotland on 3 March 1945.

 

Commands listed for HMS Sealion (N 72)

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

CommanderFromTo
1Lt.Cdr. Benjamin Bryant, RN3 Sep 193831 Jan 1940
2Lt.Cdr. Christopher Haynes Hutchinson, RN31 Jan 1940Feb 1940
3Cdr. George Walter Gillow Simpson, RNFeb 1940Feb 1940
4Lt.Cdr. Benjamin Bryant, RNFeb 194012 Oct 1941
5Lt. George Robson Colvin, RN12 Oct 1941Apr 1942
6Lt. David Stuart McNeile Verschoyle-Campbell, DSC, RNApr 1942Jul 1942
7Lt. Douglas Lambert, DSC, RNJul 194212 Jan 1943
8Lt. David Stuart McNeile Verschoyle-Campbell, DSC, RN12 Jan 194317 Mar 1943
9Lt. Norman Jack Coe, DSC, RNR17 Mar 194312 Jan 1944
10Lt. Charles Alexander Jacomb Nicoll, RN12 Jan 194417 Jan 1944
11Lt.Cdr. John Bertram de Betham Kershaw, DSO, RN17 Jan 1944Jan 44 ?
12Lt. Norman Jack Coe, DSC, RNRJan 44 ?2 Mar 1944
13Lt. Peter Edward Newstead, DSC, RN2 Mar 1944mid 1944
14Lt. Roger Martin Stafford, RNmid 194415 Nov 1944

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Notable events involving Sealion include:


The page for this submarine is currently (February 2015 and onwards) being updated.

1 Sep 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) conducted exercises off Malta.

7 Sep 1939
During 7 and 8 September 1939, HMS Sealion (Lt.Cdr. B. Bryant, RN), conducted exercises off Malta. These included night exercises.

16 Sep 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) conducted exercises off Malta together with HMS Otway (Cdr. H.R. Conway, RN).

18 Sep 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) conducted exercises off Malta together with HMS Porpoise (Cdr. G.W.G. Simpson, RN) and HMS Shark (Lt. P.N. Buckley, RN).

21 Sep 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) conducted exercises off Malta together with HMS Cachalot (Lt.Cdr. S.W.F. Bennetts, RN).

26 Sep 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) conducted exercises off Malta together with HMS Shark (Lt. P.N. Buckley, RN).

27 Sep 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) conducted exercises off Malta together with HMS Shark (Lt. P.N. Buckley, RN).

4 Oct 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) conducted exercises off Malta together with HMS Shark (Lt. P.N. Buckley, RN).

5 Oct 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) conducted A/S exercises off Malta together with HMS Afridi (Capt. G.H. Creswell, DSC, RN).

6 Oct 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) conducted exercises off Malta.

11 Oct 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) departed Malta for Gibraltar. Salmon was to proceed to the U.K.

15 Oct 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) arrived at Gibraltar.

16 Oct 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) departed Gibraltar for Portsmouth. She made the passage together with HMS Salmon (Lt.Cdr. E.O. Bickford, RN), HMS Shark (Lt. P.N. Buckley, RN) and HMS Snapper (Lt. W.D.A. King, RN).

22 Oct 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) arrived at Portsmouth.

28 Oct 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) departed Portsmouth for her 1st war patrol. She was ordered to patrol in the North Sea (Dogger Bank area).

6 Nov 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) fires 6 torpedoes against German U-boat U-21 off the Dogger Bank in position 55°10'N, 02°11'E. All torpedoes fired missed their target.

(All times are zone -1)
0931 hours - The officer of the watch (Lt. Meeke, RN) sighted a U-boat very close. Depth keeping was very difficult in the rough seas. Started attack.

0944 hours - Fired six torpedoes from a range of about 3000 yards.

0946 hours - Heard a torpedo explosion. Shortly afterwards sighted the conning tower of a U-boat ahead. Surfaced and manned the deck gun. It was however not possible to engage the enemy with the deck gun due to the heavy seas.

7 Nov 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) ended her 1st war patrol at Rosyth.

12 Nov 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) departed Rosyth for Sheerness. She made the passage together with HMS Shark (Lt. P.N. Buckley, RN), HMS Snapper (Lt. W.D.A. King, RN) and HMS Sunfish (Lt.Cdr. J.E. Slaughter, RN). They were escorted by HMS Flamingo (Cdr. J.H. Huntley, RN) until 0900/13 when HMS Boadicea (Lt.Cdr. G.B. Kingdon, RN) took over the escort.

14 Nov 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) arrived at Sheerness. She shifted to the Chatham Dockyard later the same day.

15 Nov 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) was docked at Chatham.

23 Nov 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) was undocked.

24 Nov 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) departed the Chatham Dockyard for Harwich.

25 Nov 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) arrived at Harwich.

12 Dec 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) departed Harwich for her 2nd war patrol. She was ordered to patrol in the North Sea.

27 Dec 1939
HMS Sealion (Lt.Cdr. B. Bryant, RN) ended her 2nd war patrol at Harwich.

8 Jan 1940
HMS Sealion (Lt.Cdr. B. Bryant, RN) departed Harwich for her 3rd war patrol. She was ordered to patrol in the North Sea.

22 Jan 1940
HMS Sealion (Lt.Cdr. B. Bryant, RN) ended her 3rd war patrol at Harwich.

8 Feb 1940
HMS Sealion (Cdr. G.W.G. Simpson, RN in command temporary as Lt.Cdr. B. Bryant, RN was sick) departed Harwich for her 4th war patrol. She was ordered to patrol in the North Sea to the north of Terschelling, the Netherlands.

18 Feb 1940
HMS Sealion (Cdr. G.W.G. Simpson, RN) ended her 4th war patrol at Harwich.

5 Mar 1940
HMS Sealion (Lt.Cdr. B. Bryant, RN) departed Harwich for her 5th war patrol. She was ordered to patrol in the North Sea near Texel, the Netherlands.

7 Mar 1940
HMS Sealion (Lt.Cdr. B. Bryant, RN) was ordered to patrol to the north of Terschelling, the Netherlands and even later she moved to patrol to the north-west of Heligoland.

12 Mar 1940
HMS Sealion (Lt.Cdr. B. Bryant, RN) was detected, hunted and depth charged by a German armed trawler about 25 nautical miles to the north-west of Heligoland. No damage was done to Sealion and she retired from the area.

0925 hours - Sighted a merchant vessel in the mist in position 54°25'N, 07°17'E. Started an attack. Two tubes were brought to the ready. During the attack it was seen that the target was a trawler. It was a large trawler with a gun mounted forward. Fire was witheld as it was thought she might be escorted 'bigger prey' but nothing else was sighted.

1030 hours - The trawler turned back so started another attack. This prooved to be very difficult as the target stopped and turned a lot. Another trawler was sighted in the mist from time to time.

1115 hours - Two loud explosions shuddered the boat.

1123 hours - The nearest trawler fired a red Very's light. It was thought that Sealion had been detected and Lt.Cdr. Bryant decided to retire from the area to the westward.

15 Mar 1940
HMS Sealion (Lt.Cdr. B. Bryant, RN) ended her 5th war patrol at Harwich.

1 Apr 1940
HMS Sealion (Lt.Cdr. B. Bryant, RN) departed Harwich for her 6th war patrol. She was ordered to patrol off southern Norway. Later she moved to the Kattegat.

11 Apr 1940
HMS Sealion (Lt.Cdr. B. Bryant, RN) torpedoed and sank the German merchant August Leonhard (2593 GRT, built 1922) in the Skagerrak in position 56°29'N, 11°43'E.

1600 hours - Sighted grey upperworks to the eastward. Turned and closed at high speed.

1615 hours - Identified the target as a merchant vessel. Continued to close at high speed.

1644 hours - Identified the target as German, started attack.

1648 hours - Fired two torpedoes from 2700 yards. The first torpedo hit the target abaft the funnel. The target settled quickly by the stern. Sealion then retired to the east.

16 Apr 1940
HMS Sealion (Lt.Cdr. B. Bryant, RN) was bombed by an aircraft in the central North Sea sustaining some minor damage.

1246 hours - In position 55°56'N, 03°23'E sighted an aircraft on the port quarter. The aircraft turned towards. Challenged.

1247 hours - Having received no reply, dived.

1248 hours - With 45 feet on the gauge 3 or 4 bombs exploded close causing some damage.

18 Apr 1940
HMS Sealion (Lt.Cdr. B. Bryant, RN) ended her 6th war patrol at Harwich.

28 Apr 1940
HMS Sealion (Lt.Cdr. B. Bryant, RN) departed Harwich for her 7th war patrol. She was ordered to patrol in the Skagerrak / Kattegat.

6 May 1940
HMS Sealion (Lt.Cdr. B. Bryant, DSC, RN) attacked the German transports Moltkefels (7862 GRT, built 1940) and Neidenfels (7838 GRT, built 1939) with 6 torpedoes about 19 nautical miles south-west of Vaderob in position 58°30'N, 10°30'E. The torpedoes missed their target. Both transports were in convoy and were escorted by ships from the 15th Minesweeper Flotilla, including M 1508 and M 1504.

1345 hours - Sighted a convoy of two large transports screened by 5 or 6 A/S vessels. The were passing to the westward on a course of 160°. Range was about 7000 yards. Started attack.

1400 hours - Fired six torpedoes from a range of about 6000 yards. No hits were obtained.

16 May 1940
HMS Sealion (Lt.Cdr. B. Bryant, DSC, RN) ended her 7th war patrol at Harwich.

26 May 1940
HMS Sealion (Lt.Cdr. B. Bryant, DSC, RN) departed Harwich for her 8th war patrol. She was ordered to patrol in the North Sea.

3 Jun 1940
HMS Sealion (Lt.Cdr. B. Bryant, DSC, RN) ended her 8th war patrol at Rosyth.

11 Jun 1940
HMS Sealion (Lt.Cdr. B. Bryant, DSC, RN) conducted exercises off Rosyth together with HMS Snapper (Lt. W.D.A. King, DSO, RN), HMS Salmon (Cdr. E.O. Bickford, DSO, RN) and HMS White Bear (Capt. R. Gill, RD, RNR).

12 Jun 1940
HMS Sealion (Lt.Cdr. B. Bryant, DSC, RN) was docked at Rosyth.

14 Jun 1940
HMS Sealion (Lt.Cdr. B. Bryant, DSC, RN) was undocked.

25 Jun 1940
HMS Sealion (Lt.Cdr. B. Bryant, DSC, RN) departed Rosyth for her 9th war patrol. She was ordered to patrol in the Skagerrak. Before proceeding on patrol two practice attacks were made on HMS Winchester (Lt.Cdr. S.E. Crewe-Read, RN).

1 Jul 1940
HMS Sealion (Lt.Cdr. B. Bryant, DSC, RN) departed her patrol area in the Skagerrak for a new patrol area off the south coast of Norway.

3 Jul 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) fires 6 torpedoes against a German convoy off the Boknafjord, Norway. None of the torpedoes found it's target and Sealion was heavily depth charged following this failed attack.

8 Jul 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) fires a torpedo at the beached wreck of the German merchant Palime (2863 GRT) off Obrestadt. The Palime was beached after hitting a mine on 5 June 1940 that was laid by HMS Narwhal.

11 Jul 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) ended her 9th war patrol at Rosyth.

27 Jul 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) departed Rosyth for her 10th war patrol. She was ordered to patrol off southern Norway.

29 Jul 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) attacks German U-boat U-62 with torpedoes (that miss) and then with gunfire south-west of Stavanger, Norway in position 58°21'N, 04°24'E.

4 Aug 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) torpedoed and sank the Norwegian merchant Toran (3318 GRT, offsite link) off Homborsund, Norway in position 58°17'N, 08°38'E.

6 Aug 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) fires four torpedoed against the German merchant Cl?re Hugo Stinnes (5295 GRT) off Kristiansand, Norway in position 57°51'N, 07°24'E. All torpedoed missed their target.

10 Aug 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) ended her 10th war patrol at Rosyth.

13 Aug 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) shifted from Rosyth to Newcastle where Sealion was to be refitted at the Swan Hunter shipyard.

14 Aug 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) was docked at Newcastle.

22 Oct 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) was undocked. She then continued her refit at Newcastle.

1 Nov 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) departed Newcastle for Rosyth. En-route trials were performed.

3 Nov 1940
With her post-refit trials completed, HMS Sealion (Cdr. B. Bryant, DSC, RN) arrived at Rosyth.

7 Nov 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) conducted exercises off Rosyth.

8 Nov 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) conducted exercises off Rosyth together with HMS White Bear (Cdr. (retired) C.C. Flemming, RN).

10 Nov 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) was docked at Rosyth.

11 Nov 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) was undocked.

13 Nov 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) shifted from Rosyth to Blyth.

21 Nov 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) departed Blyth for her 11th war patrol. She was ordered to patrol off Utvaer, Norway.

25 Nov 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN)

6 Dec 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) ended her 11th war patrol at Blyth.

20 Dec 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) conducted exercises off Blyth.

22 Dec 1940
HMS Sealion (Cdr. B. Bryant, DSC, RN) departed Blyth for her 12th war patrol. She was ordered to patrol between Stadtlanded and Fro Havet, Norway.

6 Jan 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) ended her 12th war patrol at Blyth.

26 Jan 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) conducted exercises off Blyth.

27 Jan 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) departed Blyth for her 13th war patrol. She was ordered to patrol off Stadtlanded, Norway.

1 Feb 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN)

5 Feb 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) sank the (German controlled) Norwegian Ryfylke (1151 GRT, offsite link) off Honningsv?g, Norway.

10 Feb 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) ended her 13th war patrol at Blyth.

1 Mar 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) departed Blyth for her 14th war patrol. She was ordered to patrol off Stadtlanded, Norway.

15 Mar 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) ended her 14th war patrol at Blyth.

17 Mar 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) was docked at Blyth.

23 Mar 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) was undocked. She departed Blyth for Harwich later the same day. She made the passage together with HMS Sunfish (Lt. G.R. Colvin, RN). Off Blyth they made rendez-vous with HMS Undaunted (Lt. J.L. Livesey, RN) and ORP Sokol (Lt.Cdr. B. Karnicki) coming from Dundee. Escort was provided by HMS Leda (Cdr. R.C.V. Ross, DSO, RN).

24 Mar 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) arrived at Harwich.

25 Mar 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) departed Harwich for Portsmouth. Again she made the passage with HMS Sunfish (Lt. G.R. Colvin, RN), HMS Undaunted (Lt. J.L. Livesey, RN) and ORP Sokol (Lt.Cdr. B. Karnicki). Escort was now provided by HMS Sheldrake (Cdr. (retired) E.H. Hopkinson, RN).

26 Mar 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) arrived at Portsmouth.

27 Mar 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) departed Portsmouth for her 15th war patrol. She was ordered to patrol in the Bay of Biscay.

14 Apr 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) ended her 15th war patrol at Portsmouth.

28 Apr 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) departed Portsmouth for her 16th war patrol. She was ordered to patrol in the Bay of Biscay. Before proceeding on patrol on the 30th two days of A/S exercises were to be run off Dartmouth together with trawlers and HMS Mackay (Lt.Cdr. E.C. Coats, RN).

14 May 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) ended her 16th war patrol at Portsmouth.

27 May 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) departed Portsmouth for her 17th war patrol. She was ordered to patrol in the Bay of Biscay.

30 May 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) fires 6 torpedoes against German U-boat U-74 in the Bay of Biscay about 45 nautical miles south-west of Belle-Ile Island, France in position 46°58'N, 04°12'W. All six torpedoes missed their target.

13 Jun 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) ended her 17th war patrol at Portsmouth.

27 Jun 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) departed Portsmouth for her 18th war patrol. She was ordered to patrol in the Bay of Biscay.

7 Jul 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) sank the French fishing vessels Gustav Eugene (120 GRT) and Gustav Jeanne (39 GRT) with gunfire off Ushant.

8 Jul 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) sank the French fishing vessel Christus Regnat (28 GRT) with gunfire off Ushant.

9 Jul 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) sank the French fishing vessel St Pierre d'Alcantara (329 GRT) with gunfire off Ushant.

13 Jul 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) ended her 18th war patrol at Portsmouth.

2 Aug 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) departed Portsmouth for her 19th war patrol. She was ordered to patrol in the Bay of Biscay. Before proceeding on patrol exercises were carried out off Dartmouth during 3-5 August 1941.

21 Aug 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) ended her 19th war patrol at Portsmouth.

22 Aug 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) was docked at Portsmouth.

8 Sep 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) was undocked.

12 Sep 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) departed Portsmouth for her 20th war patrol. She was ordered to patrol in the Bay of Biscay.

25 Sep 1941
HMS Sealion (Cdr. B. Bryant, DSC, RN) ended her 20th war patrol at Portsmouth

22 Oct 1941
HMS Sealion (Lt. G.R. Colvin, RN) departed Portsmouth for Scapa Flow.

24 Oct 1941
At 0720 hours, HMS Sealion (Lt. G.R. Colvin, RN), made rendez-vous with HMS White Bear (Cdr. (retired) C.C. Flemming, RN) to the south-west of the Lizard. They then proceeded north up the Irish Sea.

27 Oct 1941
HMS Sealion (Lt. G.R. Colvin, RN) arrived at Scapa Flow.

28 Oct 1941
HMS Sealion (Lt. G.R. Colvin, RN) departed Scapa Flow for Polyarnoe, Russia.

6 Nov 1941
HMS Sealion (Lt. G.R. Colvin, RN) arrived at Polyarnoe.

12 Nov 1941
HMS Sealion (Lt. G.R. Colvin, RN) departed Polyarnoe for her 21th war patrol. She was ordered to patrol off northern Norway.

18 Nov 1941
HMS Sealion (Lt. G.R. Colvin, RN) sank the Norwegian tanker Vesco (331 GRT, offsite link) off the Laksefjord, Norway in position 70°57'N, 26°50'E.

20 Nov 1941
HMS Sealion (Lt. G.R. Colvin, RN) ended her 21th war patrol at Polyarnoe.

5 Dec 1941
HMS Sealion (Lt. G.R. Colvin, RN) torpedoed and sank the Norwegian merchant Island (638 GRT, offsite link) north of Mehavn, Norway in position 71°07'N, 27°54'E.

21 Dec 1941
HMS Sealion (Lt. G.R. Colvin, RN) departed Polyarnoe for her 23th war patrol. She was ordered to act as a beacon submarine during Operation Anklet (offsite link).

27 Dec 1941
During 27-29 December 1941, HMS Sealion (Lt. G.R. Colvin, RN), remained in the area where she was to be in to particiate in Operation Anklet.

3 Jan 1942
At 0915 hours, HMS Sealion (Lt. G.R. Colvin, RN), made rendez-vous with HMS White Bear (Cdr. (retired) C.C. Flemming, RN). They then proceeded towards Holy Loch.

5 Jan 1942
HMS Sealion (Lt. G.R. Colvin, RN) ended her 23th war patrol at Holy Loch.

8 Jan 1942
HMS Sealion (Lt. G.R. Colvin, RN) departed Holy Loch for Portsmouth. During the passage south through the Irish Sea she was escorted by HMS La Capricieuse (Lt.Cdr. G.W. Dobson, RNR).

3 Feb 1942
HMS Sealion (Lt. G.R. Colvin, RN) departed Portsmouth for her 24th war patrol. She was ordered to patrol off Brest.

14 Feb 1942
HMS Sealion (Lt. G.R. Colvin, RN) ended her 24th war patrol at Portsmouth.

23 Feb 1942
HMS Sealion (Lt. G.R. Colvin, RN) departed Portsmouth for Holy Loch.

27 Feb 1942
HMS Sealion (Lt. G.R. Colvin, RN) arrived at Holy Loch.

4 Mar 1942
HMS Sealion (Lt. G.R. Colvin, RN) departed Holy Loch for Lerwick. She was escorted by HMS Antelope (Lt.Cdr. E.N. Sinclair, RN).

6 Mar 1942
HMS Sealion (Lt. G.R. Colvin, RN) arrived at Lerwick.

7 Mar 1942
HMS Sealion (Lt. G.R. Colvin, RN) departed Lerwick for her 25th war patrol. She was ordered to patrol off central Norway.

19 Mar 1942
HMS Sealion (Lt. G.R. Colvin, RN) ended her 25th war patrol at Lerwick. She returned from patrol with serious defects to her port main motor.

25 Mar 1942
HMS Sealion (Lt. G.R. Colvin, RN) departed Lerwick for Holy Loch.

27 Mar 1942
HMS Sealion (Lt. G.R. Colvin, RN) arrived at Holy Loch.

7 Apr 1942
HMS Sealion (Lt. G.R. Colvin, RN) departed Holy Loch for Blyth where she was to refit. She made the passage together with HMS Tuna (Lt. M.B. St. John, RN). They were escorted by HNoMS Draug.

9 Apr 1942
HMS Sealion (Lt. G.R. Colvin, RN) arrived at Blyth.

12 Apr 1942
HMS Sealion (Lt. G.R. Colvin, RN) was taken in hand for refit at Blyth.

4 Sep 1942
With her refit completed, HMS Sealion (Lt. D. Lambert, DSC, RN), ran engine trials off Blyth.

7 Sep 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) ran engine trials off Blyth.

8 Sep 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) conducted trials off Blyth.

9 Sep 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) conducted trials off Blyth.

11 Sep 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) conducted trials off Blyth.

13 Sep 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) conducted exercises off Blyth.

14 Sep 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) departed Blyth for Holy Loch. She made the passage together with HMS Tuna (Lt. R.P. Raikes, RN). They were escorted by HMS ML 300 (T/Lt. F.C.R. Piesse, RNVR) until 0725/15 when HMS Loch Monteith (T/Lt. K.W. Richardson, RNR) took over the escort.

16 Sep 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) arrived at Scapa Flow.

17 Sep 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) and HMS Tuna (Lt. R.P. Raikes, RN) departed Scapa Flow for Holy Loch. They were escorted by HMS White Bear (Cdr. (retired) C.C. Flemming, RN).

19 Sep 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) arrived at Holy Loch to begin a training period.

8 Oct 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) departed Holy Loch for her 26th war patrol. She was ordered to patrol in the Bay of Biscay. Passage south through the Irish Sea was made together with HMS Ursula (Lt. R.B. Lakin, DSC, RN), HMS Unique (Lt. R.E. Boddington, RN) and HMS Graph (Lt. P.B. Marriot, RN). They were escorted by HMS La Capricieuse (Lt.Cdr. G.W. Dobson, RNR).

26 Oct 1942
HMS Sealion (Lt. D. Lambert, DSC, RN)

27 Oct 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) ended her 26th war patrol at Falmouth. After fuelling she proceeded back to sea to rendez-vous with HMS HMS Graph (Lt. P.B. Marriot, RN) and their escort towards Holy Loch, HMS Cutty Sark (Cdr.(retired) R.H. Mack, RN).

29 Oct 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) arrived at Holy Loch.

15 Nov 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) departed Holy Loch for her 27th war patrol. She was ordered to patrol in the Bay of Biscay. Passage south through the Irish Sea was made together with HrMs Dolfijn (Lt.Cdr. H.M.L.F.E. van Oostrom Soede, RNN). They were escorted by HMS Scimitar (Lt.Cdr. C.G. Cuthbertson, DSC, RNR).

29 Nov 1942
The Italian blockade breaker Cortellazzo had departed Bordeaux bound for Japan on 29 November 1942. The next day the ship was spotted by a Sunderland flying boat. The British submarines HMS Graph (Lt. P.B. Marriot, RN), HMS Clyde (Lt. R.S. Brookes, DSC, RN), and HMS Sealion (Lt. D. Lambert, DSC, RN), were ordered to intercept but failed to do so.

3 Dec 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) ended her 27th war patrol at Falmouth.

6 Dec 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) departed Falmouth for Holy Loch. Passage north through the Irish Sea was made together with HrMs Dolfijn (Lt.Cdr. H.M.L.F.E. van Oostrom Soede, RNN). They were escorted by HMS White Bear (Cdr. (retired) C.C. Flemming, RN).

8 Dec 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) arrived at Holy Loch.

17 Dec 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) was docked at Kames Bay.

18 Dec 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) was undocked at Kames Bay. She then returned to Holy Loch.

21 Dec 1942
HMS Sealion (Lt. D. Lambert, DSC, RN), HMS Graph (Lt. P.B. Marriot, RN), HMS P 216 (Lt. D.S.R. Martin, RN), HMS P 312 (Lt.Cdr. R.M. Favell, RN) and the Dutch submarine HrMs O 14 (Lt.Cdr. H.A.W. Goossens, RNN) departed Holy Loch for Lerwick. They were escorted by the British ASW trawler HMS Lord Austin (T/Lt. E.L. Wathen, RNR).

23 Dec 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) returned to Holy Loch with damage to her starboard main ballast tanks.

29 Dec 1942
HMS Sealion (Lt. D. Lambert, DSC, RN) was now assigned to the 7th Submarine Flotilla for training duties.

15 Jan 1943
HMS Sealion (Lt. D.S.M. Verschoyle-Campbell, DSC, RN) shifted from Rothesay to Ardrossan for repairs.

26 Jan 1943
With her repairs completed HMS Sealion (Lt. D.S.M. Verschoyle-Campbell, DSC, RN) shifted from Ardrossan to Rothesay.

20 Mar 1943
HMS Sealion (Lt. N.J. Coe, DSC, RNR) was docked at Kames Bay.

23 Mar 1943
HMS Sealion (Lt. N.J. Coe, DSC, RNR) was undocked at Kames Bay. She then proceeded to Rothesay.

19 Aug 1943
HMS Sealion (Lt. N.J. Coe, DSC, RNR) was docked at Kames Bay.

23 Aug 1943
HMS Sealion (Lt. N.J. Coe, DSC, RNR) was undocked at Kames Bay. She then proceeded to Rothesay.

7 Oct 1943
While conducting A/S exercises in Inchmarnock water, HMS Sealion (Lt. N.J. Coe, DSC, RNR), is hit by HMS Skate (Lt. J.C. Rushbrooke, DSC, RN). The periscopes of HMS Sealion were damaged.

10 Oct 1943
HMS Sealion (Lt. N.J. Coe, DSC, RNR) departed Rothesay for Barrow where repairs were to be effected.

11 Oct 1943
HMS Sealion (Lt. N.J. Coe, DSC, RNR) arrived at Barrow.

16 Nov 1943
With the repairs to her periscope standards, the installation of new periscopes and some work on her battery completed, HMS Sealion (Lt. N.J. Coe, DSC, RNR), departed Barrow for Rothesay. She was escorted by HMS Northern Wave (T/Lt. J.P. Kilbee, RNR).

17 Nov 1943
HMS Sealion (Lt. N.J. Coe, DSC, RNR) arrived at Rothesay.


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