uboat.net

  Front page - Fighting the U-boats - Allied Warships

Follow us on Twitter
@uboatnet

Notable events involving O 15 include:

The history of HrMs O 15 as compiled on this page is extracted from the patrol reports and logbooks of this submarine found at the British archives at Kew, London and the Dutch archives at The Hague, Netherlands.

This page was last updated in February 2019.

The following photographs are taken by Charles James Sadler, RCNVR. First Class Stoker, Official number V-4963, serving in the Canadian destroyer HMCS Columbia. They show HrMs O-15 while serving as target ship at Halifax, Canada in 1941 or early 1942.

2 Oct 1939
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) and HrMs O 20 (Lt.Cdr. A.J. Bussemaker, RNN) departed Den Helder, Netherlands for the Dutch West Indies. They were escorted by the gunboat HrMs Van Kinsbergen (Cdr. J.L.K. Hoeke, RNN).

For the daily positions of HrMs O 15 during this passage see the map below.

(1)

14 Oct 1939
HrMs O 20 (Lt.Cdr. A.J. Bussemaker, RNN) and HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) and their escort HrMs Van Kinsbergen (Cdr. J.L.K. Hoeke, RNN) arrived at Ponta Delgada, Azores.

18 Oct 1939
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) and HrMs O 20 (Lt.Cdr. A.J. Bussemaker, RNN) and their escort HrMs Van Kinsbergen (Cdr. J.L.K. Hoeke, RNN) departed Ponta Delgada, Azores to continue their passage to the Dutch West Indies (Curacao). (1)

31 Oct 1939
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) and HrMs O 20 (Lt.Cdr. A.J. Bussemaker, RNN) and their escort HrMs Van Kinsbergen (Cdr. J.L.K. Hoeke, RNN) arrive at Willemstad, Curacao, Dutch West Indies. (1)

13 Nov 1939
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) was docked at Willemstad, Curacao, Dutch West Indies. (1)

14 Nov 1939
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) was undocked. (1)

19 Nov 1939
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) departed Willemstad, Curacao for Aruba. (1)

20 Nov 1939
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) arrived at Oranjestad, Aruba, Dutch West Indies. (1)

27 Nov 1939
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Oranjestad, Aruba, to Willemstad, Curacao. (1)

18 Dec 1939
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Willemstad, Curacao to Oranjestad, Aruba. (1)

2 Jan 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Oranjestad, Aruba, to Willemstad, Curacao. (1)

11 Jan 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Willemstad, Curacao to Oranjestad, Aruba. (2)

22 Jan 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Oranjestad, Aruba, to Willemstad, Curacao. (2)

5 Feb 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Willemstad, Curacao to Oranjestad, Aruba. (2)

19 Feb 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Oranjestad, Aruba, to Willemstad, Curacao. (2)

28 Feb 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) was docked at Willemstad, Curacao, Dutch West Indies. (2)

2 Mar 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) was undocked. (2)

4 Mar 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Willemstad, Curacao to Oranjestad, Aruba. (2)

18 Mar 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Oranjestad, Aruba, to Willemstad, Curacao. (2)

8 Apr 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Willemstad, Curacao to Oranjestad, Aruba. (2)

18 Apr 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Oranjestad, Aruba, to Willemstad, Curacao. (3)

1 May 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Willemstad, Curacao to Oranjestad, Aruba. (3)

6 May 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Oranjestad, Aruba, to Willemstad, Curacao. (3)

10 May 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Willemstad, Curacao to Oranjestad, Aruba. (3)

12 May 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Oranjestad, Aruba, to Kralendijk, Bonaire. (3)

15 May 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) shifted from Kralendijk, Bonaire to Willemstad, Curacao.

During the coming period a self refit was conducted by the crew of O 15. (3)

27 Jun 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) was docked at Willemstad, Curacao, Dutch West Indies. (3)

28 Jun 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) was undocked. She continued her self refit at Willemstad. (3)

13 Jul 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) ended her refit at Curacao. She departed for Bermuda the same day. She made the passage together with the British sloop HMS Dundee (Capt.(Retd.) O.M.F. Stokes, RN).

For the daily positions of HrMs O 15 during this passage see the map below.

O 15 was to proceed to Halifax, Canada. There she was to join a convoy for onward passage to the U.K. where she was to join the 9th Submarine Flotilla based at Dundee.

19 Jul 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) arrived at Hamilton, Bermuda.

During passage engine defects developed. It was intended to tow O 15 to the U.K. for repairs. This however was rejected and it was decided to stick to the original plan and sent her to Halifax. At Halifax repairs would be made before onward passage to the U.K. (3)

2 Aug 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) departed Bermuda for Halifax. (3)

6 Aug 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) arrived at Halifax. Repairs were now undertaken to the engines. This had to be done mostly be her own crew with the assistence of the Halifax naval dockyard. (3)

5 Oct 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) was docked at Halifax. (3)

31 Oct 1940
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) was undocked. (3)

13 Mar 1941
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) ended her refit at Halifax. Meanwhile it had been decided that O 15 would stay in Canada to aid in A/S training for the rapidly expanding Royal Canadian Navy.

No logs of O 15 are available for the period March 1941 / May 1942 therefore few details are known for this period. (3)

29 Jan 1942
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) departed Halifax for Philadelphia, U.S.A. At the Navy yard there she is to be refitted. (4)

5 Feb 1942
HrMs O 15 (Lt. H.M.L.F.E. van Oostrom Soede, RNN) arrived at the Philadelphia Navy Yard and commenced a refit. (4)

25 May 1942
With her refit completed HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) departed the Philadelphia Navy Yard for the U.S. submarine base at New London, Connecticut.

For the daily positions of HrMs O 15 during this passage see the map below.

(5)

27 May 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) arrived at New London, Connecticut, USA for a period of trials and training. (5)

12 Jun 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) departed New London for Halifax, Canada. After almost two year she is finally to proceed to the U.K.

For the daily positions of HrMs O 15 during this passage see the map below.

(5)

15 Jun 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) arrived at Halifax.

Before she could join a convoy to the U.K. the submarine that had replaced her on A/S training duties (HMS P 514 (Lt.Cdr. R.M.E. Pain, RN)) was lost in an accident.

As the training program of the RCN could not do without a training submarine it was decided that O 15 would be used for training again until she could be replaced by another submarine.

HMS P 553 (Lt. L.F.L. Hill, RNR) was commissioned at New London on 14 September 1942, she was to take over from HrMs O 15 which now was finally able to proceed to the U.K. Two years after it was originally intened to do so. (5)

26 Jun 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) departed Halifax for Pictou. She was escorted by the Canadian corvettes HMCS Ville de Quebec (T/Lt.Cdr. D.G. Jeffrey, DSO, RCNR) and HMCS Port Arthur (T/Lt. E.T. Simmons, DSC, RCNVR). (6)

27 Jun 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) arrived at Pictou. (6)

30 Aug 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) departed Pictou for Halifax. (6)

31 Aug 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) arrived at Halifax. (6)

15 Sep 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) departed Halifax for St.Johns. She was escorted by the Canadian corvette HMCS Alberni (T/Lt. A.W. Ford, RCNR).

For the daily positions of HrMs O 15 during this passage see the map below.

(7)

17 Sep 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) arrived at St.Johns. (7)

19 Sep 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) departed St.Johns for the U.K. (7)

28 Sep 1942
At 1850 hours, HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)), made rendez-vous South off Barrahead with the British ASW trawler HMS Preston North End (Lt. K.A. Vasey, MBE, RNR). Both ships set course for Scapa Flow through the Minches. (7)

30 Sep 1942
At 0630 hours, HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)), arrived at Scapa Flow.

At 1200 hours she departed for Dundee escorted by the British ASW trawler HMS Loch Monteith (T/Lt. K.W. Richardson, RNR). (7)

1 Oct 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) arrived at Dundee. (7)

23 Oct 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) departed Dundee for Lerwick. She was escorted by the trawler HMS River Lossie.

At 0800/24 HMS Leicester City (T/Lt. C.E. Irving, RNVR) took over the escort. (7)

24 Oct 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) arrived at Lerwick. (7)

25 Oct 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) departed Lerwick for her 1st war patrol. She was ordered to patrol off the Norwegian coast and later to take up a patrol position in the Norwegian Sea to give cover for convoy operation to and from Russia.

For the daily positions of HrMs O 15 during this patrol see the map below.

(7)

16 Nov 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) ended her 1st war patrol at Lerwick. (7)

17 Nov 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) departed Lerwick for Dundee. She was escorted by the British ASW trawler HMS Preston North End (Lt. K.A. Vasey, MBE, RNR). (7)

18 Nov 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) arrived at Dundee. (7)

22 Nov 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) shifted from Dundee to Rosyth. She was escorted by HMS ML 443 (T/Lt. T.D.L. Platt, DSO, RNVR) (8)

27 Nov 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) was docked at Rosyth. (8)

4 Dec 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) was undocked. (8)

7 Dec 1942
HrMs O 15 (Lt.Cdr. G. Quint, RNN(R)) shifted from Rosyth to Dundee.

10 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) departed Dundee for Scapa Flow. She was escorted by the British ASW trawler HMS Preston North End (Lt. K.A. Vasey, MBE, RNR). (8)

11 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) arrived at Scapa Flow where she was to participate in A/S exercises. (8)

14 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Matchless (Lt.Cdr. J. Mowlam, RN) and HMS Bermuda (Capt. T.H. Back, RN). (8)

15 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Loyal (Lt.Cdr. H.E.F. Tweedie, DSC, RN) and Adrias. (8)

16 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Queenborough (Cdr. E.P. Hinton, DSO and Bar, MVO, RN) and HMS Relentless (Lt.Cdr. R.A. Fell, RN). (8)

17 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Queenborough (Cdr. E.P. Hinton, DSO and Bar, MVO, RN) and HMS Relentless (Lt.Cdr. R.A. Fell, RN). (8)

18 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMCS Iroquois (Cdr. W.B.L. Holms, RCN). Iroquois was escorting HMS Ajax (Capt. J.J. Weld, MVO, RN) on which HrMs O 15 conducted practice attacks. (8)

19 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Relentless (Lt.Cdr. R.A. Fell, RN) and HMS Goathland (Lt.Cdr. E.N. Pumphrey, RN, DSO and Bar, DSC, RN) (8)

21 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Relentless (Lt.Cdr. R.A. Fell, RN) and HMCS Iroquois (Cdr. W.B.L. Holms, RCN). (8)

22 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Relentless (Lt.Cdr. R.A. Fell, RN) and HMCS Iroquois (Cdr. W.B.L. Holms, RCN). (8)

23 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Relentless (Lt.Cdr. R.A. Fell, RN) and RHS Adrias. (8)

24 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Mackay (Capt. S.V. Jephson, RN) and ORP Piorun (Cdr. T. Gorazdowski). (8)

24 Dec 1942
In the afternoon, HMS Penelope (Capt. G.D. Belben, DSC, AM, RN), conducted an oiling at sea exercise at Scapa flow with the RFA tanker Blue Ranger. This exercise was followed by an A/S exercise with a submarine. [This was most likely HrMs O 15 (Lt. A.J. Schouwenaar, RNN).] (9)

26 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMCS Iroquois (Cdr. W.B.L. Holms, RCN) and HMS Walpole (Lt. A.S. Pomeroy, DSC, RN). (8)

28 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Quadrant (Lt.Cdr. W.H. Farrington, RN) and HMS Raider (Lt.Cdr. K.W. Michell, RN). (8)

29 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Quadrant (Lt.Cdr. W.H. Farrington, RN) and HMS Worcester (Lt.Cdr. W.A. Juniper, RN). (8)

30 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Quadrant (Lt.Cdr. W.H. Farrington, RN). (8)

31 Dec 1942
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Musketeer (Cdr. E.N.V. Currey, DSC, RN) and ORP Orkan (Cdr. S. Hryniewiecki, ORP). (8)

1 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Quadrant (Lt.Cdr. W.H. Farrington, RN) and Miaoulis. (8)

2 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Vivacious (Lt.Cdr. R. Alexander, RN) and ORP Orkan (Cdr. S. Hryniewiecki, ORP). (8)

4 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Vivacious (Lt.Cdr. R. Alexander, RN), HMS Windsor (Lt.Cdr. D.H.F. Hetherington, RN) and Adrias. (8)

5 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Onslaught (Cdr. W.H. Selby, RN) and HMS Brecon (Lt.Cdr. T.D. Herrick, DSC and Bar, RN). (8)

6 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Quadrant (Lt.Cdr. W.H. Farrington, RN), HMCS Iroquois (Cdr. W.B.L. Holms, RCN) and Miaoulis. (8)

7 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Forester (Lt.Cdr. J.A. Burnett, DSC, RN) and HMS Easton (Lt. C.W. Malins, DSC, RN). (8)

8 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Matchless (Lt.Cdr. J. Mowlam, RN) and ORP Piorun (Cdr. T. Gorazdowski). (8)

9 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Queenborough (Cdr. E.P. Hinton, DSO and Bar, MVO, RN), HMS Middleton (Lt. C.S. Battersby, RN), HMS Offa (Cdr. R.A. Ewing, DSC, RN) and HMS Brecon (Lt.Cdr. T.D. Herrick, DSC and Bar, RN). (8)

11 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Middleton (Lt. C.S. Battersby, RN), HMS Easton (Lt. C.W. Malins, DSC, RN) and HMS Brecon (Lt.Cdr. T.D. Herrick, DSC and Bar, RN). (8)

13 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Brecon (Lt.Cdr. T.D. Herrick, DSC and Bar, RN) and ORP Orkan (Cdr. S. Hryniewiecki, ORP). (8)

14 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Brecon (Lt.Cdr. T.D. Herrick, DSC and Bar, RN) and HMCS Iroquois (Cdr. W.B.L. Holms, RCN). (8)

15 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Onslaught (Cdr. W.H. Selby, RN) and HMS Easton (Lt. C.W. Malins, DSC, RN). (8)

18 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Queenborough (Cdr. E.P. Hinton, DSO and Bar, MVO, RN) and HMS Brecon (Lt.Cdr. T.D. Herrick, DSC and Bar, RN). (8)

19 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises with aircraft and destroyers (not specified in O 15's log). (8)

20 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMCS Iroquois (Cdr. W.B.L. Holms, RCN) and HMS Easton (Lt. C.W. Malins, DSC, RN). (8)

21 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) departed Scapa Flow for Lerwick. She was escorted by the British ASW trawler HMS Lord Lloyd (T/Lt. M.W. Bond, RNVR). (8)

22 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) arrived at Lerwick. (8)

23 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) departed Lerwick for her 2nd war patrol. She was ordered to patrol off Kristiansund, Norway.

For the daily positions of HrMs O 15 during this patrol see the map below.

(7)

26 Jan 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) is ordered to leave her patrol area and take up a position off Northern Norway, off the Altafjord. (7)

7 Feb 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) ended her 2nd war patrol at Lerwick. (7)

9 Feb 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) departed Lerwick for Dundee. She made the passage together with HMS P 224 (Lt. J.R. Drummond, DSC, RN), FFS Junon (Cdr. J. Querville, RN) and ORP Sokol (Lt.Cdr. J. Koziolkowski). They were escorted by HMS Loch Monteith (T/Lt. K.W. Richardson, RNR). (8)

10 Feb 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) arrived at Dundee. (8)

24 Feb 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) shifted from Dundee to Rosyth. She was escorted by HMS Loch Monteith (T/Lt. K.W. Richardson, RNR). (8)

26 Feb 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) was docked at Rosyth. (8)

3 Mar 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) was undocked. She immediately departed Rosyth for Dundee where she arrived later the same day. During the passage she was escorted by the British Motor Launch HMS ML 454 (T/Lt. W.M. Russell, RNVR).

At Dundee she commenced a refit which included the fitting of a whole lot of new equipment including radar, Asdic and an echo sounder just to name a few. (8)

11 Jun 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) commenced trials off Dundee. (8)

17 Jun 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) departed Dundee for Lerwick. She was escorted by HMS Loch Monteith (T/Lt. K.W. Richardson, RNR). (8)

18 Jun 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) arrived at Lerwick. (8)

19 Jun 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) departed Lerwick for her 3rd war patrol. She was ordered to perform a anti-uboat patrol in the Norwegian Sea first in position FF (approximately 63°30'N, 01°30'E) and later in position DD (approximately 64°30 N, 01°30'W).

For the daily positions of HrMs O 15 during this patrol see the map below.

(7)

3 Jul 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) ended her 3rd war patrol at Lerwick. (7)

4 Jul 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) departed Lerwick for Dundee. She was escorted by the MS trawler HMS Coll (T/Lt. E.V. Nash, RNR). (10)

5 Jul 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) arrived at Dundee. (10)

19 Aug 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) departed Dundee for Scapa Flow. She was escorted by the British Motor Launch HMS ML 254 (T/Lt. W.M. Russell, RNVR). (10)

20 Aug 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) arrived at Scapa Flow where she was to participate in A/S exercises. (10)

23 Aug 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Musketeer (Cdr. E.N.V. Currey, DSC, RN), HMS Mahratta (Lt.Cdr. E.A.F. Drought, DSC, RN), HMS Oribi (Lt.Cdr. J.C.A. Ingram, RN) and HMS Hussar (Lt.Cdr. R.C. Biggs, DSO, DSC, RN). (10)

24 Aug 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Zetland (Lt.Cdr. J.V. Wilkinson, DSC, RN) and USS Forrest (Lt.Cdr. K.P. Letts, USN). (10)

25 Aug 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Meteor (Lt.Cdr. D.J.B. Jewitt, RN) and HMS Hussar (Lt.Cdr. R.C. Biggs, DSO, DSC, RN). (10)

26 Aug 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Middleton (Lt. C.S. Battersby, RN), HMS Hussar (Lt.Cdr. R.C. Biggs, DSO, DSC, RN), HMS Loch Tulla (T/Skr. S.M. Norton, RNR) and HMS Regal (A/Skr.Lt. J.H.D. Dansie, RNR). (10)

27 Aug 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Hardy (Lt.Cdr. R. Horncastle, RN), HMS Rocket (Lt.Cdr. H.B. Acworth, OBE, RN) and HMS Zetland (Lt.Cdr. J.V. Wilkinson, DSC, RN). (10)

28 Aug 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Spartan (Capt. P.V. McLaughlin, RN), HMS Hardy (Lt.Cdr. R. Horncastle, RN), HMS Rocket (Lt.Cdr. H.B. Acworth, OBE, RN), HMCS Iroquois (Cdr. J.C. Hibbard DSC, RCN) and USS Isherwood (Cdr. R.E. Gadrow, USN). (11)

29 Aug 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted at / off Scapa Flow exercises with HMS Tantivy (Cdr. M.G. Rimington, DSO, RN). (10)

30 Aug 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Bicester (Lt.Cdr. S.W.F. Bennetts, DSO, RN), HMS Chiddingfold (Lt. T.M. Dorrien-Smith, RN), HMS Meteor (Lt.Cdr. D.J.B. Jewitt, RN) and HMS Rocket (Lt.Cdr. H.B. Acworth, OBE, RN). (10)

1 Sep 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Bicester (Lt.Cdr. S.W.F. Bennetts, DSO, RN), HMS Chiddingfold (Lt. T.M. Dorrien-Smith, RN), HMS Kingston Agate (Lt. J. Simms, RNR) and HMS Cape Palliser (Lt. B.T. Wortley, RNR). (10)

2 Sep 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with ORP Orkan (Cdr. S. Hryniewiecki, ORP), HMS Malcolm (Lt. I.M. Clegg, RN), HMS Northern Wave (T/Lt. J.P. Kilbee, RNR) and HMS Cape Palliser (Lt. B.T. Wortley, RNR). (10)

3 Sep 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with ORP Orkan (Cdr. S. Hryniewiecki, ORP), USS Isherwood (Cdr. R.E. Gadrow, USN) and USS Hobson (Lt.Cdr. K. Loveland, USN).

Later she departed Scapa Flow for Lerwick escorted by HMS Loch Monteith (T/Lt. K.W. Richardson, RNR). (10)

4 Sep 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) arrived at Lerwick. (10)

7 Sep 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) departed Lerwick for her 4th war patrol. She was ordered to perform a anti-uboat patrol in the Norwegian Sea in patrol position CC (approximately 64°30'N, 02°30'W).

For the daily positions of HrMs O 15 during this patrol see the map below.

(7)

21 Sep 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) ended her 4th war patrol at Lerwick. (7)

22 Sep 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) departed Lerwick for Dundee. She was escorted by HMS Loch Monteith (T/Lt. K.W. Richardson, RNR). (10)

23 Sep 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) arrived at Dundee. (10)

24 Sep 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) departed Dundee for Lerwick. She made the passage together with HMS Satyr (Lt. T.S. Weston, RN) and HNoMS Ula (Lt. R.M. Sars). They were escorted by HMS Loch Monteith (T/Lt. K.W. Richardson, RNR). (10)

25 Sep 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) arrived at Lerwick. (10)

5 Oct 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) departed Lerwick for Dundee. She was escorted by HMS Bressay (T/Lt. J.E. Wilmot, RNVR).

O 15 was to sail for patrol west of Andoy, Norway but was unable to do so due to defective after hydroplanes. (10)

6 Oct 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) arrived at Dundee. (10)

12 Oct 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) was docked at Dundee. (10)

26 Oct 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) was undocked. (10)

5 Nov 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted trials and exercises off Dundee. (10)

7 Nov 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted exercises off Dundee. (10)

9 Nov 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) departed Dundee for Scapa Flow. She made the passage together with HrMs K XIV (Lt.Cdr. J.F. Drijfhout Van Hooff, RNN) that was to proceed to Holy Loch.

They were escorted by HMS Loch Monteith (T/Lt. K.W. Richardson, RNR). (10)

10 Nov 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) arrived at Scapa Flow. (10)

11 Nov 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Onslow (Capt. J.A. McCoy, DSO, RN) and HMS Venus (Cdr. J.S.M. Richardson DSO, RN). (10)

13 Nov 1943
HrMs O 15 (Lt. A.J. Schouwenaar, RNN) conducted A/S exercises with at / off Scapa Flow HMS Onslaught (Cdr. W.H. Selby, DSC, RN) and HMCS Huron (Lt.Cdr. H.S. Rayner, DSC, RCN), HMS Obedient (Lt.Cdr. H. Unwin, DSC and Bar, RN) and HMS Hussar (Lt.Cdr. R.C. Biggs, DSO, DSC, RN). (10)

16 Nov 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Hardy (Lt.Cdr. R. Horncastle, RN) and HMS Vigilant (Lt.Cdr. L.W.L. Argles, RN). (10)

17 Nov 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Scorpion (Lt.Cdr. W.S. Clouston, RN) and HMS Scourge (Lt.Cdr. G.I.M. Balfour, RN). (10)

18 Nov 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Milne (Capt. I.M.R. Campbell, DSO, RN) and HNoMS Stord (Lt.Cdr. S.V. Storheill). (10)

20 Nov 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Savage (Cdr. R.C. Gordon, DSO, RN) and HMS Ashanti (Lt.Cdr. J.R. Barnes, RN). (10)

21 Nov 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) conducted A/S exercises at / off Scapa Flow with HMS Musketeer (Cdr. R.L. Fisher, OBE, RN).

Upon completion of the exercises O 15 departed Scapa Flow for Lerwick. She was escorted by HNoMs Molde. (10)

22 Nov 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) arrived at Lerwick. (10)

26 Nov 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) departed Lerwick for her 5th war patrol. She was ordered to perform a anti-uboat patrol in the Norwegian Sea in patrol position EE (approximately 64°00'N, 00°30'E).

For the daily positions of HrMs O 15 during this patrol see the map below.

(7)

4 Dec 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) ended her 5th war patrol at Lerwick. (7)

5 Dec 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) and HMS Viking (Lt. R. Bannar-Martin, DSC, RN) departed Lerwick for Dundee. They were escorted by HNoMS Narvik. (12)

6 Dec 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) arrived at Dundee. (13)

13 Dec 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) and HMS Satyr (Lt. T.S. Weston, RN) departed Dundee for Lerwick.

They were escorted by HMS Loch Monteith (T/Lt. K.W. Richardson, RNR). (13)

14 Dec 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) arrived at Lerwick. After a few hours she departed for her 6th war patrol. She was ordered to patrol off the West coast of Norway, near Stavanger.

For the daily and attack positions of HrMs O 15 during this patrol see the map below.

(7)

26 Dec 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) fires three torpedoes against a German convoy in the Skudenes Fjord off the Southern entrance of Karmsundet in position 59°07'N, 05°24'E. The Norwegian merchant vessel Roald Jarl (1404 GRT, built 1913, offsite link) reports spotting two torpedo wakes, one of which passed underneath her.

(All times are zone -1)
1155 hours - Sighted two or more merchant ships proceeding South in Karmsundet.

1157 hours - It was now seen that a convoy of five or more ships was steaming South in Karmsundet on a course of 173°. Started attack. The escort was an armed trawler was leading the convoy. Range was 2000 yards. O 15 was however not in a favourable attack position and the convoy was likely to alter course shortly. O 15 went to 60 feet and manouvered to obtain a better attack position.

1210 hours - Returned to periscope depth. Saw that the convoy was made up of two rows of three ships each. It also had made the anticipated change of course. Continued attack.

1214 hours - Transmissions were now heard and it appeared the escort was in contact. These transmissions were heard during the remainder of the attack.

1225 hours - Fired three torpedoes. These were aimed one each at the leading ships of both columns and the rear ship of the second column. Three explosions were heard shortly afterwards. Asdic transmissions from the escort were now clearly audible inside the submarine and shortly afterwards the trawler passed overhead but did not drop any depth charges.

1250 hours - The stern torpedo tube was fired at the escort but no hit was obtained as the tube was fired prematurely due to a mechanical defect. O 15 meanwhile retired to seaward but no counter attack followed. No further observations could be made due to the bad visibility.

[ The escort seen by O 15 was the German armed trawler UJ 1712 (527 tons, built 1942). The ships in the convoy were the above mentioned Roald Jarl and most likely the Dora Oldendorf (2671 GRT, built 1896), Eisberg (492 GRT, built 1940), Thielbek (2815 GRT, built 1940) and Vesta (1620 GRT, built 1921). It is possible German minesweeper M 421 was also part of the escort. ] (7)

28 Dec 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) ended her 6th war patrol at Lerwick. (7)

29 Dec 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) and HMS Venturer (Lt. J.S. Launders, DSC, RN) departed Lerwick for Dundee. They were escorted by HMS Lord Ashfield (T/Lt. J.B. Morpeth, RNR). (13)

30 Dec 1943
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) arrived at Dundee. (13)

20 Jan 1944
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) departed Dundee for Lerwick. She made the passage with HNoMS Ula (Lt. R.M. Sars).

The submarines were escorted by HMS Lord Ashfield (T/Lt. J.B. Morpeth, RNR).

At 0315/21 Ula proceeded to Scapa Flow. O 15 and Lord Ashfield continued on to Lerwick. (13)

21 Jan 1944
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) arrived at Lerwick. After a few hours she departed for her 7th war patrol. She was ordered to patrol off the West coast of Norway, Stadlandet area.

For the daily positions of HrMs O 15 during this patrol see the map below.

(7)

22 Jan 1944
In the evening HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) set course to return to Lerwick owning to defective after hydroplanes. (7)

24 Jan 1944
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) ended her 7th war patrol at Lerwick. (7)

25 Jan 1944
HMS Seadog (Lt. C.R. Pelly, RN) and HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) departed Lerwick for Dundee. They were escorted by HMS Lord Ashfield (T/Lt. J.B. Morpeth, RNR). (14)

26 Jan 1944
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) arrived at Dundee. (13)

28 Jan 1944
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) was docked at Dundee. (13)

30 Jan 1944
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) was undocked. (13)

1 Feb 1944
HrMs O 15 (Lt.Cdr. A.J. Schouwenaar, RNN) was docked again at Dundee for a short refit. (13)

12 Mar 1944
HrMs O 15 (Lt. S.H. de Boer, RNN) was undocked. (13)

21 Mar 1944
During 21 and 22 March 1944, HrMs O 15 (Lt. S.H. de Boer, RNN), conducted attack exercises off Dundee. Target was the British destroyer HMS Vigilant (Lt.Cdr. L.W.L. Argles, RN). (13)

19 Apr 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) and HMS Sunfish (Lt. H.J. Bartlett, DSC, RN) departed Dundee for Scapa Flow. They were escorted by HMS Loch Monteith (T/Lt. K.W. Richardson, RNR). (13)

20 Apr 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) arrived at Scapa Flow. (13)

20 Apr 1944
Around 0700B/20, HMS Taku (Lt. A.J.W. Pitt, RN) departed Lerwick for Holy Loch. She was escorted by HMS Cutty Sark (A/Cdr. E.A. Stocker, DSC, RN). The next day, off Scapa Flow, they were joined by the Dutch submarine HrMs O 15 (Lt. J.B.M.J. Maas, RNN) and the British submarine HMS Visigoth (Lt. J.R.H. Haddow, DSC, RN). (15)

21 Apr 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) departed Scapa Flow for Rothesay. She made the passage together with HMS Taku (Lt. A.J.W. Pitt, RN) and HMS Visigoth (Lt. J.R.H. Haddow, DSC, RN).

The submarines were escorted by the armed yacht HMS Cutty Sark. (13)

23 Apr 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) arrived at Rothesay. (13)

25 Apr 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) shifted from Rothesay to Campbeltown. (13)

27 Apr 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with aircraft. (13)

28 Apr 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with aircraft. (13)

29 Apr 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with aircraft. (13)

30 Apr 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with HMS Spaniel and HMS Boarhound (A/Ch.Skr. A. Keable, RNR). (13)

1 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with HMS Camellia (T/A/Lt.Cdr. A.H. Lyons, RNVR) and HMS Charlock (T/Lt. J.E.B. Healy, RNVR). (13)

2 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with HMS Spaniel and HMS Bedlington. (13)

3 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with HMS Pelican (Cdr. J.S. Dalison, DSO, RN) and HMS Crane (Lt.Cdr. R.G. Jenkins, RN). (13)

5 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S off Campbeltown exercises with aircraft. (13)

7 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with HMS St. Modwen (Lt.Cdr. J.M. Lycett, DSC, RNR). (13)

10 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with HMS Radiant (T/Lt. C.S.R. Shapland, RNVR) and HMS Boarhound (A/Ch.Skr. A. Keable, RNR). (13)

11 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with HMS Bretwalda (Skr. J.B. Henderson, RNR) and HMS L' Atlantique (Skr. C.A. Collins, RNR). (13)

14 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with FFS Roselys and HMS Radiant (T/Lt. C.S.R. Shapland, RNVR). (13)

15 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S off Campbeltown exercises with aircraft. (13)

17 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with HMS Boarhound (A/Ch.Skr. A. Keable, RNR) and HMS L' Atlantique (Skr. C.A. Collins, RNR). (13)

18 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) shifted from Campbeltown to Rothesay. (13)

22 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) shifted from Rothesay to Campbeltown. (13)

23 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with HMS Boarhound (A/Ch.Skr. A. Keable, RNR) and another ship (can't make the name out in the log of O 15). (13)

24 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises with off Campbeltown HMS Boarhound (A/Ch.Skr. A. Keable, RNR) and HMS Tuscarora (Lt.Cdr.(Retd.) H.T. Pitt, RN). (13)

27 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with aircraft. (13)

28 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with the Free French corvette FFS Commandant d'Estienne d'Orves. (13)

29 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with aircraft. (13)

30 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with the Free French corvette FFS Commandant d'Estienne d'Orves. (13)

31 May 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with HMS Bretwalda (Skr. J.B. Henderson, RNR). (13)

1 Jun 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) departed Campbeltown for Londonderry. She made the passage together with ORP Dzik (Kmdr.ppor. (Cdr.) B.S. Romanowski) which came from Rothesay.

They were escorted by the British destroyer HMS Sardonyx (A/Lt.Cdr. T.A. Easton, RNVR). (13)

2 Jun 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) and ORP Dzik (Kmdr.ppor. (Cdr.) B.S. Romanowski) arrived at Londonderry, Northern Ireland where they were to participate in A/S exercises. (13)

6 Jun 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Lough Foyle with HMS Pasley (Lt. P.G.R. Mitchell, RN). (13)

7 Jun 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Lough Foyle with HMS Pasley (Lt. P.G.R. Mitchell, RN). (13)

8 Jun 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Lough Foyle with HMS Pasley (Lt. P.G.R. Mitchell, RN). (13)

20 Jun 1944
While moored at Londonderry HrMs O 15 (Lt. J.B.M.J. Maas, RNN) is twice hit by two other submarines. Once by HMS H 34 (Lt. R.L. Jay, RN) and once by ORP Dzik (Kmdr.ppor. (Cdr.) B.S. Romanowski). (13)

11 Jul 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Lough Foyle with aircraft. (13)

18 Jul 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Lough Foyle with HMCS Kamloops (T/A/Lt.Cdr. D.M. Stewart, RCNR), HMCS Morden (T/Lt. K.B. Culley, RCNVR) and HMCS Chilliwack (T/Lt. D.R. Watson, MBE, RCNR). (16)

25 Jul 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Lough Foyle with HMCS Wentworth (T/Lt.Cdr. R.J.C. Pringle, RCNVR) and HMCS Ville de Quebec (T/A/Lt.Cdr. H.C. Hatch, RCNVR). (16)

3 Aug 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) and HMS H 32 (Lt. I.M. Stoop, DSC, RN) both departed Londonderry (Loch Foyle) for Rothesay. They were escorted by the British armed yacht HMS Kihna (Cdr.(Retd.) T.J.T.C. Jenks, RN). (16)

4 Aug 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) arrived at Rothesay. (16)

19 Aug 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) was docked at Rothesay. (16)

24 Aug 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) was undocked. (16)

4 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) shifted from Rothesay to Campbeltown. (16)

5 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with HMS Shemara (Cdr.(Retd.) H. Buckle, RN) and another vessel (can't make out the name in the log of O 15). (16)

7 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with HMS Altair (T/Lt. J.L. James, RNR) and HMS Bedlington (Skr. A.W. Peak, RNR). (16)

8 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted practice attacks off Campbeltown with on the British armed yacht HMS Tuscarora (Lt.Cdr.(Retd.) H.T. Pitt, RN). (16)

10 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with HMS PC 74 (A/Lt.Cdr. A. Richardson, RNR) and HMS La Cordeliere (Lt.Cdr. A.J.G. Barff, RNR). (16)

11 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with HMS PC 74 (A/Lt.Cdr. A. Richardson, RNR). (16)

13 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with HMS L' Atlantique (Skr. C.A. Collins, RNR). (16)

14 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with HMS PC 74 (A/Lt.Cdr. A. Richardson, RNR). Later on the day radar exercises were carried out with HMS Altair (T/Lt. J.L. James, RNR). (16)

17 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises with HMS Spaniel. (16)

19 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with HMS PC 74 (A/Lt.Cdr. A. Richardson, RNR) and HMS La Cordeliere (Lt.Cdr. A.J.G. Barff, RNR). (16)

20 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with HMS Shemara (Cdr.(Retd.) H. Buckle, RN) and HMS Camellia (T/Lt. G.W. Charlton, DSC, RNR).

During the evening and the night she also conducted practice attacks on HMS Unshaken (Lt. J.S. Pearce, RNR). (16)

21 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with HMS Pimpernel (Lt. H.D. Hayes, RNR). (16)

22 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with HMS Pimpernel (Lt. H.D. Hayes, RNR). (16)

24 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with HMS Spaniel and HMS Bedlington (Skr. A.W. Peak, RNR). (16)

26 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with HMS PC 74 (A/Lt.Cdr. A. Richardson, RNR) and HMS Bedlington (Skr. A.W. Peak, RNR). (16)

27 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with HMS Spaniel and HMS Bedlington (Skr. A.W. Peak, RNR). (16)

28 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with the British armed yacht HMS Tuscarora (Lt.Cdr.(Retd.) H.T. Pitt, RN). (16)

29 Sep 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with the British armed yacht HMS Tuscarora (Lt.Cdr.(Retd.) H.T. Pitt, RN). (16)

1 Oct 1944
HrMs O 15 (Lt. W.C.M. de Jonge van Ellemeet, RNN) conducted A/S exercises off Campbeltown with the armed yachts HMS St. Modwen (Lt.Cdr. J.M. Lycett, DSC, RNR) and HMS Tuscarora (Lt.Cdr.(Retd.) H.T. Pitt, RN). (16)

2 Oct 1944
HrMs O 15 (Lt. J.B.M.J. Maas, RNN) conducted A/S exercises off Campbeltown with HMS Tuscarora (Lt.Cdr.(Retd.) H.T. Pitt, RN). and HMS Bretwalda (Skr. J.B. Henderson, RNR). (16)

4 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Spaniel and HMS Shemara (Cdr.(Retd.) H. Buckle, RN). (16)

5 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with the armed yachts HMS St. Modwen (Lt.Cdr. J.M. Lycett, DSC, RNR) and HMS Altair (T/Lt. J.L. James, RNR). (16)

6 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Spaniel and HMS Camellia (T/Lt. G.W. Charlton, DSC, RNR). (16)

8 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Spaniel and HMS Shemara (Cdr.(Retd.) H. Buckle, RN). (16)

9 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Shemara (Cdr.(Retd.) H. Buckle, RN) and HMS Tuscarora (Lt.Cdr.(Retd.) H.T. Pitt, RN). (16)

10 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Spaniel and HMS Bedlington (Skr. A.W. Peak, RNR). (16)

11 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Spaniel and HMS Bedlington (Skr. A.W. Peak, RNR). (16)

12 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS St. Modwen (Lt.Cdr. J.M. Lycett, DSC, RNR) and HMS L' Atlantique (Skr. C.A. Collins, RNR). (16)

13 Oct 1944
While en-route from Campbeltown to the exercise area HrMs O 15 (Lt. R.W. van Lynden, RNN) is rammed by HMS Bretwalda (Skr. J.B. Henderson, RNR). The next morning, during a dive, minor damage to the Starboard propeller and the pressure hull is discovered. Arrangements were made for repairs.

After being rammed O 15 continued to the exercise area and conducted A/S exercises off Campbeltown with HMS St. Modwen (Lt.Cdr. J.M. Lycett, DSC, RNR) and HMS Valena (T/Lt. H. Trefusis, RNVR). (16)

15 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Valena (T/Lt. H. Trefusis, RNVR) and HMS Altair (T/Lt. J.L. James, RNR). (16)

16 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Bretwalda (Skr. J.B. Henderson, RNR) and HMS L' Atlantique (Skr. C.A. Collins, RNR). (16)

17 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Bretwalda and HMS Tuscarora (Lt.Cdr.(Retd.) H.T. Pitt, RN). (16)

18 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Spaniel and HMS Bedlington (Skr. A.W. Peak, RNR). (16)

19 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Bretwalda (Skr. R.W. Denny, RNR) and HMS Tuscarora (Lt.Cdr.(Retd.) H.T. Pitt, RN). (16)

22 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Spaniel and HMS Bedlington (Skr. A.W. Peak, RNR). (16)

23 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Altair (T/Lt. J.L. James, RNR).

24 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Altair (T/Lt. J.L. James, RNR) and HMS Radiant (T/A/Lt.Cdr. C.S.R. Shapland, RNVR). (16)

25 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) shifted from Campbeltown to Rothesay. (16)

27 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) departed Rothesay for the exercise area off Campbeltown. There she conducted A/S exercises with HMS Bretwalda (Skr. R.W. Denny, RNR) and HMS Tuscarora (Lt.Cdr.(Retd.) H.T. Pitt, RN). Upon completion of the exercises O 15 went to Campbeltown. (16)

29 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Bretwalda (Skr. R.W. Denny, RNR) and HMS Tuscarora (Lt.Cdr.(Retd.) H.T. Pitt, RN). (16)

31 Oct 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Altair (T/Lt. J.L. James, RNR) and HMS Valena (T/Lt. H. Trefusis, RNVR). (16)

1 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Altair (T/Lt. J.L. James, RNR) and HMS Valena (T/Lt. H. Trefusis, RNVR). (16)

2 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS St. Modwen (Lt.Cdr. J.M. Lycett, DSC, RNR) and HMS Shemara (Cdr.(Retd.) H. Buckle, RN). (16)

3 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Bedlington (Skr. A.W. Peak, RNR) and HMS Radiant (T/A/Lt.Cdr. C.S.R. Shapland, RNVR). (16)

4 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Bulldog (Lt.Cdr. C.G. Walker, RN) and HMS Wallflower (T/A/Lt.Cdr. T.D. Bennett, RNR). (16)

6 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Loch Killin (Lt.Cdr. S. Darling, RANVR) and HMS Wallflower (T/Lt. A.C. Martyn, RNVR). (16)

8 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS St. Modwen (Lt.Cdr. J.M. Lycett, DSC, RNR) and HMS L' Atlantique (Skr. C.A. Collins, RNR). (16)

9 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Radiant (T/A/Lt.Cdr. C.S.R. Shapland, RNVR) and HMS Crane (Lt.Cdr. R.G. Jenkins, RN). (16)

10 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Shemara (Cdr.(Retd.) H. Buckle, RN) and HMS Bluebell (Lt. G.H. Walker, DSC, RNVR). (16)

12 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Bedlington (Skr. A.W. Peak, RNR) and HMS Radiant (T/A/Lt.Cdr. C.S.R. Shapland, RNVR). (16)

13 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises with aircraft. (16)

14 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with HMS Shemara (Cdr.(Retd.) H. Buckle, RN) and HMS Spaniel. (16)

15 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted A/S exercises off Campbeltown with aircraft. (16)

16 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) shifted from Campbeltown to Rothesay. (16)

18 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) departed Rothesay for Dundee. She made the passage together with HrMs Zeehond (Lt.Cdr. Baron D.T. Mackay, RNN). The submarines were escorted by HMS Castlenau (T/Skr. G. Wood, RNR). (16)

19 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN), HrMs Zeehond (Lt.Cdr. Baron D.T. Mackay, RNN) and their escort HMS Castlenau (T/Skr. G. Wood, RNR) arrive at Tobermory. (16)

20 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN), HrMs Zeehond (Lt.Cdr. Baron D.T. Mackay, RNN) and their escort HMS Castlenau (T/Skr. G. Wood, RNR) shifted from Tobemory to Loch Alsh. (16)

21 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN), HrMs Zeehond (Lt.Cdr. Baron D.T. Mackay, RNN) and their escort HMS Castlenau (T/Skr. G. Wood, RNR) shifted from Loch Alsh to Stornoway. (16)

23 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN), HrMs Zeehond (Lt.Cdr. Baron D.T. Mackay, RNN) and their escort HMS Castlenau (T/Skr. G. Wood, RNR) shifted from Stornoway to Loch Eriboll. (16)

24 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN), HrMs Zeehond (Lt.Cdr. Baron D.T. Mackay, RNN) and their escort HMS Castlenau (T/Skr. G. Wood, RNR) departed Loch Eriboll to continue their passage to Dundee. (16)

25 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN), HrMs Zeehond (Lt.Cdr. Baron D.T. Mackay, RNN) and their escort HMS Castlenau (T/Skr. G. Wood, RNR) arrived at Dundee. (16)

26 Nov 1944
HrMs O 15 (Lt. R.W. van Lynden, RNN) commenced a refit at Dundee. The refit was done for the most part by her own crew. (16)

8 Jan 1945
With her (self-)refit completed HrMs O 15 (Lt. R.W. van Lynden, RNN) is now used for the training of Dutch submarine crews. (16)

20 Feb 1945
HrMs O 23 (Lt.Cdr. A.J. Schouwenaar, RNN) and HrMs O 15 (Lt. R.W. van Lynden, RNN) both conducted exercises of Dundee. They made pratice attacks on each other. (16)

21 Feb 1945
HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted a practive attack on HrMs Zeehond (Lt. S.H. de Boer, RNN). (16)

22 Feb 1945
HrMs O 15 (Lt. R.W. van Lynden, RNN) and HrMs Zeehond (Lt. S.H. de Boer, RNN) both conducted exercises of Dundee. They made pratice attacks on each other. (16)

28 Feb 1945
HrMs O 15 (Lt. R.W. van Lynden, RNN) and HrMs Zeehond (Lt. S.H. de Boer, RNN) both conducted exercises of Dundee. They made pratice attacks on each other. (16)

6 Mar 1945
HrMs O 15 (Lt. R.W. van Lynden, RNN) and HrMs Zeehond (Lt. S.H. de Boer, RNN) both conducted exercises of Dundee. They made pratice attacks on each other. (16)

7 Mar 1945
HrMs O 15 (Lt. R.W. van Lynden, RNN) and HrMs Dolfijn (Lt.Cdr. J.B.M.J. Maas, RNN) both conducted exercises of Dundee. O 15 made one practice attack on Dolfijn. (16)

8 Mar 1945
HrMs Dolfijn (Lt.Cdr. J.B.M.J. Maas, RNN), HrMs Zeehond (Lt.Cdr. Baron D.T. Mackay, RNN) and HrMs O 15 (Lt. R.W. van Lynden, RNN) conducted exercises off Dundee with each other. (17)

9 Mar 1945
HrMs Dolfijn (Lt.Cdr. J.B.M.J. Maas, RNN) conducted exercises off Dundee together with HrMs O 15 (Lt. R.W. van Lynden, RNN) and HMS Commodator (T/Skr. J.B. Davidson, RNR). (17)

13 Mar 1945
HrMs O 15 (Lt. R.W. van Lynden, RNN) and ORP Dzik (Por.mar. (Lt.) A. Klopotowski) both conducted exercises of Dundee. They made pratice attacks on each other. (16)

28 Mar 1945
HrMs O 15 (Lt. R.W. van Lynden, RNN) and HrMs Zeehond (Lt. S.H. de Boer, RNN) both conducted exercises of Dundee. They made pratice attacks on each other. (16)

30 Apr 1945
HrMs O 15 (Lt. R.W. van Lynden, RNN) was docked at Dundee. (16)

23 May 1945
HrMs O 15 (Lt. R.W. van Lynden, RNN) was undocked. (16)

27 Jun 1945
HrMs O 15 (Lt. R.W. van Lynden, RNN) departed Dundee for Rotterdam.

30 Jun 1945
HrMs O 15 (Lt. R.W. van Lynden, RNN) arrived at Rotterdam.

23 Jul 1945
HrMs O 15 (Lt. R.W. van Lynden, RNN) departed Rotterdam for Dundee.

25 Jul 1945
HrMs O 15 (Lt. R.W. van Lynden, RNN) arrived at Dundee.

12 Sep 1945
HrMs O 15 (Lt.Cdr. R.W. van Lynden, RNN) was decommissioned at Dundee.

10 Dec 1945
The decommissioned O 15 departed Dundee for Rotterdam where she arrived on 12 December 1945. At Rotterdam she was used as accomodation vessel for a while.