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Submarine HMS Olympus (N 35)

29 Jan 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Colombo for her 5th war patrol. She was ordered to patrol off the Maldives.

For the daily positions of HMS Olympus during this patrol see the map below.

(1)

4 Feb 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) ended her 5th war patrol at Colombo. (2)

8 Feb 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is docked at Colombo. (2)

10 Feb 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is undocked. (2)

22 Feb 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) conducted exercises off Colombo. These included a practice attack on the Australian light cruiser HMAS Hobart (Capt. H.L. Howden, RAN) on her return from escort duties. (2)

23 Feb 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) conducted exercises off Colombo together with HMS Widnes (Lt.Cdr. R.B. Chandler, RN). (2)

28 Feb 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Colombo for her 6th war patrol. She was ordered to patrol off the Chagos Archipaligo and the Maldives.

For the daily position of HMS Olympus during this patrol see the map below.

(2)

27 Mar 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) ended her 6th war patrol at Colombo. (3)

4 Apr 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) conducted exercises off Colombo together with HMIS Ramdas (Lt.Cdr. M.H.St.L. Nott, RIN). (4)

16 Apr 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Colombo for Aden. HMS Olympus was to proceed to Malta and join the Mediterranean Fleet.

For the daily positions of HMS Olympus during the passage from Colombo to Malta see the map below.

(4)

24 Apr 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Aden. (4)

26 Apr 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Aden for Port Said. (4)

1 May 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Port Said. (5)

2 May 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Port Said for Malta. (5)

7 May 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Malta. (5)

9 May 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is taken in hand for refit at Malta. (5)

18 May 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is docked at Malta. (5)

29 May 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is undocked. (5)

5 Jun 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is docked at Malta. (6)

7 Jul 1940
At 0915 hours (zone -2), HMS Olympus (Lt.Cdr. H.G. Dymott, RN), was bombed and damaged by Italian aircraft while in dock in Malta. Repairs and refit were delayed and were only completed on 29 November 1940. (7)

9 Sep 1940
At 1225 hours (zone -2), HMS Olympus (Lt.Cdr. H.G. Dymott, RN), was again bombed and damaged by Italian aircraft while in dock in Malta. She sustained some minor damage. (8)

18 Oct 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) was undocked. (9)

11 Nov 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is docked at Malta. (10)

14 Nov 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is undocked. (10)

26 Nov 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) conducted a basin dive at Malta. (10)

14 Dec 1940
During the night of 14/15 December 1940, HMS Olympus (Lt.Cdr. H.G. Dymott, RN), conducted trials and exercises off Malta. (11)

16 Dec 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Malta for a few days of exercises south of Malta.

For the daily positions of HMS Olympus during these exercises see the map below.

19 Dec 1940
Having completed her exercise programme, HMS Olympus (Lt.Cdr. H.G. Dymott, RN), returned to Malta. (11)

22 Dec 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Malta for Gibraltar.

For the daily positions of HMS Olympus during this passage see the map below.

(11)

29 Dec 1940
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Gibraltar. (11)

2 Jan 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Gibraltar for her 7th war patrol. She is ordered to patrol off the Azores.

For the daily positions of HMS Olympus during this patrol see the map below.

(12)

26 Jan 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is ordered to patrol off Brest, France. (12)

29 Jan 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) ended her 7th war patrol at Portsmouth. At Portsmouth she was docked around mid-February for repairs. (12)

23 Feb 1941 (position 0.00, 0.00)
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Portsmouth for Dartmouth.

24 Feb 1941 (position 0.00, 0.00)
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Dartmouth for a short work-up period and A/S exercises.

28 Feb 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Dartmouth for Gibraltar.

As no log is available for this period no map can be displayed.

7 Mar 1941 (position 0.00, 0.00)
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Gibraltar.

14 Mar 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Gibraltar for her 8th war patrol. She was to provide escort for convoys HG 56 / OG 56.

As no log is available for this period no map can be displayed.

2 Apr 1941 (position 0.00, 0.00)
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) ended her 8th war patrol at Gibraltar.

3 Apr 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Gibraltar for her 9th war patrol. She was ordered to patrol off Oran as it is thought that the Vichy-French battleship Dunkerque might be leaving that port.

As no log is available for this period no map can be displayed.

5 Apr 1941 (position 0.00, 0.00)
Her patrol off Oran is cancelled, HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is ordered to proceed to Malta.

9 Apr 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Malta. She arrived at Malta with many defects.

21 May 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Malta for Gibraltar.

As no log is available for this period no map can be displayed.

28 May 1941 (position 0.00, 0.00)
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Gibraltar.

14 Jun 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Gibraltar for her 10th war patrol. She was to provide escort for convoys HG 65 / OG 65.

As no log is available for this period no map can be displayed.

28 Jun 1941 (position 0.00, 0.00)
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) ended her 10th war at Gibraltar.

4 Jul 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is docked at Gibraltar. (13)

11 Jul 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is undocked. (13)

15 Jul 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) conducted exercises off Gibraltar. (13)

16 Jul 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Gibraltar for her 11th war patrol (2nd in the Mediterranean). She was ordered to patrol in the Tyrrhenian Sea.

For the daily and attack positions of HMS Olympus during this patrol see the map below.

(12)

21 Jul 1941 (position 39.53, 11.49)
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) twice attacked an Italian convoy with a single torpedo in the central Tyrrhenian Sea. Both torpedoes missed.

The convoy attacked was made up of the Italian merchants Pallade (1152 GRT, built 1899) and Vincenzina (1579 GRT, built 1889). They were escorted by the Armed Merchant Cruiser Città di Palermo (5413 GRT, built 1930) and were en-route from Naples to Cagliari.

(All times are zone -1)
1327 hours - In position 39°53'N, 11°49'E sighted the masts and upperworks of a ship. On closing sighted that this was an armed merchant cruiser with two 2000 - 3000 ton freighters in convoy. Started attack. The convoy was on a steady course from Naples to Cagliary.

1358 hours - Fired one torpedo from 6000 yards. It missed.

1423 hours - Fired another torpedo from 5500 yards. This torpedo also missed. (12)

23 Jul 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) attacked a large passenger ship south-east of Ischia Island. No hits were obtained.

Lt.Cdr Dymott thought her had attacked a large liner of the Conte Grande-class but this was not the case. The ship attacked was most likely Città di Trieste (4658 GRT, built 1915) which reported being missed by torpedoes at 1425 hours (Italian time) while off Ischia.

(All times are zone -1)
1327 hours - Fired two torpedoes (four were intended but two torpedo tubes misfired but of the torpedoes fired only one was heard to run) at a large passenger vessel escorted by a small sloop. Range was 3000 yards. Attack position was to the south-east of Ischia Island (146° - Ischia - 2.5 nautical miles). No hits were obtained. (12)

28 Jul 1941 (position 40.40, 9.50)
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) torpedoed and sank the Italian merchant Monteponi (742 GRT, built 1917) about 10 nautical miles north of Cape Comino, Sardinia, Italy in position 40°40'N, 09°50'E.

(All times are zone -1)
1055 hours - Sighted a small merchant ship. Started attack.

1155 hours - Fired one torpedo from 900 yards. It hit. The ship was seen to sink in about 40 seconds. (12)

29 Jul 1941 (position 39.04, 9.38)
At 1130 hours (zone -1), in position 39°04'N 09°38'E, HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is damaged by a near miss from an Italian aircraft east of Cavoli Island (off the south-east corner of Sardinia) while trying to attack an enemy convoy. Lt.Cdr. Dymott is forced to abandon his patrol and return to Gibraltar where the submarine arrived on 2 August. (12)

2 Aug 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) ended her 11th war patrol (2nd in the Mediterranean) at Gibraltar. At Gibraltar repairs to the damage were undertaken including the removal of the battery for repairs to it. (12)

Submarine HMS Severn (N 57)

20 Aug 1941
HMS Severn (with Lt.Cdr. H.G. Dymott, RN temporary in command as Lt.Cdr. Campbell was sick)eparted Gibraltar for her 16th war patrol. She was ordered to patrol in the North Atlantic to the west of Gibraltar.

Shortly after departing Gibraltar HMS Severn grounded near Cape Spartel and damaged her Asdic dome.

For the daily positions of HMS Severn during this patrol see the map below.

(14)

4 Sep 1941
HMS Severn (Lt.Cdr. H.G. Dymott, RN) ended her 16th war patrol at Gibraltar. (15)

Submarine HMS Olympus (N 35)

23 Oct 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) conducted trials and exercises off Gibraltar. (16)

24 Oct 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) conducted exercises off Gibraltar. (16)

27 Oct 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) conducted exercises off Gibraltar. (16)

28 Oct 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) conducted exercises off Gibraltar. (16)

30 Oct 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Gibraltar for her 12th war patrol (3rd in the Mediterranean). She was ordered to patrol off southern France near the Spanish - French border.

For the daily and attack positions of HMS Olympus during this patrol see the map below.

(12)

9 Nov 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) attacks the Italian merchant Mauro Croce (1049 GRT, built 1898) with gunfire and later with a torpedo near the border between Spain and France. The target escapes without damage.

(All times are zone -1)
0325 hours - Off Rosas Bay sighted a darkened ship buring dimmed navigation lights bearing 190°, range 5 nautical miles. Closed to investigate.

0415 hours - The ship was identified as being our target, the Mauro Croce. Started shadowing her.

0545 hours - Closed up the gun crews and made ready the torpedo tubes.

0600 hours - Called Mauro Croce and ordered her to stop.

0605 hours - Having received no reply fired a shot across her bows.

0610 hours - Opened fire from 2500 yards. Fired 12 rounds but obtained no hits.

0615 hours - By now Mauro Croce was possibly in Spanisch waters. Ceased fire.

0617 hours - In position 130°, Cape Bear, 5 nautical miles, fired one torpedo from 1600 yards. It missed.

0642 hours - Dived as it was getting light. (12)

12 Nov 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) ended her 12th war patrol (3rd in the Mediterranean) at Gibraltar.

The commanding officer of the 8th Submarine Flotilla (Capt. G.A.W. Voelcker, RN) was ' not impressed ' by the failed attack on Mauro Crose. (12)

23 Nov 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) conducted A/S exercises off Gibraltar together with 19th Destroyer Flotilla. (17)

24 Nov 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Gibraltar for her 1st storage trip to Malta.

For the daily positions of HMS Olympus during this storage trip see the map below.

(17)

30 Nov 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Malta. (17)

3 Dec 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Malta for the return trip to Gibraltar. (17)

10 Dec 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Gibraltar. (18)

15 Dec 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Gibraltar for her 2nd storage trip to Malta.

For the daily positions of HMS Olympus during this storage trip see the map below.

(12)

21 Dec 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Malta. (12)

26 Dec 1941
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Malta for the return trip to Gibraltar. (12)

2 Jan 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Gibraltar. Olympus returned to Gibraltar with engine defects that required about three weeks to repair. (12)

6 Feb 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) conducted A/S exercises off Gibraltar with HMS Boadicea (Cdr. H.P. Henderson, RN) and HMS Convolvulus (T/Lt. R.C. Connell, RNR) and later with HMS Wivern (Cdr. M.D.C. Meyrick, RN) and HMS Coltsfoot (T/Lt. the Hon. W.K. Rous, RNVR). (19)

7 Feb 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) conducted exercises off Gibraltar. (19)

12 Feb 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Gibraltar for her 3rd storage trip to Malta.

For the daily positions of HMS Olympus during this storage trip see the map below.

(19)

20 Feb 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Malta. (19)

22 Feb 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Malta for the return trip to Gibraltar. (19)

1 Mar 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Gibraltar. (20)

4 Mar 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is docked in No.2 Graving Dock at Gibraltar. (20)

7 Mar 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) is undocked. (20)

12 Mar 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Gibraltar for her 4th storage trip to Malta.

For the daily positions of HMS Olympus during this storage trip see the map below.

(12)

20 Mar 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Malta. (12)

22 Mar 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Malta for the return trip to Gibraltar. (12)

29 Mar 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Gibraltar. (12)

25 Apr 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Gibraltar for her 5th storage trip to Malta. (21)

3 May 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Malta. (21)

8 May 1942
HMS Olympus (Lt.Cdr. H.G. Dymott, RN) departed Malta for the return trip to Gibraltar. She was mined and sunk shortly after her departure. (22)

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