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Destroyer HMS Jupiter (F 85)

31 Aug 1939 (position 0.00, 0.00)
HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) completed her work-up period at Portland and departed from there for Grimsby. (1)

1 Sep 1939 (position 0.00, 0.00)
HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) arrived at Grimsby from Portland. (2)

4 Sep 1939 (position 0.00, 0.00)
HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) arrived at Scapa Flow to fuel. She departed Scapa early the next day to rejoin the 2nd cruiser squadron and her sister ships at sea. (2)

18 Sep 1939 (position 0.00, 0.00)
HMS Glasgow (Capt. F.H. Pegram, RN) conducted exercises off the Firth of Forth during which she was escorted by the destroyers HMS Javelin (Cdr. A.F. Pugsley, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN). (2)

19 Sep 1939 (position 0.00, 0.00)
HMS Glasgow (Capt. F.H. Pegram, RN) conducted exercises off the Firth of Forth during which she was escorted by the destroyers HMS Javelin (Cdr. A.F. Pugsley, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN). (2)

20 Sep 1939 (position 0.00, 0.00)
HMS Southampton (Capt. F.W.H. Jeans, CVO, RN, flying the flag of Vice-Admiral G.F.B. Edward-Collins, CB, KCVO, RN) conducted exercises off the Firth of Forth during which she was escorted by the destroyers HMS Javelin (Cdr. A.F. Pugsley, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN). (2)

24 Sep 1939 (position 0.00, 0.00)
HMS Jervis (Capt. P.J. Mack, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) shifted from the Tyne to Rosyth. (2)

28 Sep 1939
The light cruisers HMS Southampton (Capt. F.W.H. Jeans, CVO, RN, flying the flag of Vice-Admiral G.F.B. Edward-Collins, CB, KCVO, RN) and HMS Glasgow (Capt. F.H. Pegram, RN) conducted exercises off the Firth of Forth during which they were escorted by the destroyers HMS Jervis (Capt. P.J. Mack, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN).

The cruisers returned to port after a local patrol vessel obtained an A/S contact. The destroyers briefly joined the hunt for the supposed submarine but later also returned to port. (2)

29 Sep 1939
The light cruisers HMS Southampton (Capt. F.W.H. Jeans, CVO, RN, flying the flag of Vice-Admiral G.F.B. Edward-Collins, CB, KCVO, RN) and HMS Glasgow (Capt. F.H. Pegram, RN) conducted exercises off the Firth of Forth during which they were escorted by the destroyers HMS Jervis (Capt. P.J. Mack, RN), HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN).

Again the cruisers returned to port after the A/S trawler HMS Amethyst (Ch.Skr. A. Liston, RNR) obtained an A/S contact. The destroyers joined the hunt for the supposed submarine but in the evening they returned to port. (2)

2 Oct 1939
The light cruisers HMS Southampton (Capt. F.W.H. Jeans, CVO, RN, flying the flag of Vice-Admiral G.F.B. Edward-Collins, CB, KCVO, RN) and HMS Glasgow (Capt. F.H. Pegram, RN) conducted exercises off the Firth of Forth during which they were escorted by the destroyers HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN). (3)

2 Oct 1939
Around 1845A/2, the aircraft carrier HMS Furious (Capt. M.L. Clarke, DSC, RN) departed Rosyth for Loch Ewe where she was to join the Home Fleet. She was escorted by the destroyers HMS Jervis (Capt. P.J. Mack, RN), HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN), HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) and HMS Sturdy (Lt.Cdr. G.T. Cooper, RN). (4)

3 Oct 1939
Around 1700A/3, HMS Furious (Capt. M.L. Clarke, DSC, RN), HMS Jervis (Capt. P.J. Mack, RN), HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN), HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) and HMS Sturdy (Lt.Cdr. G.T. Cooper, RN) arrived at Loch Ewe.

The 'J'-class destroyers departed later the same day to return to Rosyth. (4)

4 Oct 1939 (position 0.00, 0.00)
HMS Jervis (Capt. P.J. Mack, RN), HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) arrived at Rosyth. (3)

6 Oct 1939
The light cruisers HMS Southampton (Capt. F.W.H. Jeans, CVO, RN, flying the flag of Vice-Admiral G.F.B. Edward-Collins, CB, KCVO, RN), HMS Glasgow (Capt. F.H. Pegram, RN) and HMS Edinburgh (Capt. F.C. Bradley, RN) and the destroyers HMS Jervis (Capt. P.J. Mack, RN), HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) conducted exercises off the Firth of Forth. (3)

22 Oct 1939 (position 0.00, 0.00)
HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) departed Rosyth for Immingham.

En-route she was diverted to go to the assistance of her sister ship HMS Javelin (Cdr. A.F. Pugsley, RN) which had collided with a merchant vessel.

HMS Jupiter took HMS Javelin in tow until she was relived by a tug after which she screened the tow proceeding to the Humber. (3)

23 Oct 1939 (position 0.00, 0.00)
The destroyers HMS Cossack (Capt. D. de Pass, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) departed Immingham to search for a reported enemy submarine. They did not made contact with the supposed enemy and returned to Immingham later the same day. (3)

24 Oct 1939 (position 0.00, 0.00)
During the night of 24/25 October 1939, HMS Adventure (Capt. A.R. Halfhide, RN), departed Immingham for a minelay off Flamborough Head, During the lay she was escorted by the destroyers HMS Cossack (Capt. D. de Pass, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN). On completion of the lay all ships returned to Immingham.

27 Oct 1939 (position 0.00, 0.00)
During the night of 27/28 October 1939, HMS Adventure (Capt. A.R. Halfhide, RN), departed Immingham for a minelay off Flamborough Head, During the lay she was escorted by the destroyers HMS Cossack (Capt. D. de Pass, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN). On completion of the lay all ships returned to Immingham.

29 Oct 1939
HMS Jervis (Capt. P.J. Mack, RN), HMS Jackal (Cdr. T.M. Napier, RN), HMS Janus (Lt.Cdr. J.A.W. Tothill, RN), HMS Jersey (Lt.Cdr. A.M. McKillop, RN), HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) departed Immingham for operation AG, during which they were to patrol along the Dutch coast.

A German seaplane bombed HMS Jersey but no damage was done to her.

The destroyers returned to Immingham on 30 October. (3)

31 Oct 1939
HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) departed Immingham for convoy escort duty for east coast coastal convoy (FS 29).

At 1330/31, HMS Jupiter was ordered to detach from the convoy she was escorting to search for a reported enemy submarine.

HMS Jupiter returned to Immingham on 1 November 1939. (5)

6 Nov 1939
HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) departed Immingham to provide cover for a coastal convoy (FS 32) and to proceed towards Rosyth at the same time. (6)

7 Nov 1939 (position 0.00, 0.00)
The minelaying cruiser HMS Adventure (Capt. A.R. Halfhide, RN) departed Rosyth for Immingham. Off the Firth of Forth she was joined by the destroyers HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) which were to escort her.

HMS Adventure, HMS Juno and HMS Jupiter arrived at Immingham later the same day. (6)

8 Nov 1939 (position 0.00, 0.00)
At 1700/8, HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) departed Immingham for a night patrol.

They returned to Immingham at 1000/9. (6)

12 Nov 1939
HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) departed Immingham for patrol and to provide cover for convoy FN 35. They returned to Immingham later the same day. (6)

14 Nov 1939 (position 0.00, 0.00)
Around 0530 hours, HMS Jervis (Capt. P.J. Mack, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN), departed Immingham for convoy escort duty.

At sea they joined convoy FN 36 and escorted it until 1730 hours when they set course to return to Immingham arriving there around 2200 hours. (6)

16 Nov 1939
HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) departed Immingham for patrol and to provide cover for convoy FN 37. They returned to Immingham later the same day. (6)

19 Nov 1939
HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) departed Immingham for patrol and convoy cover (FS 39). (6)

20 Nov 1939
In the evening, HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN), returned to Immingham. (6)

25 Nov 1939
Around 1730/25, HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN), departed Immingham for a night patrol.

They returned around noon the following day. (6)

26 Nov 1939
Around 1500/25, HMS Jackal (Cdr. T.M. Napier, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN), departed Immingham for a night patrol.

They returned to Immingham around 1100/27. (6)

29 Nov 1939
Around 1515/29, HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN), departed Immingham for a night patrol.

They returned around 1100/30. In the evening of the 29th they had attacked an A/S contact but this appears to be a bogus contact. (6)

30 Nov 1939 (position 0.00, 0.00)
Around 1500/30, HMS Jersey (Lt.Cdr. A.M. McKillop, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) departed Immingham for patrol.

They returned to Immingham around 1815/1. (7)

3 Dec 1939
Between 1315 and 1350 hours, first HMS Juno (Cdr. W.E. Wilson, RN) and then HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) departed Immingham for patrol and east coast convoy cover (convoy FS 49).

They returned to Immingham around 1930/4. (8)

5 Dec 1939
Around 1500/5, HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN), departed Immingham for a night patrol.

They returned to Immingham around 0930/6. (8)

6 Dec 1939 (position 0.00, 0.00)
HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) departed Immingham to go to the assistance of her torpedoed sister-ship HMS Jersey. HMS Jupiter however returned to Immingham after three hours. (8)

8 Dec 1939
Around 1500/8, HMS Jackal (Cdr. T.M. Napier, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN), departed Immingham for a night patrol.

They returned to Immingham around 1100/9. (8)

10 Dec 1939
Aroud 1600 hours, HMS Jervis (Capt. P.J. Mack, RN), HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN), HMS Janus (Lt.Cdr. J.A.W. Tothill, RN), HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN), departed Immingham for an A/S sweep off the northern Dutch coast. They returned to Immingham shortly before noon on 12 December. (9)

13 Dec 1939 (position 0.00, 0.00)
Aroud 1600 hours, HMS Jervis (Capt. P.J. Mack, RN), HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN), HMS Janus (Lt.Cdr. J.A.W. Tothill, RN), HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN), departed Immingham for an A/S sweep near position 54°55'N, 03°10'E.

14 Dec 1939 (position 0.00, 0.00)
Around 1400 hours, HMS Jervis (Capt. P.J. Mack, RN), HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN), HMS Janus (Lt.Cdr. J.A.W. Tothill, RN), HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN), were back off the Humber.

HMS Jaguar, HMS Janus, HMS Juno and HMS Jupiter then entered the harbour while HMS Jervis remained out for patrol.

15 Dec 1939 (position 0.00, 0.00)
Around 0545 hours, HMS Janus (Lt.Cdr. J.A.W. Tothill, RN) and HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) departed Immingham to rejoin HMS Jervis (Capt. P.J. Mack, RN) at sea which they did around 0745 hours.

HMS Jervis and HMS Jupiter returned to Immingham around 1630 hours. HMS Janus remained on patrol during the night returning to Immingham the following morning.

16 Dec 1939 (position 0.00, 0.00)
HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) shifted from Immingham to Hull where she was to be taken in hand for repairs and refit. (8)

17 Dec 1939 (position 0.00, 0.00)
HMS Jupiter (Lt.Cdr. D.B. Wyburd, RN) is docked at Hull. (8)

3 Jan 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) is undocked. (10)

4 Jan 1940 (position 0.00, 0.00)
With her refit and repairs completed, HMS Jupiter (Cdr. D.B. Wyburd, RN), shifted from Hull to Immingham. (10)

8 Jan 1940 (position 0.00, 0.00)
Around 1545/8, HMS Javelin (Cdr. A.F. Pugsley, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN), departed Immingham for a night patrol. HMS Jupiter returned to Immingham around 1000/9. HMS Javelin remained at sea until around 1700/9 when she too returned to Immingham. (10)

9 Jan 1940 (position 0.00, 0.00)
Around 1530/9, HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN), departed Immingham for a night patrol.

HMS Jaguar returned to Immingham around 0945/10.

HMS Jupiter returned to Immingham around 1700/10. (10)

11 Jan 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) is docked at Immingham for repairs to her feed water tanks. (10)

13 Jan 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) is undocked in the afternoon.

At 2230 hours, HMS Jupiter departed Immingham for Harwich where she arrived shortly before noon the following day. (10)

15 Jan 1940
Around 1100/15, the destroyers HMS Grafton (Cdr. M.S. Thomas, RN), HMS Griffin (Lt.Cdr. J. Lee-Barber, RN) and Blyskawica (Lt. J. Umecki), departed Harwich to make a sweep off the Dutch coast (Operation ST 2) during the night of the 15th/16th.

During this operation cover was provided by the 7th Destroyer Flottilla; HMS Jervis (Capt. P.J. Mack, RN), HMS Jackal (Cdr. T.M. Napier, RN), HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN), HMS Janus (Cdr. J.A.W. Tothill, RN), HMS Javelin (Cdr. A.F. Pugsley, RN), HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN). These destroyers departed Harwich around 1500/15.

HMS Grafton, HMS Griffin and ORP Blyscawica returned to Harwich around 1500/16. During the operation one Latvian merchant vessel had been ordered to proceed to the U.K. for inspection.

The 7th Destroyer Flotilla had already returned to Harwich around 0915/16.

18 Jan 1940
Around 1530/18, HMS Jervis (Capt. P.J. Mack, RN), HMS Jackal (Cdr. T.M. Napier, RN), HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN), HMS Janus (Cdr. J.A.W. Tothill, RN), HMS Javelin (Cdr. A.F. Pugsley, RN), HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN), departed Harwich for a sweep along the Dutch coast. They returned to Harwich shortly before noon the following day.

19 Jan 1940 (position 0.00, 0.00)
Around 1600/19, HMS Jupiter (Cdr. D.B. Wyburd, RN), departed Harwich for Immingham. She arrived at Immingham around 0815/20. (10)

26 Jan 1940 (position 0.00, 0.00)
HMS Jervis (Capt. P.J. Mack, RN), HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Immingham for a sweep of the south-west coast of Norway.

29 Jan 1940

Convoy HN 9B.

This convoy was formed near Bergen, Norway on 29 January 1940. It arrived at Methill on 2 February 1940.

This convoy was made up of the following merchant vessels; Agne (Swedish, 2468 GRT, built 1917), Anu (Estonian, 1421 GRT, built 1883), Aspen (Swedish, 1305 GRT, built 1918), Audun (Norwegian, 1304 GRT, built 1925), Balticia (Swedish, 1966 GRT, built 1905), Baron Kelvin (British, 3081 GRT, built 1924), Bessheim (Norwegian, 1774 GRT, built 1912), Bifrost (Swedish, 1781 GRT, built 1923), Elgo (Swedish, 1888 GRT, built 1918), Falkvik (Swedish, 1216 GRT, built 1899), Finlandia (Finnish, 1464 GRT, built 1920), Frans (Swedish, 1169 GRT, built 1924), Fritz S. (Finnish, 1475 GRT, built 1907), Gundborg Segrell (Swedish, 1435 GRT, built 1914), Hague (British, 974 GRT, built 1919), Ibis (Norwegian, 1367 GRT, built 4*4/), Jernland (Norwegian, 1289 GRT, built 1905), Kis (Norwegian, 1249 GRT, built 1915), Log (Norwegian, 1560 GRT, built 1931), Marita (Finnish, 1869 GRT, built 1923), Mimona (Norwegian, 1147 GRT, built 1919), Nicke (Swedish, 1170 GRT, built 1918), Oddevold (Swedish, 1186 GRT, built 1883), Ostrobotnia (Finnish, 2335 GRT, built 1921), Pollux (Estonian, 931 GRT, built 1890), Thore Hafte (Norwegian, 626 GRT, built 1896), Uriana (Panamanian, 1953 GRT, built 1902), Vestra (British, 1141 GRT, built 1921) and Vina (British, 1021 GRT, built 1894).

Escort was provided by the destroyers HMS Jervis (Capt. P.J. Mack, RN), HMS Juno (Cdr. W.E. Wilson, RN), HMS Jupiter (Cdr. D.B. Wyburd, RN) and HMS Imperial (Lt.Cdr. C.A.de W. Kitcat, RN).

2 Feb 1940
HMS Jervis (Capt. P.J. Mack, RN), HMS Juno (Cdr. W.E. Wilson, RN), HMS Jupiter (Cdr. D.B. Wyburd, RN) and HMS Imperial (Lt.Cdr. C.A.de W. Kitcat, RN) arrived at Rosyth from convoy escort duty. (11)

4 Feb 1940 (position 0.00, 0.00)
HMS Jervis (Capt. P.J. Mack, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Rosyth for patrol upon completion of which they were to proceed to Immingham.

5 Feb 1940 (position 0.00, 0.00)
HMS Jervis (Capt. P.J. Mack, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) arrived at Immingham from patrol.

7 Feb 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) collided with HMS Janus (Cdr. J.A.W. Tothill, RN) in the Humber. Damage to HMS Juno was not serious and took two days to repair.

HMS Jupiter departed the Humber to join a northbound coastal convoy as additional escort (FN 87).

9 Feb 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) arrived at Rosyth from convoy escort duty. (12)

10 Feb 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Rosyth for east coast convoy escort duty. (11)

13 Feb 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) returned to Rosyth after east coast convoy escort duty. (She had been part of the escort of two southbound convoy's and one northbound convoy.)

Apparently she departed later this day or early the next day for Immingham (Humber). (11)

15 Feb 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) arrived at the Humber for boiler cleaning and the fitting of degaussing equipment. (11)

2 Mar 1940 (position 0.00, 0.00)
HMS Jervis (Capt. P.J. Mack, RN), HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) departed the Humber for Rosyth.

En-route they performed escort duties with east coast convoy's. (12)

3 Mar 1940
HMS Jervis (Capt. P.J. Mack, RN), HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) all arrived at Rosyth after convoy escort duties. (12)

4 Mar 1940

Convoy ON 17A.

This convoy was formed off Methil on 4 March 1940. It arrived in Norwegian waters near Bergen on 8 March 1940.

This convoy was made up of the following merchant vessels; Almora (Norwegian, 2433 GRT, built 1905), Ardanbhan (British, 4980 GRT, built 1929), Ardun (Norwegian, 1304 GRT, built 1925), Balticia (Swedish, 1966 GRT, built 1905), Banian (Norwegian, 1581 GRT, built 1912), Bolette (Norwegian, 1167 GRT, built 1920), Bore (Swedish, 1216 GRT, built 1910), Briarwood (British, 4019 GRT, built 1930), Brisk (Norwegian, 1594 GRT, built 1923), Dagmar Bratt (Swedish, 1421 GRT, built 1920), Dahlia (Swedish, 1057 GRT, built 1907), Ena de Larrinaga (British, 5200 GRT, built 1925), Erica (Norwegian, 1592 GRT, built 1919), Eros (Norwegian, 974 GRT, built 1922), Frisia (Swedish, 1059 GRT, built 1909), Gottfird (Finnish, 1592 GRT, built 1899), Heilo (Norwegian, 989 GRT, built 1921), Helny (Finnish, 1506 GRT, built 1886), Julia (Estonian, 1892 GRT, built 1906), Kare (Swedish, 1202 GRT, built 1902), Karen (Norwegian, 750 GRT, built 1900), King Alfred (British, 5272 GRT, built 1919), Komet (Norwegian, 1147 GRT, built 1912), Margareta (British, 3103 GRT, built 1904), Margareta (Finnish, 1860 GRT, built 1919), Nina (Norwegian, 1371 GRT, built 1917), Oinas (Finnish, 1423 GRT, built 1910), Ostrobotnia (Finnish, 2335 GRT, built 1921), Otto (Estonian, 1959 GRT, built 1918), Rex (Swedish, 1013 GRT, built 1877), Rigel (Norwegian, 3828 GRT, built 1924), Sedgepool (British, 5556 GRT, built 1918), Sjofna (Norwegian, 619 GRT, built 1918), Stargard (Norwegian, 1113 GRT, built 1915), Tautra (Norwegian, 1749 GRT, built 1920), Tilda (Finnish, 2768 GRT, built 1903), Tora (Norwegian, 851 GRT, built 1918), Toran (Norwegian, 3318 GRT, built 1918), Tyra Bratt (Swedish, 1301 GRT, built 1923), Uranus (Estonian, 1329 GRT, built 1906) and Vaga (Norwegian, 1612 GRT, built 1924).

Escort was provided by HMS Jervis (Capt. P.J. Mack, RN), HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN), HMS Janus (Cdr. J.A.W. Tothill, RN), HMS Juno (Cdr. W.E. Wilson, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN). HMS Juno later had to be detached to return to Rosyth with defects.

Later, at sea, the convoy was joined by the AA cruiser HMS Calcutta (Capt. H.A. Packer, RN).

Cover for the convoy was provided by the light cruisers HMS Edinburgh (Capt. F.C. Bradley, RN) and HMS Arethusa (Capt. Q.D. Graham, RN).

9 Mar 1940
HMS Jervis (Capt. P.J. Mack, RN) and HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) followed later by HMS Janus (Cdr. J.A.W. Tothill, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) arrived at Rosyth after convoy escort duty. (13)

10 Mar 1940 (position 0.00, 0.00)
Either late on 10 March or early on 11 March, HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Rosyth for Blyth. (13)

11 Mar 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) arrived at Blyth. She departed again later the same day escorting the blockship Juniata (1139 GRT, built 1918) to Methil together with several A/S trawlers. The blockship was being towed by the tug Krooman and was on passage to Scapa Flow where it was to be sunk. (13)

12 Mar 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) returned to Rosyth from escort duties. (13)

18 Mar 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Rosyth for escort duty with east coast coastal convoy TM 29. She returned to Rosyth the following day. (14)

19 Mar 1940

Convoy ON 21.

This convoy was formed off Methil on 19 March 1940. It arrived in Norwegian waters near Bergen on 23 March 1940.

This convoy was made up of the following merchant vessels; Arnold Bratt (Swedish, 1430 GRT, built 1925), Aslaug (Danish, 1509 GRT, built 1927), Blaafjeld I (Norwegian, 1146 GRT, built 1918), Borgsten (Norwegian, 1569 GRT, built 1922), City of Rangoon (British, 6635 GRT, built 1914), Consul Bratt (Swedish, 1117 GRT, built 1913), Cresco (Norwegian, 1270 GRT, built 1916), Cygnus (Norwegian, 1333 GRT, built 1921), Cyril (Danish, 2116 GRT, built 1925), Dunvegan Head (British, 638 GRT, built 1920), Ella (Swedish, 690 GRT, built 1909), Erling Lindoe (Norwegian, 1281 GRT, built 1917), Fanefjeld (Norwegian, 1354 GRT, built 1920), Ferrum (Finnish, 2089 GRT, built 1918), Gol (Norwegian, 985 GRT, built 1920), Halse (Norwegian, 2136 GRT, built 1910), Havorn (Norwegian, 1527 GRT, built 1902), Homeside (British, 4617 GRT, built 1924), Island (Norwegian, 638 GRT, built 1918), Kronprins Olav (Danish, 2083 GRT, built 1937), Lake Lucerne (Estonian, 2317 GRT, built 1909), Log (Norwegian, 1560 GRT, built 1931), Narvik (Swedish, 4251 GRT, built 1914), Ophir (Norwegian, 1005 GRT, built 1906), Otterpool (British, 4876 GRT, built 1926), Peet (Estonian, 2111 GRT, built 1913), Porsanger (Norwegian, 4267 GRT, built 1918), Royal (Norwegian, 759 GRT, built 1918), Spica (Norwegian, 500 GRT, built 1915), Stig Gorthon (Swedish, 2241 GRT, built 1924), Svinta (Norwegian, 1267 GRT, built 1916), Thistlebrae (British, 4747 GRT, built 1928), Tora Elise (Norwegian, 721 GRT, built 1919), Ursa (Norwegian, 958 GRT, built 1911), Utklippan (Swedish, 1599 GRT, built 1883), Varegg (Norwegian, 943 GRT, built 1910), Varmido (Swedish, 2956 GRT, built 1901), Wanda (Finnish, 1902 GRT, built 1897) and Wiides (Finnish, 2324 GRT, built 1904).

Some of these ships sailed from Kirkwall and joined the convoy at sea.

Escort was provided by the destroyers HMS Janus (Cdr. J.A.W. Tothill, RN), HMS Javelin (Cdr. A.F. Pugsley, RN), HMS Jupiter (Cdr. D.B. Wyburd, RN), HMS Eclipse (Lt.Cdr. I.T. Clark, RN) and the submarine HMS Porpoise (Cdr. P.Q. Roberts, RN). The destoyer HMS Ivanhoe (Cdr. P.H. Hadow, RN) joined at sea coming with the Kirkwall section.

On 20 March the AA cruiser HMS Cairo (Capt. P.V. McLaughlin, RN) joined the convoy.

On 21 the destroyer HMS Jupiter was relieved by the destroyer HMS Juno (Cdr. W.E. Wilson, RN) which had departed from Scapa Flow. HMS Jupiter then proceeded to Scapa Flow arriving later on 21 March. She had to be relieved due to defects.

21 Mar 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) arrived at Scapa Flow with condensor trouble. She had been relieved from the escort of convoy ON 21 due to this. (11)

31 Mar 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Scapa Flow to rendez-vous with HMS Griffin (Lt.Cdr. J. Lee-Barber, RN) which is already on patrol in the Moray Firth.

The patrol was discontinued on 1 April due to heavy weather. HMS Jupiter then returned to Scapa Flow while HMS Griffin proceeded to Invergordon.

2 Apr 1940 (position 0.00, 0.00)
Around 0100 hours the destroyers HMS Inglefield (Capt. P. Todd, RN), HMS Imogen (Cdr. C.L. Firth, MVO, RN), HMS Isis (Cdr. J.C. Clouston, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Scapa Flow to search for a reported damaged enemy submarine in the Moray Firth. The A/S hunt was not succesful and the destroyers returned to Scapa Flow early in the evening.

3 Apr 1940 (position 0.00, 0.00)
Around 2100/2, a report was received that a westbound German submarine had been sighted in position 59°10'N, 01°40'W a little over half an hour before.

To intercept this submarine the destroyer HMS Mohawk (Cdr. J.W.M. Eaton, RN) was detached from convoy HN 23A and the destroyer HMS Jupiter (Cdr. D.B. Wyburd, RN) was sailed from Scapa Flow. They were to arrive in position 59°23'N, 04°55'W by 0600/3.

The submarine was not sighted and the destroyers were ordered to proceed to Scapa Flow around 1200/3 as they were required for other duties.

5 Apr 1940

Convoy ON 25.

This convoy was formed off Methil on 5 April 1940. It was recalled on 8 April 1940.

This convoy was made up of the following merchant vessels; Ascania (Finnish, 838 GRT, built 1901), Begonia (Estonian, 1591 GRT, built 1890), Bertha (Danish, 966 GRT, built 1915), Bullaren (Swedish, 5722 GRT, built 1918), Caledonia (Swedish, 1268 GRT, built 1913), Cree (British, 4791 GRT, built 1920), Dalveen (British, 5193 GRT, built 1927), Delaware (Finnish, 2441 GRT, built 1902), Diana (Norwegian, 1154 GRT, built 1904), Einvik (Norwegian, 2000 GRT, built 1918), Eros (Norwegian, 974 GRT, built 1922), Forsvik (Norwegian, 1248 GRT, built 1919), Frey (Swedish, 1090 GRT, built 1911), Haga (Swedish, 1296 GRT, built 1918), Helder (Dutch, 3629 GRT, built 1920), Hjalmar Wessel (Norwegian, 1742 GRT, built 1935), Ibis (Norwegian, 1367 GRT, built 1918), Inger (Norwegian, 1409 GRT, built 1930), Lotte (Danish, 1420 GRT, built 1906), Magdalena (Swedish, 1265 GRT, built 1882), Magrix (British, 454 GRT, built 1938), Mette (Danish, 1909 GRT, built 1926), Nordost (Swedish, 1035 GRT, built 1918), Nyanza (British, 4974 GRT, built 1928), Orangemoor (British, 5775 GRT, built 1923), Roy (Norwegian, 1768 GRT, built 1921), Sjofna (Norwegian, 619 GRT, built 1918), Sophie (Danish, 945 GRT, built 1920), Swainby (British, 4935 GRT, built 1935), Vard (Norwegian, 681 GRT, built 1917), Veli Ragnar (Finnish, 2158 GRT, built 1914) and Vestland (Norwegian, 1934 GRT, built 1916).

On departure from Methil the convoy was escorted by the destroyers HMS Javelin (Cdr. A.F. Pugsley, RN), HMS Juno (Cdr. W.E. Wilson, RN), HMS Grenade (Cdr. R.C. Boyle, RN), HMS Eclipse (Lt.Cdr. I.T. Clark, RN) and the submarine HMS Thistle (Lt.Cdr. W.F. Haselfoot, RN). The light cruisers HMS Manchester (Capt. H.H. Bousfield, RN), HMS Southampton (Capt. F.W.H. Jeans, CVO, RN) and the AA cruiser HMS Calcutta (Capt. D.M. Lees, RN) provided close cover.

On 6 April the following ships departed Kirkwall to join convoy ON 25 at sea;
Bullaren (Swedish, 5722 GRT, built 1918), C.F. Liljevalch (Swedish, 5492 GRT, built 1920), Elna E. (British, 1174 GRT, built 1925), Imperial Valley (British, 4573 GRT, built 1924), North Devon (British, 3658 GRT, built 1924), Ringulv (Norwegian, 5153 GRT, built 1903), Sarpfoss (Norwegian, 1493 GRT, built 1919), Solhavn (Norwegian, 1630 GRT, built 1918), Stanja (Norwegian, 1845 GRT, built 1915), Star (Norwegian, 1531 GRT, built 1922), Topdalsfjord (Norwegian, 4271 GRT, built 1921) and Wappu (Finnish, 1513 GRT, built 1930).

On departure from Kirkwall this part of the convoy was escorted by the destroyers HMS Janus (Cdr. J.A.W. Tothill, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) which had come from Scapa Flow.

On joining the main convoy, HMS Janus joined the escort but HMS Jupiter was detached to search for the drifter HMS Seabreeze which was in trouble due to heavy weather and had made an SOS. This was later cancelled when a trawler met the Seabreeze and HMS Jupiter proceeded to Scapa Flow arriving there on the 7th.

In the evening of the 7th the convoy was disbanded an the ships were ordered to return to the U.K. due to enemy activity in the North Sea. The escorts were detailed for other duty.

6 Apr 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Scapa Flow for escort duty.

[See the event ' Convoy ON 25 ' for 5 April 1940 for more info.]

7 Apr 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) returned to Scapa Flow from escort duty.

She departed again later the same day escorting the French light cruiser Emile Bertin (Capt. R.M.J. Battet) and the large destroyers Maille Breze (Cdr. H.M.E.A. Glotin) and Tartu (Capt. J.M. Chomel) in.

10 Apr 1940 (position 0.00, 0.00)
Around 1530 hours the destroyers HMS Jupiter (Cdr. D.B. Wyburd, RN), HMS Afridi (Capt. P.L. Vian, RN), HMS Mashona (Cdr. W.H. Selby, RN), HMS Mohawk (Cdr. J.W.M. Eaton, RN), HMS Somali (Capt. R.S.G. Nicholson, DSO, DSC, RN), HMS Electra (Lt.Cdr. S.A. Buss, MVO, RN), HMS Escapade (Cdr. H.R. Graham, RN), HMS Brazen (Lt.Cdr. M. Culme-Seymour, RN) and HMS Codrington (Capt. G.E. Creasy, MVO, RN) arrived at Sullom Voe to fuel. (15)

13 Apr 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Sullom Voe for Scapa Flow where she arrived at 1100 hours the same day. (15)

15 Apr 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Scapa Flow at 1045 hours for Skjelfjord. She had on board pumps for the damaged light cruiser HMS Penelope (Capt. G.D. Yates, RN). (15)

17 Apr 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) arrived in the Skjelfjord where the pumps for the damaged light cruiser HMS Penelope (Capt. G.D. Yates, RN) were unloaded. (16)

18 Apr 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed the Skjelfjord and proceeded to sea to patrol in the Vestfjord area. (16)

20 Apr 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) returned to Skjelfjord to fuel.

20 Apr 1940 (position 0.00, 0.00)
The tanker British Lady (6098 GRT, built 1923) departed Skjelfjord for Scapa Flow. She was escorted by the destroyers HMS Hotspur (Cdr. H.F.H. Layman, RN), HMS Punjabi (Cdr. J.T. Lean, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN). (15)

23 Apr 1940 (position 0.00, 0.00)
The tanker British Lady (6098 GRT, built 1923) and her escort, the destroyers HMS Hotspur (Cdr. H.F.H. Layman, RN), HMS Punjabi (Cdr. J.T. Lean, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) arrived at Scapa Flow. (15)

24 Apr 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Scapa Flow at 0800 hours to search for a missing Walrus aircraft. The search was unsuccessful and HMS Jupiter returned to Scapa Flow around dusk. (15)

26 Apr 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Scapa Flow at 0600 for Lerwick with dynamo spares for the damaged destroyer HMS Eclipse (Lt.Cdr. I.T. Clark, RN).

Later the dame day HMS Jupiter departed Kirkwall at 1800 hours escorting the merchant ship Manchester City (5600 GRT, built 1937) to the Tyne. (15)

27 Apr 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) arrived at the Tyne escorting the merchant vessel Manchester City (5600 GRT, built 1937).

HMS Jupiter was then taken in hand for refit. (11)

21 Jun 1940 (position 0.00, 0.00)
HMS Javelin (Cdr. A.F. Pugsley, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Immingham for patrol. (17)

23 Jun 1940 (position 0.00, 0.00)
HMS Javelin (Cdr. A.F. Pugsley, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) returned to Immingham from patrol. (17)

29 Jun 1940 (position 0.00, 0.00)
HMS Javelin (Cdr. A.F. Pugsley, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) returned to Immingham from patrol. (17)

3 Jul 1940 (position 0.00, 0.00)
HMS Javelin (Cdr. A.F. Pugsley, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) returned to Immingham from patrol. (17)

5 Jul 1940 (position 0.00, 0.00)
HMS Javelin (Cdr. A.F. Pugsley, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Immingham for patrol. (17)

7 Jul 1940 (position 0.00, 0.00)
HMS Javelin (Cdr. A.F. Pugsley, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) returned to Immingham from patrol. (17)

9 Jul 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) and HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) departed Immingham for patrol 'U' and east coast convoy (FN 218) duty.

During the night of 9/10 July, they were reinforced on their patrol by the light cruiser HMS Galatea (Capt. B.B. Schofield, RN, flying the flag of Rear-Admiral A.T.B. Curteis, CB, RN) which had departed Immingham around 1945A/9 and returned there around 0630A/10. (17)

11 Jul 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) and HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) returned to Immingham from patrol.

HMS Jupiter and HMS Kashmir (Cdr. H.A. King, RN) departed Immingham later the same day to reinforce patrol 'U'. (17)

12 Jul 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) and HMS Kashmir (Cdr. H.A. King, RN) returned to Immingham from patrol. (17)

13 Jul 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Immingham to reinforce patrol 'U'. (17)

14 Jul 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) returned to Immingham from patrol. (17)

21 Jul 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) and HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) departed Immingham for patrol 'U'. (17)

23 Jul 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) and HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) returned to Immingham from patrol. (17)

24 Jul 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Immingham to reinforce patrol 'U'. (17)

25 Jul 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) returned to Immingham from patrol.

Later the same day she departed Immingham to reinforce patrol 'U' once again. (17)

26 Jul 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) returned to Immingham from patrol. (17)

27 Jul 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) and HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) departed Immingham for patrol 'U'. (17)

29 Jul 1940 (position 0.00, 0.00)
HMS Jackal (Cdr. T.M. Napier, RN), HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) and HMS Jupiter (Cdr. D.B. Wyburd, RN) returned to Immingham from patrol. (17)

30 Jul 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Immingham to reinforce HMS Javelin (Cdr. A.F. Pugsley, RN), HMS Kashmir (Cdr. H.A. King, RN) which were already on patrol. (17)

2 Aug 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) returned to Immingham from patrol. (11)

5 Aug 1940
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Immingham for patrol 'U' relieving HMS Jaguar (Lt.Cdr. J.F.W. Hine, RN) which then proceeded to Immingham.

HMS Javelin (Cdr. A.F. Pugsley, RN) remained on patrol now with HMS Jupiter but they were recalled to Immingham later the same day as patrol 'U' was discontinued. (11)

17 Aug 1940
HMS Jackal (Cdr. T.M. Napier, RN, with Capt. L.F.A.V.N. Mountbatten, GCVO, RN = Capt.(D.5) on board), HMS Jupiter (Cdr. D.B. Wyburd, RN) and HMS Kelvin (Cdr. J.H. Allison, DSO, RN) conducted exercises off the Humber.

On their return to harbour HMS Kelvin commenced boiler cleaning. (17)

26 Aug 1940 (position 0.00, 0.00)
HMS Jackal (Cdr. T.M. Napier, RN, with Capt. L.F.A.V.N. Mountbatten, GCVO, RN = Capt.(D.5) on board), HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Immingham for night exercises. They returned to Immingham the following day. (18)

29 Sep 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) departed Immingham for Rosyth. (17)

30 Sep 1940 (position 0.00, 0.00)
HMS Jupiter (Cdr. D.B. Wyburd, RN) arrived at Rosyth. (11)

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