Tenth Submarine Flotilla (Royal Navy)

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The Tenth Submarine Flotilla was a formation of submarines of the Royal Navy.

History

The flotilla was created in November or December of 1914, using a depot ship and three submarines pared off of the Seventh Submarine Flotilla, though it may have existed as early as August, when Rear-Admiral Arthur Henry Christian's new Southern Force was formed, initially or eventually claiming the support of the Tenth Submarine Flotilla out of Harwich under Commodore [Roger John Brownlow Keyes, First Baron Keyes|Keyes]] in operations to protect the Belgian coast.[1]

December, 1914

The roster is comprised of ships taken from the Seventh Flotilla. It would, like the Seventh, operate initially in Home and Atlantic Waters.[2][3]

Serving in Home and Atlantic Waters
Depot Ship
Alecto
Submarines
C 19 C 20 C 21

January, 1915

Alecto has left for the Eighth Submarine Flotilla. To replace her, Forth has joined from the Third Submarine Flotilla.

Meanwhile, the submarine strength continues to grow at the expense of the Seventh Submarine Flotilla, as C 28, C 29 and C 30 have arrived to bring the strength here to a depot ship and six submarines.[4][5]

Serving in Home and Atlantic Waters
Depot Ship
Forth
Submarines
C 19 C 20 C 21 C 28 C 29 C 30

March, 1915

The powers-that-be are still struggling to find the proper balance between the two flotillas, as now C 19 and C 20 have been sent back to the Seventh Submarine Flotilla. The strength here is now one depot ship and four submarines.[6]

Serving in Home and Atlantic Waters
Depot Ship
Forth
Submarines
  C 21 C 28 C 29 C 30

This roster would apply until June.[7]

June, 1915

W 1 has joined from the Sixth Submarine Flotilla, and W 2 from some undiscovered posting. The strength here is now one depot ship and six submarines.[8][9]

Designated as a Patrol Flotilla
Depot Ship
Forth
Submarines
C 21 C 28 C 29 C 30 W 1 W 2

This roster would apply until October.[10]

October, 1915

C 29 has been removed, having been lost to a mine on 29 August. The strength is now one depot ship and five submarines.[11]

Designated as a Patrol Flotilla (until January 1916)
Under Rear-Admiral Commanding East Coast of England (thereafter)
Depot Ship
Forth
Submarines
C 21 C 28 C 30 W 1 W 2

Beginning in November, Forth would be designated as "Parent Ship", if that designation has any distinct meaning. This roster would apply until March, 1916.[12]

March, 1916

W 3 has been joined from some unknown prior assignment, bringing the strength back to one depot ship and six submarines.[13]

Under Rear-Admiral Commanding East Coast of England
Parent Ship
Forth
Submarines
C 21 C 28 C 30 W 1 W 2 W 2

It was noted in July, 1916 that Vulcan was to be coming from the Seventh Submarine Flotilla to relieve Forth as parent ship.[14]

August, 1916

Vulcan has arrived from the Seventh Submarine Flotilla. Forth has gone to the Eighth Submarine Flotilla while submarines D 1 and D 6 have come from that flotilla. C 28 and C 30 have moved out to join the Fourth Submarine Flotilla and the "W" class boats have all departed, as they have been given to Italy. The flotilla is now one depot ship and three submarines.[15][16][17]

Under Rear-Admiral Commanding East Coast of England
Parent Ship
Vulcan
Submarines
C 21 D 1 D 6

September, 1916

The vessels of the flotilla are re-designated as the Third Submarine Flotilla, retaining the same posting, and the Flotilla designated as the Tenth is a new one supporting the Grand Fleet alongside the Eleventh Submarine Flotilla. Termagant has come to assist from the Tenth Destroyer Flotilla. E 44 may be new in service. G 8 has been filched from the Eighth Submarine Flotilla, G 10 from the Eleventh Submarine Flotilla, and the other "G" submarines are probably new in service. The flotilla is now one depot ship, a destroyer and seven modern submarines.[18][19]

Supporting the Grand Fleet
Parent Ship
Lucia
Destroyer
Termagant
Submarines
G 7 G 8 G 9 G 10 G 11 G 12
E 44

October, 1916

E 44 has left to join the Ninth Submarine Flotilla. Lucia now bears a Captain (S). The flotilla is now one depot ship, a destroyer and six modern submarines.[20]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyer
Termagant
Submarines
G 7 G 8 G 9 G 10 G 11 G 12

November, 1916

E 44 has been stolen back from the Ninth Submarine Flotilla, and E 39 has also joined from an undiscovered posting. The new G 13 has also joined. Destroyer Medea, recently of the Tenth Destroyer Flotilla, has also come to help. The flotilla is now one depot ship, two destroyers and nine modern submarines.[21][22]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Termagant
Submarines
G 7 G 8 G 9 G 10 G 11 G 12
G 13 E 39 E 44

This roster would apply until January, 1917.[23]

January, 1917

E 49 has joined, possibly newly in service. The flotilla is now one depot ship, two destroyers and ten modern submarines.[24]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Termagant
Submarines
G 7 G 8 G 9 G 10 G 11 G 12
  G 13 E 39 E 44 E 49

This roster would apply until April.[25]

March, 1917

On 10 March, G 13, recently detached to patrol northern U-boat routes, sank UC 43 north of Muckle Flugga.[26]

April, 1917

E 49 has been dropped, having been lost to a mine on 12 March. The flotilla is now one depot ship, two destroyers and nine modern submarines.[27]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Termagant
Submarines
G 7 G 8 G 9 G 10 G 11 G 12
G 13 E 39 E 44

This roster would apply until July, 1917.[28]

July, 1917

C 19, C 22 and C 34, formerly of the Ninth Submarine Flotilla are now listed as "tenders temporarily to Lucia", and they are intended to help the flotilla in its anti-submarine work in the Fair Island channel.[29] {UK-C34}} was to quickly succeed in this work, torpedoing U 52 off Fair Island on 19 July. E 40, new in service, has also joined. The flotilla is now one depot ship, two destroyers and ten (or thirteen) submarines.[30][31]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Termagant
Submarines
C 19* C 22* C 34*
G 7 G 8 G 9 G 10 G 11 G 12
  G 13 E 39 E 40 E 44

August, 1917

C 34 has been dropped, lost to a torpedo on 21 July. The flotilla is now one depot ship, two destroyers and ten (or twelve) submarines.[32]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Termagant
Submarines
C 19* C 22*
G 7 G 8 G 9 G 10 G 11 G 12
  G 13 E 39 E 40 E 44

September, 1917

The newly commissioned submarines E 27 and G 14 have joined. The flotilla is now one depot ship, two destroyers and twelve (or fourteen) submarines.[33]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Termagant
Submarines
C 19* C 22*
G 7 G 8 G 9 G 10 G 11 G 12
G 13 G 14 E 27 E 39 E 40 E 44

October, 1917

The "C" class submarines have been sent to join the Third Submarine Flotilla.

The flotilla is now one depot ship, two destroyers and twelve submarines.[34]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Termagant
Submarines
G 7 G 8 G 9 G 10 G 11 G 12
G 13 G 14 E 27 E 39 E 40 E 44

November, 1917

G 9 has been dropped, having been lost on 16 September. Termagant has been exchanged for Mohawk from the Sixth Destroyer Flotilla.

The flotilla is now one depot ship, two destroyers and eleven submarines.[35][36][37]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Mohawk
Submarines
G 7 G 8 G 10 G 11 G 12
G 13 G 14 E 27 E 39 E 40 E 44

December, 1917

E 44 has left to join the Ninth Submarine Flotilla and G 6 has arrived from the Eleventh Submarine Flotilla.

The flotilla is now one depot ship, two destroyers and eleven submarines.[38][39]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Mohawk
Submarines
G 6 G 7 G 8 G 10 G 11 G 12
G 13 G 14 E 27 E 39 E 40

This roster would apply until February, 1918.[40]

February, 1918

Two submarines have been dropped: G 8 was lost on 14 January and G 14 has left to join the Sixth Submarine Flotilla.

The flotilla is now one depot ship, two destroyers and nine submarines.[41][42]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Mohawk
Submarines
G 6 G 7 G 10 G 11 G 12 G 13
E 27 E 39 E 40

This roster would apply until June.[43]

June, 1918

E 33, E 42 and E 44 have joined from the Ninth Submarine Flotilla.

The flotilla is now one depot ship, two destroyers and twelve submarines.[44][45]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Mohawk
Submarines
G 6 G 7 G 10 G 11 G 12 G 13
E 27 E 33 E 39 E 40 E 42 E 44

July, 1918

L 11 and L 12, seemingly new to the service, and L 16 from the Eleventh Submarine Flotilla have joined.

The flotilla is now one depot ship, two destroyers and fifteen submarines.[46][47]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Mohawk
Submarines
G 6 G 7 G 10 G 11 G 12 G 13
E 27 E 33 E 39 E 40 E 42 E 44
L 11 L 12 L 16

August, 1918

G 10 has been sent to the Eleventh Submarine Flotilla.

The flotilla is now one depot ship, two destroyers and fourteen submarines.[48]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Mohawk
Submarines
G 6 G 7 G 11 G 12 G 13
E 27 E 33 E 39 E 40 E 42 E 44
L 11 L 12 L 16

This roster would apply until some time between September and November.

November, 1918

G 7 has been dropped, sunk on 1 November.

The flotilla is now one depot ship, two destroyers and thirteen submarines.[49]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Mohawk
Submarines
  G 6 G 11 G 12 G 13
E 27 E 33 E 39 E 40 E 42 E 44
L 11 L 12 L 16

December, 1918

Mohawk is paid off. G 6 has left to some unknown assignment, as has G 11, which wrecked on 22 November. L 55 has joined, new in service.

The flotilla is now one depot ship, two destroyers and twelve submarines.[50][51]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyers
Medea Mohawk*
Submarines
E 27 E 33 E 39 E 40 E 42 E 44
G 12 G 13
  L 11 L 12 L 16 L 55

January, 1919

Mohawk has been removed, to appear in February as being at a Home Port or other base temporarily, and L 20 has been added, but she will only arrive "shortly".

The flotilla is now one depot ship, two destroyers and twelve submarines with one more coming.[52][53][54]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyer
Medea
Submarines
E 27 E 33 E 39 E 40 E 42 E 44
G 12 G 13
L 11 L 12 L 16 L 20* L 55

February, 1919

The sloop Spearmint has arrived like a breath of fresh air. L 20 has still not arrived.

The flotilla is now one depot ship, two destroyers and twelve submarines with one more coming.[55]

Supporting the Grand Fleet
Flagship, Captain (S)
Lucia
Destroyer
Medea
Sloop
Spearmint
Submarines
E 27 E 33 E 39 E 40 E 42 E 44
G 12 G 13
L 11 L 12 L 16 L 20* L 55

March, 1919

The flotilla is re-designated the Seventh Submarine Flotilla.

Disestablished
Not to be re-instituted during the Dreadnought Era[Fact Check]

Captains (S)

Dates of appointment given:

Footnotes

  1. See Southern Force (Royal Navy).
  2. Supplement to the Monthly Navy List. (December, 1914). p. 14.
  3. Supplement to the Monthly Navy List. (October, 1914). p. 14.
  4. Supplement to the Monthly Navy List. (January, 1915). p. 14.
  5. Supplement to the Monthly Navy List. (December, 1914). p. 14.
  6. Supplement to the Monthly Navy List. (March, 1915). p. 14.
  7. Supplement to the Monthly Navy List. (April, 1915). p. 14 and Supplements through June.
  8. Supplement to the Monthly Navy List. (June, 1915). p. 16.
  9. Supplement to the Monthly Navy List. (May, 1915). p. 17.
  10. Supplement to the Monthly Navy List. (July, 1915). p. 16 and Supplements through October.
  11. Supplement to the Monthly Navy List. (October, 1915). p. 16.
  12. Supplement to the Monthly Navy List. (November, 1915). p. 16 and Supplements through March, 1916.
  13. Supplement to the Monthly Navy List. (March, 1916). p. 16.
  14. Supplement to the Monthly Navy List. (July, 1916). p. 16.
  15. Supplement to the Monthly Navy List. (August, 1916). pp. 13, 15, 16.
  16. Supplement to the Monthly Navy List. (July, 1916). p. 13.
  17. Conway's All the World's Fighting Ships 1906–1921. p. 89.
  18. Supplement to the Monthly Navy List. (September, 1916). p. 12.
  19. Supplement to the Monthly Navy List. (August, 1916). pp. 12, 13, 16.
  20. Supplement to the Monthly Navy List. (October, 1916). pp. 12, 13.
  21. Supplement to the Monthly Navy List. (November, 1916). p. 12.
  22. Supplement to the Monthly Navy List. (June, 1916). p. 13.
  23. Supplement to the Monthly Navy List. (December, 1916). p. 12.
  24. Supplement to the Monthly Navy List. (January, 1917). p. 12.
  25. Supplement to the Monthly Navy List. (March, 1917). p. 12. No February edition was found.
  26. The Technical History and Index, Vol. 1, Part 1. p. 5, 13.
  27. Supplement to the Monthly Navy List. (January, 1917). p. 12.
  28. Supplement to the Monthly Navy List. (May, 1917). p. 12 and Supplements through July.
  29. The Technical History and Index, Vol. 1, Part 1. p. 5.
  30. Supplement to the Monthly Navy List. (July, 1917). p. 12.
  31. Supplement to the Monthly Navy List. (June, 1917). p. 13.
  32. Supplement to the Monthly Navy List. (August, 1917). p. 12.
  33. Supplement to the Monthly Navy List. (September, 1917). p. 12.
  34. Supplement to the Monthly Navy List. (October, 1917). pp. 12, 16.
  35. Supplement to the Monthly Navy List. (November, 1917). pp. 12, 15.
  36. Supplement to the Monthly Navy List. (October, 1917). p. 15.
  37. Conway's All the World's Fighting Ships 1906–1921. p. 90.
  38. Supplement to the Monthly Navy List. (December, 1917). pp. 12, 13.
  39. Supplement to the Monthly Navy List. (November, 1917). p. 12.
  40. Supplement to the Monthly Navy List. (January, 1918). p. 12.
  41. Supplement to the Monthly Navy List. (February, 1918). pp. 12, 18.
  42. Conway's All the World's Fighting Ships 1906–1921. p. 90.
  43. Supplement to the Monthly Navy List. (March, 1918). p. 12 and Supplements through June, 1918.
  44. Supplement to the Monthly Navy List. (June, 1918). p. 12.
  45. Supplement to the Monthly Navy List. (May, 1918). p. 13.
  46. Supplement to the Monthly Navy List. (July, 1918). p. 12.
  47. Supplement to the Monthly Navy List. (June, 1918). p. 12.
  48. Supplement to the Monthly Navy List. (August, 1918). p. 12.
  49. Supplement to the Monthly Navy List. (August, 1918). p. 12.
  50. Supplement to the Monthly Navy List. (December, 1918). p. 12.
  51. Conway's All the World's Fighting Ships 1906–1921. p. 90.
  52. Supplement to the Monthly Navy List. (January, 1919). p. 12.
  53. Conway's All the World's Fighting Ships 1906–1921. p. 90.
  54. Supplement to the Monthly Navy List. (February, 1919). p. 19.
  55. Supplement to the Monthly Navy List. (February, 1919). p. 12.
  56. Donaldson Service Record. The National Archives. ADM 196/44. f. 230.
  57. Donaldson Service Record. The National Archives. ADM 196/44. f. 230.
  58. Dunbar-Nasmith Service Record. The National Archives. ADM 196/90/89. f. 89.
  59. The Navy List. (February, 1919). p. 836.
  60. Dunbar-Nasmith Service Record. The National Archives. ADM 196/90/89. f. 89.

Bibliography

See Also


British Submarine Flotillas
First Submarine Flotilla | Second Submarine Flotilla | Third Submarine Flotilla | Fourth Submarine Flotilla
Fifth Submarine Flotilla | Sixth Submarine Flotilla | Seventh Submarine Flotilla | Eighth Submarine Flotilla
Ninth Submarine Flotilla | Tenth Submarine Flotilla | Eleventh Submarine Flotilla | Twelfth Submarine Flotilla
Thirteenth Submarine Flotilla | Fourteenth Submarine Flotilla | Fifteenth Submarine Flotilla | Sixteenth Submarine Flotilla
Ambrose's Flotilla | Mediterranean Fleet's Flotilla | Platypus's Flotilla | Vulcan's Flotilla | Hong Kong Flotilla