Mediterranean Submarine Flotilla

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

History

1 June, 1914

Though they would not be clearly labelled as a "Flotilla" until September, three "B" class coastal submarines are first listed under the Mediterranean Fleet in the June Supplement, having apparently been assigned some time in May. This modest strength would change some time in January, 1915.[1]

Attached to the Mediterranean Fleet
Submarines
B 9 B 10 B 11

1 March, 1915

Two more "B" boats and AE 2 have joined, bringing the strength to six small submarines.[2]

Attached to the Mediterranean Fleet
Submarines
B 6 B 8 B 9 B 10 B 11 AE 2

1 April, 1915

B 7 and three "E" class submarines have joined, bringing the strength to seven coastal submarines and three more capable patrol submarines. This roster would apply until some time in May.[3]

Attached to the Mediterranean Fleet
Submarines
B 6 B 7 B 8 B 9 B 10 B 11
AE 2
E 11 E 14 E 15

June, 1915

E 15 and AE 2 have been reluctantly removed after being lost on 15 and 30 April, respectively. Meanwhile, E 7 and E 12 have joined, making six coastal submarines and four patrol submarines.[4]

Attached to the Mediterranean Fleet
Submarines
B 6 B 7 B 8 B 9 B 10 B 11
  E 7 E 11 E 12 E 14

1 July, 1915

E 2 has joined along with four "H" class submarines and a depot ship, making a depot ship, six coastal submarines and nine patrol submarines. This roster would change some time in August.[5]

Attached to the Mediterranean Fleet
Depot Ship
Adamant
Submarines
B 6 B 7 B 8 B 9 B 10 B 11
E 2 E 7 E 11 E 12 E 14
  H 1 H 2 H 3 H 4

1 September, 1915

E 20 has joined, bringing the strength to a depot ship, six coastal submarines and ten patrol submarines. This roster would change some time in X.[6]

Attached to the Mediterranean Fleet
Depot Ship
Adamant
Submarines
B 6 B 7 B 8 B 9 B 10 B 11
E 2 E 7 E 11 E 12 E 14 E 20
  H 1 H 2 H 3 H 4

1 October, 1915

B 7, B 8 and B 9 have left to join the British Adriatic Squadron, reducing the strength to a depot ship, three coastal submarines and ten patrol submarines.[7]

Attached to the Mediterranean Fleet
Depot Ship
Adamant
Submarines
B 6 B 10 B 11
E 2 E 7 E 11 E 12 E 14
  H 1 H 2 H 3 H 4

1 November, 1915

The remaining "B" class submarines have now also left to join the British Adriatic Squadron, reducing the strength to a depot ship and ten patrol submarines. This roster would change some time in X.[8]

Attached to the Mediterranean Fleet
Depot Ship
Adamant
Submarines
E 2 E 7 E 11 E 12 E 14 E 20
  H 1 H 2 H 3 H 4

December, 1915

E 7 was sunk in the Dardanelles on 5 September and E 20 on 5 November. These losses have been made good by the arrival of E 21 and E 25, maintaining a strength of one depot ship and ten patrol submarines. This roster would change some time in January.[9]

Attached to the Mediterranean Fleet
Depot Ship
Adamant
Submarines
E 2 E 11 E 12 E 14 E 21 E 25
  H 1 H 2 H 3 H 4

1 February, 1916

E 12, E 14 H 1 and H 4 have all been sent to join the British Adriatic Squadron, leaving a strength of one depot ship and six patrol submarines. This roster would change some time in X.[10]

Attached to the Mediterranean Fleet
Depot Ship
Adamant
Submarines
  E 2 E 11 E 21 E 25
H 2 H 3

1 March, 1916

H 3 has also been sent to join the British Adriatic Squadron, leaving a strength of one depot ship and five patrol submarines. This roster would change some time in April.[11]

Attached to the Mediterranean Fleet
Depot Ship
Adamant
Submarines
  E 2 E 11 E 21 E 25
H 2

1 May, 1916

H 2 has finally also been sent to join the British Adriatic Squadron while E 12 and E 14 have returned, leaving a strength here of one depot ship and six patrol submarines. This roster would prove quite stable, and would not change until some time in November, 1917.[12]

Attached to the Mediterranean Fleet
Depot Ship
Adamant
Submarines
E 2 E 11 E 12 E 14 E 21 E 25

1 December, 1917

After a year and a half of stability, E 2 and E 12 have left to join the British Aegean Squadron, leaving a strength here of one depot ship and four patrol submarines.[13]

Attached to the Mediterranean Fleet
Depot Ship
Adamant
Submarines
E 11 E 14 E 21 E 25

1 January, 1918

The flotilla is no longer listed by name in the Supplement to the Monthly Navy List, and its vessels have all moved to join the British Adriatic Force.[14]

Flotilla Disbanded

In Command

Dates of appointment given:

Footnotes

  1. The Navy List. (June, 1914). p. 270 and Supplements through March, 1915 excluding February.
  2. Supplement to the Monthly Navy List. (March, 1915). p. 19.
  3. Supplement to the Monthly Navy List. (April, 1915). p. 19 and Supplements through June.
  4. Supplement to the Monthly Navy List. (June, 1915). p. 19.
  5. Supplement to the Monthly Navy List. (July, 1915). p. 20 and Supplements through September.
  6. Supplement to the Monthly Navy List. (September, 1915). p. 20 and Supplements through X.
  7. Supplement to the Monthly Navy List. (October, 1915). p. 20.
  8. Supplement to the Monthly Navy List. (October, 1915). p. 20.
  9. Supplement to the Monthly Navy List. (December, 1915). p. 20 and Supplements through February, 1916.
  10. Supplement to the Monthly Navy List. (March, 1916). p. 20 and Supplements through X.
  11. Supplement to the Monthly Navy List. (March, 1916). p. 20 and Supplements through May.
  12. Supplement to the Monthly Navy List. (May, 1916). p. 20 and Supplements through December, 1917.
  13. Supplement to the Monthly Navy List. (December, 1917). p. 21.
  14. Supplement to the Monthly Navy List. (January, 1918). pp. 21, 22.

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 Flotilla | Platypus's Flotilla | Vulcan's Flotilla | Hong Kong Flotilla