C. 9, 1907
Type: Submarine ; Armament Tubes: 2 x 18 in
Launched : 1907 ; Disposal date or year : 1922
Displacement: 310 tons
Notes:

16 Dec 1914 alongside at Hartlepool on the day the town was attacked by German naval forces - see p. 247 www.naval-review.org/issues/1919-2.pdf.

C 16, 1908
Type: Submarine ; Armament Tubes: 2 x 18 in
Launched : 1908 ; Disposal date or year : 16 April 1917
Disposal Details : Accidentally rammed by a Destroyer of MEDEA type, subsequently salved, but found too badly damaged to be worth repairing.
Displacement: 310 tons
Machinery notes: 1-shaft petrol engine & electric motor; Speed ; 13 surfaced ; 7·50 submerged knots ;
Notes:

Aug 1914 Third Submarine Flotilla - Patrol Flotillas - Tender to Forth