| Name: | G 7 | 
| Type: | Submarine | 
| Keel: | 08/12/1914 | 
| Launched: | 04/03/1916 | 
| Completed: | 19/08/1916 | 
| Builder: | Armstrong, Whitworth & Co Ltd | 
| Yard: | Elswick | 
| Yard Number: | 881 | 
| Dimensions: | 975disp subm, 700disp surf, 188.7 x 22.7 x 13.6ft | 
| Engines: | 2 x oil engines, 1600hp; 2 x electric motors, 840hp | 
| Engines by: | Vickers | 
| Propulsion: | 2 x Screws, 10.0knots subm, 14.5knots surf | 
| Construction: | Steel | 
| Armament: | 1 x 3ins QF & 1 x 12pdr guns, 4 x 18ins & 1 x 21ins torpedoes | 
| History: | |
| 21/08/1916 | British Royal Navy | 
| 01/11/1918 | Missing | 
| Comments: | Member of the Admiralty G Class of submarines | 
| Launched at Elswick but completed at High Walker | |
| Bow probably raised during the war to increase buoyancy & improve seakeeping | |
| 01/11/1918: Reported missing in the North Sea, with 31 crew | 

Above photo showing typical original bow form is copyright of the Imperial War Museum

Above photo showing typical modified bow form is copyright of the Imperial War Museum