| Built By: | Cammell Laird (Mersey) |
| Build Group: | Amphion |
| Fate: | Cancelled |
| Length overall | 280 ft 6in |
| Beam | 22 ft |
| Depth | 16ft |
| Displacement | 1385 tons (surface) |
| 1620 tons (submerged) | |
| Diving Depth | 350 ft |
| Speed | Surface 18.5 knots (design) |
| Submarged 8 knots (design) | |
| No. of shafts | 2 |
| Armament | 6 x 21 inch bow tubes (2 external) |
| 4 x 21 inch stern tubes (2 external) | |
| 20 torpedoes carried | |
| 1 x 4 inch gun | |
| 1 x 20mm Qerlikon cannon | |
| 3 x 0.303in machine-guns | |
| Endurance | Surface: 10 500 miles at 11 knots (design) |
| Submerged: 16 miles at 8 knots or 90 miles at 3 knots | |
| Complement | 6 Officers and 55 Ratings. |
| 6 Officers and 58 Ratings after modernisation. |
G 7 (I A9) |
|
| Class: | 1914 - 1921: G Class |
| Built By: | |
| Build Group: | G |
|
Fate: In 1918 HMS G7 (Lt Charles A C Russell RN) operated out of Blyth patrolling the North Sea. Contact was lost on the 23rd October and she was declared lost on 1st November, the last British submarine lost in WW1 |
|
Japanese midget submarines carried out torpedo attacks during WWII at Pearl Harbour, Sydney, and Diego Suarez in Madagascar.
The Coffin Boats presents an in-depth examination of these three attacks and provides background information on Japanese midget submarines and their pilots
22 pages added or updated in the last 3 month
Please help to maintain this site by reporting any Errors, Broken Links, Information or Site Issues on this page using this button
If you find this site useful, please consider supporting my work with a small Donation.
Please Note: Donations made using this option go directly to the site owner and not to the Submariners Association.
Thankyou for your support.
| Length overall | 280 ft 6in |
| Beam | 22 ft |
| Depth | 16ft |
| Displacement | 1385 tons (surface) |
| 1620 tons (submerged) | |
| Diving Depth | 350 ft |
| Speed | Surface 18.5 knots (design) |
| Submarged 8 knots (design) | |
| No. of shafts | 2 |
| Armament | 6 x 21 inch bow tubes (2 external) |
| 4 x 21 inch stern tubes (2 external) | |
| 20 torpedoes carried | |
| 1 x 4 inch gun | |
| 1 x 20mm Qerlikon cannon | |
| 3 x 0.303in machine-guns | |
| Endurance | Surface: 10 500 miles at 11 knots (design) |
| Submerged: 16 miles at 8 knots or 90 miles at 3 knots | |
| Complement | 6 Officers and 55 Ratings. |
| 6 Officers and 58 Ratings after modernisation. |
G 7 (I A9) |
|
| Class: | 1914 - 1921: G Class |
| Built By: | |
| Build Group: | G |
|
Fate: In 1918 HMS G7 (Lt Charles A C Russell RN) operated out of Blyth patrolling the North Sea. Contact was lost on the 23rd October and she was declared lost on 1st November, the last British submarine lost in WW1 |
|
Japanese midget submarines carried out torpedo attacks during WWII at Pearl Harbour, Sydney, and Diego Suarez in Madagascar.
The Coffin Boats presents an in-depth examination of these three attacks and provides background information on Japanese midget submarines and their pilots
22 pages added or updated in the last 3 month
Please help to maintain this site by reporting any Errors, Broken Links, Information or Site Issues on this page using this button
If you find this site useful, please consider supporting my work with a small Donation.
Please Note: Donations made using this option go directly to the site owner and not to the Submariners Association.
Thankyou for your support.

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