| Built By: | White (Cowes)/ Rosyth Dockyard |
| Build Group: | L3 |
| 07-07-1917 | Laid Down |
| 06-12-1918 | Launched |
| 18-04-1923 | From 18th April to 8th May L69 (also known as Lucia) went on sea trials. |
| 18-04-1923 | Completed |
| Length overall | 238 ft 7 inch |
| Beam | 23 ft 6 inch |
| Draught | 13 ft 2 inch |
| Displacement | 914 tons (surface) |
| 1089 tons (submerged) | |
| Diving Depth | 150 ft |
| Speed | Surface 17 knots (design) |
| Surface 17 to 17.5 knots (service) | |
| Submerged 10.5 knots (design) | |
| Submerged 10.5+ knots (service) | |
| No. of shafts | 2 |
| Propeller | 3 blades, 5 ft 7 inch diameter |
| Armament | 4 x 18 inch bow tubes, 2 x 18 inch beam tubes (10 torpedoes carried). 1 x 4 inch gun |
| Endurance | Surface: 2800 miles at full power (design) |
| Surface: 2850 miles at full power or 3600 miles at half full power (service) | |
| Submerged: 14 miles at full power (design) | |
| Submerged: 14 miles at full power or 65 miles at 5 knots (service) | |
| Complement | 41 |
B 4 (I 24) |
|
| Class: | 1903 - 1906: B Class |
| Built By: | |
| Build Group: | B |
|
Fate: Sold for breaking 1/4/1919 to Ardrossan Dockyard |
|
One of the great untold stories of the British services is that of the Royal Navy Submarine Service which entered the fray in World War I with 100 underwater craft. Through World War II, where submariners' prospects of returning safely from a mission were only 50:50, the Falklands conflict and the sinking of the Belgrano, to present-day elite machines, the Silent Service has played an enormous part in British defence.
John Parker's in-depth investigation is very much personality led with diaries from the early part of the century to substantial first-person testimony from survivors of wartime heroics (when many VCs were won).
11 pages added or updated in the last 2 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 | 238 ft 7 inch |
| Beam | 23 ft 6 inch |
| Draught | 13 ft 2 inch |
| Displacement | 914 tons (surface) |
| 1089 tons (submerged) | |
| Diving Depth | 150 ft |
| Speed | Surface 17 knots (design) |
| Surface 17 to 17.5 knots (service) | |
| Submerged 10.5 knots (design) | |
| Submerged 10.5+ knots (service) | |
| No. of shafts | 2 |
| Propeller | 3 blades, 5 ft 7 inch diameter |
| Armament | 4 x 18 inch bow tubes, 2 x 18 inch beam tubes (10 torpedoes carried). 1 x 4 inch gun |
| Endurance | Surface: 2800 miles at full power (design) |
| Surface: 2850 miles at full power or 3600 miles at half full power (service) | |
| Submerged: 14 miles at full power (design) | |
| Submerged: 14 miles at full power or 65 miles at 5 knots (service) | |
| Complement | 41 |
B 4 (I 24) |
|
| Class: | 1903 - 1906: B Class |
| Built By: | |
| Build Group: | B |
|
Fate: Sold for breaking 1/4/1919 to Ardrossan Dockyard |
|
One of the great untold stories of the British services is that of the Royal Navy Submarine Service which entered the fray in World War I with 100 underwater craft. Through World War II, where submariners' prospects of returning safely from a mission were only 50:50, the Falklands conflict and the sinking of the Belgrano, to present-day elite machines, the Silent Service has played an enormous part in British defence.
John Parker's in-depth investigation is very much personality led with diaries from the early part of the century to substantial first-person testimony from survivors of wartime heroics (when many VCs were won).
11 pages added or updated in the last 2 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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