| Built By: | Pembroke Dockyard |
| Build Group: | Mercury |
| Fate: | Paid off in March 1919. She was eventually sold for scrap to the Forth Ship-breaking Company, at Bo'ness, on 9 July 1919. |
Mercury was laid down at Pembroke Dockyard on 16 March 1876, launched on 17 April 1878 and completed on 18 September 1879. Originally equipped with a light barque rig, her sails were soon removed and the class became the first "mastless cruisers". She had an "unprecedented amount of space taken up with machinery", but was thought of so highly that she was rearmed three times during her service.
Mercury served with the Portsmouth Reserve from 1879 to 1890, in China from 1890 to 1895 and with the Portsmouth Reserve again from 1895 to 1903. She served as a navigation school ship for navigating officers from 1903 to 1905 and a submarine depot ship at Portsmouth from 1906 to 1913, and at Harwich in 1913. There were plans to rename her Columbine in 1912, but these were rescinded and instead she was hulked at Rosyth in 1914 with the port depot ship there, HMS Columbine, the former HMS Wild Swan. She was moved to Chatham, where she became an accommodation ship from 7 January 1918, and was paid off in March 1919. She was eventually sold for scrap to the Forth Shipbreaking Company, at Bo'ness, on 9 July 1919.
| 17-04-1878 | Launched at Pembroke Dockyard |
| 18-09-1879 | Completed at Pembroke Dockyard |
| 19-03-1886 | Laid down at Pembroke Dockyard |
| Displacement | 3,730 tons |
| Length | 300 ft between perpendiculars |
| 315 ft length overall | |
| Beam | 46 ft |
| Draught | 15 ft 8 in (forward) |
| 20 ft 6 in (aft) | |
| Depth of hold | 22 ft (6.7 m) |
| Installed power | Trials: 7,534 indicated horsepower |
| In service: 6,000 indicated horsepower | |
| Propulsion | Maudslay horizontal direct-acting compound steam engine, eight oval and four cylindrical boilers, 780 tons coal |
| Speed | Trials: 18.76 knots |
| In service: 17 knots maximum | |
| Complement | 275 |
| Armament | 10 x 64-pounder guns |
| from 1887 | 13 x 5-inch breech-loading rifled guns |
| 4 x 3-pounder quick-firing guns | |
| 4 x torpedo carriages | |
| Armour | none |
L 6 |
|
| Class: | 1916 - 1945: L Class |
| Built By: | |
| Build Group: | L1 |
|
Fate: Scrapped 1935 |
|
This unique memoir charts the career of the author in the Royal Navy Submarine Service during the period 1967 to 1997, and in doing so details many of the Silent Service's remarkable achievements since the end of the Second World War. And it provides a dramatic first-hand account of the underwater confrontation during the Cold War between submarines of the West and the huge submarine force of the Soviet Union.
Dan Conley narrates the successive stages from his basic submarine training to taking command of two nuclear attack submarines, but he does not demur from describing the personal and professional difficulties he encountered in this journey. He sets out in detail what life was like serving onboard both diesel and nuclear submarines, and in particular, the book describes the British submariner's remarkable transformation from the somewhat buccaneering, free spirit serving on a clapped-out WW2 boat during the sunset of the British Empire, to the highly professional individual who spends prolonged periods under the sea in a platform which matches the complexity of a space craft.
The book describes the long and difficult challenges encountered in developing effective weapon systems for the British submarine force, and discusses the difficulties and shortcomings in the UK's defence procurement system, a situation which still exists today. Ultimately, however, Western technological superiority and crew proficiency enabled the submarines of the Royal and United States Navies to match those of the Soviet Union, and he describes vividly the suspense and tension of underwater confrontations which might so easily have escalated to another dimension of warfare. And the book sets out hitherto undisclosed details of submarine activities during the 1962 Cuban Missile Crisis, when the world confronted the real possibility of a massive nuclear exchange.
But it is not all serious content, and he also offers a glimpse for the reader of many humorous situations and events, of animals that found themselves under the sea in a submarine, in one case during a war patrol, and other moments of levity that broke the tension of serving in a highly complex and sophisticated fighting machine. The Cold War era is now long past. However, it is evident that as the West now confronts an aggressive, recidivist Russia and a more aggressive China, Britain's submarine force once again will be key to the security of all its citizens.
This fine memoir captures vividly the key events and history of the Cold War, and in doing so will open the reader's eyes to the significance and importance today of the Royal Navy Submarine Service.
22 pages added or updated in the last 1 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.
| Displacement | 3,730 tons |
| Length | 300 ft between perpendiculars |
| 315 ft length overall | |
| Beam | 46 ft |
| Draught | 15 ft 8 in (forward) |
| 20 ft 6 in (aft) | |
| Depth of hold | 22 ft (6.7 m) |
| Installed power | Trials: 7,534 indicated horsepower |
| In service: 6,000 indicated horsepower | |
| Propulsion | Maudslay horizontal direct-acting compound steam engine, eight oval and four cylindrical boilers, 780 tons coal |
| Speed | Trials: 18.76 knots |
| In service: 17 knots maximum | |
| Complement | 275 |
| Armament | 10 x 64-pounder guns |
| from 1887 | 13 x 5-inch breech-loading rifled guns |
| 4 x 3-pounder quick-firing guns | |
| 4 x torpedo carriages | |
| Armour | none |
L 6 |
|
| Class: | 1916 - 1945: L Class |
| Built By: | |
| Build Group: | L1 |
|
Fate: Scrapped 1935 |
|
This unique memoir charts the career of the author in the Royal Navy Submarine Service during the period 1967 to 1997, and in doing so details many of the Silent Service's remarkable achievements since the end of the Second World War. And it provides a dramatic first-hand account of the underwater confrontation during the Cold War between submarines of the West and the huge submarine force of the Soviet Union.
Dan Conley narrates the successive stages from his basic submarine training to taking command of two nuclear attack submarines, but he does not demur from describing the personal and professional difficulties he encountered in this journey. He sets out in detail what life was like serving onboard both diesel and nuclear submarines, and in particular, the book describes the British submariner's remarkable transformation from the somewhat buccaneering, free spirit serving on a clapped-out WW2 boat during the sunset of the British Empire, to the highly professional individual who spends prolonged periods under the sea in a platform which matches the complexity of a space craft.
The book describes the long and difficult challenges encountered in developing effective weapon systems for the British submarine force, and discusses the difficulties and shortcomings in the UK's defence procurement system, a situation which still exists today. Ultimately, however, Western technological superiority and crew proficiency enabled the submarines of the Royal and United States Navies to match those of the Soviet Union, and he describes vividly the suspense and tension of underwater confrontations which might so easily have escalated to another dimension of warfare. And the book sets out hitherto undisclosed details of submarine activities during the 1962 Cuban Missile Crisis, when the world confronted the real possibility of a massive nuclear exchange.
But it is not all serious content, and he also offers a glimpse for the reader of many humorous situations and events, of animals that found themselves under the sea in a submarine, in one case during a war patrol, and other moments of levity that broke the tension of serving in a highly complex and sophisticated fighting machine. The Cold War era is now long past. However, it is evident that as the West now confronts an aggressive, recidivist Russia and a more aggressive China, Britain's submarine force once again will be key to the security of all its citizens.
This fine memoir captures vividly the key events and history of the Cold War, and in doing so will open the reader's eyes to the significance and importance today of the Royal Navy Submarine Service.
22 pages added or updated in the last 1 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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