| Built By: | Vickers (Barrow) |
| Build Group: | U2 |
| Fate: | Decommissioned in 1952, returned to the Royal Navy and scrapped in Holland. |
HMS P47 was transferred to the Royal Netherlands Navy before completion and commisoned as HNLMS Dolfijn.
In 1952 she was decommissioned and returned to the Royal Navy.
| Length overall | 195 ft 6 inch |
| Beam | 15 ft 9 inch |
| Depth | 15 ft 10 inch |
| Displacement | 648 tons (surface) |
| 735 tons (submerged) | |
| Diving Depth | 200 ft |
| Speed | 11.5 knots (surface) |
| 9 knots (submerged) | |
| No. of shafts | 2 |
| Endurance | Surface: 4050 miles at 10 knots (design) |
| Submerged: 23 miles at 8 knots or 170 miles at 2.5 knots (design) | |
| Armament | 4 x 21 inch bow tubes (8 torpedoes carried) |
| 1 x 3 inch gun | |
| 3 x 0.303 inch machine-guns | |
| Complement | 4 Officers, 29 Others. |
| Class: | 1935 - 1970: Improved S Class |
| Built By: | Chatham Dockyard (Medway) |
| Build Group: | S1 |
| Fate: | |
| Depth charged and sunk by German minesweeper M7 in the Heligoland Bight on 9 Jan 1940 | |
From Twenty Thousand Leagues Under the Sea to The Hunt for Red October, readers the world over have demonstrated an enduring fascination with travel under the sea. Yet the riveting story behind the invention of the submarine—an epic saga of genius, persistence, ruthlessness, and deceit—is almost completely unknown.
Like Henry Ford and the Wright brothers, John Philip Holland was completely self-taught, a brilliant man raised in humble circumstances, earning his living as a schoolteacher and choirmaster. But all the while he was obsessed with creating a machine that could successfully cruise beneath the waves. His struggle to unlock the mystery behind controlled undersea navigation would take three decades, during which he endured skepticism, disappointment, and betrayal. But his indestructible belief in himself and his ideas led him to finally succeed where so many others had failed.
Going Deep is a vivid chronicle of the fierce battles not only under the water, but also in the back rooms of Wall Street and the committee rooms of Congress. A rousing adventure at its heart—surrounded by an atmosphere of corruption and greed—this a story of bravery, passion, and the unbreakable determination to succeed against long odds.
20 pages added or updated in the last Array 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 | 195 ft 6 inch |
| Beam | 15 ft 9 inch |
| Depth | 15 ft 10 inch |
| Displacement | 648 tons (surface) |
| 735 tons (submerged) | |
| Diving Depth | 200 ft |
| Speed | 11.5 knots (surface) |
| 9 knots (submerged) | |
| No. of shafts | 2 |
| Endurance | Surface: 4050 miles at 10 knots (design) |
| Submerged: 23 miles at 8 knots or 170 miles at 2.5 knots (design) | |
| Armament | 4 x 21 inch bow tubes (8 torpedoes carried) |
| 1 x 3 inch gun | |
| 3 x 0.303 inch machine-guns | |
| Complement | 4 Officers, 29 Others. |
| Class: | 1935 - 1970: Improved S Class |
| Built By: | Chatham Dockyard (Medway) |
| Build Group: | S1 |
| Fate: | |
| Depth charged and sunk by German minesweeper M7 in the Heligoland Bight on 9 Jan 1940 | |
From Twenty Thousand Leagues Under the Sea to The Hunt for Red October, readers the world over have demonstrated an enduring fascination with travel under the sea. Yet the riveting story behind the invention of the submarine—an epic saga of genius, persistence, ruthlessness, and deceit—is almost completely unknown.
Like Henry Ford and the Wright brothers, John Philip Holland was completely self-taught, a brilliant man raised in humble circumstances, earning his living as a schoolteacher and choirmaster. But all the while he was obsessed with creating a machine that could successfully cruise beneath the waves. His struggle to unlock the mystery behind controlled undersea navigation would take three decades, during which he endured skepticism, disappointment, and betrayal. But his indestructible belief in himself and his ideas led him to finally succeed where so many others had failed.
Going Deep is a vivid chronicle of the fierce battles not only under the water, but also in the back rooms of Wall Street and the committee rooms of Congress. A rousing adventure at its heart—surrounded by an atmosphere of corruption and greed—this a story of bravery, passion, and the unbreakable determination to succeed against long odds.
20 pages added or updated in the last Array 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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