| 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. |
The first Royal Navy Submarine to be fitted with an ASDIC Installation was, Barrow built Submarine H32 which acted as a test bed for an ASDIC Equipment based on a system fitted in Surface ships.
After an exhaustive two-year search for the truth about the events and aftermath of this terrible Submarine disaster in Liverpool Bay, June 1939, David Roberts has at last found some shocking hitherto unpublished details.
15 pages added or updated in the last Array months
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. |
The first Royal Navy Submarine to be fitted with an ASDIC Installation was, Barrow built Submarine H32 which acted as a test bed for an ASDIC Equipment based on a system fitted in Surface ships.
After an exhaustive two-year search for the truth about the events and aftermath of this terrible Submarine disaster in Liverpool Bay, June 1939, David Roberts has at last found some shocking hitherto unpublished details.
15 pages added or updated in the last Array months
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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