| Built By: | Vickers (Barrow) |
| Build Group: | H21 |
| Fate: | Sold on 18th August 1944 to be scrapped at Troon. |
H28 collided with a steamer in the Bruges Canal in May 1929
| Length overall | 171 ft 9 inch |
| Beam | 15 ft 9 inch |
| Depth | 15 ft 4 inch |
| Displacement | 438 tons (surface) |
| 504 tons (submerged) | |
| Diving Depth | 150 ft |
| Speed | Surface 13 knots (design) |
| Surface 11.5 knots (service) | |
| Submerged 10 to 10.5 knots (design) | |
| Submerged 9 knots (service) | |
| No. of shafts | 2 |
| Armament | 4 x 21 inch bow tubes (6 torpedoes carried) |
| Endurance | Surface: 2000 miles at full power (design) |
| Surface: 1100 miles at full power or 1600 miles at 10 knots (service) | |
| Submerged: 70 miles at 3 knots (design) | |
| Submerged: 9 miles at 8 knots or 34 miles at 3.5 knots (service) | |
| Complement | 22 |
I am baffled by the Admiralty promoting and facilitating these newsreels, as it shamelessly shows that an immersion suit that was NOT available to the Truculent escapees, many of whom would likely have survived if it had been!
'Underwater, underhanded and damned un-English' they might have been but submarine development and deployment has long been an integral part of naval warfare.
For centuries man has been fascinated with the possibility of an underwater vessel, the ultimate method of improving the odds against a superior surface fleet. Being submerged beneath the sea was the obvious means by which a warship could be approached and attacked without detection - but the attempts to create the perfect sub was a long and often tragic affair.
This DVD tracks the evolution of underwater crafts from the early Turtle to a privileged look inside the salvaged U-Boat 534 and beyond. Aboard the famous U-Boat 534 we examine the living conditions and the true bravery shown by all her crew.
14 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 | 171 ft 9 inch |
| Beam | 15 ft 9 inch |
| Depth | 15 ft 4 inch |
| Displacement | 438 tons (surface) |
| 504 tons (submerged) | |
| Diving Depth | 150 ft |
| Speed | Surface 13 knots (design) |
| Surface 11.5 knots (service) | |
| Submerged 10 to 10.5 knots (design) | |
| Submerged 9 knots (service) | |
| No. of shafts | 2 |
| Armament | 4 x 21 inch bow tubes (6 torpedoes carried) |
| Endurance | Surface: 2000 miles at full power (design) |
| Surface: 1100 miles at full power or 1600 miles at 10 knots (service) | |
| Submerged: 70 miles at 3 knots (design) | |
| Submerged: 9 miles at 8 knots or 34 miles at 3.5 knots (service) | |
| Complement | 22 |
I am baffled by the Admiralty promoting and facilitating these newsreels, as it shamelessly shows that an immersion suit that was NOT available to the Truculent escapees, many of whom would likely have survived if it had been!
'Underwater, underhanded and damned un-English' they might have been but submarine development and deployment has long been an integral part of naval warfare.
For centuries man has been fascinated with the possibility of an underwater vessel, the ultimate method of improving the odds against a superior surface fleet. Being submerged beneath the sea was the obvious means by which a warship could be approached and attacked without detection - but the attempts to create the perfect sub was a long and often tragic affair.
This DVD tracks the evolution of underwater crafts from the early Turtle to a privileged look inside the salvaged U-Boat 534 and beyond. Aboard the famous U-Boat 534 we examine the living conditions and the true bravery shown by all her crew.
14 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.

Comments
Comment by: david edwards on September 14th, 2025
the Navy List Oct 1931 has the "Lieut. in Command" as Lt. Richard Sheridan-Patterson. His service record shows command 17.12.30 - 23.11.31.
This form is for you to comment on, or add additional information to this page. Any questions will be deleted. If you wish to ask a question contact the Branch or the Webmaster using the Contact Us page or ask your question on our Facebook Page