| Built By: | Vickers (Barrow) |
| Build Group: | Holland |
| Fate: | Sold for scrap in 07-10-1913 to Pollock & Brown of Southampton. |
| Length overall | 63 ft 10 inch |
| Beam | 11 ft 9 inch |
| Displacement | 113 tons (surface) |
| 122 tons (submerged) | |
| Propulsion | Petrol engine, 160 hp |
| Electric motor, 74 hp | |
| No. of shafts | 1 |
| Propeller | 3 blades, 6ft diameter |
| Diving Depth | 100 ft |
| Speed | Surface 8 knots (design) |
| Surface 7.4 knots (service) | |
| Submerged 7 knots (design) | |
| Submerged 6 knots (service) | |
| Endurance | Surface: 355 miles (design) |
| Surface: 235 miles (service) | |
| Submerged: 20 miles at 5 knots | |
| Armament | 1 x 18 inch bow torpedo tube (three torpedoes carried) |
| Complement | 8 |
| Class: | 1956 - 1988: Porpoise Class |
| Built By: | Cammell Laird (Mersey) |
| Build Group: | P2 |
| Fate: | |
| Removed from disposal list and taken in hand at Portsmouth to be converted as a static underwater target during 1980 and sunk off the coast of Scotland in the same year. | |
During the bleak, heartbreaking days of early 1942, when beleaguered Malta was reeling under bombardment and blockade and Rommel was making his last desperate thrust towards Egypt, only one British submarine was operating in the western Mediterranean - the tiny, 600-ton Unbroken.
In twelve months in the Med, Unbroken sank over 30,000 tons of enemy shipping, took part in four secret operations, three successful gun actions, and survived a total of over 400 depth charges, as well as innumerable air and surface attacks.
This account of the 26-year-old Alastair Mars' command of this outstandingly successful submarine embraces her construction, sea trials and voyage to Gibraltar preparatory to her vital role in the Mediterranean. Once there, she was responsible for the destruction of two Italian cruisers and played a pivotal part in Operation Pedestal, the convoy that saved Malta from surrender.
Alastair Mars writes simply and without pretension, and his words evoke the claustrophobic yet heroic world of the submariner.
14 pages added or updated in the last 2 month
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| Length overall | 63 ft 10 inch |
| Beam | 11 ft 9 inch |
| Displacement | 113 tons (surface) |
| 122 tons (submerged) | |
| Propulsion | Petrol engine, 160 hp |
| Electric motor, 74 hp | |
| No. of shafts | 1 |
| Propeller | 3 blades, 6ft diameter |
| Diving Depth | 100 ft |
| Speed | Surface 8 knots (design) |
| Surface 7.4 knots (service) | |
| Submerged 7 knots (design) | |
| Submerged 6 knots (service) | |
| Endurance | Surface: 355 miles (design) |
| Surface: 235 miles (service) | |
| Submerged: 20 miles at 5 knots | |
| Armament | 1 x 18 inch bow torpedo tube (three torpedoes carried) |
| Complement | 8 |
| Class: | 1956 - 1988: Porpoise Class |
| Built By: | Cammell Laird (Mersey) |
| Build Group: | P2 |
| Fate: | |
| Removed from disposal list and taken in hand at Portsmouth to be converted as a static underwater target during 1980 and sunk off the coast of Scotland in the same year. | |
During the bleak, heartbreaking days of early 1942, when beleaguered Malta was reeling under bombardment and blockade and Rommel was making his last desperate thrust towards Egypt, only one British submarine was operating in the western Mediterranean - the tiny, 600-ton Unbroken.
In twelve months in the Med, Unbroken sank over 30,000 tons of enemy shipping, took part in four secret operations, three successful gun actions, and survived a total of over 400 depth charges, as well as innumerable air and surface attacks.
This account of the 26-year-old Alastair Mars' command of this outstandingly successful submarine embraces her construction, sea trials and voyage to Gibraltar preparatory to her vital role in the Mediterranean. Once there, she was responsible for the destruction of two Italian cruisers and played a pivotal part in Operation Pedestal, the convoy that saved Malta from surrender.
Alastair Mars writes simply and without pretension, and his words evoke the claustrophobic yet heroic world of the submariner.
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.

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