| Built By: | Vickers (Barrow) |
| Build Group: | XT |
Unofficially named Herald
Less elaborately equipped as previous boats as they were intended for training.
| Length overall | 51 ft 7 inch |
| Beam | 8 ft 6 inch (with charges) |
| 5 ft 9 1/2 inch (without charges) | |
| Displacement | Without Charges: 27 tons (surface) |
| Without Charges: 29 1/2 tons (submerged) | |
| Diving Depth | 300 ft |
| Speed | With Charges: 6.5 knots (surface) |
| With Charges:5 knots (submerged) | |
| No. of shafts | 1 |
| Armament | 2 x 2-ton side charges |
| Limpet mines | |
| Endurance | Surface: 1320 miles at 4 knots (with charges) |
| Surface: 1860 miles at 4 knots (without charges) | |
| Submerged: 80 miles at 2 knots (with charges) | |
| Complement | 4 |
Suddenly there was an almighty thump, as the conning tower of the submarine struck our hull, almost below where we were standing. The stern of the "Grey Rover" was shunted round a few degrees to port and the bow to starboard. On the bridge we were in shock for a few moments with the realisation of what had happened. The propeller was quickly declutched from the engine and I took a position of our ship. The engineers below, who must have had an awful fright, were told what had happened and checked that we had not been holed.
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| Length overall | 51 ft 7 inch |
| Beam | 8 ft 6 inch (with charges) |
| 5 ft 9 1/2 inch (without charges) | |
| Displacement | Without Charges: 27 tons (surface) |
| Without Charges: 29 1/2 tons (submerged) | |
| Diving Depth | 300 ft |
| Speed | With Charges: 6.5 knots (surface) |
| With Charges:5 knots (submerged) | |
| No. of shafts | 1 |
| Armament | 2 x 2-ton side charges |
| Limpet mines | |
| Endurance | Surface: 1320 miles at 4 knots (with charges) |
| Surface: 1860 miles at 4 knots (without charges) | |
| Submerged: 80 miles at 2 knots (with charges) | |
| Complement | 4 |
Suddenly there was an almighty thump, as the conning tower of the submarine struck our hull, almost below where we were standing. The stern of the "Grey Rover" was shunted round a few degrees to port and the bow to starboard. On the bridge we were in shock for a few moments with the realisation of what had happened. The propeller was quickly declutched from the engine and I took a position of our ship. The engineers below, who must have had an awful fright, were told what had happened and checked that we had not been holed.
Collected and edited by Trident Society of the United States Naval Academy at Annapolis, Maryland
12 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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