| Built By: | Scotts (Clyde) |
| Build Group: | S1 |
| Fate: | To Italy 25th October 1915 |
| 1915: | Lieutenant Commander | Gilbert Hilton Kellett |
| Length overall | 217 ft |
| Beam | 23 ft 6 inch |
| Depth | 11 ft |
| Displacement | 872 tons (surface) |
| 990 tons (submerged) | |
| Diving Depth | 350 ft |
| Speed | Surface 15 knots (design) |
| Surface 14.75 knots (service) | |
| Submerged 10 knots (design) | |
| Submerged 9 knots (service) | |
| No. of shafts | 2 |
| Endurance | Surface: 6000 miles at 10 knots (design) |
| Armament (i) | 6 x 21 inch bow tubes |
| 1 21 inch stern tube | |
| (13 torpedoes carried) | |
| 1 x 3 inch gun | |
| 3 x 0.303 inch machine-guns | |
| 1 x 20mm Oerlikon cannon | |
| Complement | 4 Officers and 34 Ratings. |
| Note | {i) The armament of submarines of this class varied considerably. For example: 23 boats were fitted with the six bow tubes only; 18 vessels, intended to operate in the Far East, had their 3 inch guns replaced by 4 inch guns; whilst, in some boats, the Oerlikon cannon replaced, rather than supplemented, the three machine-guns. |
| Class: | Depot Ships |
| Built By: | Upper Clyde Shipbuilders (Clyde) |
| Build Group: | I 56 |
| Fate: | |
| Platypus was placed into reserve on 13 May 1946, paid off on 1 November 1956 and was sold for scrap on 20 February 1958. | |
This witty and perceptive account of the early years of submarine development contains much new material and the lives of the forgotten pioneers of submarines.
It includes many wonderful inventions and even more colourful inventors, but focuses primarily on John Philip Holland, the Irish-American genius who took submarine development out of the hands of lunatics and visionaries and turned it into a deadly weapon of war
14 pages added or updated in the last 1 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 | 217 ft |
| Beam | 23 ft 6 inch |
| Depth | 11 ft |
| Displacement | 872 tons (surface) |
| 990 tons (submerged) | |
| Diving Depth | 350 ft |
| Speed | Surface 15 knots (design) |
| Surface 14.75 knots (service) | |
| Submerged 10 knots (design) | |
| Submerged 9 knots (service) | |
| No. of shafts | 2 |
| Endurance | Surface: 6000 miles at 10 knots (design) |
| Armament (i) | 6 x 21 inch bow tubes |
| 1 21 inch stern tube | |
| (13 torpedoes carried) | |
| 1 x 3 inch gun | |
| 3 x 0.303 inch machine-guns | |
| 1 x 20mm Oerlikon cannon | |
| Complement | 4 Officers and 34 Ratings. |
| Note | {i) The armament of submarines of this class varied considerably. For example: 23 boats were fitted with the six bow tubes only; 18 vessels, intended to operate in the Far East, had their 3 inch guns replaced by 4 inch guns; whilst, in some boats, the Oerlikon cannon replaced, rather than supplemented, the three machine-guns. |
| Class: | Depot Ships |
| Built By: | Upper Clyde Shipbuilders (Clyde) |
| Build Group: | I 56 |
| Fate: | |
| Platypus was placed into reserve on 13 May 1946, paid off on 1 November 1956 and was sold for scrap on 20 February 1958. | |
This witty and perceptive account of the early years of submarine development contains much new material and the lives of the forgotten pioneers of submarines.
It includes many wonderful inventions and even more colourful inventors, but focuses primarily on John Philip Holland, the Irish-American genius who took submarine development out of the hands of lunatics and visionaries and turned it into a deadly weapon of war
14 pages added or updated in the last 1 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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