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Alarm Class Torpedo Boats Class Overview |
Dimensions, machinery and performance |
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Length: |
230' (PP) |
Engines: |
2 x three cylinder vertical triple expansion |
Beam: |
27" |
Boilers: |
4 locomotive (Speedy 4 Thornycroft water tube) |
Draft: |
12" |
Shafts: |
2 |
Displacement: |
810 |
HP: |
3,500 ihp (Speedy 5,000 ihp) |
Speed: |
18.7 knots (Speedy 20.5 knots) forced draught |
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Crew: |
91 |
Range: |
2,500 NM @ 10 knots |
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Construction notes: |
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(a): |
Speedy was the only ship in the class with 3 funnels. |
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Armament as built
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Number Carried
|
Type
|
Arrangement
|
Maximum Range / Ceiling
|
2 |
120mm / 45 QF |
Single mounts |
9,680 yards (5.5 miles) |
4 |
47mm / 40 Hotchkiss QF |
Single mounts |
6,336 yards (3.6 miles) |
1 |
Gardner Machine Gun |
Single mount |
5 barrel |
3 |
14" torpedo tubes (a) |
1 bow, 2 launchers |
N/A |
3 |
18" torpedo tubes (b) |
1 bow, 2 launchers |
N/A |
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Armament notes: |
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(a): |
Alarm, Antelope, Circe, Hebe, Leda, and Renard. |
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(b): |
Jaseur, Jason, Niger, Onyx and Speedy. |
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Name |
Builder |
Launched |
Completed |
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Naval Construction & Armament Co. Ltd. Barrow-in-Furness, England |
May 14, 1892 |
July 11, 1893 |
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Fate |
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Sunk Apr. 7, 1917 by mine laid by SMS U-78 (Kapitänleutnant Otto Dröscher)
Location: North Atlantic, 3mi SE of Arinagour, Isle of Coll, Scotland. (56.35N-06.28W) 25 men lost. (Roll of Honour) |
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Name |
Builder |
Launched |
Completed |
|
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Sheerness Dockyard Sheerness, Kent, England |
June 14, 1892 |
May 1893 |
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Fate |
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Sold July 30, 1920 to H. Auten & Co. and scrapped.
(Converted into minesweeper in 1909.) |
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Name |
Builder |
Launched |
Completed |
|
|
Sheerness Dockyard Sheerness, Kent, England |
June 15, 1892 |
Oct. 9, 1894 |
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Fate |
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|
Sold Oct. 22, 1919 to Thomas W. Ward, Preston, England and scrapped.
(Converted into a minesweeper in 1909, converted into a submarine depot 1910.) |
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Name |
Builder |
Launched |
Completed |
|
Onyx |
Laird & Brothers Birkenhead, England |
Sept. 7, 1892 |
Jan. 1894 |
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Fate |
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|
Sold 1924 King, Garston, England, resold Oct. 9, 1924 to Basso, Weymouth,
England and scrapped. (Converted into depot ship in1907, renamed Vulcan II in June 1919.) |
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Name |
Builder |
Launched |
Completed |
|
|
Sheerness Dockyard Sheerness, Kent, England |
Sept. 13, 1892 |
Mar. 1894 |
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Fate |
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|
Sold Apr. 9, 1907 to Thames Shipbreaking Co. and scrapped.
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Name |
Builder |
Launched |
Completed |
|
|
Sheerness Dockyard Sheerness, Kent, England |
Sept. 13, 1892 |
Nov. 1893 |
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Fate |
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|
Sold July 14, 1920 to Cardiff Marine Stores and scrapped in Germany.
(Converted into a minesweeper in 1909.) |
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Name |
Builder |
Launched |
Completed |
|
Jaseur |
Naval Construction & Armament Co. Ltd. Barrow-in-Furness, England |
Sept. 24, 1892 |
Feb. 13, 1893 |
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Fate |
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Sold July 11, 1905 and scrapped in Portsmouth, England.
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Name |
Builder |
Launched |
Completed |
|
|
Laird & Brothers Birkenhead, England |
June 12, 1892 |
Jan. 1894 |
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Fate |
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Sold Apr. 4, 1905 to P&W MacLellan Ltd., Bo'Ness, Scotland and scrapped.
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Name |
Builder |
Launched |
Completed |
|
|
Naval Construction & Armament Co. Ltd. Barrow-in-Furness, England |
Dec. 17, 1892 |
Apr. 25, 1893 |
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Fate |
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|
Sunk Nov. 11, 1914 torpedoed by SMS U-12 (Kapitänleutnant Walter Forstmann)
(Note, converted into a minesweeper in 1909.) Location: North Sea 2 miles east of Deal, England. (51.14N-01.27E) 15 men lost. (Roll of Honour) |
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Name |
Builder |
Launched |
Completed |
|
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John I. Thornycroft & Co. Ltd. Chiswick, England |
May 18, 1893 |
Feb. 20, 1894 |
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Fate |
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|
Sunk Sept. 3, 1914 by a mine laid by SMS Nautilus (Fregattenkapitän Wilhelm Schultz)
Location: North Sea, 61 miles east of Grimsby, England. 1 man lost (Officer's Steward 2nd Class Edwin Arnold Claxton, R.N.) |
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Name |
Builder |
Launched |
Completed |
|
|
Devonport Dockyard Plymouth, England |
July 12, 1893 |
May 1894 |
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Fate |
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|
Sold May 27, 1919 to T. R. Sales and scrapped.
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Page published Jan. 28, 2020 |