A Class Torpedo Boats.

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Buried in the minor vessels in the Naval Acquisition Act were twelve Harbour Defence Torpedo Boats. These ships were to be based in groups of 4 at the major harbours, Demeter, Hyperion and Artemis. At 300 tons, 180x18 feet, these were not big ships but they carried a punch to threaten much bigger ships. With 2x75mm and 2x47mm the gun armament was to provide the distraction to allow the ships to get within range of their 4x18" torpedo tubes. These ships were also turbine engined with 6,000shp for 32 knots.


 

Four of the class were transferred to Gibraltar where they provided anti-U-boat patrols 1915-1918. A5 and A6 provided the highlight when they sank UC25 which was trying to force the straits into the Mediterranean.

Displacement: 300 tons normal, 360 tons full load
Dimensions: 180 x 18 x 6 feet
Machinery: 2 shaft, turbines, 6,000shp
Speed: 32 knots
Endurance: 1,500 miles at 15 knots
Armour: Nil
Armament:
2 x 75mm (2x1)
2 x 47mm (2x1)
4 x 18" torpedoes (2x2)
Crew: 38

Service/Fate:

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