HMS Polyphemus
Vessel
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The third HMS Polyphemus was a Royal Navy torpedo ram, serving from 1881 until 1903. A shallow-draft, fast, low-profile vessel, she was designed to penetrate enemy harbours at speed and sink anchored ships. Wikipedia
Launched: June 15, 1881
Length: 240′
Draft: 20.5′
Armament: 5 × 14-inch torpedo tubes, 18 torpedoes; 6 × 1-inch Nordenfelt guns; ram
Speed: 17.8 knots maximum