HMS Polyphemus (1881) HMS Polyphemus (1881) 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. Designed by Nathaniel Barnaby primarily as a protected torpedo boat, the ram was provided very much as secondary armament. It has been suggested that H. G. Wells’ fictional HMS "Thunder Child" from his novel "The War of the Worlds" may have been based on this ship, in part because he described "Thunder Child" as an ironclad torpedo ram, and "Polyphemus" was the only ship
HMS Thunder Child appearing as a typical pre-dreadnought battleship of the era. The real torpedo ram HMS "Polyphemus" was fast, heavily armoured for her size, and capable of operating in shallow coastal waters; her hull was low in the water with a raft-like superstructure mounting six 1-inch Nordenfelt guns, again very much unlike a pre-dreadnought battleship. In Wells' original novel the battle takes place off the mouth of the River Blackwater, Essex, where internally displaced persons from London are escaping the Martian offensive. Three Martian fighting-machines having approached the vessels from the seaward side, HMS "Thunder Child" signals to the main fleet and