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The launch of HMS Warrior, with her combination of screw propeller, iron hull and iron armour, renders all previous warships obsolete.
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HMS Warrior (1860)
Warrior-class ironclad steamship of the Royal Navy (in service 1861–83)
HMS Warrior is a 40-gun steam-powered armoured frigate built for the Royal Navy in 1859–1861. She was the name ship of the Warrior-class ironclads. Warrior and her sister ship HMS Black Prince were the first armour-plated, iron-hulled warships, and were built in response to…Source: Wikipedia (CC BY-SA)
Propeller
Device that transmits rotational power into linear thrust on a fluid
A propeller is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air. Propellers are used to pump fluid through a pipe or duct, or to create thrust to…Source: Wikipedia (CC BY-SA)
Ironclad warship
Steam-propelled warship protected by armor plates
An ironclad was a steam-propelled warship protected by steel or iron armor constructed from 1859 to the early 1890s. The ironclad was developed as a result of the vulnerability of wooden warships to explosive or incendiary shells. The first ironclad battleship, Gloire, was…Source: Wikipedia (CC BY-SA)
December 29
Day of the year
December 29 is the 363rd day of the year in the Gregorian calendar; two days remain until the end of the year.Source: Wikipedia (CC BY-SA)