The Revenge class, sometimes referred to as the Royal Sovereign class or the R class, consisted of five Dreadnought battleships built for the Royal Navy in the 1910s. All of the ships were completed to see service during the First World War. There were originally to have been eight of the class, but two were later redesigned, becoming the Renown-class battlecruisers, and another, which was to have been named HMS Resistance, was cancelled outright. The design was based on that of the preceding Queen Elizabeth class, but with reductions in size and speed to make them more economical to build.