Editing Valiant-class submarine (section)

==Design==

The class were based on ''Dreadnought'', but were enlarged by 20 feet (6 m) and had a dived displacement of 4,900 tons compared to 4,000 tons. Improvements made since the original ''Dreadnought'' meant that they ran significantly quieter under main power, and also had a [[Paxman (engines)|Paxman]] diesel-electric generator that could be used for [[Silent running (submarine)|silent running]]. In most other respects (outside the power plant), the ''Valiant''s were identical to ''Dreadnought''.

According to former head of the [[Royal Corps of Naval Constructors]] R.J. Daniel, when US Admiral [[Hyman G. Rickover]], widely regarded as the father of the nuclear submarine, initially learned of the proposed rafting system for the ''Valiant'' class, (in which ship's machinery is acoustically isolated from the hull by padding known as "rafts"), he was dismissive of the concept, with the result that the Royal Navy gained an advantage in submarine silencing that the [[United States Navy]] did not introduce until considerably later.<ref name=daniels-2004>{{cite book |pages=134 |url=https://books.google.com/books?id=iDeBCVj_PJQC |title=The End Of An Era: The Memoirs Of a Naval Constructor |first=R.J |last=Daniels |publisher=Periscope Publishing |year=2004 |isbn=1-904381-18-9 |access-date=25 April 2017}}</ref>