A-class submarine (1903)
Thirteen were built by Vickers at Barrow-in-Furness between 1902 and 1905 as an improvement on the US Plunger class.While there was considerable variation amongst the boats of the class, they were around 100 feet (30 m) long and displaced around 200 tons when submerged.A13 had an experimental 500 bhp (370 kW) Vickers diesel engine, which proved to be unreliable.A1 was sunk off Portsmouth on 18 March 1904, in collision with the liner Berwick Castle, but raised and put back into service before finally being sunk as a naval gunnery target in 1911, followed in 1912 by A3.The remainder were used during World War I for harbour defence, A2 and A4, A5 and A6 at Portsmouth, A8 and A9 at Devonport, and A10, A11 and A12 at Ardrossan.
Amphion-class submarineAstute-class submarinePlunger-class submarineHMS A1VickersBarrow-in-FurnessRoyal NavyHolland classB-classSubmarinepetrol engine18 in (460 mm) torpedo tubestorpedoessubmarinesPlunger classWolseleypetroldiesel engine18-inch (46 cm) torpedo tubesPortsmouthWhitsand BayWorld War IDevonportArdrossanB classList of submarines of the Royal NavyList of submarine classes of the Royal NavyAircraftSeaplane carriersEmpressRivieraEngadineArk RoyalBen-my-ChreeCampaniaRaven IIVindexManxmanFuriousPegasusNairanaVindictiveDreadnought battleshipsDreadnoughtBellerophonSt VincentNeptuneColossusKing George VAgincourtIron DukeCanadaQueen ElizabethRevengePre-dreadnought battleshipsRoyal SovereignMajesticCanopusFormidableLondonDuncanKing Edward VIISwiftsureLord NelsonBattlecruisersInvincibleIndefatigableQueen MaryRenownCourageousAdmiralArmoured cruisersCressyMonmouthDevonshireDuke of EdinburghWarriorMinotaurHeavy cruisersHawkinsLight cruisersArethusaEmeraldProtected cruisersApolloAstraeaEclipsePowerfulDiademArrogantPelorusHighflyerChallengerTopazeScout cruisersAdventureForwardPathfinderSentinelBoadiceaBlondeActiveDestroyer flotilla leadersFaulknorMarksmanParkerThornycroft (or Shakespeare)Admiralty (or Scott)DestroyersAdmiralty MHawthorn MThornycroft MYarrow MYarrow Later MTalismanV and WTorpedo boatsTB 114CricketMonitorsMarshal NeyAbercrombieLord CliveHumberGorgonErebus