 Nyorai kupfuurira kweiyi ndima - Ngarava dzeInvincible-class ndidzo dzaiva ngarava dzokutanga dzehondo munyika. Kugadzirwa kwacho kwakanga kwakafanana nekwaHMS Dreadnought, asi kwakabayira dziviriro yezvombo uye imwe pfuti yezvombo kubva mubhatiri guru nokuda kwekukurumidza. Mukati mehondo Inflexible uye Indomitable vakapinda mukutsvaga kusingabudiriri kwezvikepe zveGerman Goeben uye Breslau muMediterranean. Inflexible yakadzoserwa kumusha nguva pfupi yapfuura, asi Indomitable yakaramba iri paDardanelles kuti iite kuti ngarava dzeGermany dzisasvike kwegore ra1914 risati rasvika kuUK. Invincible uye Inflexible dzakatumirwa kuSouth Atlantic mukupera kwa1914 kunovhima German East Asia Squadron ndokuiparadza muHondo yeFalkland Islands. Indomitable yakapinda muhondo yeDogger Bank muNorth Sea mukutanga kwa1915 apo Inflexible yakakuvadzwa zvikuru mukati mematanho ekutanga eDardanelles Campaign. Ngarava idzi dzakaumba 3rd Battlecruiser Squadron paJutland apo Invincible yakaparadzwa nokuputika kwechinyorwa chezvombo. Ngarava mbiri dzakapona dzakapedza nguva yasara yehondo dzichifambisa ngarava dzeNorth Sea, sezvo High Seas Fleet yakarambidzwa naKaiser kuisa pangozi chero kurasikirwa. Vakaiswa muzvigadziro mukuvamba kwa 1919 uye vakatengeswa nokuda kwechigamba pana 1 December 1921. 