What if Germany completed Gneisenau and Tirpitz as carriers alongside the battleships Scharnhorst and Bismarck?
Short answerGerman task groups become more capable, especially in Norway, but Britain responds with more and earlier armored carriers, limiting the strategic payoff.
NotesThe scenario is clarified as converting one ship of each German pair: Scharnhorst remains a battleship while Gneisenau becomes a carrier, followed by Bismarck and a carrier version of Tirpitz. That costs Germany half of those surface capital ships, rather than simply adding carriers to the historical fleet. Earlier carrier service could favor a purpose-designed biplane fighter with performance comparable to the Sea Gladiator and the Fieseler Fi 167 torpedo bomber. The Norwegian campaign could then put Scharnhorst into action against Renown while both sides call for carrier strikes. Fi 167s and Swordfish arriving during the gun action would force both ships to manoeuvre against aircraft as well as shellfire. Britain would also alter its carrier employment and construction, so greater German tactical capability would bring a stronger opposing response.