How much could a stronger German naval air arm change Jutland if the battle happened nine to twelve months later?
Short answerIt could change history if it sank many capital ships, but the scenario runs into torpedo, range, training, AA, fleet-growth, and operating-space constraints.
NotesAircraft numbers alone do not establish that a stronger German naval air arm could sink eight to fourteen British capital ships. The aircraft would need torpedoes, sufficient payload, and the range to reach a Jutland-style battle area from plausible bases. Delaying the battle by nine to twelve months would also give the Royal Navy more ships, more gunnery training, wider anti-aircraft fits, and additional carrier exercises in the open Atlantic. German forces had less room in the Baltic for equivalent fleet-air integration, so the counterfactual strengthens both sides rather than adding aircraft to an otherwise unchanged battle.