How long would the British battlecruisers lost at Jutland have remained out of action if they had survived their damage?
Short answerRoughly six months to a year, with the final repair decision influenced by the arrival of Renown and Repulse.
NotesThe counterfactual assumes Invincible, Indefatigable, and Queen Mary survive their catastrophic hits at Jutland. Repairs would probably last roughly six months to a year. British yards could complete the work, but Renown and Repulse entering service would reduce the urgency of restoring every older ship. Retaining fleet numbers might still justify repair, so replacement timing matters as much as technical feasibility.