Some Operation Downfall forecasts assumed Japanese attackers would penetrate the American fighter screen more effectively during an invasion. Wartime advocacy for the Midway class sometimes portrayed British armoured carriers as invulnerable. No battleship or carrier could be made immune to every weapon. British design instead sought to resist weaker attacks, absorb more dangerous damage, and leave a ship that could be repaired. Survivability was measured by continued or restored usefulness after harm.
Notable Point · 34:33-36:09
Carrier survivability and the limits of protection
Armoured British carriers were designed to limit damage and return to service after attacks whose effects no ship could escape completely.