Did Queen Elizabeth reuse Illustrious's weapons handling?

Was Illustrious's weapon-handling system reused in the Queen Elizabeth class?

No. Queen Elizabeth uses an entirely new automated weapon-handling system.

The Queen Elizabeth class did not reuse Illustrious's weapon-handling machinery. Its system is entirely new and automated. The later carrier's internal ordnance movement is therefore a fresh design rather than a direct carryover from the Invincible lineage.