Fleet-carrier anti-submarine patrols and the loss of Courageous

What was the Royal Navy's experience of using fleet carriers for anti-submarine warfare?

The loss of Courageous is the cautionary example.

Courageous is the immediate cautionary example for fleet-carrier anti-submarine patrols. Her loss challenges the suggestion that fleet carriers were an obvious answer to the Atlantic submarine threat. The brief comparison concerns those early patrols, without assessing the later escort-carrier campaign.