My friend and a great instructor, Desmond Mock, trained at Pensacola and was posted to fly Catalinas from Lough Erne in Northern Ireland, where he became an instructor at Killadeas. While it wasn't done to say so at the time, the Cat crews preferred their Twin Wasps to Merlins which were considered prone to coolant leaks on 22-hour patrols. Postwar he became an instructor on Harvards and Vampires at Cranwell.