Indeed Lon, Terry Thomas was in charge of us lowly ATCA 3's when I joined. He got a class to class and was the principal trainer for FISO's in preparation for them doing the FIR.
One of my early stints on the FIR was with Ian MacIntosh. We were filmed for a training film in which I had to hand him a slip of paper from which he read out the Hurn weather. The back of my head (with hair in those days) was clearly visible in the finished product.
Anyone remember an assistant called Arthur (don't remember his surname); was always incident prone; 'tache similar to Spud Murphys