Shawbury training in the 70s covered Local (Tower), Director, Approach and PAR. I believe that postings were based on demonstrated performance but I 'failed' the course after a contretemps with one of their 'smiling knife' instructors in the simulator sequence. The 'ground school' and flight line instructors were excellent but the sims were a different breed entirely! 'Chasing the wires' on the PAR was one of life's more challenging exercises!
