I’m not sure whether it had an FTU but I did my Approach Radar practical exam at Heathrow in the 70’s whilst going down the Luton/self study route. (Dicky Stokes was one of the examiners).Personally I was very grateful for the way my career panned out through following an ATSA to ATCO path. The grounding in all aspects of aviation served all of us extremely well. There were people at Luton during my time there who would not have been given the opportunity to fulfil their ambitions due to lack of educational qualifications but, because of the self study route and encouragement from Luton enjoyed excellent careers. I enjoyed working with you!