First F4 flight in Jan 69, but didn't fly the F4 sim till Aug 71. So F4 sim not around at the start, but not sure when it arrived as I was in RAFG when it di. As I remember, there was a general flying area in which we could low fly and a more accuate area around Coningsby for approaches. I don't seem to have logged any official low level nav sorties (only emerg and PIs), but can remember rushing around the model. It was possible to crash the camera into the model which made one unpopular! The model consisted of 2 large (estimate 10' * 30') - anyone have a more accurate size? As stated the modelling was impressive, and on the Coningsby model ground features were recogniseable. The other model was more generic