NZ
It's quite simple really - I did not stipulate the NT - in an instruction environment with a mix of T&G and FS and GA and RA Aus speeds, intentions on final is too late for ease of spacing and the NAS idea of 'extending the downwind' in such cases takes the student beyond gliding distance and routine approach, not good business particularly when low time. Add in three more a/c and the last one needs a map to get back home
The whole idea of the intentions call on the base turn was to allow commonsense separation and an indication to others in the circuit of where the aircraft was turning base as the wings in the turn made the a/c visible to others at the same height.
404 & elcap
