Originally Posted by
whowhenwhy
The previous system still included many differences to ICAO SARPS & PANS though and really was not that different from the arrangements that we have today.
One of the problems with today's arrangements is that we've permitted the use of surveillance under a BS. Straight away this introduced blurring between BS and TS and thus confusion and by doing so undermined the main reason that we made the change in the first place.
For me there is no blurring but a distinct difference in the application of TS and BS. Perhaps Unit standards and the Unit Assessors need to be more pro-active. Surveillance under a BS / FIS has been going for 30 years so not sure what point you're trying to make there WWW?? Otherwise what the hell are you supposed to do with the BS service transit crossing you're final approach when you're vectoring inbound. With APS you can ID co-ord and carry on.
I'm really struggling to see the validity or relevance of "
One of the problems with today's arrangements is that we've permitted the use of surveillance under a BS" as that is so far from reality. With Mode S and listening squawks it really allows approach radar to deal with the plethora of other aircraft operating within the vicinity of the aerodrome and it's approach paths easier, safer and minimises distractions and reductions in capacity.