Now we're getting it
Lodown,
Linking the two is paramount; as we are a long way off getting ADS-B, much testing, much debate, much budgeting required etc.
Phase 3 and onwards delayed until the further roll out of ADSB technology is my mail.
So we should have further stages of NAS by 2008.
First we get 'full' (with holes) coverage at FL350; then when we prove it works, we get all jet's fitted etc. Then we need approval for the third stage of ADSB. Total coverage of all 'radar' blind spots. Massive cost, $100M... benefit? Will it happen. Safety vs Cost? Who pays?
Bringing all this onto the TAAATS platform takes much time, software development, ATC traning, sector re-design standard evalutation etc.
NAS is linked to ADSB, no question.
Bottle of rum