I want to help everyone fully understand ADS-B as a whole and a big part of that is helping to clear up any misinformation on the technology and the implementation of both the ground based towers and the avionics.
To start, the ADS-B mandate was actually published as FINAL RULE back in May of 2010, in that rule it states that all aircraft operating within a set guidelines of airspace have to be equipped with ADS-B Out Technology by January 1, 2020. That airspace is as follows:
- Class A Airspace
- Any where in the US Airspace System 10,000 feet and above
- Class B Airspace, including the airspace above Class B to 10,000 feet, and including the Mode C ring around this airspace.
- Class C Airspace, including the airspace above Class C to 10,000 feet.
Now the FAA issued this mandate in 2010 with the intent of allowing for a 10 year window to equip, this 10 years breaks down as following:
3 years for Avionics manufacturers to develop and certify product and 7 years to complete the retro fit of some 150K aircraft. To be fair, we the manufactures where closer to the 4 year range for certified products.
Additionally the 10 years allowed time for the implementation of the ADS-B ground infrastructure that today is well past 2/3 completion and will be fully installed and functional in the first quarter of 2014. You can find a map of the current ADS-B coverage here:
http://www.faa.gov/nextgen/flashMap/index.cfm this map is updated periodically and as of August 9, 2013 there where 547 active towers in the United States allowing for that 2/3rds coverage to exist today.
I am extremely familiar with the technology as a whole and will make myself available to anyone that has questions on any of it.
Pete