Aspen Avionics Evolution 1000 Pro/VFR PFD, Руководство пилота

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ADS-B Pilot’s Guide
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Chapter 2
ADS-B Overview
ADS-B or automatic dependent surveillance broadcast which will
become mandatory for most aircraft flying in the USA Jan 1, 2020 began
as a “Capstone” project to improve GA flight safety in Alaska in the late
1990’s. Alaska is one of the largest states, with the smallest populations
but yet has a high pilot population density. The harsh Alaskan
environment led to an average of one aircraft accident every other day
with an accident rate 2.5x higher than the lower forty eight states.
In 1997 the FAA began developing a comprehensive program to improve safety in
Alaska which was rolled out in phases and initially called “Flight 2000”. It was successful
beyond expectations and reduced the Alaskan accident rate 40%. There was also an
unexpected bi product of the project, the ATC work load was reduced 26%.
ADS-B is now a key component in the FAA’s NextGen air traffic control system.
ADS-B is a ground based system that is scheduled to be operational by 2014. At the
core of the system are 700 planned ground stations. (
Figure 2-1
)
There are many parts to the ADS-B puzzle but the simplest way to think about it is
ADS-B Out and ADS-B In. The FAA has mandated ADS-B out for most aircraft flying in the
USA beginning January 1, 2020. Whereas ADS-B In, which provides subscription free
traffic and weather information to suitably equipped aircraft, is not part of the mandate.
Figure 2-1
ADS-B ground stations (March 2014)
(FAA Illustration)