On Tue, 04 Sep 2007 00:06:51 -0000, wrote in
om:


ADS-B provides a lot of benefits for pilots. Situational awareness
with regard to other traffic and weather without having to install
TCAS, TPAS, or XM Weather. If they do it right the ADS-B box will
cost less than $10K and will interface with most moving map displays
(expect software updates from all the vendors to support it).



http://www.faa.gov/about/office_org/...0-07_Final.pdf
http://tinyurl.com/yuy6bt
How much will it cost general aviation to equip?
The cost to equip a general aviation aircraft ranges from $7,644
to $10,920 for ADS-B "Out" [where data are transmitted OUT of the
aircraft's transponder] and from $10,444 to $29,770 for ADS-B
"Out" and ADS-B "In" depending on aircraft type. It is expected
that most general aviation operators will desire the ADS-B
“In” services. However, the unit costs for general aviation are
expected to drop 30 percent after the introduction of the final
rule mandating ADS-B avionics equipage. The final rule is targeted
for fall of 2009. ...

Will there be a rule mandating avionics equipage needed for ADS-B?
The agency expects to issue a notice of proposed rulemaking that
would mandate the avionics necessary for implementing ADS-B across
the national airspace system. This proposed rule is targeted for
release in September 2007. The FAA hopes to issue the final
rule in late 2009. This rule will be structured much like today’s
transponder rule, so that ADS-B avionics will be required to
operate in controlled airspace and the busy terminal airspace
around major airports. Aircraft owners who don’t plan to fly in
the ADS-Brequired airspace will not have to equip; however, those
that do will benefit from cockpit displays of traffic, weather,
and terrain maps that will help them fly more safely.

How will the move from radars to ADS-B be coordinated?
Under the contract, the FAA expects by 2010 to be able to
“commission” ADS-B services for use in the national airspace
system, and by 2013 to have coverage everywhere there is now radar
coverage. The full evolution of ADS-B will take about 20 years,
taken in manageable segments of equipage and ground-station
installation, with about half of the legacy radars maintained
throughout to provide a back-up in case of a GPS outage. Benefits
in improved safety and efficiency will accrue with each step of
the implementation.