Avionics News July 2017 - 48
The sum of all
S T O R Y
D A V I D
H U G H E S ,
Plans to create a PBNcentric NAS - one of
NextGen's primary goals
- are outlined in the PBN
NAS Navigation Strategy
2016, which details
objectives from 2020 to
2030 and beyond.
The FAA has already
published more than
9,000 PBN procedures
* PBN procedures and
routes save time and fuel
while reducing emissions
and government spending
on ground-based navaids.
F A A
N E X T G E N
O U T R E A C H
A N D
R E P O R T I N G
extGen is on track and delivering benefits
to aircraft operators. A prime example of
how the Federal Aviation Administration's
modernization program is transforming the national
airspace system is a nationwide network of more than 9,000
performance-based navigation procedures and routes.
PBN benefits for general aviation aircraft operators
include improved access to many general aviation airports
during reduced visibility.
PBN is an advanced, satellite-enabled form of air
navigation that creates precise 3-D flight paths. If an
aircraft relies on satellite positioning with GPS or wide
area augmentation system, its avionics can navigate a flight
path with much greater precision and accuracy than with
legacy navigational systems. GPS and its augmentation
systems constitute what is known internationally as a global
navigation satellite system.
PBN procedures require various avionics capabilities
depending on the level of navigation precision involved.
Because of mixed equipage, not all aircraft can fly the
most-demanding types of PBN procedures. New aircraft
usually have the latest avionics while older aircraft have a
mix of avionics of various ages and capabilities. Replacing
aging equipment can prove too expensive for some aircraft
operators and may lead to an aircraft being retired. In other
cases, an aircraft's existing equipment may be adequate for
the types of flight operations planned.