Mon, Nov 26, 2007
New System Approved Satellite Navigation Landings
Norway will receive GPS approach
systems at 24 airports after a WIDERØE Dash 8 proved a
satellite based landing approach system works.
The Norwegian airline Dash 8-100 was the first to fly a
certified global navigation satellite system (GNSS) precision
approach last month, according to Flight International.
The turbo-prop was equipped with Universal Avionics' GLS-1250
GNSS twin receivers-processors which were incorporated with the
aircraft's flight management system.
The airliner made history when it flew its approach to Runway 04
at Bronnoysand. The Global Positioning System approach which is
also known as a SCAT-1 or special category 1 had been approved by
Avinor, Norway’s air traffic, and air navigation service
provider, and the European Aviation Safety Agency.
SCAT-1 will be installed where terrain or steep glide slopes
make the use and installation of instrument landing systems
impossible, according to Steiner Hamar, with Avinor’s SCAT-1
program.
Airport-located ground stations provides signal corrections and
assures the aircraft system via a VHF data link engineered by
Norway-based Park Instruments.
What makes this system different are that the SCAT-1 approaches
are based on a local area differential GNSS augmentation that
allows a descent to a Category 1, go--no go--decision height,
according to Avinor officials.
The ground-based augmentation system information works provided
other requirements like runway and approach lighting are also
met.
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