EVERGREEN International Airlines has replaced the inertial-navigation system (INS) in a Boeing 747-100 freighter with a triple global-positioning system (GPS) installation, the first INS replacement by GPS in a 747.
The installation of three Trimble TNL-8100 GPS navigation systems in the 747 was certificated by avionics-engineering firm Canard Aerospace. The aircraft has now been flown on a round-the-world flight, using GPS as the sole means of navigation, Trimble says.
Evergreen sees the installation of GPS "...as a big investment in flight safety, which will yield economic and performance-quality dividends for decades to come".
Source: Flight International
