NAVIGATION SYSTEMS – GENERAL
The navigation system is integrated in the PRIMUS EPIC® avionic system
and includes the following sub-systems:
• FLIGHT ENVIRONMENTAL DATA
The system includes:
• Two Air Data Systems (ADS 1 and ADS 2) to provide airspeed,
barometric altitude, vertical speed and outside air temperature
• One Standby Outside Air Temperature Indicator
• ATTITUDE AND DIRECTION
The system includes:
• Two Attitude and Heading Reference Systems (AHRS 1 and AHRS
2) to provide attitude and heading reference data
• One Standby Magnetic Compass
• One or two Electronic Standby Instruments
• LANDING AND TAXIING AIDS
The system includes:
• One or two Radio Altimeter (RAD ALT) systems
• Two VOR/ILS/MB (VHF-NAV) system
• DEPENDENT POSITION DETERMINING
The Dependant Position Determining system uses ground stations
and/or orbital satellites to find the helicopter position and velocity. The
Dependant Position Determining system includes:
• One or two Distance Measuring Equipment (DME)
• One or two Air Traffic Control (ATC) Transponder (XPDR)
• One or two Automatic Direction Finder (ADF)
• One or two Global Positioning System (GPS)
• FLIGHT MANAGEMENT SYSTEM (FMS)
The FMS combines the inputs of different aircraft systems (GPS, DME,
VOR, AHRS and ADS) to provide navigation, lateral and vertical
commands and aircraft performance predictions.
• INDEPENDENT POSITION DETERMINING (optional)
The system can determine the helicopter position without using ground
stations and/or orbital satellites. The Independent Position Determining
system may include:
• Weather Radar System (WX)
• Lightning Sensor System (LSS)
• Enhanced Ground Proximity Warning System (EGPWS)