Space

Embedded GPS/Inertial Navigation System (EGI)

The H-764G EGI program is a tri-service, United States Air Force led effort to provide an integrated navigation solution for aircraft equipped with a MIL-STD 1553 digital data bus. The EGI embeds a 5 channel GPS receiver into a ring laser gyro inertial navigation system, making the total system weight only 17.9 pounds. The mean time between failure is guaranteed by the manufacturer to be at least 6,500 hours. The EGI will provide extremely precise location to the aircraft fire control computer or integrated system processor for processing targeting information/sensor prepointing. The EGI is the objective,fully digitized GPS solution for the scout/attack helicopters.