The NAVIGAT 2500 fiber optic gyro compass model has a clear advantage over spinning mass gyro compass models as it has no moving parts, no maintenance during service life, no north speed error, a short settling time and output for roll and pitch.

Safety is increased as a result of the high dynamic accuracy associated with the lack of north speed error. This is particularly valuable for high-speed craft at high latitudes during frequent manoeuvers.

NAVIGAT 2500 CompassNet specifications:

  • Sensor performance:

                  - Heading                          ≤ 0.23 deg secant latitude RMS
                  - Rate of Turn                   ≤ 0.06 deg/ min
                  - Roll/Pitch angle            ≤ 0.5 deg RMS                 

  • FOG technology with High Mean Time Between Failure (MTBF) of 150,000 hrs and long lifetime
  • Power supply: 24 VDC main and back-up
  • Common user interface device NAVITWIN V to setup entire compass system
  • 12 sensor data outputs, configurable to user needs, incl. Printer output functionality
  • 8 repeater ports providing serial sensor data and power supply for heading repeaters
  • One analogue rate-of-turn output
  • One bi-directional INS compliant interface acc. IEC 62924-2
  • Fluxgate or serial input for connection of magnetic compass
  • 8 serial inputs for GNSS, Speed Log, Rudder Angle, Set Heading
  • All required alarm interfaces, serial and dry contact
  • DNV MED type approved Heading Sensor (standard and high speed application) and Rate of Turn Indicator System (acc. ISO 8728, 16328, 20672)


For more information about Northrop Grumman Sperry Marine’s NAVIGAT 2500 CompassNet System, please contact us.