Naval Inertial Navigation Family

INS/GNSS Navigation and Stabilization System

The NAUTILUS family of strapdown Fiber Optic Gyro (FOG) Naval Inertial Navigation Systems (INS) is designed for performance scalability up to high-grade position accuracy and long endurance missions.

The proprietary ITAR-free FOG-based sensor technology coupled with advanced state estimation techniques based on Kalman Filter algorithm, provides the best-value solution for Gyrocompss, AHRS (Attitude Heading Reference Systems) and Positioning in an all-in-one maintenance-free product, compact, light and reliable.

Specifically aimed at maritime navigation, NAUTILUS family is engineered to guarantee performance in severe environments, both with or without GNSS and Speed Log aiding, and to allow flexible and easy integration in retrofit programs and in new vessels installations.

Characteristics NAUTILUS 4000 NAUTILUS 3000 NAUTILUS 2000 NAUTILUS 1000
Heading (RMS) < 0.025° sec LAT < 0.05 sec LAT < 0.1 sec LAT < 0.5 sec LAT
Roll/Pitch (RMS) < 0.01° < 0.01° < 0.01° < 0.1°
Heave (RMS) < 2.5 cm or 2.5% < 5 cm or 5% < 5 cm or 5% N.A.
Position (CEP50) < 1 nm/8hr < 1 nm/2hr < 4 nm/hr N.A.
Alignment time (data availability) 10 minutes 10 minutes 10 minutes 10 minutes
Alignment time (full accuracy) 30 minutes 30 minutes 30 minutes 30 minutes
IMO (MED/96/98/EC) compliant compliant WheelMark compliant

System Characteristics


Data output rate up to 100 Hz
Input/Output Standards Binary/NMEA0183
Power requirements 28VDC (18-36VDC) < 15 W

Environmental and Reliability

Operating Temperature -20°C to +55°C
Storage Temperature -40°C to +80°C
EMC/EMI MIL-STD-461F or IEC 60945
Vibration MIL-STD-167-1A or IEC 60945
MTBF > 45000 hours
Waterproofness IP66


W x H x D 151 x 161 x 286
Weight 8.5 Kg