An Inertial Navigation System (INS) determines position, velocity, and orientation using only internal motion sensors, enabling precise navigation across a wide range of applications—including autonomous systems, underwater platforms, and mission-critical defense operations.

The LN-200 series Fiber Optic Gyroscope (FOG) IMU has long been regarded as a reliable, battle-tested solution for tactical-grade inertial navigation. Deployed across thousands of platforms in aerospace, defense, and advanced guidance systems, it continues to serve missions where rugged performance is critical.

The STIM300 is a tactical-grade MEMS IMU designed for high-precision applications in defense, aerospace, and autonomous systems. With gyroscope bias instability as low as 0.3°/h, it delivers strong performance in a compact and rugged form factor. While it stands out for its stability and export flexibility, its high cost and lack of integrated features may be limiting for some use cases.

MEMS IMUs are smaller, lighter, and more cost-effective, making them ideal for space- and power-constrained systems. FOG IMUs, by contrast, deliver significantly better bias stability, lower drift, and superior performance in harsh or GNSS-denied environments.

Discover the top 10 fiber optic gyroscope manufacturers in 2025, including industry giants and lesser-known yet high-quality brands. Find out which companies offer precision, cost-effective solutions, and ITAR-free products for your aerospace, defense, or industrial needs. Explore expert insights and comparisons now!

Fiber optic gyroscopes (FOGs) are classified into three levels: Tactical-grade ($3,000–$8,000): Used in UAVs, ground vehicles, and basic stabilization systems; Navigation-grade ($8,000–$20,000): Common in maritime navigation, survey equipment, and autonomous systems; Strategic-grade ($20,000–$100,000+): Deployed in missiles, submarines, and high-end aerospace platforms.