Our strapdown Inertial Navigation System SINS-500 are based on TRS-500 FOGs, precise accelerometers and board computer. These SINS are combined with GPS/GLONASS K1-161 receiver. Fiber-optic strapdown inertial navigation systems have complete solid-state design with no rotating or other moving parts. Designed for use onboard air, and subsea vehicles, strapdown inertial navigation systems are compact, robust and maintenance-free, low-consumption units.