Sperry Navigat X Mk1
The NAVIGAT X MK 1/2 Digital Gyrocompass System is the first of its type to be designed as a single unit and of unparalleded compactness in a polyurethane hard foam housing, is of low weight and allows this gyrocompass to be installed on any bridge, from large yachts to the most capacious merchant marine vessel. 
Ship's cables are connected directly to terminals within the gyrocompass's housing, greatly facilitating installation. All electronic components are plug-in modules, thus providing fast and easy service. Digital heading information is derived as an absolute value from a 13 bit shaft encoder. The NAVIGAT X MK1 has a control and display unit installed in the front access cover. When required, the control and display unit can be removed from the access cover and installed at a location (e.g., bridge console) remote from the gyrocompass.
The unique method of supporting the well-proven Sperry Marine gyrosphere by means of mere buoyancy ensures north stabilization during short power failures.
For operation in extremely heavy seas where highly accurate heading information is absolutely essential, the NAVIGAT X MK 1 Mod 7 marine gyrocompass, equipped with a special gyrosphere container, is recommended. Here, the unique centering pin retaining arrangement for the gyrosphere is mounted in an additional gimbal system, which allows the NAVIGAT X MK 1 Mod 7 marine gyrocompass an almost unlimited freedom of roll and pitch (±90°).
