Sperry Marine Gyro Navigat X MKI / optical solution

Single unit gyrocompass system
NAVIGAT X MK 1 HSC, Mod. 7, for special applications such as
tugs, AHTS, sailing yachts, with high roll and pitch and/or high
speed crafts, acc. to IMO resolution A.821(19), for connection to
24V DC (18-36V DC) and 115/230V AC, with automatic static and
dynamic north speed error correction, power failure and system
alarm, fully automatic synchronisation of repeater compasses,
follow-up speed 100°/s, with type-approved Rate-of-Turn ourput
according to IMO Res. A.526(13),