For decades, the has been a cornerstone of the general aviation panel. As the primary attitude indicator for the KCS 55 and KCS 55A compass systems, this 2-inch, remote-mounted vertical gyro provides pitch and roll data to flight instruments and autopilots like the KAP 150 and KFC 200.
However, finding a complete, clear can be a challenge. Honeywell (which acquired Bendix/King) has moved much of this legacy documentation to paid archives. This article serves as a comprehensive technical reference, covering the essential installation data, wiring pinouts, rack mounting, alignment procedures, and post-installation testing derived from the original King manuals. ki 256 installation manual
Remember: A KI 256 that fails in IMC (Instrument Meteorological Conditions) is a serious safety hazard. Take the extra hour to rig it properly, torque the shock mounts, and verify the flag circuit. Your autopilot and your passengers will thank you. For decades, the has been a cornerstone of