Ki 256 Installation Manual -

Runs internal lighting overlays and logic flags.

Mount within ±5° of aircraft longitudinal and lateral axes. Maximum angular misalignment: 2° in pitch and roll.

KI 256 Installation Manual: Guide to the BendixKing Flight Command Indicator

Mount the instrument directly in the pilot’s primary view. Ensure there is at least 2 inches of clearance behind the unit for the vacuum hose bend radius and wire harness routing. ki 256 installation manual

The KI 256 was standard or optional equipment in numerous light to medium business aircraft from manufacturers like Piper.

Turn on the autopilot system in "Attitude Hold" mode on the ground.

Cause: Broken excitation signal path or miswired pickoff reference lines. Fix: Check for 400 Hz AC voltage on Pins B and C. Runs internal lighting overlays and logic flags

Use shielded MIL-W-22759/16 wire. Connect to aircraft via MS3112E14-18P (mating connector: MS3116F14-18S).

| Pin | Function | Signal Type | Wire Gauge | |-----|----------------------|----------------------|------------| | 1 | Power Input (14V or 28V) | DC Power | 22 AWG | | 2 | Power Ground | Ground | 22 AWG | | 3 | Pitch Gyro Signal (3.8V RMS) | 400Hz AC | 24 AWG shielded | | 4 | Pitch Gyro Reference | 400Hz AC Return | 24 AWG | | 5 | Roll Gyro Signal | 400Hz AC | 24 AWG shielded | | 6 | Roll Gyro Reference | 400Hz AC Return | 24 AWG | | 7 | Slip/Skid Sensor (+/- 150mV) | DC Analog | 22 AWG twisted | | 8 | Slip/Skid Return | DC Ground | 22 AWG | | 9 | No Connection | N/A | N/A | | 10 | Flight Director Pitch (Command) | 0-5V DC | 22 AWG shielded | | 11 | Flight Director Roll (Command) | 0-5V DC | 22 AWG shielded | | 12 | Synchro Stator C (Roll) | 26V 400Hz | 24 AWG | | 13 | Synchro Stator B (Roll) | 26V 400Hz | 24 AWG | | 14 | Synchro Stator A (Roll) | 26V 400Hz | 24 AWG | | 15 | Lighting Power | 5V or 14V AC/DC | 22 AWG |

: Installed in the primary flight instrument cluster. Precise alignment is required to ensure the gyroscope erects correctly relative to the aircraft's longitudinal axis. 3. Electrical Interconnects KI 256 Installation Manual: Guide to the BendixKing

If you can tell me the (e.g., KFC 150 or KFC 200), I can provide a more detailed wiring description from the corresponding manual.

Advanced analog and digital legacy systems requiring valid gyro reference voltage. Technical Specifications Overview

The successful installation of the KI 256 requires careful attention to pre-installation requirements, mounting, electrical connections, configuration, and calibration. Following these steps and consulting the user manual will ensure optimal performance and accuracy of the instrument.

Connect the vacuum supply to the intake port on the rear of the chassis. Use a 1/4-inch flexible hose certified for aviation use. Secure the hose with a approved clamp to prevent pressure leaks. Electrical Wiring and Pin Configuration