Panel Specifications

• Device Dimensions: Approximately 159 mm x 47 mm

• Required Cut-out Size: Approximately 154 mm x 42 mm

• Mounting Hardware: Use M3.5 or #6 bolts/screws along with adequate battens or brackets

> Note: All provided dimensions are approximate. It is essential to verify the measurements of your K140 Autopilot prior to installation to ensure proper clearance and fitment.

Step 1: Panel Preparation

1. Accurate Measurements: Confirm the physical dimensions of the K140 Autopilot. Ensure that the designated installation area provides ample space for secure mounting.

2. Determining the Cut-Out: Plan an opening that is approximately 5 mm smaller in both width and height than the front panel. This precise sizing enables the rear of the device to pass through while keeping the front panel flush with your cockpit.

Step 2: Mounting the Device

1. Create the Opening: Carefully cut an opening that matches the specified dimensions. Precision in this step minimizes gaps and ensures a professional finish.

2. Secure Installation: Insert the K140 Autopilot so that its front aligns flush with the panel. Fasten the device securely using the four designated mounting screw holes (two per side) attached to steadfast battens or brackets.

Step 3: USB Cable Connection

1. Cable Attachment: Once the device is mounted, connect the micro USB cable.

2. Ensuring Strain Relief: Secure the cable using a zip tie or similar restraint to prevent stress on the USB port, thereby enhancing durability.

3. Connector Requirements: Panels thicker than 2 mm require a 90° down adapter or an integrated 90° micro USB cable to guarantee that the cable exits perpendicular to the circuit board.

Status Indicators

• [YD] Status Indicator:

  • Red: The device is not connected.

  • Orange/Yellow: No valid data is being received from the X-Plane plugin

  • Under either condition, the display and backlighting will be off

• On connection:

  • The display will show at least the preselected altitude when the device communicates with X-Plane and detects power from the aircraft’s avionics system. If simulated aircraft power is not supplied, both the display and indicator lights will remain off.

Autopilot Operation

The K140 Autopilot is designed to emulate the Bendix/King KAP 140 system, supporting two-axis control along with altitude preselect capabilities. When used with aircraft configured for a KAP 140 autopilot, much of the original KAP 140 Pilot's Guide and external tutorials remain applicable.  When used with an aircraft configured with an autopilot capable of pitch hold, the autopilot will also exhibit pitch control features similar to a KFC 225 autopilot.

Reboot Procedure

A hard reboot can be accessed through a small opening located above the UP button. To prevent damage, utilize a non-metallic implement (for example, a wooden toothpick) to press the reset button. This feature facilitates firmware updates.

Compatibility Mode

To ensure enhanced interoperability with various autopilot configurations, you may enable the K140 compatibility mode via the system configuration (see the Config and Overrides ” section for further details).

Customization

• Custom Configuration: Advanced users can modify the plugin’s AVNAVSIM.ini file. Customization options include:

  • Configuration Overrides: Adjust device settings such as disabling voice trim alerts or customizing the backlight color.

  • Data Overrides: Remap critical data references, such as linking backlight intensity to cockpit lighting controls.

  • Command Overrides: Redefine button mappings to link specific functions with X-Plane commands or tailor them for specific aircraft.

See Config and Overrides for more details

• Cleaning: Clean the device using only a soft microfiber cloth. Avoid abrasives, solvents, and liquids that could potentially damage the component.