How do I fix swapped CH propeller and mixture axes in FSX?

Swapped propeller and mixture levers on a CH Throttle Quadrant are almost always caused by two incorrect axis assignments in FSX or FSX: Steam Edition. In Settings > Controls, select the CH device, delete every propeller and mixture binding, then reassign each function by moving only its intended lever. Axis labels alone are unreliable.

How do I remap the propeller and mixture levers?

The reliable method is to clear both functions before assigning either one again. Replacing only the visibly wrong assignment can leave an old generic, engine-specific or duplicate binding active.

1. Select the active CH controller. Connect the quadrant before starting FSX, open Settings and Controls, then choose the CH device from the controller list. If both a physical CH device and a mapped virtual device appear, configure only the one FSX is actually receiving.
2. Open Control Axes. Locate all propeller and mixture entries, including numbered controls such as Propeller 1 Axis and Mixture 1 Axis.
3. Delete the existing assignments. Clear every generic and engine-specific propeller or mixture axis from the CH quadrant. Check the other listed controllers as well; FSX can create automatic assignments for a joystick, gamepad or newly detected device.
4. Assign each propeller lever. Select the required propeller axis, start a new assignment and move only the intended lever through most of its travel. Keep the other levers still so that a noisy axis is not detected first.
5. Assign each mixture lever. Repeat the process for the mixture axis or numbered mixture axes.
6. Set the direction. Pulling a propeller lever back should reduce the propeller control, while pulling a mixture lever back should lean it. Use Reverse only when the correct function moves in the wrong direction.
7. Check sensitivity and null zone. Maximum or near-maximum sensitivity with little or no null zone normally gives the full lever range. Add a small null zone only when the reported position jitters.
8. Inspect button assignments. CH levers can operate buttons below their detents. Remove unintended propeller increase, propeller decrease, mixture rich or mixture lean commands that could override the analogue axis.
9. Save and test. Confirm the changes, reload the aircraft if necessary and watch the virtual cockpit levers while moving each physical control separately.

The coloured lever caps do not define the electronic axes; they can be removed and rearranged. Names such as X Rotation, Y Rotation and Slider may also differ with the controller mode, so identify a lever by moving it rather than trusting its cap or Windows axis name.

Which FSX propeller and mixture axis entries should I use?

Use generic axes when one lever should operate all engines together, and numbered axes when each engine has its own lever.

A standard six-lever twin-engine arrangement is normally throttle 1 and 2, propeller 1 and 2, then mixture 1 and 2. Do not assign both the generic and numbered version of a function to the same physical lever, and do not use increase/decrease commands for an analogue axis.

Is a reversed axis the same as a swapped axis?

No. A swapped axis operates the wrong function; a reversed axis operates the correct function in the wrong direction. Reassign propeller and mixture first, then reverse only the axis whose direction is incorrect. Our explanation of swapped functions versus reversed controller direction covers the distinction in more detail.

Why is there no change after I remap the axes?

If there is still no change after remapping—the fix no ha funcionado, or has not worked—FSX is usually reading a different controller, receiving duplicate input or being overridden by another control system.

1. Test the quadrant in Windows. Open the Windows game-controller test panel and confirm that every physical lever produces movement. If the device is missing, has a restricted range or switches between direct and mapped modes, follow our CH Products detection and calibration checks for Windows 11.
2. Confirm the selected controller. Return to FSX and check the controller list again. CH Control Manager profiles can make FSX see a virtual controller instead of the physical quadrant.
3. Inspect every connected device. A joystick, yoke, gamepad or virtual controller may still have its own mixture or propeller axis. Use these duplicate-axis and controller-assignment checks if several devices appear in FSX.
4. Choose one assignment system. If FSUIPC handles the levers, remove the matching assignments from FSX. If FSX handles them, clear those axes from FSUIPC. For independent engine controls, use the FSUIPC method for separate engine levers rather than configuring both layers.
5. Test a suitable default aircraft. Use the default Baron 58 or another piston aircraft with constant-speed propellers and manual mixture controls. Disable FSX's automatic-mixture assistance for this test.
6. Reset controls only as a last resort. If FSX will not accept any new assignment, record or back up your custom bindings before restoring the controller defaults, then rebuild the CH mappings from scratch.

Why do the axes become swapped again after restarting FSX?

Assignments that return after a restart usually indicate that FSX has detected another device instance or loaded a second input layer.

• CH Control Manager changed mode. Direct mode and mapped mode can present different controllers to FSX. Pick one mode and configure the corresponding device.
• The USB connection changed. Moving the quadrant to another port can cause Windows and FSX to treat it as a newly detected controller and add default bindings. Use the same port where practical, then inspect every controller entry after reconnecting it.
• An FSUIPC aircraft profile loaded. A profile-specific assignment can replace or compete with the axes configured in FSX.
• The controls configuration was not retained. After changing assignments, close the settings screen normally and exit FSX normally. If every change disappears—not just the CH axes—the simulator may be unable to save its controls configuration.

What if the cockpit still ignores correctly assigned axes?

The aircraft must support standard propeller and mixture controls before these axes can produce a useful response.

• A fixed-pitch aircraft has no controllable propeller axis, even if FSX accepts the assignment.
• A turbine aircraft may use condition levers or add-on-specific commands instead of the conventional mixture axis.
• An advanced add-on may replace standard FSX axis handling with its own configuration system.
• Automatic-mixture assistance can override or mask manual mixture input.
• At low engine power, moving a constant-speed propeller control may produce little immediate RPM change. Check the cockpit lever animation before assuming the axis has failed.

If each CH lever moves the correct cockpit control in the default Baron 58, the quadrant and FSX assignments are fixed. A fault confined to one add-on then lies with that aircraft's control logic or required configuration, not with swapped CH axes.