Learn how to assign reverse thrust to each engine, calibrate axes or gates, and stop every engine entering reverse together.
Assign each physical reverse lever or gate to the matching numbered reverse-thrust control—engine 1 to reverse 1, engine 2 to reverse 2—and remove any combined reverse binding. In Microsoft Flight Simulator, X-Plane, FSX or Prepar3D, use a full-range axis instead where supported, calibrating each engine separately through idle into reverse.
Engine numbers refer to the aircraft, not the order in which USB devices appear. On a conventional twin, the left lever normally controls engine 1 and the right lever controls engine 2.
Which reverse-thrust binding should I use?
Choose the binding according to what the hardware actually sends, not how the lever looks. A control marked REV may be an analogue axis, a maintained switch or a button that sends one short pulse.
| Hardware input | Best binding | When to use it |
|---|---|---|
| Lever travelling through idle into reverse | Full-range numbered throttle axis | Use when the simulator or aircraft supports a reverse range below the idle detent. |
| Separate analogue reverse lever | Numbered reverse-thrust axis | Use when the reverser produces a variable axis rather than a simple on/off signal. |
| Gate with a maintained switch | Numbered hold-reverse command | Reverse remains selected while the gate switch is closed and cancels when it opens. |
| Momentary push-button | Numbered reverse toggle | One press selects reverse and another cancels it. |
A toggle command is usually wrong for a maintained gate because opening the gate may not cancel reverse. Our comparison of reverse-axis, hold and toggle bindings explains when each control type makes sense.
How do I assign each engine's reverse control?
- Create a dedicated control profile. If the simulator supports aircraft-specific profiles, use one for the aircraft or throttle type being configured. This prevents a jet's reverse gates from interfering with a turboprop's beta range.
- Assign the forward throttle axes first. Map the first physical lever only to engine 1, the second only to engine 2, and continue in order for three- or four-engine aircraft. Remove the combined all-engine throttle axis unless it is deliberately assigned to another control.
- Check what each reverse gate sends. Use the simulator's input search or activity indicator. A smoothly changing value is an axis; a single on/off indication is a button or switch.
- Map matching numbered reverse controls. Assign the first gate to the engine 1 reverse axis or command and the second gate to engine 2. Do not use an unnumbered global reverse command if independent operation is required.
- Calibrate idle and reverse. Set each idle point so the engine settles at idle without flickering into reverse. Add only enough dead zone to stop input noise, then calibrate the reverse endpoint. Invert an axis only when its input indicator moves in the wrong direction.
- Test one engine at a time. Park on the ground, set the parking brake and let both engines stabilise at idle. Operate only the first reverser and check the cockpit lever and engine indication, return it to idle, then repeat with the second.
With command-based systems, selecting reverse may simply change how that engine's normal throttle axis behaves; the command itself does not always set reverse power. This is why each reverse gate must be paired with the corresponding numbered throttle axis.
Simulator-specific differences
| Simulator | Practical approach |
|---|---|
| Microsoft Flight Simulator 2020 and 2024 | Use numbered engine axes and numbered reverse commands where the aircraft supports them. Labels and profile screens differ between releases and hardware; our MSFS reverse-thrust binding guide covers the available methods. |
| X-Plane 11 and 12 | Assign numbered throttle axes, then configure the reverse range or per-engine commands. See our X-Plane multi-engine throttle setup for the axis-specific details. |
| FSX and Prepar3D | Start with the numbered native throttle controls. If the required independent reverse events or calibration ranges are unavailable, a PC user can use advanced per-engine assignments through FSUIPC. |
Console editions of Microsoft Flight Simulator must use native control mappings and platform-supported hardware; PC-only mapping utilities cannot provide a workaround there.
Why do both engines reverse together—or only one respond?
Both engines usually enter reverse because a global command or combined throttle axis remains assigned alongside the numbered controls. Search by input and inspect every device profile, including keyboard, joystick and throttle-quadrant profiles.
- Both reversers move: remove unnumbered reverse, throttle-decrease and combined throttle bindings from that physical gate or axis.
- Only one reverser moves: confirm that the inactive gate sends an input and is mapped to the correct engine number.
- Reverse switches on and immediately off: replace a toggle binding with a hold command, or check whether the hardware is sending repeated button pulses.
- Maximum reverse appears at idle: invert the affected reverse axis and recalibrate its endpoints.
- The lever will not cross idle: widen the idle dead zone slightly and confirm that any physical lock or lift gate is fully engaged.
If the controls list offers only an all-engine reverse command, sensitivity changes will not make it independent. You need numbered full-range throttle axes, an advanced PC mapping layer or aircraft-specific control support.
Why does reverse work in a default aircraft but not an add-on?
A complex add-on may replace the simulator's generic throttle logic with its own detent and reverser calibration. Calibrate the hardware in the simulator first, then use the aircraft's cockpit tablet or configuration panel to define idle and reverse if it provides that facility.
Do not stack a full-range reverse axis and a reverse-gate command unless the aircraft specifically requires both. Competing inputs can make the lever jump, chatter around idle or cancel reverse. Also test on the ground at idle: many aircraft inhibit reverser deployment in flight or while the forward throttle remains above idle, and some types do not fit reverse thrust to every engine.