Install downloaded aircraft in X-Plane 11 correctly: locate the .acf folder, copy it to Aircraft, select it, and solve common loading problems.
To install a downloaded aircraft in X-Plane 11, extract its archive, find the folder containing the aircraft’s .acf file, and copy that complete folder into X-Plane 11/Aircraft. Start X-Plane, open New Flight, select the aircraft, choose a livery if available, then load the flight.
Where should X-Plane 11 aircraft be installed?
A complete aircraft belongs somewhere inside the X-Plane 11/Aircraft directory. X-Plane scans subfolders, so you can create a category such as Aircraft/Downloaded Aircraft to keep add-ons separate from the default fleet.
A correct installation normally resembles X-Plane 11/Aircraft/Downloaded Aircraft/My Aircraft/My Aircraft.acf. The exact X-Plane location varies between standalone and Steam installations; use the Aircraft folder beside the executable for the copy of X-Plane 11 you actually launch.
Do not scatter the package’s files directly across Aircraft, and do not put a complete aircraft in Resources/plugins. Aircraft-specific plugins normally remain inside the aircraft’s own plugins folder unless its documentation explicitly says otherwise.
How do I install the aircraft step by step?
- Check compatibility. Confirm that the download supports X-Plane 11. An aircraft built only for X-Plane 12 should not be assumed to work in X-Plane 11.
- Extract the archive completely. Do not run the aircraft from a ZIP, RAR or 7z archive. If the package structure is unclear, our archive extraction and installation guide explains how to locate the folder that must be copied.
- Find the aircraft folder. Open the extracted files and look for one or more
.acffiles. The folder directly containing those files is usually the folder to install. Keep its accompanyingobjects,cockpit,plugins, sounds and other supplied folders together. - Copy the complete folder. Place it under
X-Plane 11/Aircraftor a custom subfolder beneath it. Avoid overwriting a default Laminar Research aircraft unless the download specifically modifies that model and instructs you to make a backup first. - Read the supplied documentation. Some aircraft require a separate dependency, licence activation or special first-start procedure. Follow only the instructions supplied for that particular package.
- Restart X-Plane 11. Open New Flight, use the aircraft selector or search box to find the model, select it and load the flight.
If the download uses an installer rather than an archive, follow its prompts carefully. When it asks for the X-Plane directory, it may require the main X-Plane 11 folder rather than the Aircraft subfolder.
Did I download an aircraft, livery or update?
The presence of an .acf file is the quickest way to distinguish a flyable aircraft from a repaint or patch.
| Download type | What it contains | Where it goes |
|---|---|---|
| Complete aircraft | At least one .acf file plus supporting files | Inside X-Plane 11/Aircraft |
| Livery or repaint | Texture files, usually without an .acf file | The matching aircraft’s liveries folder |
| Update or patch | Only changed or replacement files | Applied to the exact base aircraft version specified |
A livery cannot be selected as a separate aircraft. It requires the original model, and its folder structure must be preserved; our X-Plane livery installation instructions cover that process.
For a manual full-version update, keeping a backup and replacing the old aircraft folder is often safer than merging files blindly. Merging can leave obsolete plugins or objects behind. Use an included updater when the developer specifically provides one.
How do I use the installed aircraft?
Select the model from X-Plane 11’s aircraft chooser, then choose its available variant and livery before starting the flight. The aircraft’s customise controls can also provide weight, balance and related configuration options.
Read the included manual before assuming the cockpit works like a default X-Plane aircraft. Complex add-ons may have their own electrical logic, tablet, configuration panel or start-up sequence, and they may ignore X-Plane’s generic “start with engines running” option.
Standard axes and buttons use your normal X-Plane assignments. For aircraft-specific functions, open the keyboard or joystick settings after loading the model and search the command list for commands added by that aircraft or its plugin.
Why is the downloaded aircraft not showing in X-Plane 11?
An aircraft usually disappears from the selector because it is still compressed, its .acf file is buried in the wrong nested folder, or it was copied into a different X-Plane installation.
- Search the installed folder for an
.acffile. If there is none, the package is not a complete flyable aircraft. - Check for an unnecessary wrapper folder created during extraction, such as
Aircraft/My Aircraft/My Aircraft/My Aircraft.acf. - Confirm that you installed it into the same X-Plane 11 copy you launch.
- Remove aircraft-selection filters and enable the option to display compatible aircraft from older X-Plane versions when appropriate.
- Restart X-Plane after moving or repairing the folder.
Our focused guide to fixing aircraft missing from the X-Plane 11 selector covers folder nesting, filters, missing .acf files and multiple installations in more detail.
If the aircraft appears but its displays, switches or systems do not work, inspect Log.txt in the main X-Plane 11 folder for plugin errors. A blocked plugin, missing dependency or incompatible aircraft version is more likely than an incorrect joystick setting. A model that loads without a usable flight deck may instead be an AI-only package or an incomplete download; see our explanation of why downloaded aircraft sometimes have no cockpit.
Can X-Plane 12 aircraft be used in X-Plane 11?
X-Plane 12 aircraft are not generally backwards-compatible with X-Plane 11. Newer aircraft formats, systems and plugins may rely on features X-Plane 11 does not provide, so download the dedicated X-Plane 11 build unless the package explicitly states that the same version supports both simulators.