FLAi: FSX and P3D Model Matching for VATSIM

A free download for the VATSIM community

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About FLAi

FLAi is a complete AI package featuring your favorite aircraft and airlines for VATSIM. The package includes more than 100 aircraft models and 2,000 liveries, compatible with all versions of FSX and Prepar3D. The package was created in 2018 by bringing together vPilot AI by Ryan Parry and BVAI, from Boston Virtual ARTCC.

About Boston Virtual ARTCC

Lorem Ipsum Boston Virtual ARTCC (BVA) is an integrated community of pilots and air traffic controllers operating in the Boston ARTCC on VATSIM. BVA provides a free online training and simulation environment that is a level above what is available from flying in the single player environment. Some of the creators of FLAI are proud Boston Virtual ARTCC members.

Boston Virtual ARTCC’s numerous community-based and self-study programs help foster an environment where everyone is willing to learn and happy to help. The community is run entirely by volunteers and supported by donations.

Visit BVA


The preferred method of installation for FLAi is to use the provided installer. The installer provides a streamlined download, and also allows you update FLAi by only downloading files that have changed (rather than re-downloading the entire package).

Download FLAi Operations Center Manual Installation


FLAi is made possible by freeware developers who have created and shared content for the community. Thanks to the individuals below for contributing to this project.

Livery Contributors

Andy Carroll, Bernard Tritschler, Brian Wheatley, Bruno Koppel, Charles Dayhuff, Chris Baker, Christophe Bouville, Dennis Lyng Desezar, Dukgeun Lee, Eduardo Mello, Eirik Olsen, Elias Merino, Elias Merino, Elias Merino, Erez Werber, Erez Werber, Eyal Rokach, Felix Chapman, Finbar Lesmond, Florian Reuter, Gabe Bierbach, Garry Lewis, Gordon Moore, JCAI, Jim Martin, Joel Branchu, Johan Clausen, John Hanf, John Tennent, Juergen Baumbusch, Karl Hannestad, Kyle's AI Works, Maik Voigt, Maksim Rudakov, Manuel Querencias, Manuel Querencias, Marco Wolfsegger, Mariano Bonaccorso, Mike Stewart, Miljan Korac, Morten Blindheim - One Click Hangar, Nils Bindauf, Oliver Kerl, Omer Manisali, Philippe Tabatchnik, Ren Yihe, Robert Williams, Ryan O'Reilly, Syamsani Shamsuri, The Flying Carpet Hub, Zafer El-Khatib

Model Contributors

Alpha India Group, FSPXAI, FSX AI Bureau, HTAI, John Young (MAIW), OSP, PSAI, Raven AI, The Fruit Stand, United Traffic Team

Beta Testers

Alec Liberman, Austin Cirulli, Austin Kurkal, Benjamin Dudley, Brandon Bergna, Cam Bruno, Chris Raabe, Evan Reiter, FS Reborn, Jakob Marker, Jordan Shamblen, Joshua Marshall, Justin Weinberg, Krikor Hajian, Matt Davies, Nate Oines, Ross Carlson, Sotiris Vasiliades, Yunus Aktas


Matthew Miller
Ryan Parry
Szymon Puzdrowski
Evan Reiter


We also actively provide support through our Facebook group. Feel free to message our team there!

Frequently Asked Questions

What should I do immediately after installing FLAi for the first time?
Check out **this** document for more information.

I installed FLAi for Prepar3d V4 with Dynamic Lighting but vPilot doesn’t recognize the aircraft.
Make sure you have started Prepar3d and activated the FLAi Add-On.

Why are my aircraft invisible on FSX?
Make sure you disable all shadows is you’re using FSX.

Why does [aircraft] appear messed up in Prepar3d V4?
Prepar3d V4 is a 64bit application and it does not support FS9 native models. Although we’re doing our best to make sure all of the models are at least FSX native and work in P3D4, we can’t guarantee full compatibility.

What is the difference between the Prepar3d V4 with dynamic lights, and no dynamic lights?
Is it just that, the version with Dynamic lights has models that have been updated to take advantage of Prepar3d V4 Dynamic Lighting. Not all aircraft will have this feature, but those that do will take advantage of it.

Does FLAi support Flight Simulator 2004?
No, FLAi is designed for FSX, Prepar3d V1, V2, V3, and V4. Additionally, it is specifically designed for vPilot which does not support FS2004.

Does FLAi support PSX?
Not officially. While you may use PSX with FLAi, we can not offer any support.

Where do I get flight plans for FLAi?
There are no flight plans for FLAi. This package is designed for use on the Vatsim network using the vPilot client.

Can I add my virtual airline livery?
In order to add your virtual airline you must meet the following. If you do meet the following, please contact us and we will direct you towards getting the proper paintkits.
  1. Verifiable callsign statistics that shows consistent activity.
  2. Consecutive activity for at least six months and thereafter.
  3. At least thirty active pilots on pilot roster.
  4. ICAO does not conflict with RW ICAO.
  5. Virtual airline has to make repaints for AI models.
  6. FLAi reserves the right to remove any textures when it deems the virtual airline has become inactive or does not fit the criteria above.

Is there an uninstall program for FLAi?
No, removing FLAi is a manual process in which you must delete the FLAi folders.

Can I use FLAi offline?
You cannot use FLAi offline. In order for FLAi to work properly you must be connected to the Vatsim network.

My installation path in the FLAi Ops Center settings has disappeared and I can’t update. What do I do?
Re-select the same path as you've used last time to install FLAi.

Is FLAi compatible with the new Microsoft Flight Simulator?
At this time, FLAi is not compatible with Microsoft Flight Simulator (MSFS). We do not anticipate being able to offer compatibility until the third-party model and livery development community is able to offer MSFS-compatible models.

FLAi is powered by third-party developers who create the models and liveries that are included, with their permission, in our package. We are aware of a conversion process from FSX models. However, out of respect for the work these developers have done, we do not wish to modify or convert their work without express permission. Plus, those with access to the original files will produce a better MSFS model than we would be able to. (Furthermore, some EULAs do not allow for the release of models that have been converted to work in other simulators.)

We understand that several third-party developers are already looking at converting their projects. For example, one of the groups that has built many of the models we use says “MSFS models will be coming in the future but not before the full P3D PBR conversions are complete since they share many graphical aspects with MSFS”.

As enough MSFS-compatible models and liveries become available, we will look at building a version of FLAi that will work with MSFS. The timing of such a version is entirely dependent on when those who have created the models we use in FSX and P3D rebuild them for MSFS.

I see aircraft on the ground with landing gear retracted. Is this an FLAi issue?
This is an issue outside of our control. The models themselves have landing gear available. However, in some circumstances, the gear may show as retracted when the aircraft is on the ground. This appears to be caused by a combination of the coding of the aircraft the other pilot is flying and the pilot client in use on the network. Unfortunately, there is nothing FLAi can do to resolve this.

How do I suggest a livery addition?
The package includes hundreds of hundreds of liveries from around the world. We do our best to keep FLAi as up-to-date as possible but also recognize that airlines and liveries change regularly. If you have a suggestion for the package, please use the contact form below to get in touch with our team.

Why isn’t [this aircraft] in FLAi?
We don’t create aircraft models or liveries; we rely on developers in the community who have provided them and worked to compile them into the FLAi package. If a particular aircraft model is not included, chances are we don’t have access to a working model. (Remember, we need specifically-created models to use in matching to keep frames low.) For example, we have been unable to locate a freely-available model of a Concorde that could be used in model matching without having a significant negative impact on frame rates; that’s why there is no Concorde in the package. In addition, we try to keep the package limited to real-world operational aircraft and airlines, removing those airlines or aircraft that are no longer in service.