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PC Pilot Cover

The new September/October issue of PC Pilot is now available! Prepar3D v4 is featured as this issue’s cover story including a full review.

More details on this release can be found on PC Pilot’s website here.

Originally launched in 1999, PC Pilot is the world’s best selling flight simulation magazine. More information on PC Pilot including how to get the latest issue can be found on their website http://www.pcpilot.net/.


Bergen Community College in Paramus, New Jersey is leading the way in creating experimental unmanned technology and they are using Prepar3D® as one of the foundational technologies to achieve it. Equipped with the state-of-the-art Prepar3D simulation platform, 3/D printers, engineering computer assisted drafting software, and a cultivated staff of professors, students began to create blueprints for a novel aircraft: the UV-4 V/STOL UAV unmanned vehicle.

Find out more about this unique and ambitious STEM effort here.


The Prepar3D team is excited to announce the first Hotfix update to Prepar3D v4.0 ( It can be downloaded immediately from the Purchased Downloads section of the website.

It addresses many reports and requests from our forum users.

For those that are interested in updating, only the Client installer is required for most fixes present in Prepar3D v4.0 Hotfix 1. The Content, Scenery, and SDK installers are optional. Each fix listed below is categorized per installer. Please note you must first have Prepar3D v4 installed to utilize any of the standalone installers (Client, Content, and Scenery).

To install the new Client, you must first uninstall your current Prepar3D v4 Client via Programs and Features in Windows Control Panel.

The Prepar3D v4.0 update will require you to reactivate your product, however if you have an internet connection or have not made any major hardware changes between installations this should not be an issue. For more information please view the Prepar3D v4 Download and Installation Directions.

The newly posted Prepar3D v4 ( Full Download on the Purchased Downloads page includes the Hotfix.

Please be aware that some third party developers might have to update their add-ons to be compatible with the hotfix. Please contact the third party developers directly for any compatibility questions.

Prepar3D v4.0 Hotfix 1

    Client Fixes and Improvements

    • Fixed an issue in VR views that prevented dynamic lighting in the right eye
    • Fixed memory leak related to external views and vehicle textures
    • Fixed performance impact when entering and then exiting VR
    • Fixed text label size mismatches in VR
    • Corrected an issue where a scenario saved from the startup screen would not be loaded after a reset
    • Preventing vehicle sounds from playing during load
    • Fixed a crash on startup due to controllers using bad port and hub values
    • Added an unobtrusive watermark for developer licenses
    • Fix for ICAO entries in the Logbook
    • Added the Delete Scenario button back to the Scenario user interface
    • Fixed effect texture orientations being flipped (e.g. coastline waves)
    • Fixed the Graphics Profile Name not syncing with the correct saved graphics settings
    • Interface windows will no longer move behind main window when losing focus
    • Fixed Logbook issue that was preventing logging start/end points
    • Corrected various issues with the Flight Instructor user interface
    • Added pitch, bank, heading to the GPS broadcast capabilities for electronic flight bags
    • Updated various XML configuration file encodings
    • Corrected a commands binding error with the Steering Set key
    • Fixed issue preventing the vehicle preview screen from rendering in the Edit Scenario window
    • Changed the default textbox to ICAO for the Select Airport user interface
    • Fixed multiplayer crash when using Direct IP connections
    • No longer instantiating radios if they are not configured for an object
    • Fixed an issue where the vehicle preview window would not render in certain views
    • Fixed an issue where View Group selection would be out of sync with the context menu
    • Fixed scenery.cfg encoding issue after leaving the Scenery Library view
    • Fixed an issue where SimConnect applications were receiving the wrong event id
    • Fix for a crash when using index 0 with payload stations
    • Fixed issue related to the flag SIMCONNECT_CLIENT_DATA_PERIOD_ON_SET not working with SimConnect_RequestClientData
    • Fixed null terminating string issue when using RequestDataOnSimObject with ATC strings
    • Fixed an issue where undocking views would not immediately be processed
    • Fixed an issue regarding minimum temperature in the Advanced Weather view
    • Fixed an issue where the Scenery Library was not reporting all errors
    • The Select Airport view’s ICAO search box is now above other search boxes
    • Minor layout updates to the Select Airport screen
    • Content error reports will now have more detailed XML parse error messages
    • Fixed an issue where malformed DLL.xml and EXE.xml files would cause Add-on DLL and EXE to fail to load
    • Fixed an issue where multiplayer settings were not correctly assigned when using the Direct Connect method
    • Added reverse thrust axis events
    • Fixed issues with certain locale settings
    • Traffic settings now save again in Graphics Profiles
    • Added exception handling for error that would occur when certain audio codecs were installed
    • Fixed crash that could occur when making modifications to the Scenery Library with add-on scenery
    • Fixed issue that caused stars to draw in the incorrect order
    • Added Show Only Favorites button back to Vehicle Select Screen

    Content Fixes and Improvements

    • Corrected the clickable mouse area of the RadarGauge
    • Fixed the F-16 speedbrakes

    Scenery Fixes and Improvements

    • Fixed errant river feature in ocean QMID 50,31 (West Africa)
    • Fixed incorrect locations of certain buildings and bridges in Instanbul

    SDK Fixes and Improvements

    • Corrected issues with autogen Annotator building selection that would result in missed or incorrect selections
    • Fixed unicode issues with Traffic Toolbox
    • Fixed an issue where second UV channels were not correctly being exported to .X files
    • Fixed a crash in the Shp2Vec tool when compiling polygons with less than three points

Thanks again for your support!


Prepar3D v4 - Available Now for Purchase & Download

Prepar3D v4 – Available Now for Purchase and Download!

Prepar3D v4 is now available for purchase and digital download directly at the Prepar3D Store!

The Prepar3D v4 release brings many exciting changes and enhancements to the platform. This new release completely changes the simulation landscape with a comprehensive baseline update to a 64-bit architecture. Higher resolution visuals, more objects, increased data precision, larger scenarios, and improved performance are now all possible at levels never seen before in the product’s history. The sky’s not the limit!

Additionally, the Prepar3D v4 release brings dynamic lighting, rain/snow particles, global 3D trees, increased autogen draw distances, a fully reworked software development kit (SDK), new default vehicles, and an extensive list of other features and improvements.

Prepar3D v4 continues the tradition of being the most affordable high-fidelity visual simulation platform on the market. The detailed list of exciting new features and capabilities can be found below!

What do you need to know before considering purchasing Prepar3D v4?

The minimum and recommended Prepar3D v4 system requirements can be found here.

What are the license options and pricing for Prepar3D v4?

To see which version of Prepar3D is right for you, please reference the License Options page.

Acceptable uses of Prepar3D include simulation, learning, and training.

As provided in our End User License Agreement, the Prepar3D application is not to be used, offered, sold or distributed through markets or channels for use as a personal/consumer entertainment product.

You can see pricing directly on our Prepar3D Store.

Is Prepar3D v4 still backwards compatible with legacy content?

Yes in many cases. Most aircraft and scenery add-ons will be compatible with Prepar3D v4, but in some cases developers will need to update their products due to the conversion from 32-bit to 64-bit. For any questions on third party compatibility, please check with the developer of that add-on content.

Are any new vehicles included in Prepar3D v4?

Yes! Please see the Vehicle Library for complete details.

Will previous version of Prepar3D still be available for purchase?

Yes. While development will no longer continue on legacy versions, we will still offer those version for purchase. Many platforms have been developed using legacy versions and we want to ensure that there is no concern or interruption to those companies or efforts.

I have a previous version of Prepar3D, do I get an upgrade or a discount for Prepar3D v4?

Prepar3D v4 is considered a new product release.

If you have purchased a previous version of Prepar3D within 60 days, you can request a refund and then purchase the desired license of Prepar3D v4. Please see the refund policy for more information.

There are no exchanges, upgrades, or discounts available.

I have a developer’s license for a previous version of Prepar3D. How do I update to Prepar3D v4?

If you are a monthly subscriber, you can cancel your current subscription and purchase a new Prepar3D v4 developer subscription. If you wish to keep your previous monthly subscription you can keep renewing it and purchase a new Prepar3D v4 developer subscription. All major versions can be concurrently installed on the same machine. If you have purchased a pre-paid developer subscription and wish to change it out to a v4 developer subscription, please email licensing@prepar3d.com with your request.

Prepar3D v4 New Features

General Platform Updates

  • 64-bit simulation architecture
  • Unicode compatible
  • Modernized User Interface (UI) design for quick navigation and customization
  • Updated native virtual reality (VR) support for Oculus Rift and HTC Vive
  • Updated vector data (coastlines, lakes, rivers, roads, rails, parks, streams and utility lines) for:

    • Africa
    • Middle East (Israel, Turkey, Syria, Lebanon, Iran, Iraq, Afghanistan, Pakistan, Saudi Arabia, and more)
    • Southeast Europe (Greece, Albania, Macedonia, Bulgaria, Romania, Black Sea, and more)
    • Southeast Asia (Indonesia, Philippines, Vietnam, Cambodia, Laos, Thailand, Myanmar, Papua New Guinea, Solomon Islands, and more)
  • Updated custom 3D model placement in Athens, Egypt, Israel, Dubai and Hong Kong
  • Hundreds of new updated generic 3D model buildings in Tel Aviv and Hong Kong
  • Updated Shuttle Radar Topography Mission (SRTM) 90m digital elevation for Southeast Asia and Middle East regions
  • Updated native mission gauges to Scaleform
  • Views and panels can now be docked into any undocked view
  • Updated multiplayer voice chat codec – higher quality chat audio
  • Expanded ribbon drawing capabilities in the Navigation Visuals screen including drawing based on vehicle type and the ability to change color per category
  • Added video recording capability. Can be assigned to a key event in the UI.
  • Control Tower can now be selected in the Select Airport screen
  • Custom cameras can now be saved on a scenario or global level
  • Material temperatures – IR sensor views now react accordingly
  • 3D trees (SpeedTree) integrated into autogen system. This feature can be toggled on and off in the UI under Options – World (Dynamic 3D Autogen Vegetation).
  • New 3D rain/snow system. This feature can be toggled on and off in the UI under Options – Weather (Detailed Precipitation).
  • Dynamic lighting support
  • Support for local SpeedTree wind effects
  • Support for higher resolution ground textures
  • Autogen visibility range can now be configured
  • Updated various textures including runways, taxiways, hangars, and terminals
  • Added SceneryLodOrigin and TerrainLodOrigin fields to camera definitions preventing terrain paging issues when switching between certain views.
  • New and updated default vehicles:

    • F-22 Raptor (Updated)
    • F-35A Lightning II (Updated)
    • F-16A
    • F-16AM
    • F-16C
    • Lockheed Electra 10A
    • Milviz P-38L
    • Sikorsky MH-60K (Updated)
    • Sikorsky S-70A (Updated)
    • Sikorsky UH-60A (Updated)
    • Sikorsky UH-60L (Updated)
    • Sikorsky UH-60M (Updated)
    • Sikorsky UH-60Q (Updated)
  • New default avatars:

    • Army Infantry
    • Navy Male Blue Camouflage
    • Rebel Male (1/2)
    • Soldier Desert
    • Soldier Jungle
    • Soldier Spec Ops
    • Soldier Swat
    • Soldier Winter
    • Arab Male Casual (1/2/3)
  • Steering Set controls can now be set in the UI
  • Added new white smoke marker particle effect
Professional Plus Only
  • F-16 aircraft has weapons and countermeasures
  • Specific avatars have weapons
  • New defensive flare countermeasure
  • Additional advanced graphics features for low latency training devices

SDK and SimConnect

  • Compiler and SDK updated to Visual Studio 2015
  • Scripting capabilities (Scenery/Model/Material)
  • Added PDK functions to draw primitive objects
  • Reorganized and updated SDK Documentation and samples
  • Support for loading managed dll add-ons
  • Avatar object collision can now be configured
  • Added temperature value and scripting to materials
  • Specific cameras can be configured to not output sound when active
  • Custom materials now supported for runways, taxiways, and aprons
  • Added PDK service for reporting plugin errors
  • Added IsSelectableVehicle override to Aircraft and Sim configs allowing vehicle to bypass the category based selection filter
  • Precipitation rate now exposed through ISimObject, Simulation, and Object variables
  • Added rope visual effect support to SDK
  • Added detail texture material scripting support including offset, rotation, blend weight, blend mode, and alpha channel support
  • The PDK is now accessible through the Panels SDK
  • Panel API now available through the PDK
  • Added Environment Force Service to PDK
  • Added IgnorePostProcess entry to camera definition to disable HDR or FXAA on a per camera basis
  • Added interfaces to play sounds in xml gauges using Lua
  • Added second UV channel in model exports and files
  • Exposed Final Alpha Blend material property to material scripts
  • Weather information now available through RPN and Lua scripts
  • Added UV offset property to material scripts and shaders
  • Update materials to support additional Detail Alpha Flags
  • Updated Material Scripting to support second UV Channel and new Detail Properties
  • Friendly names can now be added to control events

Purchase Prepar3D v4 here!


Lockheed Martin is proud to announce that the next generation of simulation and training will start on May 30, 2017 with the public release of Prepar3D v4. The release culminates over eight years of Lockheed Martin development and welcomes major enhancements and new capabilities.

Prepar3D v4

Lockheed Martin’s Prepar3D v4 – available May 30, 2017

Prepar3D v4 completely changes the simulation landscape with a comprehensive baseline update to a 64-bit architecture. Higher resolution visuals, more objects, increased data precision, larger scenarios, and improved performance are now all possible at levels never seen before in the product’s history. The sky’s not the limit!

Additionally, the release brings dynamic lighting, rain/snow particles, global 3D trees, a fully reworked software development kit (SDK), new default vehicles, and countless improvements.

More details will be released over the next week with Prepar3D v4 being directly available from Prepar3D.com on May 30, 2017 at 2:00pm EST.