Prepar3D v2.5 - Available Now!

Forum Rules & News
Adam Breed
Lockheed Martin
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Postby Adam Breed » Tue Feb 10, 2015 4:43 pm


Please see for detailed information.

It is recommended that you uninstall v2.4 before installing v2.5. Additionally, if you have any issues running v2.5 it is recommend that you clear all files found in the following folders:

    %PROGRAMDATA%\Lockheed Martin\Prepar3D v2
    %LOCALAPPDATA%\Lockheed Martin\Prepar3D v2
    %APPDATA%\Lockheed Martin\Prepar3D v2
    %USERPROFILE%\Documents\Prepar3D v2 Files

Note: Due to changes to the installation folder structure, Prepar3D v2.5 will not be released in an installer patch form. Please see the included Learning Center.chm for more information.

Many suggestions and comments written on this forum have directly influenced the development of v2.5. Thank you for your support and we look forward to reading your feedback on Prepar3D v2.5!
Prepar3D® Engineering Project Manager

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Postby Chazypax » Tue Feb 10, 2015 4:50 pm

I am running v2.4 with a few aircraft add-ons does this mean I will need to uninstall 2.4 and all my addons or do I just uninstall 2.4 and install 2.5?

Also, to un-install, do I go through my program files or do I use the uninstaller in the setup.exe file?

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Postby david.merak » Tue Feb 10, 2015 5:19 pm

Great News, downloading.. thanks for you effort LM.

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Postby DylanM » Tue Feb 10, 2015 5:37 pm

Thanks again for all the hard work LM Team.

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Location: London

Postby BG2518 » Tue Feb 10, 2015 5:47 pm

Keen to see what you've achieved.

100% thanks for everything you and your staff do.

Plus a BIG thanks for the forum moderators !!!!

BG2518 - Bob.

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Postby cyborgen » Tue Feb 10, 2015 6:16 pm

Very cool !

Two point five is alive :)

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Postby PMDG87 » Tue Feb 10, 2015 6:28 pm

Thanks guys!!!

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Postby mohammadsf » Tue Feb 10, 2015 6:34 pm

Thanks guys!!!

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Postby Endyamon » Tue Feb 10, 2015 7:42 pm

terrain shadows still doesn't work correctly .. never mind .. I have already reconciled :)


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Postby Avidean » Tue Feb 10, 2015 7:56 pm

My first impressions are very good.
Although I am getting Horizontal screen tearing!
Haven't seen that in a long time. Never mind,I'll
get to the bottom of that :-)

Terrain water reflections seem fixed.
I have tried maxing out all shadows
on the high as apposed to the Ultra
setting and they all seem to work
perfectly on my system. Terrain
and cloud shadows playing fine

It is vanilla but I did notice that
the CPU does not appear to be the bottle
neck anymore!!! Did you guys future optimize
for multi-core CPU's. I see in Task manager
that the load is more spread out among the
cores than it was in V2.5?

CPU core 0 on my i7 4770k at 5.1ghz is around
40% to 50% as are the other 3 but they are just a bit
lower while my GTX 780 is nailed to 100% !!?

I am installing PNW now so if I get the same
results I know you did something big :-)

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Postby abranpuko » Tue Feb 10, 2015 7:59 pm

Hello!!! great work!!!

a question: how can i make the path to put in my aitraffic? before, all was in Main section on prepar3d.cfg


Adam Breed
Lockheed Martin
Posts: 1385
Joined: Mon Sep 20, 2010 6:17 pm

Postby Adam Breed » Tue Feb 10, 2015 9:14 pm

Hi abranpuko,

There is now a SimObjects.cfg file inside the %PROGRAMDATA%\Lockheed Martin\Prepar3D v2 folder. Search for "Path Configurations" in the Learning Center.chm for more information.
Prepar3D® Engineering Project Manager

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Joined: Wed Jun 27, 2012 1:04 am

Postby abranpuko » Tue Feb 10, 2015 9:42 pm

thanks Adam!:)

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Postby OldAirMail » Tue Feb 10, 2015 10:21 pm

The download seems to be doing fine.

Thank you guys.

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Postby ggi » Wed Feb 11, 2015 2:54 am

No problems with download or install, however I needed to replace the scenery.cfg with my v2.4 version to get the installed scenery back. ORBX working on a fix for FTX central and ASN also getting worked on for v2.5 compatibility. Very fast fps with P3D recommended settings (lower than I normally use) which I will leave for now as it looks really good.
Thanks to everyone involved with the update!

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