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The Prepar3d Forum

The Prepar3d Forum is a forum for Lockheed's Prepar3d simulation software. Quoting Lockheed Martin; "Prepar3D furthers the development of Microsoft® ESP while maintaining compatibility with Microsoft Flight Simulator X, allowing many thousands of add-ons to be used within Prepar3D."  This forum is for general user-to-user discussions.  Official support for this product can be obtained at Lockheed Martin.  Website - https://www.prepar3d.com/

  1. Started by flotmangooner,

    Hi Recently applied the latest hotfix to V4.5 and something has happened to my coastline wherever i am in the world - i am now getting vertical waves which look like jets of water spurting into the air. Any ideas why this is happening please and how to fix it ? I am using ORBX BASE and VECTOR

  2. Started by kevinc5,

    I installed HF2 by deleting P3D and then installing the full P3D package. Sim works fine. Somewhere along the line I messed up the scenery library, probably when I uninstalled P3D scenery. Now all my Orbx scenery is greyed out and I only see default scenery in the sim. The Orbx files are all in my Orbx library, outside the sim. Should I delete all Orbx scenery and reinstall? Any suggestions? Thanks.

    • 6 replies
    • 1.2k views
  3. Started by Michael Moe,

    Hi, Did my first Vatsim flight with the MaddogX in 4K/4096 Textures (wow i missed that ) from FT EKCH to AS EGLL via ORBX TE Netherlands and ORBX England. Highest VRAM was at EKCH peeking at 8GB . No problems with medium settings but noticed the weather cloud injection was not present so a restart of ASP3D was a must. Overall i am very pleased with the MaddogX and V5 Not latest driver btw 446.14 Michael Moe

    • 0 replies
    • 663 views
  4. Hey there! I've recently developed a Landing Rate Game for Twitch Streamers. Currently it only supports P3D. I'm looking for around 10 streamers to test the plugin so I know it's stable for a release to everybody. This plugin will be open source and people will be free to modify it how they wish. Screenshots are attached of how it currently looks - I plan to modify the default Java GUI stuff into something that looks pleasing. If you are interested in gaining early access, please join my discord and create a ticket! https://discord.gg/UXzqVGt Thanks!

    • 0 replies
    • 741 views
  5. Hi, I am not trying to frame anyone. But on this one i am going to need community support regarding a CTD caused by GSX & Only when GSX is used. My sim works absolutely ok when ran without running GSX service. Why i don't take it to FSDT forum? I already did but turns out Umberto as some says is not acting nice & is declining to provide support for a product i paid. Also he is insisting that i am the only one complaining this issue which i believe is not true. Yes he suggested doing vanilla test & i am declining to do that. Because my logic is the sim the works flawless with all addons installed & without running GSX. Why will it only crash when r…

    • 27 replies
    • 7k views
  6. Started by btacon,

    Pretty consistent. Have done a full re-install, but have not disabled addons yet. Anyone else seeing hangs on exit which often need a task manager touch to close the P3d executable. Also makes it come up in a minimized screen when restarting. Anyone Else? TIA, -Braun

    • 14 replies
    • 1.7k views
  7. Started by pilatuz,

    Seems how using ORBX vector almost every non ORBX airport is on an annoying plateu; does anyone know if there's a fix for this on the way? Is it just better to disable ORBX vector or do the benefits outweigh the costs?

    • 12 replies
    • 4.9k views
  8. Started by ssair1,

    Hello everyone, I would like to uninstall ASCA and just use ActiveSky with Enhanced Atmospherics to test out. However, how can I completely uninstall ASCA, i.e., Sky Textures etc., from v5? Do I have to reinstall the P3dv5 client only? Did ASCA change any files in my root P3D folder or just the add-on folder?Kind regards, S.S

    • 10 replies
    • 4.6k views
  9. Started by yvesamuel,

    Hi, I suddenly get this eror while loading P3D5 HF2 "Error is -2146881269 be sure you remove virtuali from Internet options -Contetn*-publishers- untrested publishers. I had a look, the folder is empty. Any idea? Thank's Yves

    • 4 replies
    • 934 views
  10. Started by rjchalklin1,

    Its been increasingly frustrating overtime so i would like to solve this. P3D seems to lag/stutter every 10-15 seconds i have a good FPS with high settings and a decent system so i am confused why it is lagging so much, the sounds glitch aswell. Is it CPU or the temperature of the computer related at all? My PC specs are: Intel(R) Core(TM) i7-4790 NVIDIA GeForce 1050 Ti 16GB RAM. Windows 10 (64 bit) Any replies are very much appreciated. Thanks.

    • 7 replies
    • 2.2k views
  11. ....see the update via ORBX central. The strange runway texture bug (disappearing layer on certain views) is fixed. The other visual issues, wich probably are not ORBX/LOWI related, are still there. But this seems a P3D V5 issue I think. But...1 fix is in...that´s good news. Marcus

    • 0 replies
    • 645 views
  12. Started by micstatic,

    Wanted to see if anybody could help me. Was successfully running HF1 since it came out. No issues at all. When I installed HF1 I had uninstalled the whole program and reinstalled the whole HF1. Then today I uninstalled P3D Academic (Whole thing). Reinstalled HF2 whole thing. The first initial flights I was able to spawn. Then any intial flight after that would ctd right away when going from 99% scenario load to 100%. Some came up with the DXGI Error Hung. Others were just a complete CTD and I had to reboot windows. I tried clearing shaders and deleting the P3d.cfg and reloading with stock settings. Still CTD. I tried restoring NCP to default. Still CTD. …

    • 148 replies
    • 17.1k views
  13. Started by Hogos,

    Hello folks ! I was adding a photoreal scenery of Europe with autogen, but a doubt arised in my head. Because the scenery (bgl files) and the texture (agn files) come from two different zip files, with different areas coverage, I was unsure to do a good job. In other words the bgls files cover, let's say area A, and the agns area A and part of area B, what is going to happen ? will I see autogen even in area B, which is a standard default scenery (not photoreal), or the it will end up with extra autogen, not required, just in area A ? Is it possible to create two different addon, the first one with just scenery, and the second one with just texture ? …

    • 4 replies
    • 972 views
  14. Started by Alex Miles,

    Hi, I recently installed P3D V4.5 with some UK2000 scenery for EGCC and EGKK. When I open P3D, I get warnings from the scenery.cfg that the locations of the files can't be found and I have a look and it is using the wrong directory, I disable the sceneries as it asks and go to the scenery manager to change the directory but can't disable or delete the scenery. To make it work I add it again under a different name but I still get lots of warnings that it doesn't exist. I found the scenery.cfg in program data but it doesn't contain the Uk2000 scenerys in it to change/delete so everytime I open P3D, I get lots of warnings, any ideas?

  15. Started by Gaz,

    What if my aircraft is the outside position, but I want to turn the camera so that I can see what's behind me, for example. The problem is that I can't do anything but look at the aircraft. Gary

    • 8 replies
    • 1.1k views
  16. Started by OH-LXD,

    Maybe this was discussed before, but why do I have a white line in the horizon? (Should be more like a blue) This is always there, but it is annoying specially in cavok conditions. If you view direct to sun it is not that bad. I use Active Sky and truesky with godrays. Is there an option for this. I like truesky and like to keep using it.

    • 0 replies
    • 841 views
  17. Good day all, Any idea why we have these light poles as we see in the pictures as marked red? This issue started with V5 HF1 and HF2 https://drive.google.com/file/d/1zAcbFLYVwDb-HQjboR4my8kd31ht43wv/view?usp=sharing https://drive.google.com/file/d/1zAcbFLYVwDb-HQjboR4my8kd31ht43wv/view?usp=sharing https://drive.google.com/file/d/1bRoL-_gJzoDDAyij_npVhaBklZFB4DTv/view?usp=sharing https://drive.google.com/file/d/1oyUh7Xv6vavyqsAVmdnM3172KXugDAf5/view?usp=sharing

    • 4 replies
    • 831 views
  18. Hi, I see 5 to 10fps decrease with the above enabled and think this task (still) is CPU bound? EA is enabled. I tried the MaddogX in FT EKCH and had 4096/4K textures and around 8.5gb VRAM used with no crash so far. Michael Moe

    • 0 replies
    • 511 views
  19. Started by Gaz,

    It should be seen properly, but all of the gates have bit red crosses on them: https://photos.app.goo.gl/1yodeb6rDYM27zUz7 How do I fix this? What's wrong with it?

    • 5 replies
    • 643 views
  20. I have noticed this with the release of P3Dv5, HF1 and now HF2. Many airports are now missing parking spots as well as tarmacs at airports as compared to P3Dv4. Where Van Nuys airport (KVNY), in Los Angeles, CA is perhaps the worlds busiest airport for GA aircraft there are some 40+ parking spots in P3Dv4 and zero in P3Dv5! Also included screenshot of Santa Ana John Wayne Airport (KSNA). These shots were taken with a full reinstall of P3Dv5 HF2 with no add-ons... all default. I did post this at LM forums as well but was curious at to what other simmers are seeing? KNVY Van Nuys Airport in Prepar3D v4: KNVY Van Nuys Airport in Prepar3D v5: …

    • 0 replies
    • 789 views
  21. Hello, I have installed 3 repaints for the Manfred jahn's c47" vintage aircraft, Then, I have downloaded from Avsim Library 3 aircraft repaints presented as P3D v4.5 compatible. I have, as usual, copied the folders in the SimObjects/Aircraft folder And I did update the aircrafgt.cfg as I use to do. When P3D v4.5 is running, I want the select one of these repaints and none is visible. Can someone help me resolving this issue? Thanks in advance Bruno

    • 6 replies
    • 1.1k views
  22. Hi Aviators, my thought is, it´ll be helpfull to others to share experiences with this CTD issue. I know that there are many topics already in the forum but from time to time it´s good to start again. My SIM was running for years without any CTD and i´am using a very complex setup for a homecockpit wich is driven by Jeehell FMGS via networked clients. On top of that i have all those other add-ons which injecting data and parameter into P3D, some vie FSUIPC some using SIMConnect, like AS16, PF3, MCE, UTLive, EFB v2, AOC server, GSX, etc. So many potential possibilities of faulting the SIM engine. Then, mid of January suddenly my SIM stopped with the famous ntdll…

    • 50 replies
    • 13.4k views
  23. Started by slod,

    Hi, Can someone tell me where these are stored please? I'd like to make a back-up before I update so I don't have to re-create them all. Many thanks

    • 15 replies
    • 6.9k views
  24. Started by airbusa,

    Dear All, normaly you have 2 white lights and 2 red lights if you are on the right sink path to approach on a runway. In P3DV5 this will not work, you see only 4 white PAPI lights on the most airports. Special P3DV5 versions (e.g. Aerosoft EDDF) are fine. Standard airports in P3DV5 show that problem and most of the payware airports too. Is this a P3DV5 bug? Thanks for answer. Best regards Oliver . (only on special

    • 2 replies
    • 880 views
  25. Hi all, I'm a RW IFR pilot, who tried v5 when it first came out, got a refund after seeing a lot of issues, but just repurchased it. I just did a flight in the Commander and it's obviously monumentally improved with HF1. But about the clouds: The look of them from a distance, to me anyway, is sort of cheesy. I really prefer what I'm used to seeing with the REX products in v4.5. However, how the clouds functinon as you fly through them is just night and day in v4.5 vs. v5. The 2D clouds never really bothered me in 4.5 and I could never figure out what everyone got so worked up over. But v5 is just amazing - true immersion in the clouds. There's no transition from…

    • 26 replies
    • 4.8k views

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