Rob Singer

737 crashes on runway at startup

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I purchased a new version of PMDG for P3DV4, and installed the updates. P3DV4 loads fine and works well with the default aircrafts. When I change the aircraft to the PMDG 737, the plane loads, and goes through the 18 second initializing phase. A little bell sounds once the initialization is complete. About 10 seconds later, the screen changes to the plane being on the runway in crash mode. (The plane crashes - not the computer). I do not touch anything, not the mouse not the keyboard, not the yoke, throttle etc.. The screen just changes on its own. It then reloads back for initialization, then crashes again on the runway.

Please let me know how to correct this.

Thanks

Rob

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Hello Rob!

I do have a similar problem as you do.  I've selected PMDG 737 on the change vehicle screen on P3D V4.1 after that I've clicked ok button for return to startup screen and click ok button goes to the runway.  I've opened the menu bar when I was on the runway; I have selected vehicles pulled down the dropbox and I've clicked select went to change vehicles screen then I've selected same aircraft but different airline and then went back to the runway.  Roughly minute later; the plane drop and crashed on the runway when I wasn't touch a keyboard and joystick.

I've tried to turn off the crash detection but the problem will be different; I've return to the runway and minute later; the plane drop and  move bouncing on the runway but I also don't touch a keyboard and joystick either.

Chee Voon

 

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Try different sceneries, different mesh settings?  I had one scenery that would drop the NGX 50 feet when ever I changed views.  It was the scenery.

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Hi, I do have the same issue, except is ONLY in multiplayer mode, I have tried everything posible, clean install everything including Windows 10, no luck. 

If you turn off the crash detect option, the problem remains, the airplane rattles as if it was bouncing on the floor, the bouncing increases itself quickly until the airplane is moving 

all over the place. 

can anybody help, please?... appreciated 

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See page 45, PMDG 737 Introduction Manual.  Change your mesh settings.

Appears Dan solved the OP's issues.  Please post any new issues in another topic.  Thanks.

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Thanks for the advise. I turned off crash detect in P3DV4 and it for me, IT WORKED. I only did one flight, but it did not go into the crash loop that I was complaining about.

THANKS!!

Rob

 

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Hi, just thought I'd add the text here for the Mesh Issue.

 

The aircraft “bounces” on the ground when I change views:
We have traced this issue to using a mesh resolution setting that is higher in resolution than 19m. These are the 10m, 5m, 2m, and 1m settings. This appears to be a terrain engine bug and isn’t something we can fix. If it bothers you, you can set the terrain resolution to 19m or lower. These are the 19m, 38m, 76m, 152m, or 305m settings.
Be aware that lowering this setting can affect the use of sceneries that require the higher setting. For example many airports require high settings to simulate taxiway bridges and similar structures. If you have high resolution terrain mesh installed this will also decrease the detail of mountains and other such features if you go below the mesh’s level.

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On 10/15/2017 at 7:44 PM, Rob Singer said:

I purchased a new version of PMDG for P3DV4, and installed the updates. P3DV4 loads fine and works well with the default aircrafts. When I change the aircraft to the PMDG 737, the plane loads, and goes through the 18 second initializing phase. A little bell sounds once the initialization is complete. About 10 seconds later, the screen changes to the plane being on the runway in crash mode. (The plane crashes - not the computer). I do not touch anything, not the mouse not the keyboard, not the yoke, throttle etc.. The screen just changes on its own. It then reloads back for initialization, then crashes again on the runway.

Please let me know how to correct this.

Thanks

Rob

This is exactly what I get, but I've noticed it only loses it's ground reference after a crash, but then it won't get it back.  However I found an answer online that allows a fairly quick restart.  I even wrote a batch file to allow me to delete the files that cause me the problem (I backed up originals first)

The files I delete are 

C:\Users\Yourname\AppData\Local\Lockheed Martin\Prepar3D v4\Prepar3D_Default.fxml
C:\Users\Yourname\AppData\Local\Lockheed Martin\Prepar3D v4\Prepar3D_Default.wx
and C:\Users\Peter\AppData\Roaming\Lockheed Martin\Prepar3D v4\Prepar3D.cfg

When you restart P3D, it remakes these files and then goes to the default start screen.  If you've saved scenarios, such as a PMDG 737 at an airport, you can easily reload this.

I tried loading an LM aircraft after the first problem, but it also was stuck in the runway, however, it didn't invoke a crash, but it wouldn't accelerate, wonder why? lol.

I have video and screenshots of what happened.  I also have the before and after Prepar3D.cfg files, which are different.

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1 hour ago, Patty_O_Doors said:

This is exactly what I get

As is noted in the Intro:

Don't allow any other aircraft to load prior to the NGX.

Don't re-load the NGX.

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You can not switch aircraft once you have selected the PMDG737

Doing so will erase all programming. The best thing to do is to select the PMDG737 at start up and load it at the airport you plan to depart from the gate is not that important but it can create some minor problems so do not change gates after loading the sim.

This aircraft needs to know its exact location in order for every thing to work correctly which means you have to input the GPS position and there is a difference between two different gates even is they are side by side there will be some difference.

 

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On 1/15/2018 at 9:37 PM, scandinavian13 said:

As is noted in the Intro:

Don't allow any other aircraft to load prior to the NGX.

Don't re-load the NGX.

In the Intro of the Manual? Pardon my question if it is, but I've only just started using P3D V4 after FSX, and still getting used to it.

Okay, logged in and read, thanks. Steps from PMDG

Edited by Patty_O_Doors
Additional Information.

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16 hours ago, Patty_O_Doors said:

In the Intro of the Manual?

Correct. Start > All Programs > PMDG Simulations > NGX > Intro Manual
...or Start > All Programs > PMDG Simulations > Operations Center > Find the NGX in the OC > Documentation Tab > Intro Manual
...or via Win Explorer: <sim folder>\PMDG\NGX\Documentation\Intro Manual

16 hours ago, Patty_O_Doors said:

Okay, logged in and read, thanks. Steps from PMDG

This explains the same thing, too, so that'll do!

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Okay, further investigation reveals; I can fly around land, take off change scenarios (I think), but after a crash or even a "Ctrl ;" Reset, the aircraft sinks into the runway, Main U/C first then Nose Gear, and at that point, it crashes.  As per this video Video of PMDG 737 sinking into runway

It's quite a deliberate action, as if something is resetting incorrectly, height datum or something.  Deleting the files listed earlier in the post and restarting, cures it temporarily. 

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You've acknowledged the mesh issue but not how the aircraft should be loaded when starting a new session.  It will be helpful in helping you if you'd confirm you are not loading one scenario on top of another.

Also, please confirm this is happening on a default airport and your mesh setting.

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On 1/18/2018 at 9:46 PM, downscc said:

You've acknowledged the mesh issue but not how the aircraft should be loaded when starting a new session.  It will be helpful in helping you if you'd confirm you are not loading one scenario on top of another.

Also, please confirm this is happening on a default airport and your mesh setting.

My MESH setting is 19m, which I believe is acceptable, yes? I load from the startup screen, my default airport of Glasgow Scotland and the PMDG 737 800.  After an incident with a heavy landing at another airfield, the system reset, I presume to the default I started with, then it crashes on start.  I'll double check this.

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1 hour ago, Patty_O_Doors said:

my default airport of Glasgow Scotland and the PMDG 737 800

If the PMDG aircraft is your default aircraft then that can cause problems.  Only use non complex aircraft as the default.

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On 1/21/2018 at 4:38 PM, downscc said:

If the PMDG aircraft is your default aircraft then that can cause problems.  Only use non complex aircraft as the default.

Oh well, I can live with resetting the Configs everytime.  It only happens after a reset or crash, I'll just crash less :cool:

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4 hours ago, Patty_O_Doors said:

I'll just crash less

...or just turn crashes off. Crash detection in the sim is awful.

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If you reset the situation you do nothing else but reloading the airplane. Doesnt work with PMDG, FSLabs, Majestics, etc.. they calculate too many things outside the simulator and too complexe than the simulator‘s reset function could handle it. If you need to restart: quit the simulator and restart it, choose your flight and load it up. 

What you CAN do to speed it up: create and load your flight, save it and then after restarting the simulator load the saved flight. But changing the situation or resetting it won‘t work with complex addons.

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On 1/23/2018 at 11:26 AM, Ephedrin said:

If you reset the situation you do nothing else but reloading the airplane. Doesnt work with PMDG, FSLabs, Majestics, etc.. they calculate too many things outside the simulator and too complexe than the simulator‘s reset function could handle it. If you need to restart: quit the simulator and restart it, choose your flight and load it up. 

What you CAN do to speed it up: create and load your flight, save it and then after restarting the simulator load the saved flight. But changing the situation or resetting it won‘t work with complex addons.

Hi.  Yes that's what I do now, thanks.

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So I've gone back to PMDG childhood as after years in FSX, I've switched to P3D and am starting again.  It's amazing how much time and money I must have spent over a period of years in getting FSX how I liked it which I'm now having to repeat in a matter of days!

On the way, I hit this issue of the 737 adopting a crash position immediately on every loading at any airport or gate. The default F22 did not do this at any location.

I'd just done 2 things in the same session with the 737 loaded:

  • Set up my own panel load state and set it as the default
  • Registered the GSX airport services utility.  This initially seemed to be confused about gate positions and I foolishly allowed GSX to warp the 737 to where it thought the gate should be.  This resulted in the 737 being on top of a scenery object, causing a crash.  That's fine, except every time I tried to reload the 737, the same crash occurred in a very similar way to the OP.

The fault had to be in there somewhere.

Disabling GSX didn't solve the problem and neither did resetting mesh from 5m to 19m.  I began to suspect the PMDG panel state.

In the P3D/PMDG/737NGX/ folder is a file called 737NGX_Options.cfg, which contains amongst a lot of other things, the default panel state setting.  I edited that back to a standard one e.g. StartupPanelState=NGX SHORT. There were also two suspicious looking "Progarm Generated Temporary Scenario" and 2 "Previous Flight.fxml".files in that folder which I removed.

The circumstances that caused my problem to start may be unique, but it's clear the first crash had somehow been "remembered" and repeated by the 737NGX.  It's working perfectly now.

 

 

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4 hours ago, ailchim said:

So I've gone back to PMDG childhood as after years in FSX, I've switched to P3D and am starting again. 

Welcome back, please note that PMDG forum rules ask that we sign our full name on all posts.

I've observed that if you load the PMDG NGX on top of another session that one of the possible results is an instant crash.  Also, it is a good idea to turn off the simulators crash detection because it's not very reliable or accurate.... I think it's there for the arcade game user.

Be sure to refer often to the Introduction document, it has important information on how to set up P3D and to load PMDG scenarios.

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* Don‘t load complex addon aircraft on top of other complex aircraft.

* Don‘t reload complex addon aircraft. If you want or need to restart your flight, close the simulator, wait until it is deleted from the Task manager (hence the main memory), it takes about 10-20 seconds, then restart P3D with the Fighter turning in the start up window and select the addon aircraft. Load.

* Dont use the crash detection, it‘s ridiculous.

*Don‘t let other pseudo assistance start up programs create your flights and start P3D. 

A lot of don‘ts but that‘s how you should be fine.

The mesh setting shouldn‘t be an issue anymore, at least I haven‘t ever had any issues with it running on the lowest number for ORBX. (Since P3D 3) 

 

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My name is in my signature.....  look before lecturing

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