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AI Flightplanner ver 3.4.1.1 Some aircraft not following taxiways

Was using P3D v4 (which did work for some time and quit working properly and still having the issue in P3D 5. Now I have these two aircraft that simply cannot find the taxiways. They startup and rambly wonder all over the airport... and even on/over water when they reach it.

I am assuming this may because of the two older aircraft (that used to work fine)... P-51(Warbird series) and F-4U (Vought) OR possible P3D?? FYI: I can taxi and fly these aircraft fine.

Does have me puzzled. I have two custom airports ... Johnston Atoll and Midway Atoll. Also using the B-29, B25, B26, DC-4, etc which all work fine.

Anyone have any suggestions on possible solutions. Just doesn't look right if I use the F-18 in a WWII setting, LOL
JON_a.png
 

gadgets

Resource contributor
That some aircraft wander but others do not suggests the problem is not with the airport but, rather, with the aircraft.

Are these (two older aircraft) FS9- (or even maybe FS:cool: vintage aircraft? If so, that would explain why they once worked fine but now no longer do with PV5 or, I assume from your description, late versions of PV4. Use of FS9 aircraft with later versions of P3D has always been a bit dicey. We also know there are numerous technology changes in PV5.

I suspect you may have to find some new favorites with PV5.

EDIT: But, before you discard your favorites, you may wish to explore attempting to convert then to FSX aircraft using MCX.
 
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Yes, I agree. Was working w/P3D 4/latest hotfix... and some months ago started this wacky stuff which, of course, has continued thru v5. I thought maybe a tailwheel lock issue but disabled that in both. with no effect. I can fly both all the P-51's, F-4u's, and *P-40's with no issues. It is them being used as AI Aircraft only.... where the issue occurs.

Being an old dude and flying sim since the floppy disk days... I have been through all versions. What is leading me astray is the fact these once worked in all previous versions of AIFP (I just upgraded to the lastest a few days ago and of course, this issue continues).... and only these two (*now 3) aircraft stopped working properly a few months ago. That is what has me puzzled and why I put this in this forum looking for clues since I have less expertise in the structure of AIPF. It is when being used as AI Aircraft only.... where the issue is now occurring.

Regarding P3D v5 ... so far... the only issue I with some of the older WWII aircraft is some texture issues and missing landing gear and glass from the older B-25 and P-40... which I will fix. (NOTE: The B-25's taxi and fly as AI properly... just no landing gear showing) I was going to add the P-40's but *discovered they are having the same issue. Of course, for the F4u Black Sheep scenery, I am working on... I was hoping to get this issue resolved.

Thanks for your input, Don
 

gadgets

Resource contributor
What is leading me astray is the fact these once worked in all previous versions of AIFP (I just upgraded to the lastest a few days ago and of course, this issue continues).... and only these two (*now 3) aircraft stopped working properly a few months ago.

What is happening with your aircraft in AIFP that has convinced you they are no longer working in AIFP?

AIFP displays certain characteristics about the aircraft you select and includes that information in the compiled traffic file. It does not control the aircraft in Flightsim nor does it tell Flightsim how to control the aircraft. It simply tells Flightsim where (lat/lon) the aircraft should be at certain times. What is it that AIFP is/is not doing that you think it should not/should be doing?
 
Now I have these two aircraft that simply cannot find the taxiways
This is an old problem of the tail wheel Ai aircraft.
This problem already existed in FSX and still exists in P3Dv5.

One more little tip from me...
Do not use user aircraft as AI.
The user planes are much too detailed, often built with extras.
So they press even stronger on the frames.
Pure AI airplanes are made especially for this task.

Military AI can be found for example here ...
(https://militaryaiworks.com/)

There are for example:
P-51 Mustang
T-6 Texan
P-47 Thunderbolt

But even if you use these AI-planes with tail wheel you have to adjust the aircraft.cfg a bit.
Only then these airplanes follow the taxiway path of the AFCAD.

In the aircraft.cfg of the P-51 from MAIW you should change the following line...

empty_weight_yaw_MOI =16309.41000 // 5436.47000

red
= original value
green = my changed value

But this value only applies to the P-51 from MAIW !
For other aircraft I would have to determine it first.
 

tgibson

Resource contributor
I agree with Mike - it's a cfg file issue. Editing the contact points can help, along with other things lik MOIs.

To check this, find a taildragger that taxis properly. Copy the Contact Points section and paste it over the bad plane's section (backup the cfg file first). Try it in the sim (it will not sit on the ground properly - that's OK). If it taxis better then you need to edit the original values.
 
Thanks, guys. Have tried some of the things, to no avail. Still looking around... gonna check out some of the other tail draggers... I know the C-47 and older Navy Beechcraft are ok.. will try a DC3 and see what I can come up with. Still have a couple of other strange things like the B-25 works fine (just missing landing gear due to v5) and the B-26 does taxi for a bit then jumps up in the air and when it comes down it will settle in.. find a taxi then is good. A baggage cart that get stuck at an ILS holding point and now my driveable jeep has no wheels but drives fine, etc. Trying to take this all in... after all this is 2020... the strangest year in my 76 year life. LOL

Appreciate your thoughts... not a major deal... but I tend to like the WWII era since my wifi is the pits now that I moved and can no longer keep my Carrier Ops Session up. So enjoying the older aircraft and moving carrier traffic stuff. I may take a break on this and see what does/does not work in all my Vietnam scenery, I suspect that will be a bigger mess LOL. I can always do the DCS thing... but I enjoy making my old stuff work in ver 5 of P3D. Gives my old brain working and gives this old fart something to do. LOL
 
@SandPro ,
I have tested the AI traffic again extensively.

My AI B-25 has a landing gear and my AI B-26 does not jump on the runway.

2020-11-28_21-49-7-971.jpg

I have not found any F4U-1A Corsair as AI.
But there is a freeware F4U-1A Corsair and this one I converted to an AI.
My AI F4U-1A Corsair now has two models.
The wings are folded up when parking and they are folded down when taxiing.
And the second model keeps the wings down.

2020-11-28_19-18-43-395.jpg

2020-11-28_19-33-2-594.jpg

The glass roof closes on takeoff and opens on landing.

Since the pictures are quite big, I put them into a spoiler.
Just click on them to open them.

If you are interested in the AI models, just write me a PN.
 
Thanks, I will get back to you on that.

I got hit by a riskware that trashed all my 6 drives. Currently having to rebuild everything all over again... of course, that is going to take a while.

All the aircraft I am using are actual flyable models that I can fly. I am using AIP3 (current version) and simply using flight plans for my eye candy. It seems to be an issue with the tail draggers at issue here and... and simply went bonkers and I can't figure out why... all others work fine.

The B25 & P-40 landing gear are simply texture issues now that I am using P3d V5+hf... and I will fix those at a later time.

I appreciate your response.
Sandpro
 

gadgets

Resource contributor
If all you are looking for is "eye candy", them perhaps you'd have better results with SAMM
 
I use SAMM... I guess I should have said "flying eye candy." Example... Using a wide variety of different aircraft coming and going out of custom (JON) Johnston Atoll I made for WWII Era. I have bombers, transportation, and fighters taking off and landing all the time... along with some parked static aircraft on the ground etc. I can grab my F-4u and throw out CV-6 and some moving support ships using AICarriers and do carrier ops, or chase after one of the bombers and do an escort. Even have the Enola Gay coming and going... as it refueled there. This is the kind of stuff I used to do in multiplayer all the time on my FSX Carrier Ops server (which, IF, I can ever get a decent internet like I had before I moved... put the 24/7 session back up.)

Again, I appreciate your suggestion and comment.
 
This is an old problem of the tail wheel Ai aircraft.
This problem already existed in FSX and still exists in P3Dv5.

One more little tip from me...
Do not use user aircraft as AI.
The user planes are much too detailed, often built with extras.
So they press even stronger on the frames.
Pure AI airplanes are made especially for this task.

Military AI can be found for example here ...
(https://militaryaiworks.com/)

There are for example:
P-51 Mustang
T-6 Texan
P-47 Thunderbolt

But even if you use these AI-planes with tail wheel you have to adjust the aircraft.cfg a bit.
Only then these airplanes follow the taxiway path of the AFCAD.

In the aircraft.cfg of the P-51 from MAIW you should change the following line...

empty_weight_yaw_MOI =16309.41000 // 5436.47000

red
= original value
green = my changed value

But this value only applies to the P-51 from MAIW !
For other aircraft I would have to determine it first.
Thanks for the information. Just to be clear ... these are NOT AI aircraft, but actual flyable... and set up using flight plans (as all my other aircraft) ...and until recently they have worked properly for over a year. Only two things have changed... I am now using a later version of both AIFP and P3D v5... just trying to figure which of the two started this problem. I did follow your suggestion... no joy, so far. again, Thanks

FYI, I have rebuilt my computer and have everything working now.. if you could provide me a link to the AI F-4u... I could use that as a reference to possibly fixing the other tail draggers... I would appreciate it. I am leaning towards the problem being something different after the hotfixes and new SDK for P3D.
 
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gadgets

Resource contributor
I am now using a later version of both AIFP and P3D v5... just trying to figure which of the two started this problem.
SInce AIFP does nothing with aircraft when creating traffic files other than nominate aircraft, I suspect you'll find the culprit to be PV5.
 
Only AI aircraft with tailwheel have the problem that they cannot follow the taxiway path of the AFCAD.

This is neither a problem of AIFP nor P3D.
But a problem in the aircraft.cfg...

This problem has existed since AI aircraft with tailwheel have been available
(approximately since FS9/FSX).

As I wrote above...
To solve this problem you have to change the entry empty_weight_yaw_MOI in the aircraft.cfg of the problem AI aircraft.

Then also an AI aircraft with tail wheel follows the taxiway path of the AFCAD.
 

tgibson

Resource contributor
Did you not read that these same planes have been taxiing properly for over a year and only now are having problems?
 

@SandPro

Here the link to the working AI_Vought F4U-1A Corsair (https://www.magentacloud.de/lnk/D6CGgErj)...

@tgibson

Whether the AI aircraft with tailwheel come from MAIW, HTAI or ORBX,
none of them works right away, but only after modifying the aircraft.cfg...

Even the P3D own Maule or Piper J3 Cub, which you can move and fly yourself without any problems, work correctly as AI aircraft only after the modification in the aircraft.cfg.

The AN-2 from SBAI is one of the few AI tailwheel airplanes which work without modification.
 
Hi Tom,
@SandPro is using user planes as AI planes.

My guess...
There was an update of the user aircraft, which overwrote the old entries in the aircraft.cfg.

A small test example from me....
I create a flightplan with AIFP from KMKY to KAPF and back with the standard Maule M7 of the P3D (v5.1).

Original aircraft.cfg entry...
empty_weight_yaw_MOI = 1630.0
The Maule does not follow the taxiway of the AFCAD.

I modify the aircraft.cfg of the same Maule.
empty_weight_yaw_MOI = 4890.0
The Maule follows the taxiway of the AFCAD.

When the P3D is updated, the aircraft.cfg is overwritten and the aircraft no longer follows the taxiway of the AFCAD.
 
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