I use I.A.R.-80 & I.A.R.-81 from
https://www.sas1946.com/main/index.php/topic,1526.0.html. Once I put wheels from Mod Wheels V5.7, I get blue sky. The same appears with stock I.A.R.s if I put the wheels. Once delete them, everything is OK.
This is the log. Sorry, but I did not understand how to correctly post the log ((
INTERNAL ERROR: Can't open file '3DO/Plane/TEXTURES/gear29.tga'
[8:32:37] WARNING: object '3DO/Plane/TEXTURES/gear29.tga' of class 'TTexture2D' not loaded
[8:32:37] INTERNAL ERROR: Texture required
[8:32:37] WARNING: object '3DO/Plane/IAR-80/Gloss1D0ok.mat' of class 'TMaterial' not loaded
[8:32:37] INTERNAL ERROR: Texture required
[8:32:37] WARNING: object '3DO/Plane/IAR-80/Gloss2D0ok.mat' of class 'TMaterial' not loaded
[8:32:37] INTERNAL ERROR: Material: Can't load 'Gloss2D0ok.mat'
[8:32:37] Mission error, ID_04: java.lang.RuntimeException: INTERNAL ERROR: Material: Can't load 'Gloss2D0ok.mat'
[8:32:37]
[8:32:37] java.lang.RuntimeException: INTERNAL ERROR: Material: Can't load 'Gloss2D0ok.mat'
[8:32:37]
[8:32:37] at com.maddox.il2.engine.HierMesh.Load(Native Method)
[8:32:37] at com.maddox.il2.engine.HierMesh.<init>(HierMesh.java:596)
[8:32:37] at com.maddox.il2.engine.ActorHMesh.setMesh(ActorHMesh.java:89)
[8:32:37] at com.maddox.il2.objects.air.Aircraft._setMesh(Aircraft.java:3540)
[8:32:37] at com.maddox.il2.objects.air.Aircraft.<init>(Aircraft.java:2005)
[8:32:37] at com.maddox.il2.objects.air.AircraftLH.<init>(AircraftLH.java:29)
[8:32:37] at com.maddox.il2.objects.air.Scheme1.<init>(Scheme1.java:16)
[8:32:37] at com.maddox.il2.objects.air.IAR_8X.<init>(IAR_8X.java:14)
[8:32:37] at com.maddox.il2.objects.air.IAR_80.<init>(IAR_80.java:25)
[8:32:37] at java.lang.Class.newInstance0(Native Method)
[8:32:37] at java.lang.Class.newInstance(Unknown Source)
[8:32:37] at com.maddox.il2.game.Mission.loadAir(Mission.java:1343)
[8:32:37] at com.maddox.il2.ai.Wing.load(Wing.java:145)
[8:32:37] at com.maddox.il2.game.Mission.loadWings(Mission.java:1111)
[8:32:37] at com.maddox.il2.game.Mission._load(Mission.java:487)
[8:32:37] at com.maddox.il2.game.Mission.access$000(Mission.java:135)
[8:32:37] at com.maddox.il2.game.Mission$BackgroundLoader.run(Mission.java:433)
[8:32:37] at com.maddox.rts.BackgroundTask.doRun(BackgroundTask.java:155)
[8:32:37] at com.maddox.il2.game.MainWin3D.loopApp(MainWin3D.java:108)
[8:32:37] at com.maddox.il2.game.Main.exec(Main.java:479)
[8:32:37] at com.maddox.il2.game.GameWin3D.main(GameWin3D.java:235)
[8:32:46] 1>mp_dotrange FRIENDLY DOT 14.000001 COLOR 10.0 RANGE 10.0 TYPE 10.0 ID 10.0 NAME 10.0 ALTICON 0.1 ALTSYMBOL + ALTCOLOR 3
[8:32:46] 1>mp_dotrange FOE DOT 14.000001 COLOR 10.0 RANGE 10.0 TYPE 10.0 ID 10.0 NAME 10.0 ALTICON 10.0 ALTSYMBOL + ALTCOLOR 0
[8:32:46] null
[8:32:46] java.lang.NullPointerException
[8:32:46] at com.maddox.il2.objects.air.Aircraft.missionStarting(Aircraft.java:3008)
[8:32:46] at com.maddox.il2.game.Mission.doMissionStarting(Mission.java:2314)
[8:32:46] at com.maddox.il2.game.Mission.doBegin(Mission.java:2384)
[8:32:46] at com.maddox.il2.game.cmd.CmdMission.exec(CmdMission.java:83)
[8:32:46] at com.maddox.rts.CmdEnv.exec(CmdEnv.java:378)
[8:32:46] at com.maddox.il2.gui.GUIMission$4.doAction(GUIMission.java:106)
[8:32:46] at com.maddox.rts.MsgAction.doAction(MsgAction.java:36)
[8:32:46] at com.maddox.rts.MsgAction.invokeListener(MsgAction.java:152)
[8:32:46] at com.maddox.rts.Message._send(Message.java:1217)
[8:32:46] at com.maddox.rts.Message.sendToObject(Message.java:1191)
[8:32:46] at com.maddox.rts.Message.sendTo(Message.java:1134)
[8:32:46] at com.maddox.rts.Message.trySend(Message.java:1115)
[8:32:46] at com.maddox.rts.Time.loopMessages(Time.java:180)
[8:32:46] at com.maddox.rts.RTSConf.loopMsgs(RTSConf.java:101)
[8:32:46] at com.maddox.il2.game.MainWin3D$Background.step(MainWin3D.java:159)
[8:32:46] at com.maddox.rts.BackgroundTask.doRun(BackgroundTask.java:167)
[8:32:46] at com.maddox.il2.game.MainWin3D.loopApp(MainWin3D.java:108)
[8:32:46] at com.maddox.il2.game.Main.exec(Main.java:479)
[8:32:46] at com.maddox.il2.game.GameWin3D.main(GameWin3D.java:235)
[8:32:46] Mission: Quick/Crimea/CrimeaBlueScramble00.mis is Playing
[8:32:46] WARNING: ***( GL error: 0x0500 (pBuf11a)
[8:32:47] Time overflow (0): speed 0.9244992
[8:32:58] ObjState.finalize: Object of com.maddox.il2.objects.air.IAR_80 NOT destroyed
[28.09.2018 8:33:02] -------------- END log session -------------