[socorrista22198]

This file is \IL-2 Sturmovik 1946\Files\3do\Effects\Aircraft\GrayGroundDust1.eff in Uranium Effects Mod. Make a backup of it, open it with notepad and replace all text for this one:

[ClassInfo]
ClassName TSmokeSpiralParams
[General]
MatName ../TEXTURES/Smoke.mat
Color0 0.9 0.8 0.7 0.05
Color1 0.9 0.8 0.7 0.5
nParticles 256
FinishTime -1.0
MaxR 12
PhiN 0.0
PsiN 0.0
LiveTime 2.0
TranspTransitionTime 3.0
EmitVelocity 75.0 165.0
EmitFrq 12.0
Wind 1.0
Size 4.0 36.0
GasResist 0.075
VertAccel -1.0
Rnd 0.75
EmitTheta 1.0 40.0