Hi, this is a work around for DR400 :
Go to the new DR400 folder created by the converter in document folder and find dr400.tmd
edit and change this part with texts below :
// propeller
<[propellergraphics][Propeller][]
<[uint32][PositionID][Fuselage.R]>
<[uint32][OrientationID][Fuselage.Q]>
<[uint32][AngleID] [Propeller.RotationAngle]>
<[uint32][RotationSpeedID] [Propeller.RotationSpeed]>
<[uint32][DamageID] [Propeller.Damaged]>
<[string8][GeometryList][ PropellerDisk ]>
<[tmvector3d][Axis][1.0 0.0 0.0]>
<[tmvector3d][Pivot][1.970000 0.000230 0.532250]>
<[uint32][BladeNumber][2]>
<[float64][Radius][0.955575]>
<[float64][BladePitch][-0.5]>
<[float64][RotationSpeedFade][10.0]>
>
you lose propeller and cone in 3D model but inside the plane you 'll see nothing and you'll fly with DR400