That would allow for rotation on props, but not on vehicles, and it would be unrealistic, since these propellers rotated so fast that you can't see them (the rotation params mod won't allow for rotation that fast).

Ah okay that makes sense, I thought with Ronyx's Prop Rotating Params mod it would be possible but maybe not :( plus yeah the sound would be pretty off haha. Although I thought one could change the associated sound used using ModTools? But anyway, I'm not a modder, so guess I'll have to admire this from afar then :D

I am not sure if you did, or if someone else did. None of the smaller planes will be made into vehicles, because they are props. The game has no mechanism for correctly animating and adding a sound effect for these vehicles. The plane would move without the props spinning, and they would sound like jet aircraft, which will look / sound silly. If you know of a small jet aircraft that you would like, I could make some of those instead.

Any chance for some of the smaller planes to become vehicles? Not sure if I asked you this before, sorry if I did already :p