I have several key frame animated parts. That I need to have display only when the wheels are rolling. I thought I might use the prop rpm to controll when the part displayed by adjusting the variables. The results were less than what I needed. Can any one help? FSDSv2.24 help files state that there are "many sources of information avalible"  in the Display Conditions help article. Can any one point me to any articles that might help?

Glitch