I think all this is pretty interesting.... would like some thoughts about something I keep thinking about. Maybe we could get away from planes for a second and talk about our automobiles? It uses rubber motor mounts to isolate engine vibration from the rest of the car, right? So take those out and replace them with steel and bolt it direct for a second. You would imagine lot's of vibration, right? Now let's install some plastic mounts. Would you imagine you would have the same vibration level as the solid mounts, more than , or maybe, just a little less? That would be my bet, a tad less, but probably not a lot. Certainly though, not more than the solidly mounted engine?

Bringing this thought back to planes, wondering how the aluminum mount might differ from a solidly mounted automobile engine?