WOW! That's really awesome, Kixum. Very cool animation. (And that's one particularly mean rubber-band airplane.) It's really good to hear some of the problems that Carrara has in using my explosion tutorial; if you'd let me know some deatil about it, I can re-write the tutorial to include the tricks you come up with. (I'll be happy to credit you, too....) Using the export function to get a deformer applied is a good workaround. Just export the cloud shape as a DXF or 3ds model and re-import it.... How did you get your sparks to vanish at different times? That added some tremendous realism to the shot, I think. Only nitpick I have is that I'd probably turn the shadows off on the flame clouds; they cast a shadow on the disk and it looks a bit odd to me. I LOVE the interactive light from the torpedo. Is that just a bulb light that you moved through the scene and added a lens flare or some such? It looks great.