Here's an effects addon for the YF-19. This will add afterburners that activate with the throttle and smoke effects. It will also give wingtip contrails that activate with like 2G's (which is like every move it makes at full throttle!). The best part about this addon though is that we've borrowed (stolen, with credit) a sonic boom effect which has a big cloud puff around you when it goes off.
Improved YF-19 Effects Package
P.S. There's also an improved panel. So, those of you who have the older YF-19 one, you still need to put the panel folder from this one in. I've added the lower HUD parts, they don't move because I don't know how to make them do that, but they do look cool!